Release 2.12 (#4609)

2024-02-07 23:47:25 +01:00
parent 7abe787778
commit 85a16a9363
394 changed files with 1189 additions and 6735 deletions
--- a/.github/release-drafter.yml
+++ b/.github/release-drafter.yml
@@ -1,17 +1,5 @@
 name-template: '$RESOLVED_VERSION'
 tag-template: '$RESOLVED_VERSION'
-categories:
-    - title: 'Enhancements'
-      labels:
-          - 'feature request'
-          - 'technical debt'
-          - 'translation'
-    - title: 'Fixed bugs'
-      labels:
-          - 'bug'
-    - title: 'Infrastructure'
-      labels:
-          - 'infrastructure'
 exclude-labels:
    - 'duplicate'
    - 'invalid'
--- a/migrations/Version20230126002049.php
+++ b/migrations/Version20230126002049.php
@@ -42,7 +42,7 @@ final class Version20230126002049 extends AbstractMigration

        $users = $schema->getTable('kimai2_users');
        if (!$users->hasColumn('totp_secret')) {
-            $users->addColumn('totp_secret', 'string', ['notnull' => false, 'default' => null]);
+            $users->addColumn('totp_secret', 'string', ['length' => 255, 'notnull' => false, 'default' => null]);
            $users->addColumn('totp_enabled', 'boolean', ['notnull' => true, 'default' => false]);
        }
        if (!$users->hasColumn('system_account')) {
--- a/src/Configuration/LocaleService.php
+++ b/src/Configuration/LocaleService.php
@@ -51,7 +51,7 @@ final class LocaleService

    public function isKnownLocale(string $language): bool
    {
-        return \in_array($language, $this->getAllLocales());
+        return \in_array($language, $this->getAllLocales(), true);
    }

    /**
--- a/src/Constants.php
+++ b/src/Constants.php
@@ -17,11 +17,11 @@ class Constants
    /**
     * The current release version
     */
-    public const VERSION = '2.11.0';
+    public const VERSION = '2.12.0';
    /**
     * The current release: major * 10000 + minor * 100 + patch
     */
-    public const VERSION_ID = 21100;
+    public const VERSION_ID = 21200;
    /**
     * The software name
     */
--- a/src/Controller/Auth/SamlController.php
+++ b/src/Controller/Auth/SamlController.php
@@ -15,12 +15,16 @@ use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Annotation\Route;
+use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
 use Symfony\Component\Security\Http\SecurityRequestAttributes;

 #[Route(path: '/saml')]
 final class SamlController extends AbstractController
 {
-    public function __construct(private SamlAuthFactory $authFactory, private SamlConfigurationInterface $samlConfiguration)
+    public function __construct(
+        private readonly SamlAuthFactory $authFactory,
+        private readonly SamlConfigurationInterface $samlConfiguration
+    )
    {
    }

@@ -51,7 +55,12 @@ final class SamlController extends AbstractController
        }

        // this does set headers and exit as $stay is not set to true
-        $url = $this->authFactory->create()->login($session->get('_security.main.target_path'));
+        $redirectTarget = $session->get('_security.main.target_path');
+        if ($redirectTarget === null || $redirectTarget === '') {
+            $redirectTarget = $this->generateUrl('homepage', [], UrlGeneratorInterface::ABSOLUTE_URL);
+        }
+
+        $url = $this->authFactory->create()->login($redirectTarget);

        if ($url === null) {
            throw new \RuntimeException('SAML login failed');
--- a/src/Entity/User.php
+++ b/src/Entity/User.php
@@ -209,8 +209,9 @@ class User implements UserInterface, EquatableInterface, ThemeUserInterface, Pas
    private array $roles = [];
    /**
     * If not empty two-factor authentication is enabled.
+     * TODO reduce the length, which was initially forgotten and set to 255, as this is the default for MySQL with Doctrine (see migration Version20230126002049)
     */
-    #[ORM\Column(name: 'totp_secret', type: 'string', nullable: true)]
+    #[ORM\Column(name: 'totp_secret', type: 'string', length: 255, nullable: true)]
    private ?string $totpSecret = null;
    #[ORM\Column(name: 'totp_enabled', type: 'boolean', nullable: false, options: ['default' => false])]
    private bool $totpEnabled = false;
@@ -1287,9 +1288,11 @@ class User implements UserInterface, EquatableInterface, ThemeUserInterface, Pas
        return $group === null ? $group : (string) $group;
    }

-    public function getHolidaysPerYear(): int
+    public function getHolidaysPerYear(): float
    {
-        return (int) $this->getPreferenceValue(UserPreference::HOLIDAYS_PER_YEAR, 0);
+        $holidays = $this->getPreferenceValue(UserPreference::HOLIDAYS_PER_YEAR, 0.0);
+
+        return $this->getFormattedHoliday(is_numeric($holidays) ? $holidays : 0.0);
    }

    public function setWorkHoursMonday(int $seconds): void
@@ -1332,14 +1335,28 @@ class User implements UserInterface, EquatableInterface, ThemeUserInterface, Pas
        $this->setPreferenceValue(UserPreference::PUBLIC_HOLIDAY_GROUP, $group);
    }

-    public function setHolidaysPerYear(?int $holidays): void
+    public function setHolidaysPerYear(?float $holidays): void
    {
-        $this->setPreferenceValue(UserPreference::HOLIDAYS_PER_YEAR, $holidays ?? 0);
+        if ($holidays !== null) {
+            // makes sure that the number is a multiple of 0.5
+            $holidays = $this->getFormattedHoliday($holidays);
+        }
+
+        $this->setPreferenceValue(UserPreference::HOLIDAYS_PER_YEAR, $holidays ?? 0.0);
+    }
+
+    private function getFormattedHoliday(int|float|string|null $holidays): float
+    {
+        if (!is_numeric($holidays)) {
+            $holidays = 0.0;
+        }
+
+        return (float) number_format((round($holidays * 2) / 2), 1);
    }

    public function hasContractSettings(): bool
    {
-        return $this->hasWorkHourConfiguration() || $this->getHolidaysPerYear() !== 0;
+        return $this->hasWorkHourConfiguration() || $this->getHolidaysPerYear() !== 0.0;
    }

    public function hasWorkHourConfiguration(): bool
--- a/templates/reporting/report_by_user_data.html.twig
+++ b/templates/reporting/report_by_user_data.html.twig
@@ -72,7 +72,7 @@
                {% for column in project.data.data %}
                    {% set dateKey = column.date|report_date %}
                    <td class="text-nowrap text-center day-total {% block column_classes_project %}{% endblock %}">
-                        {% if column.duration > 0 or column.rate > 0 or column.internalRate > 0 %}
+                        {% if column.duration != 0 or column.rate != 0 or column.internalRate != 0 %}
                            {% if dataType == 'rate' %}
                                {% set totalsRate = totalsRate|merge({(dateKey): (totalsRate[dateKey] + column.rate)}) %}
                                <strong>{{ column.rate|money(currency) }}</strong>
@@ -103,7 +103,7 @@
                    </td>
                    {% for column in activity.data.data %}
                        <td class="text-nowrap text-center day-total {% block column_classes_activity %}{% endblock %}">
-                            {% if column.duration > 0 or column.rate > 0 or column.internalRate > 0 %}
+                            {% if column.duration != 0 or column.rate != 0 or column.internalRate != 0 %}
                                {% if dataType == 'rate' %}
                                    {{ column.rate|money(currency) }}
                                {% elseif dataType == 'internalRate' %}
--- a/tests/API/ActionsControllerTest.php
+++ b/tests/API/ActionsControllerTest.php
@@ -20,12 +20,12 @@ use App\Tests\DataFixtures\TimesheetFixtures;
 */
 class ActionsControllerTest extends APIControllerBaseTest
 {
-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured('/api/actions/timesheet/1/index/en');
    }

-    public function test_getTimesheetActions()
+    public function test_getTimesheetActions(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);

@@ -71,7 +71,7 @@ class ActionsControllerTest extends APIControllerBaseTest
        }
    }

-    public function test_getActivityActions()
+    public function test_getActivityActions(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);

@@ -121,7 +121,7 @@ class ActionsControllerTest extends APIControllerBaseTest
        }
    }

-    public function test_getProjectActions()
+    public function test_getProjectActions(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);

@@ -170,7 +170,7 @@ class ActionsControllerTest extends APIControllerBaseTest
        }
    }

-    public function test_getCustomerActions()
+    public function test_getCustomerActions(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);

--- a/tests/API/ActivityControllerTest.php
+++ b/tests/API/ActivityControllerTest.php
@@ -86,7 +86,7 @@ class ActivityControllerTest extends APIControllerBaseTest
        return [$rate1, $rate2];
    }

-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured('/api/activities');
    }
@@ -201,7 +201,7 @@ class ActivityControllerTest extends APIControllerBaseTest
        yield ['/api/activities', 1, ['projects' => ['2'], 'visible' => VisibilityInterface::SHOW_HIDDEN], [[true, 2], [false]]];
    }

-    public function testGetCollectionWithQuery()
+    public function testGetCollectionWithQuery(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $imports = $this->loadActivityTestData();
@@ -219,7 +219,7 @@ class ActivityControllerTest extends APIControllerBaseTest
        $this->assertEquals($imports[1]->getId(), $result[2]['project']);
    }

-    public function testGetEntity()
+    public function testGetEntity(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $this->assertAccessIsGranted($client, '/api/activities/1');
@@ -229,12 +229,12 @@ class ActivityControllerTest extends APIControllerBaseTest
        self::assertApiResponseTypeStructure('ActivityEntity', $result);
    }

-    public function testNotFound()
+    public function testNotFound(): void
    {
        $this->assertEntityNotFound(User::ROLE_USER, '/api/activities/' . PHP_INT_MAX, 'GET', 'App\\Entity\\Activity object not found by the @ParamConverter annotation.');
    }

-    public function testPostAction()
+    public function testPostAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -253,7 +253,7 @@ class ActivityControllerTest extends APIControllerBaseTest
        $this->assertNotEmpty($result['id']);
    }

-    public function testPostActionWithLeastFields()
+    public function testPostActionWithLeastFields(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -268,7 +268,7 @@ class ActivityControllerTest extends APIControllerBaseTest
        $this->assertNotEmpty($result['id']);
    }

-    public function testPostActionWithInvalidUser()
+    public function testPostActionWithInvalidUser(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $data = [
@@ -281,7 +281,7 @@ class ActivityControllerTest extends APIControllerBaseTest
        $this->assertApiResponseAccessDenied($response, 'User cannot create activities');
    }

-    public function testPostActionWithInvalidData()
+    public function testPostActionWithInvalidData(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -295,7 +295,7 @@ class ActivityControllerTest extends APIControllerBaseTest
        $this->assertApiCallValidationError($response, ['project'], true);
    }

-    public function testPatchAction()
+    public function testPatchAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -314,7 +314,7 @@ class ActivityControllerTest extends APIControllerBaseTest
        $this->assertNotEmpty($result['id']);
    }

-    public function testPatchActionWithNonGlobalActivity()
+    public function testPatchActionWithNonGlobalActivity(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $imports = $this->loadActivityTestData();
@@ -337,7 +337,7 @@ class ActivityControllerTest extends APIControllerBaseTest
        $this->assertEquals($imports[1]->getId(), $result['project']);
    }

-    public function testPatchActionWithInvalidUser()
+    public function testPatchActionWithInvalidUser(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);

@@ -352,12 +352,12 @@ class ActivityControllerTest extends APIControllerBaseTest
        $this->assertApiResponseAccessDenied($response, 'User cannot update activity');
    }

-    public function testPatchActionWithUnknownActivity()
+    public function testPatchActionWithUnknownActivity(): void
    {
        $this->assertEntityNotFoundForPatch(User::ROLE_USER, '/api/activities/255', []);
    }

-    public function testInvalidPatchAction()
+    public function testInvalidPatchAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -371,12 +371,12 @@ class ActivityControllerTest extends APIControllerBaseTest
        $this->assertApiCallValidationError($response, ['name']);
    }

-    public function testMetaActionThrowsNotFound()
+    public function testMetaActionThrowsNotFound(): void
    {
        $this->assertEntityNotFoundForPatch(User::ROLE_ADMIN, '/api/activities/42/meta', []);
    }

-    public function testMetaActionThrowsExceptionOnMissingName()
+    public function testMetaActionThrowsExceptionOnMissingName(): void
    {
        $this->assertExceptionForPatchAction(User::ROLE_ADMIN, '/api/activities/1/meta', ['value' => 'X'], [
            'code' => 400,
@@ -384,7 +384,7 @@ class ActivityControllerTest extends APIControllerBaseTest
        ]);
    }

-    public function testMetaActionThrowsExceptionOnMissingValue()
+    public function testMetaActionThrowsExceptionOnMissingValue(): void
    {
        $this->assertExceptionForPatchAction(User::ROLE_ADMIN, '/api/activities/1/meta', ['name' => 'X'], [
            'code' => 400,
@@ -392,7 +392,7 @@ class ActivityControllerTest extends APIControllerBaseTest
        ]);
    }

-    public function testMetaActionThrowsExceptionOnMissingMetafield()
+    public function testMetaActionThrowsExceptionOnMissingMetafield(): void
    {
        $this->assertExceptionForPatchAction(User::ROLE_ADMIN, '/api/activities/1/meta', ['name' => 'X', 'value' => 'Y'], [
            'code' => 404,
@@ -400,7 +400,7 @@ class ActivityControllerTest extends APIControllerBaseTest
        ]);
    }

-    public function testMetaAction()
+    public function testMetaAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        static::getContainer()->get('event_dispatcher')->addSubscriber(new ActivityTestMetaFieldSubscriberMock());
--- a/tests/API/Authentication/SessionAuthenticatorTest.php
+++ b/tests/API/Authentication/SessionAuthenticatorTest.php
@@ -41,7 +41,7 @@ class SessionAuthenticatorTest extends TestCase
        return new SessionAuthenticator($token);
    }

-    public function testSupports()
+    public function testSupports(): void
    {
        $sut = $this->getSut();

@@ -65,7 +65,7 @@ class SessionAuthenticatorTest extends TestCase
        self::assertFalse($sut->supports($request));
    }

-    public function testAuthenticateWithMissingAuthHeader()
+    public function testAuthenticateWithMissingAuthHeader(): void
    {
        $this->expectException(CustomUserMessageAuthenticationException::class);
        $this->expectExceptionMessage('Authentication required, missing user header: X-AUTH-USER');
@@ -76,7 +76,7 @@ class SessionAuthenticatorTest extends TestCase
        $sut->authenticate($request);
    }

-    public function testAuthenticateWithMissingToken()
+    public function testAuthenticateWithMissingToken(): void
    {
        $this->expectException(CustomUserMessageAuthenticationException::class);
        $this->expectExceptionMessage('Authentication required, missing token header: X-AUTH-TOKEN');
@@ -87,7 +87,7 @@ class SessionAuthenticatorTest extends TestCase
        $sut->authenticate($request);
    }

-    public function testAuthenticateWithEmptyToken()
+    public function testAuthenticateWithEmptyToken(): void
    {
        $this->expectException(CustomUserMessageAuthenticationException::class);
        $this->expectExceptionMessage('Authentication required, missing token header: X-AUTH-TOKEN');
@@ -98,7 +98,7 @@ class SessionAuthenticatorTest extends TestCase
        $sut->authenticate($request);
    }

-    public function testAuthenticateWithMissingUser()
+    public function testAuthenticateWithMissingUser(): void
    {
        $this->expectException(CustomUserMessageAuthenticationException::class);
        $this->expectExceptionMessage('Authentication required, missing user header: X-AUTH-USER');
@@ -109,7 +109,7 @@ class SessionAuthenticatorTest extends TestCase
        $sut->authenticate($request);
    }

-    public function testAuthenticateWithEmptyUser()
+    public function testAuthenticateWithEmptyUser(): void
    {
        $this->expectException(CustomUserMessageAuthenticationException::class);
        $this->expectExceptionMessage('Authentication required, missing user header: X-AUTH-USER');
@@ -120,7 +120,7 @@ class SessionAuthenticatorTest extends TestCase
        $sut->authenticate($request);
    }

-    public function testAuthenticate()
+    public function testAuthenticate(): void
    {
        $sut = $this->getSut();

@@ -141,7 +141,7 @@ class SessionAuthenticatorTest extends TestCase
        self::assertTrue($badge->isResolved());
    }

-    public function testAuthenticateFailsOnMissingApiTokenForUser()
+    public function testAuthenticateFailsOnMissingApiTokenForUser(): void
    {
        $this->expectException(BadCredentialsException::class);
        $this->expectExceptionMessage('The user has no activated API account.');
@@ -158,7 +158,7 @@ class SessionAuthenticatorTest extends TestCase
        $badge->executeCustomChecker($user);
    }

-    public function testAuthenticateFailsOnWrongPassword()
+    public function testAuthenticateFailsOnWrongPassword(): void
    {
        $this->expectException(BadCredentialsException::class);
        $this->expectExceptionMessage('The presented password is invalid.');
--- a/tests/API/Authentication/TokenAuthenticatorTest.php
+++ b/tests/API/Authentication/TokenAuthenticatorTest.php
@@ -38,7 +38,7 @@ class TokenAuthenticatorTest extends TestCase
        return new TokenAuthenticator($userProvider, $passwordHasherFactory);
    }

-    public function testSupports()
+    public function testSupports(): void
    {
        $sut = $this->getSut();

@@ -62,7 +62,7 @@ class TokenAuthenticatorTest extends TestCase
        self::assertTrue($sut->supports($request));
    }

-    public function testAuthenticateWithMissingAuthHeader()
+    public function testAuthenticateWithMissingAuthHeader(): void
    {
        $this->expectException(CustomUserMessageAuthenticationException::class);
        $this->expectExceptionMessage('Authentication required, missing user header: X-AUTH-USER');
@@ -73,7 +73,7 @@ class TokenAuthenticatorTest extends TestCase
        $sut->authenticate($request);
    }

-    public function testAuthenticateWithMissingToken()
+    public function testAuthenticateWithMissingToken(): void
    {
        $this->expectException(CustomUserMessageAuthenticationException::class);
        $this->expectExceptionMessage('Authentication required, missing token header: X-AUTH-TOKEN');
@@ -84,7 +84,7 @@ class TokenAuthenticatorTest extends TestCase
        $sut->authenticate($request);
    }

-    public function testAuthenticateWithEmptyToken()
+    public function testAuthenticateWithEmptyToken(): void
    {
        $this->expectException(CustomUserMessageAuthenticationException::class);
        $this->expectExceptionMessage('Authentication required, missing token header: X-AUTH-TOKEN');
@@ -95,7 +95,7 @@ class TokenAuthenticatorTest extends TestCase
        $sut->authenticate($request);
    }

-    public function testAuthenticateWithMissingUser()
+    public function testAuthenticateWithMissingUser(): void
    {
        $this->expectException(CustomUserMessageAuthenticationException::class);
        $this->expectExceptionMessage('Authentication required, missing user header: X-AUTH-USER');
@@ -106,7 +106,7 @@ class TokenAuthenticatorTest extends TestCase
        $sut->authenticate($request);
    }

-    public function testAuthenticateWithEmptyUser()
+    public function testAuthenticateWithEmptyUser(): void
    {
        $this->expectException(CustomUserMessageAuthenticationException::class);
        $this->expectExceptionMessage('Authentication required, missing user header: X-AUTH-USER');
@@ -117,7 +117,7 @@ class TokenAuthenticatorTest extends TestCase
        $sut->authenticate($request);
    }

-    public function testAuthenticate()
+    public function testAuthenticate(): void
    {
        $sut = $this->getSut();

@@ -138,7 +138,7 @@ class TokenAuthenticatorTest extends TestCase
        self::assertTrue($badge->isResolved());
    }

-    public function testAuthenticateFailsOnMissingApiTokenForUser()
+    public function testAuthenticateFailsOnMissingApiTokenForUser(): void
    {
        $this->expectException(BadCredentialsException::class);
        $this->expectExceptionMessage('The user has no activated API account.');
@@ -155,7 +155,7 @@ class TokenAuthenticatorTest extends TestCase
        $badge->executeCustomChecker($user);
    }

-    public function testAuthenticateFailsOnWrongPassword()
+    public function testAuthenticateFailsOnWrongPassword(): void
    {
        $this->expectException(BadCredentialsException::class);
        $this->expectExceptionMessage('The presented password is invalid.');
--- a/tests/API/ConfigurationControllerTest.php
+++ b/tests/API/ConfigurationControllerTest.php
@@ -16,12 +16,12 @@ use App\Entity\User;
 */
 class ConfigurationControllerTest extends APIControllerBaseTest
 {
-    public function testIsTimesheetSecure()
+    public function testIsTimesheetSecure(): void
    {
        $this->assertUrlIsSecured('/api/config/timesheet');
    }

-    public function testGetTimesheet()
+    public function testGetTimesheet(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $this->assertAccessIsGranted($client, '/api/config/timesheet', 'GET');
--- a/tests/API/CustomerControllerTest.php
+++ b/tests/API/CustomerControllerTest.php
@@ -87,12 +87,12 @@ class CustomerControllerTest extends APIControllerBaseTest
        return [$rate1, $rate2];
    }

-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured('/api/customers');
    }

-    public function testGetCollection()
+    public function testGetCollection(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $this->assertAccessIsGranted($client, '/api/customers');
@@ -104,7 +104,7 @@ class CustomerControllerTest extends APIControllerBaseTest
        self::assertApiResponseTypeStructure('CustomerCollection', $result[0]);
    }

-    public function testGetCollectionWithQuery()
+    public function testGetCollectionWithQuery(): void
    {
        $query = ['order' => 'ASC', 'orderBy' => 'name', 'visible' => 3, 'term' => 'test'];
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
@@ -117,7 +117,7 @@ class CustomerControllerTest extends APIControllerBaseTest
        self::assertApiResponseTypeStructure('CustomerCollection', $result[0]);
    }

-    public function testGetEntity()
+    public function testGetEntity(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $this->assertAccessIsGranted($client, '/api/customers/1');
@@ -127,7 +127,7 @@ class CustomerControllerTest extends APIControllerBaseTest
        self::assertApiResponseTypeStructure('CustomerEntity', $result);
    }

-    public function testGetEntityWithFullResponse()
+    public function testGetEntityWithFullResponse(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);

@@ -171,12 +171,12 @@ class CustomerControllerTest extends APIControllerBaseTest
        self::assertApiResponseTypeStructure('CustomerEntity', $result);
    }

-    public function testNotFound()
+    public function testNotFound(): void
    {
        $this->assertEntityNotFound(User::ROLE_USER, '/api/customers/' . PHP_INT_MAX, 'GET', 'App\\Entity\\Customer object not found by the @ParamConverter annotation.');
    }

-    public function testPostAction()
+    public function testPostAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -197,7 +197,7 @@ class CustomerControllerTest extends APIControllerBaseTest
        $this->assertNotEmpty($result['id']);
    }

-    public function testPostActionWithLeastFields()
+    public function testPostActionWithLeastFields(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -215,7 +215,7 @@ class CustomerControllerTest extends APIControllerBaseTest
        $this->assertNotEmpty($result['id']);
    }

-    public function testPostActionWithInvalidUser()
+    public function testPostActionWithInvalidUser(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $data = [
@@ -230,7 +230,7 @@ class CustomerControllerTest extends APIControllerBaseTest
        $this->assertApiResponseAccessDenied($response, 'User cannot create customers');
    }

-    public function testPostActionWithInvalidData()
+    public function testPostActionWithInvalidData(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -246,7 +246,7 @@ class CustomerControllerTest extends APIControllerBaseTest
        $this->assertApiCallValidationError($response, ['country', 'currency', 'timezone'], true);
    }

-    public function testPatchAction()
+    public function testPatchAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -268,7 +268,7 @@ class CustomerControllerTest extends APIControllerBaseTest
        $this->assertNotEmpty($result['id']);
    }

-    public function testPatchActionWithInvalidUser()
+    public function testPatchActionWithInvalidUser(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);

@@ -285,12 +285,12 @@ class CustomerControllerTest extends APIControllerBaseTest
        $this->assertApiResponseAccessDenied($response, 'User cannot update customer');
    }

-    public function testPatchActionWithUnknownActivity()
+    public function testPatchActionWithUnknownActivity(): void
    {
        $this->assertEntityNotFoundForPatch(User::ROLE_USER, '/api/customers/255', []);
    }

-    public function testInvalidPatchAction()
+    public function testInvalidPatchAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -307,19 +307,19 @@ class CustomerControllerTest extends APIControllerBaseTest
        $this->assertApiCallValidationError($response, ['currency']);
    }

-    public function testMetaActionNotAllowed()
+    public function testMetaActionNotAllowed(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $this->request($client, '/api/customers/1/meta', 'PATCH', [], json_encode(['name' => 'asdasd']));
        $this->assertApiResponseAccessDenied($client->getResponse(), 'You are not allowed to update this customer');
    }

-    public function testMetaActionThrowsNotFound()
+    public function testMetaActionThrowsNotFound(): void
    {
        $this->assertEntityNotFoundForPatch(User::ROLE_ADMIN, '/api/customers/42/meta', []);
    }

-    public function testMetaActionThrowsExceptionOnMissingName()
+    public function testMetaActionThrowsExceptionOnMissingName(): void
    {
        $this->assertExceptionForPatchAction(User::ROLE_ADMIN, '/api/customers/1/meta', ['value' => 'X'], [
            'code' => 400,
@@ -327,7 +327,7 @@ class CustomerControllerTest extends APIControllerBaseTest
        ]);
    }

-    public function testMetaActionThrowsExceptionOnMissingValue()
+    public function testMetaActionThrowsExceptionOnMissingValue(): void
    {
        $this->assertExceptionForPatchAction(User::ROLE_ADMIN, '/api/customers/1/meta', ['name' => 'X'], [
            'code' => 400,
@@ -335,7 +335,7 @@ class CustomerControllerTest extends APIControllerBaseTest
        ]);
    }

-    public function testMetaActionThrowsExceptionOnMissingMetafield()
+    public function testMetaActionThrowsExceptionOnMissingMetafield(): void
    {
        $this->assertExceptionForPatchAction(User::ROLE_ADMIN, '/api/customers/1/meta', ['name' => 'X', 'value' => 'Y'], [
            'code' => 404,
@@ -343,7 +343,7 @@ class CustomerControllerTest extends APIControllerBaseTest
        ]);
    }

-    public function testMetaAction()
+    public function testMetaAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        self::getContainer()->get('event_dispatcher')->addSubscriber(new CustomerTestMetaFieldSubscriberMock());
--- a/tests/API/Model/TimesheetConfigTest.php
+++ b/tests/API/Model/TimesheetConfigTest.php
@@ -17,7 +17,7 @@ use PHPUnit\Framework\TestCase;
 */
 class TimesheetConfigTest extends TestCase
 {
-    public function testSetter()
+    public function testSetter(): void
    {
        $sut = new TimesheetConfig();
        $sut->setIsAllowFutureTimes(false);
--- a/tests/API/NotFoundExceptionTest.php
+++ b/tests/API/NotFoundExceptionTest.php
@@ -17,7 +17,7 @@ use PHPUnit\Framework\TestCase;
 */
 class NotFoundExceptionTest extends TestCase
 {
-    public function testConstructor()
+    public function testConstructor(): void
    {
        $sut = new NotFoundException();
        self::assertEquals('Not found', $sut->getMessage());
--- a/tests/API/ProjectControllerTest.php
+++ b/tests/API/ProjectControllerTest.php
@@ -88,12 +88,12 @@ class ProjectControllerTest extends APIControllerBaseTest
        return [$rate1, $rate2];
    }

-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured('/api/projects');
    }

-    public function testGetCollection()
+    public function testGetCollection(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $this->assertAccessIsGranted($client, '/api/projects');
@@ -242,7 +242,7 @@ class ProjectControllerTest extends APIControllerBaseTest
        yield ['/api/projects', 1, ['customers' => ['2', '2'], 'visible' => VisibilityInterface::SHOW_HIDDEN, 'start' => '2010-12-11', 'end' => '2030-12-11'], []];
    }

-    public function testGetEntity()
+    public function testGetEntity(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $em = $this->getEntityManager();
@@ -297,12 +297,12 @@ class ProjectControllerTest extends APIControllerBaseTest
        }
    }

-    public function testNotFound()
+    public function testNotFound(): void
    {
        $this->assertEntityNotFound(User::ROLE_USER, '/api/projects/' . PHP_INT_MAX, 'GET', 'App\\Entity\\Project object not found by the @ParamConverter annotation.');
    }

-    public function testPostAction()
+    public function testPostAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -331,7 +331,7 @@ class ProjectControllerTest extends APIControllerBaseTest
        self::assertFalse($result['visible']);
    }

-    public function testPostActionWithOtherFields()
+    public function testPostActionWithOtherFields(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -354,7 +354,7 @@ class ProjectControllerTest extends APIControllerBaseTest
        self::assertTrue($result['visible']);
    }

-    public function testPostActionWithOtherFieldsAndFalse()
+    public function testPostActionWithOtherFieldsAndFalse(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -377,7 +377,7 @@ class ProjectControllerTest extends APIControllerBaseTest
        self::assertFalse($result['visible']);
    }

-    public function testPostActionWithOtherFields3()
+    public function testPostActionWithOtherFields3(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -400,7 +400,7 @@ class ProjectControllerTest extends APIControllerBaseTest
        self::assertTrue($result['visible']);
    }

-    public function testPostActionWithLeastFields()
+    public function testPostActionWithLeastFields(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -420,7 +420,7 @@ class ProjectControllerTest extends APIControllerBaseTest
        self::assertFalse($result['visible']);
    }

-    public function testPostActionWithInvalidUser()
+    public function testPostActionWithInvalidUser(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $data = [
@@ -433,7 +433,7 @@ class ProjectControllerTest extends APIControllerBaseTest
        $this->assertApiResponseAccessDenied($response, 'User cannot create projects');
    }

-    public function testPostActionWithInvalidData()
+    public function testPostActionWithInvalidData(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -447,7 +447,7 @@ class ProjectControllerTest extends APIControllerBaseTest
        $this->assertApiCallValidationError($response, ['customer'], true);
    }

-    public function testPatchAction()
+    public function testPatchAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -467,7 +467,7 @@ class ProjectControllerTest extends APIControllerBaseTest
        $this->assertNotEmpty($result['id']);
    }

-    public function testPatchActionWithInvalidUser()
+    public function testPatchActionWithInvalidUser(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);

@@ -482,12 +482,12 @@ class ProjectControllerTest extends APIControllerBaseTest
        $this->assertApiResponseAccessDenied($response, 'User cannot update project');
    }

-    public function testPatchActionWithUnknownActivity()
+    public function testPatchActionWithUnknownActivity(): void
    {
        $this->assertEntityNotFoundForPatch(User::ROLE_USER, '/api/projects/255', []);
    }

-    public function testInvalidPatchAction()
+    public function testInvalidPatchAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -502,12 +502,12 @@ class ProjectControllerTest extends APIControllerBaseTest
        $this->assertApiCallValidationError($response, ['customer']);
    }

-    public function testMetaActionThrowsNotFound()
+    public function testMetaActionThrowsNotFound(): void
    {
        $this->assertEntityNotFoundForPatch(User::ROLE_ADMIN, '/api/projects/42/meta', []);
    }

-    public function testMetaActionThrowsExceptionOnMissingName()
+    public function testMetaActionThrowsExceptionOnMissingName(): void
    {
        $this->assertExceptionForPatchAction(User::ROLE_ADMIN, '/api/projects/1/meta', ['value' => 'X'], [
            'code' => 400,
@@ -515,7 +515,7 @@ class ProjectControllerTest extends APIControllerBaseTest
        ]);
    }

-    public function testMetaActionThrowsExceptionOnMissingValue()
+    public function testMetaActionThrowsExceptionOnMissingValue(): void
    {
        $this->assertExceptionForPatchAction(User::ROLE_ADMIN, '/api/projects/1/meta', ['name' => 'X'], [
            'code' => 400,
@@ -523,7 +523,7 @@ class ProjectControllerTest extends APIControllerBaseTest
        ]);
    }

-    public function testMetaActionThrowsExceptionOnMissingMetafield()
+    public function testMetaActionThrowsExceptionOnMissingMetafield(): void
    {
        $this->assertExceptionForPatchAction(User::ROLE_ADMIN, '/api/projects/1/meta', ['name' => 'X', 'value' => 'Y'], [
            'code' => 404,
@@ -531,7 +531,7 @@ class ProjectControllerTest extends APIControllerBaseTest
        ]);
    }

-    public function testMetaAction()
+    public function testMetaAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        self::getContainer()->get('event_dispatcher')->addSubscriber(new ProjectTestMetaFieldSubscriberMock());
--- a/tests/API/RateControllerTestTrait.php
+++ b/tests/API/RateControllerTestTrait.php
@@ -35,7 +35,7 @@ trait RateControllerTestTrait
     */
    abstract protected function importTestRates($id): array;

-    public function testAddRateMissingEntityAction()
+    public function testAddRateMissingEntityAction(): void
    {
        $data = [
            'user' => 1,
@@ -47,7 +47,7 @@ trait RateControllerTestTrait
        $this->assertEntityNotFoundForPost($client, $this->getRateUrl(99), $data);
    }

-    public function testAddRateMissingUserAction()
+    public function testAddRateMissingUserAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -63,7 +63,7 @@ trait RateControllerTestTrait
        $this->assertApiCallValidationError($response, ['user']);
    }

-    public function testAddRateActionWithInvalidUser()
+    public function testAddRateActionWithInvalidUser(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $data = [
@@ -77,7 +77,7 @@ trait RateControllerTestTrait
        $this->assertApiResponseAccessDenied($response, 'Access denied.');
    }

-    public function testAddRateAction()
+    public function testAddRateAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -98,7 +98,7 @@ trait RateControllerTestTrait
        $this->assertFalse($result['isFixed']);
    }

-    public function testAddFixedRateAction()
+    public function testAddFixedRateAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $data = [
@@ -119,7 +119,7 @@ trait RateControllerTestTrait
        $this->assertTrue($result['isFixed']);
    }

-    public function testGetRatesEmptyResult()
+    public function testGetRatesEmptyResult(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->request($client, $this->getRateUrl(1));
@@ -130,7 +130,7 @@ trait RateControllerTestTrait
        $this->assertEmpty($result);
    }

-    public function testGetRates()
+    public function testGetRates(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $expectedRates = $this->importTestRates(1);
@@ -148,17 +148,17 @@ trait RateControllerTestTrait
        }
    }

-    public function testGetRatesEntityNotFound()
+    public function testGetRatesEntityNotFound(): void
    {
        $this->assertEntityNotFound(User::ROLE_ADMIN, $this->getRateUrl(99));
    }

-    public function testGetRatesIsSecured()
+    public function testGetRatesIsSecured(): void
    {
        $this->assertUrlIsSecuredForRole(User::ROLE_USER, $this->getRateUrl(1));
    }

-    public function testDeleteRate()
+    public function testDeleteRate(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $expectedRates = $this->importTestRates(1);
@@ -176,19 +176,19 @@ trait RateControllerTestTrait
        $this->assertEquals(\count($expectedRates) - 1, \count($result));
    }

-    public function testDeleteRateEntityNotFound()
+    public function testDeleteRateEntityNotFound(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertNotFoundForDelete($client, $this->getRateUrl(99, 1));
    }

-    public function testDeleteRateRateNotFound()
+    public function testDeleteRateRateNotFound(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertNotFoundForDelete($client, $this->getRateUrl(1, 99));
    }

-    public function testDeleteRateWithInvalidAssignment()
+    public function testDeleteRateWithInvalidAssignment(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->importTestRates(1);
@@ -197,7 +197,7 @@ trait RateControllerTestTrait
        $this->assertNotFoundForDelete($client, $this->getRateUrl(2, 1));
    }

-    public function testDeleteNotAllowed()
+    public function testDeleteNotAllowed(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $rates = $this->importTestRates(1);
@@ -209,7 +209,7 @@ trait RateControllerTestTrait
        $this->assertApiResponseAccessDenied($client->getResponse(), 'Access denied.');
    }

-    protected function assertRateStructure(array $result, $user = null)
+    public function assertRateStructure(array $result, $user = null): void
    {
        $expectedKeys = [
            'id', 'rate', 'internalRate', 'isFixed', 'user'
--- a/tests/API/Serializer/ValidationFailedExceptionErrorHandlerTest.php
+++ b/tests/API/Serializer/ValidationFailedExceptionErrorHandlerTest.php
@@ -27,7 +27,7 @@ use Symfony\Contracts\Translation\TranslatorInterface;
 */
 class ValidationFailedExceptionErrorHandlerTest extends TestCase
 {
-    public function testSubscribingMethods()
+    public function testSubscribingMethods(): void
    {
        self::assertEquals([[
            'direction' => GraphNavigatorInterface::DIRECTION_SERIALIZATION,
@@ -44,7 +44,7 @@ class ValidationFailedExceptionErrorHandlerTest extends TestCase
        ]], ValidationFailedExceptionErrorHandler::getSubscribingMethods());
    }

-    public function testWithEmptyConstraintsList()
+    public function testWithEmptyConstraintsList(): void
    {
        $security = $this->createMock(Security::class);
        $translator = $this->createMock(TranslatorInterface::class);
@@ -64,7 +64,7 @@ class ValidationFailedExceptionErrorHandlerTest extends TestCase
        self::assertEquals($expected, $sut->serializeValidationExceptionToJson(new JsonSerializationVisitor(), $validations, [], new SerializationContext()));
    }

-    public function testWithUnsupportedException()
+    public function testWithUnsupportedException(): void
    {
        $security = $this->createMock(Security::class);
        $translator = $this->createMock(TranslatorInterface::class);
@@ -81,7 +81,7 @@ class ValidationFailedExceptionErrorHandlerTest extends TestCase
        self::assertEquals('foooo', $actual);
    }

-    public function testWithConstraintsList()
+    public function testWithConstraintsList(): void
    {
        $security = $this->createMock(Security::class);
        $translator = $this->createMock(TranslatorInterface::class);
@@ -125,7 +125,7 @@ class ValidationFailedExceptionErrorHandlerTest extends TestCase
        ));
    }

-    public function testWithConstraintsListAndWrongException()
+    public function testWithConstraintsListAndWrongException(): void
    {
        $security = $this->createMock(Security::class);
        $translator = $this->createMock(TranslatorInterface::class);
--- a/tests/Activity/ActivityServiceTest.php
+++ b/tests/Activity/ActivityServiceTest.php
@@ -54,7 +54,7 @@ class ActivityServiceTest extends TestCase
        return $service;
    }

-    public function testCannotSavePersistedProjectAsNew()
+    public function testCannotSavePersistedProjectAsNew(): void
    {
        $project = $this->createMock(Activity::class);
        $project->expects($this->once())->method('getId')->willReturn(1);
@@ -67,7 +67,7 @@ class ActivityServiceTest extends TestCase
        $sut->saveNewActivity($project);
    }

-    public function testsaveNewActivityHasValidationError()
+    public function testsaveNewActivityHasValidationError(): void
    {
        $constraints = new ConstraintViolationList();
        $constraints->add(new ConstraintViolation('toooo many tests', 'abc.def', [], '$root', 'begin', 4, null, null, null, '$cause'));
@@ -83,7 +83,7 @@ class ActivityServiceTest extends TestCase
        $sut->saveNewActivity(new Activity());
    }

-    public function testUpdateDispatchesEvents()
+    public function testUpdateDispatchesEvents(): void
    {
        $project = $this->createMock(Activity::class);
        $project->method('getId')->willReturn(1);
@@ -106,7 +106,7 @@ class ActivityServiceTest extends TestCase
        $sut->updateActivity($project);
    }

-    public function testcreateNewActivityDispatchesEvents()
+    public function testcreateNewActivityDispatchesEvents(): void
    {
        $dispatcher = $this->createMock(EventDispatcherInterface::class);
        $dispatcher->expects($this->exactly(2))->method('dispatch')->willReturnCallback(function ($event) {
@@ -129,7 +129,7 @@ class ActivityServiceTest extends TestCase
        self::assertSame($project, $activity->getProject());
    }

-    public function testsaveNewActivityDispatchesEvents()
+    public function testsaveNewActivityDispatchesEvents(): void
    {
        $dispatcher = $this->createMock(EventDispatcherInterface::class);
        $dispatcher->expects($this->exactly(2))->method('dispatch')->willReturnCallback(function ($event) {
@@ -150,7 +150,7 @@ class ActivityServiceTest extends TestCase
        $sut->saveNewActivity($activity);
    }

-    public function testcreateNewActivityWithoutCustomer()
+    public function testcreateNewActivityWithoutCustomer(): void
    {
        $sut = $this->getSut();

--- a/tests/Calendar/GoogleSourceTest.php
+++ b/tests/Calendar/GoogleSourceTest.php
@@ -17,7 +17,7 @@ use PHPUnit\Framework\TestCase;
 */
 class GoogleSourceTest extends TestCase
 {
-    public function testConstruct()
+    public function testConstruct(): void
    {
        $sut = new GoogleSource('0815', 'askdjfhlaksjdhflaksjhdflkjasdlkfjh', '#fffccc');

--- a/tests/Calendar/GoogleTest.php
+++ b/tests/Calendar/GoogleTest.php
@@ -18,7 +18,7 @@ use PHPUnit\Framework\TestCase;
 */
 class GoogleTest extends TestCase
 {
-    public function testConstruct()
+    public function testConstruct(): void
    {
        $sources = [
            new GoogleSource('foo', '', '#ccc'),
--- a/tests/Calendar/RecentActivitiesSourceTest.php
+++ b/tests/Calendar/RecentActivitiesSourceTest.php
@@ -19,7 +19,7 @@ use PHPUnit\Framework\TestCase;
 */
 class RecentActivitiesSourceTest extends TestCase
 {
-    public function testConstruct()
+    public function testConstruct(): void
    {
        $entries = [new TimesheetEntry(new Timesheet(), '#cccccc')];

--- a/tests/Calendar/TimesheetEntryTest.php
+++ b/tests/Calendar/TimesheetEntryTest.php
@@ -21,7 +21,7 @@ use PHPUnit\Framework\TestCase;
 */
 class TimesheetEntryTest extends TestCase
 {
-    public function testConstruct()
+    public function testConstruct(): void
    {
        $project = new Project();
        $activity = new Activity();
@@ -60,7 +60,7 @@ class TimesheetEntryTest extends TestCase
        $this->assertEquals($expectedData, $sut->getData());
    }

-    public function testEmpty()
+    public function testEmpty(): void
    {
        $timesheet = new Timesheet();

@@ -78,7 +78,7 @@ class TimesheetEntryTest extends TestCase
        $this->assertEquals($expectedData, $sut->getData());
    }

-    public function testGetTitle()
+    public function testGetTitle(): void
    {
        $project = new Project();
        $project->setName('sdfsdf');
--- a/tests/Command/ReloadCommandTest.php
+++ b/tests/Command/ReloadCommandTest.php
@@ -32,7 +32,7 @@ class ReloadCommandTest extends KernelTestCase
        ));
    }

-    public function testCommandName()
+    public function testCommandName(): void
    {
        $command = $this->application->find('kimai:reload');
        self::assertInstanceOf(ReloadCommand::class, $command);
--- a/tests/Command/ResetDevelopmentCommandTest.php
+++ b/tests/Command/ResetDevelopmentCommandTest.php
@@ -19,7 +19,7 @@ use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
 */
 class ResetDevelopmentCommandTest extends KernelTestCase
 {
-    public function testCommandName()
+    public function testCommandName(): void
    {
        $kernel = self::bootKernel();
        $application = new Application($kernel);
@@ -30,7 +30,7 @@ class ResetDevelopmentCommandTest extends KernelTestCase
        self::assertInstanceOf(ResetDevelopmentCommand::class, $command);
    }

-    public function testCommandNameIsNotEnabledInProd()
+    public function testCommandNameIsNotEnabledInProd(): void
    {
        $sut = new ResetDevelopmentCommand('prod');
        self::assertFalse($sut->isEnabled());
--- a/tests/Command/ResetTestCommandTest.php
+++ b/tests/Command/ResetTestCommandTest.php
@@ -20,7 +20,7 @@ use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
 */
 class ResetTestCommandTest extends KernelTestCase
 {
-    public function testCommandName()
+    public function testCommandName(): void
    {
        $kernel = self::bootKernel();
        $application = new Application($kernel);
@@ -31,7 +31,7 @@ class ResetTestCommandTest extends KernelTestCase
        self::assertInstanceOf(ResetTestCommand::class, $command);
    }

-    public function testCommandNameIsNotEnabledInProd()
+    public function testCommandNameIsNotEnabledInProd(): void
    {
        $sut = new ResetTestCommand($this->createMock(EntityManagerInterface::class), 'prod');
        self::assertFalse($sut->isEnabled());
--- a/tests/Command/TimesheetStopAllCommandTest.php
+++ b/tests/Command/TimesheetStopAllCommandTest.php
@@ -34,13 +34,13 @@ class TimesheetStopAllCommandTest extends KernelTestCase
        $this->application->add(new TimesheetStopAllCommand($service));
    }

-    public function testCommandName()
+    public function testCommandName(): void
    {
        $command = $this->application->find('kimai:timesheet:stop-all');
        self::assertInstanceOf(TimesheetStopAllCommand::class, $command);
    }

-    public function testRun()
+    public function testRun(): void
    {
        $command = $this->application->find('kimai:timesheet:stop-all');
        $commandTester = new CommandTester($command);
--- a/tests/Configuration/LdapConfigurationTest.php
+++ b/tests/Configuration/LdapConfigurationTest.php
@@ -42,7 +42,7 @@ class LdapConfigurationTest extends TestCase
        ];
    }

-    public function testDefault()
+    public function testDefault(): void
    {
        $sut = $this->getSut([]);
        $this->assertFalse($sut->isActivated());
@@ -51,7 +51,7 @@ class LdapConfigurationTest extends TestCase
        $this->assertEquals([], $sut->getConnectionParameters());
    }

-    public function testMapping()
+    public function testMapping(): void
    {
        $sut = $this->getSut($this->getDefaultSettings());
        $this->assertTrue($sut->isActivated());
--- a/tests/Configuration/MailConfigurationTest.php
+++ b/tests/Configuration/MailConfigurationTest.php
@@ -17,13 +17,13 @@ use PHPUnit\Framework\TestCase;
 */
 class MailConfigurationTest extends TestCase
 {
-    public function testGetFromAddress()
+    public function testGetFromAddress(): void
    {
        $sut = new MailConfiguration('foo-bar123@example.com');
        self::assertEquals('foo-bar123@example.com', $sut->getFromAddress());
    }

-    public function testGetFromAddressWithEmptyAddressReturnsNull()
+    public function testGetFromAddressWithEmptyAddressReturnsNull(): void
    {
        $sut = new MailConfiguration('');
        self::assertNull($sut->getFromAddress());
--- a/tests/Configuration/SamlConfigurationTest.php
+++ b/tests/Configuration/SamlConfigurationTest.php
@@ -50,7 +50,7 @@ class SamlConfigurationTest extends TestCase
        ];
    }

-    public function testDefault()
+    public function testDefault(): void
    {
        $sut = $this->getSut([]);
        $this->assertFalse($sut->isActivated());
@@ -62,7 +62,7 @@ class SamlConfigurationTest extends TestCase
        $this->assertFalse($sut->isRolesResetOnLogin());
    }

-    public function testDefaultSettings()
+    public function testDefaultSettings(): void
    {
        $sut = $this->getSut($this->getDefaultSettings());
        $this->assertTrue($sut->isActivated());
--- a/tests/ConsoleApplicationTest.php
+++ b/tests/ConsoleApplicationTest.php
@@ -19,7 +19,7 @@ use Symfony\Component\HttpKernel\KernelInterface;
 */
 class ConsoleApplicationTest extends TestCase
 {
-    public function testVersion()
+    public function testVersion(): void
    {
        $kernel = $this->createMock(KernelInterface::class);
        $sut = new ConsoleApplication($kernel);
--- a/tests/ConstantsTest.php
+++ b/tests/ConstantsTest.php
@@ -17,7 +17,7 @@ use PHPUnit\Framework\TestCase;
 */
 class ConstantsTest extends TestCase
 {
-    public function testBuild()
+    public function testBuild(): void
    {
        $version = Constants::VERSION;
        $versionParts = explode('.', $version);
--- a/tests/Controller/ActivityControllerTest.php
+++ b/tests/Controller/ActivityControllerTest.php
@@ -27,17 +27,17 @@ use Symfony\Component\HttpKernel\HttpKernelBrowser;
 */
 class ActivityControllerTest extends ControllerBaseTest
 {
-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured('/admin/activity/');
    }

-    public function testIsSecureForRole()
+    public function testIsSecureForRole(): void
    {
        $this->assertUrlIsSecuredForRole(User::ROLE_USER, '/admin/activity/');
    }

-    public function testIndexAction()
+    public function testIndexAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_TEAMLEAD);
        $this->assertAccessIsGranted($client, '/admin/activity/');
@@ -49,7 +49,7 @@ class ActivityControllerTest extends ControllerBaseTest
        ]);
    }

-    public function testIndexActionAsSuperAdmin()
+    public function testIndexActionAsSuperAdmin(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/activity/');
@@ -61,7 +61,7 @@ class ActivityControllerTest extends ControllerBaseTest
        ]);
    }

-    public function testIndexActionWithSearchTermQuery()
+    public function testIndexActionWithSearchTermQuery(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

@@ -92,19 +92,19 @@ class ActivityControllerTest extends ControllerBaseTest
        $this->assertDataTableRowCount($client, 'datatable_activity_admin', 5);
    }

-    public function testExportIsSecureForRole()
+    public function testExportIsSecureForRole(): void
    {
        $this->assertUrlIsSecuredForRole(User::ROLE_USER, '/admin/activity/export');
    }

-    public function testExportAction()
+    public function testExportAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_TEAMLEAD);
        $this->assertAccessIsGranted($client, '/admin/activity/export');
        $this->assertExcelExportResponse($client, 'kimai-activities_');
    }

-    public function testExportActionWithSearchTermQuery()
+    public function testExportActionWithSearchTermQuery(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

@@ -134,7 +134,7 @@ class ActivityControllerTest extends ControllerBaseTest
        $this->assertExcelExportResponse($client, 'kimai-activities_');
    }

-    public function testDetailsAction()
+    public function testDetailsAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        /** @var EntityManager $em */
@@ -171,7 +171,7 @@ class ActivityControllerTest extends ControllerBaseTest
        self::assertEquals(1, $node->count());
    }

-    public function testAddRateAction()
+    public function testAddRateAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/activity/1/rate');
@@ -190,7 +190,7 @@ class ActivityControllerTest extends ControllerBaseTest
        self::assertStringContainsString('123.45', $node->text(null, true));
    }

-    public function testCreateAction()
+    public function testCreateAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/activity/create');
@@ -218,7 +218,7 @@ class ActivityControllerTest extends ControllerBaseTest
        $this->assertEquals('An AcTiVitY Name', $editForm->get('activity_edit_form[name]')->getValue());
    }

-    public function testCreateActionShowsMetaFields()
+    public function testCreateActionShowsMetaFields(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        self::getContainer()->get('event_dispatcher')->addSubscriber(new ActivityTestMetaFieldSubscriberMock());
@@ -231,7 +231,7 @@ class ActivityControllerTest extends ControllerBaseTest
        $this->assertFalse($form->has('activity_edit_form[metaFields][0][value]'));
    }

-    public function testEditAction()
+    public function testEditAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/activity/1/edit');
@@ -247,7 +247,7 @@ class ActivityControllerTest extends ControllerBaseTest
        $this->assertEquals('Test 2', $editForm->get('activity_edit_form[name]')->getValue());
    }

-    public function testEditActionForGlobalActivity()
+    public function testEditActionForGlobalActivity(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/activity/1/edit');
@@ -263,7 +263,7 @@ class ActivityControllerTest extends ControllerBaseTest
        $this->assertEquals('Test 2', $editForm->get('activity_edit_form[name]')->getValue());
    }

-    public function testTeamPermissionAction()
+    public function testTeamPermissionAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $em = $this->getEntityManager();
@@ -295,7 +295,7 @@ class ActivityControllerTest extends ControllerBaseTest
        self::assertEquals(2, $activity->getTeams()->count());
    }

-    public function testCreateDefaultTeamAction()
+    public function testCreateDefaultTeamAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/activity/1/details');
@@ -311,7 +311,7 @@ class ActivityControllerTest extends ControllerBaseTest
        self::assertEquals(1, $node->count());
    }

-    public function testDeleteAction()
+    public function testDeleteAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->request($client, '/admin/activity/1/edit');
@@ -332,7 +332,7 @@ class ActivityControllerTest extends ControllerBaseTest
        $this->assertFalse($client->getResponse()->isSuccessful());
    }

-    public function testDeleteActionWithTimesheetEntries()
+    public function testDeleteActionWithTimesheetEntries(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

@@ -372,7 +372,7 @@ class ActivityControllerTest extends ControllerBaseTest
        $this->assertFalse($client->getResponse()->isSuccessful());
    }

-    public function testDeleteActionWithTimesheetEntriesAndReplacement()
+    public function testDeleteActionWithTimesheetEntriesAndReplacement(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

@@ -428,7 +428,7 @@ class ActivityControllerTest extends ControllerBaseTest
    /**
     * @dataProvider getValidationTestData
     */
-    public function testValidationForCreateAction(array $formData, array $validationFields)
+    public function testValidationForCreateAction(array $formData, array $validationFields): void
    {
        $this->assertFormHasValidationError(
            User::ROLE_ADMIN,
--- a/tests/Controller/Auth/SamlControllerTest.php
+++ b/tests/Controller/Auth/SamlControllerTest.php
@@ -60,7 +60,7 @@ class SamlControllerTest extends TestCase
        return new SamlConfiguration($this->getSystemConfigurationMock($this->getDefaultSettings($activated), []));
    }

-    public function testAssertionConsumerServiceAction()
+    public function testAssertionConsumerServiceAction(): void
    {
        $this->expectException(\RuntimeException::class);
        $this->expectExceptionMessage('You must configure the check path in your firewall.');
@@ -71,7 +71,7 @@ class SamlControllerTest extends TestCase
        $sut->assertionConsumerServiceAction();
    }

-    public function testMetadataAction()
+    public function testMetadataAction(): void
    {
        $expectedXmlString = <<<EOD
            <?xml version="1.0"?>
@@ -120,7 +120,7 @@ class SamlControllerTest extends TestCase
        self::assertEquals($expected->firstChild->firstChild, $actual->firstChild->firstChild);
    }

-    public function testLoginActionThrowsErrorOnSecurityErrorAttribute()
+    public function testLoginActionThrowsErrorOnSecurityErrorAttribute(): void
    {
        $this->expectException(\RuntimeException::class);
        $this->expectExceptionMessage('My test error');
@@ -135,7 +135,7 @@ class SamlControllerTest extends TestCase
        $sut->loginAction($request);
    }

-    public function testLoginActionThrowsExceptionOnDisabledSaml()
+    public function testLoginActionThrowsExceptionOnDisabledSaml(): void
    {
        $this->expectException(NotFoundHttpException::class);
        $this->expectExceptionMessage('SAML deactivated');
@@ -146,7 +146,7 @@ class SamlControllerTest extends TestCase
        $sut->loginAction(new Request());
    }

-    public function testMetadataActionThrowsExceptionOnDisabledSaml()
+    public function testMetadataActionThrowsExceptionOnDisabledSaml(): void
    {
        $this->expectException(NotFoundHttpException::class);
        $this->expectExceptionMessage('SAML deactivated');
@@ -157,7 +157,7 @@ class SamlControllerTest extends TestCase
        $sut->metadataAction();
    }

-    public function testLogoutActionThrowsExceptionOnDisabledSaml()
+    public function testLogoutActionThrowsExceptionOnDisabledSaml(): void
    {
        $this->expectException(NotFoundHttpException::class);
        $this->expectExceptionMessage('SAML deactivated');
@@ -168,7 +168,7 @@ class SamlControllerTest extends TestCase
        $sut->logoutAction();
    }

-    public function testAcsActionThrowsExceptionOnDisabledSaml()
+    public function testAcsActionThrowsExceptionOnDisabledSaml(): void
    {
        $this->expectException(NotFoundHttpException::class);
        $this->expectExceptionMessage('SAML deactivated');
--- a/tests/Controller/CalendarControllerTest.php
+++ b/tests/Controller/CalendarControllerTest.php
@@ -20,12 +20,12 @@ use App\Tests\Mocks\SystemConfigurationFactory;
 */
 class CalendarControllerTest extends ControllerBaseTest
 {
-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured('/calendar/');
    }

-    public function testCalendarAction()
+    public function testCalendarAction(): void
    {
        $client = $this->getClientForAuthenticatedUser();
        $fixtures = new TimesheetFixtures($this->getUserByRole(), 10);
@@ -42,13 +42,13 @@ class CalendarControllerTest extends ControllerBaseTest
        $this->assertEquals(1, $dragAndDropBoxes->count());
    }

-    public function testCalendarActionAsSuperAdmin()
+    public function testCalendarActionAsSuperAdmin(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->assertAccessIsGranted($client, '/calendar/');
    }

-    public function testCalendarActionWithGoogleSource()
+    public function testCalendarActionWithGoogleSource(): void
    {
        $loader = new TestConfigLoader([]);
        $config = SystemConfigurationFactory::create($loader, $this->getDefaultSettings());
--- a/tests/Controller/CustomerControllerTest.php
+++ b/tests/Controller/CustomerControllerTest.php
@@ -28,17 +28,17 @@ use Symfony\Component\HttpKernel\HttpKernelBrowser;
 */
 class CustomerControllerTest extends ControllerBaseTest
 {
-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured('/admin/customer/');
    }

-    public function testIsSecureForRole()
+    public function testIsSecureForRole(): void
    {
        $this->assertUrlIsSecuredForRole(User::ROLE_USER, '/admin/customer/');
    }

-    public function testIndexAction()
+    public function testIndexAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_TEAMLEAD);
        $this->assertAccessIsGranted($client, '/admin/customer/');
@@ -49,7 +49,7 @@ class CustomerControllerTest extends ControllerBaseTest
        ]);
    }

-    public function testIndexActionAsSuperAdmin()
+    public function testIndexActionAsSuperAdmin(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/customer/');
@@ -61,7 +61,7 @@ class CustomerControllerTest extends ControllerBaseTest
        ]);
    }

-    public function testIndexActionWithSearchTermQuery()
+    public function testIndexActionWithSearchTermQuery(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

@@ -95,19 +95,19 @@ class CustomerControllerTest extends ControllerBaseTest
        $this->assertDataTableRowCount($client, 'datatable_customer_admin', 5);
    }

-    public function testExportIsSecureForRole()
+    public function testExportIsSecureForRole(): void
    {
        $this->assertUrlIsSecuredForRole(User::ROLE_USER, '/admin/customer/export');
    }

-    public function testExportAction()
+    public function testExportAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_TEAMLEAD);
        $this->assertAccessIsGranted($client, '/admin/customer/export');
        $this->assertExcelExportResponse($client, 'kimai-customers_');
    }

-    public function testExportActionWithSearchTermQuery()
+    public function testExportActionWithSearchTermQuery(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_TEAMLEAD);

@@ -126,7 +126,7 @@ class CustomerControllerTest extends ControllerBaseTest
        $this->assertExcelExportResponse($client, 'kimai-customers_');
    }

-    public function testDetailsAction()
+    public function testDetailsAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/customer/1/details');
@@ -155,7 +155,7 @@ class CustomerControllerTest extends ControllerBaseTest
        self::assertEquals(1, $node->count());
    }

-    public function testAddRateAction()
+    public function testAddRateAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/customer/1/rate');
@@ -174,7 +174,7 @@ class CustomerControllerTest extends ControllerBaseTest
        self::assertStringContainsString('123.45', $node->text(null, true));
    }

-    public function testAddCommentAction()
+    public function testAddCommentAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

@@ -197,7 +197,7 @@ class CustomerControllerTest extends ControllerBaseTest
        self::assertStringContainsString('<p>A beautiful and short comment <strong>with some</strong> markdown formatting</p>', $node->html());
    }

-    public function testDeleteCommentAction()
+    public function testDeleteCommentAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/customer/1/details');
@@ -221,7 +221,7 @@ class CustomerControllerTest extends ControllerBaseTest
        self::assertStringContainsString('There were no comments posted yet', $node->html());
    }

-    public function testDeleteCommentActionWithoutToken()
+    public function testDeleteCommentActionWithoutToken(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/customer/1/details');
@@ -242,7 +242,7 @@ class CustomerControllerTest extends ControllerBaseTest
        $this->assertRouteNotFound($client);
    }

-    public function testPinCommentAction()
+    public function testPinCommentAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/customer/1/details');
@@ -269,7 +269,7 @@ class CustomerControllerTest extends ControllerBaseTest
        self::assertStringContainsString('/comment_pin/', $node->attr('href'));
    }

-    public function testCreateDefaultTeamAction()
+    public function testCreateDefaultTeamAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/customer/1/details');
@@ -285,7 +285,7 @@ class CustomerControllerTest extends ControllerBaseTest
        self::assertEquals(1, $node->count());
    }

-    public function testProjectsAction()
+    public function testProjectsAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/customer/1/projects/1');
@@ -310,7 +310,7 @@ class CustomerControllerTest extends ControllerBaseTest
        self::assertEquals(5, $node->count());
    }

-    public function testCreateAction()
+    public function testCreateAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/customer/create');
@@ -332,7 +332,7 @@ class CustomerControllerTest extends ControllerBaseTest
        $this->assertHasFlashSuccess($client);
    }

-    public function testCreateActionShowsMetaFields()
+    public function testCreateActionShowsMetaFields(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        self::getContainer()->get('event_dispatcher')->addSubscriber(new CustomerTestMetaFieldSubscriberMock());
@@ -345,7 +345,7 @@ class CustomerControllerTest extends ControllerBaseTest
        $this->assertFalse($form->has('customer_edit_form[metaFields][0][value]'));
    }

-    public function testEditAction()
+    public function testEditAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/customer/1/edit');
@@ -363,7 +363,7 @@ class CustomerControllerTest extends ControllerBaseTest
        $this->assertEquals('Test Customer 2', $editForm->get('customer_edit_form[name]')->getValue());
    }

-    public function testTeamPermissionAction()
+    public function testTeamPermissionAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $em = $this->getEntityManager();
@@ -394,7 +394,7 @@ class CustomerControllerTest extends ControllerBaseTest
        self::assertEquals(2, $customer->getTeams()->count());
    }

-    public function testDeleteAction()
+    public function testDeleteAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

@@ -421,7 +421,7 @@ class CustomerControllerTest extends ControllerBaseTest
        $this->assertFalse($client->getResponse()->isSuccessful());
    }

-    public function testDeleteActionWithTimesheetEntries()
+    public function testDeleteActionWithTimesheetEntries(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

@@ -459,7 +459,7 @@ class CustomerControllerTest extends ControllerBaseTest
        $this->assertFalse($client->getResponse()->isSuccessful());
    }

-    public function testDeleteActionWithTimesheetEntriesAndReplacement()
+    public function testDeleteActionWithTimesheetEntriesAndReplacement(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

@@ -513,7 +513,7 @@ class CustomerControllerTest extends ControllerBaseTest
    /**
     * @dataProvider getValidationTestData
     */
-    public function testValidationForCreateAction(array $formData, array $validationFields)
+    public function testValidationForCreateAction(array $formData, array $validationFields): void
    {
        $this->assertFormHasValidationError(
            User::ROLE_ADMIN,
--- a/tests/Controller/DashboardControllerTest.php
+++ b/tests/Controller/DashboardControllerTest.php
@@ -14,12 +14,12 @@ namespace App\Tests\Controller;
 */
 class DashboardControllerTest extends ControllerBaseTest
 {
-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured('/dashboard/');
    }

-    public function testIndexAction()
+    public function testIndexAction(): void
    {
        $client = $this->getClientForAuthenticatedUser();
        $this->request($client, '/dashboard/');
--- a/tests/Controller/DoctorControllerTest.php
+++ b/tests/Controller/DoctorControllerTest.php
@@ -16,17 +16,17 @@ use App\Entity\User;
 */
 class DoctorControllerTest extends ControllerBaseTest
 {
-    public function testDoctorIsSecure()
+    public function testDoctorIsSecure(): void
    {
        $this->assertUrlIsSecured('/doctor');
    }

-    public function testDoctorIsSecureForRole()
+    public function testDoctorIsSecureForRole(): void
    {
        $this->assertUrlIsSecuredForRole(User::ROLE_ADMIN, '/doctor');
    }

-    public function testIndexAction()
+    public function testIndexAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->assertAccessIsGranted($client, '/doctor');
@@ -37,7 +37,7 @@ class DoctorControllerTest extends ControllerBaseTest
        self::assertTrue($counter === 6 || $counter === 5);
    }

-    public function testFlushLogWithInvalidCsrf()
+    public function testFlushLogWithInvalidCsrf(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);

--- a/tests/Controller/ExportControllerTest.php
+++ b/tests/Controller/ExportControllerTest.php
@@ -20,17 +20,17 @@ use Doctrine\ORM\EntityManager;
 */
 class ExportControllerTest extends ControllerBaseTest
 {
-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured('/export/');
    }

-    public function testIsSecureForrole()
+    public function testIsSecureForrole(): void
    {
        $this->assertUrlIsSecuredForRole(User::ROLE_USER, '/export/');
    }

-    public function testIndexActionHasErrorMessageOnEmptyQuery()
+    public function testIndexActionHasErrorMessageOnEmptyQuery(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_TEAMLEAD);

@@ -40,7 +40,7 @@ class ExportControllerTest extends ControllerBaseTest
        $this->assertHasNoEntriesWithFilter($client);
    }

-    public function testIndexActionWithEntriesAndTeams()
+    public function testIndexActionWithEntriesAndTeams(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_TEAMLEAD);
        $em = $this->getEntityManager();
@@ -109,7 +109,7 @@ class ExportControllerTest extends ControllerBaseTest
        $this->assertEmpty($expected);
    }

-    public function testIndexActionWithEntriesForTeamleadDoesNotShowUserWithoutTeam()
+    public function testIndexActionWithEntriesForTeamleadDoesNotShowUserWithoutTeam(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_TEAMLEAD);

@@ -168,7 +168,7 @@ class ExportControllerTest extends ControllerBaseTest
        $this->assertEmpty($expected);
    }

-    public function testExportActionWithMissingRenderer()
+    public function testExportActionWithMissingRenderer(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_TEAMLEAD);
        $this->request($client, '/export/data', 'POST');
@@ -177,7 +177,7 @@ class ExportControllerTest extends ControllerBaseTest
        $this->assert404($response, 'Missing export renderer');
    }

-    public function testExportActionWithInvalidRenderer()
+    public function testExportActionWithInvalidRenderer(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_TEAMLEAD);

@@ -197,7 +197,7 @@ class ExportControllerTest extends ControllerBaseTest
        $this->assert404($response, 'Unknown export renderer');
    }

-    public function testExportAction()
+    public function testExportAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        /** @var EntityManager $em */
--- a/tests/Controller/HomepageControllerTest.php
+++ b/tests/Controller/HomepageControllerTest.php
@@ -18,19 +18,19 @@ use App\Form\Type\InitialViewType;
 */
 class HomepageControllerTest extends ControllerBaseTest
 {
-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured('/homepage');
    }

-    public function testIndexAction()
+    public function testIndexAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $this->request($client, '/homepage');
        $this->assertIsRedirect($client, '/en/timesheet/');
    }

-    public function testIndexActionWithChangedPreferences()
+    public function testIndexActionWithChangedPreferences(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);

--- a/tests/Controller/ProjectControllerTest.php
+++ b/tests/Controller/ProjectControllerTest.php
@@ -32,17 +32,17 @@ use Symfony\Component\HttpKernel\HttpKernelBrowser;
 */
 class ProjectControllerTest extends ControllerBaseTest
 {
-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured('/admin/project/');
    }

-    public function testIsSecureForRole()
+    public function testIsSecureForRole(): void
    {
        $this->assertUrlIsSecuredForRole(User::ROLE_USER, '/admin/project/');
    }

-    public function testIndexAction()
+    public function testIndexAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_TEAMLEAD);
        $this->assertAccessIsGranted($client, '/admin/project/');
@@ -53,7 +53,7 @@ class ProjectControllerTest extends ControllerBaseTest
        ]);
    }

-    public function testIndexActionAsSuperAdmin()
+    public function testIndexActionAsSuperAdmin(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/project/');
@@ -65,7 +65,7 @@ class ProjectControllerTest extends ControllerBaseTest
        ]);
    }

-    public function testIndexActionWithSearchTermQuery()
+    public function testIndexActionWithSearchTermQuery(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

@@ -100,19 +100,19 @@ class ProjectControllerTest extends ControllerBaseTest
        $this->assertDataTableRowCount($client, 'datatable_project_admin', 5);
    }

-    public function testExportIsSecureForRole()
+    public function testExportIsSecureForRole(): void
    {
        $this->assertUrlIsSecuredForRole(User::ROLE_USER, '/admin/project/export');
    }

-    public function testExportAction()
+    public function testExportAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_TEAMLEAD);
        $this->assertAccessIsGranted($client, '/admin/project/export');
        $this->assertExcelExportResponse($client, 'kimai-projects_');
    }

-    public function testExportActionWithSearchTermQuery()
+    public function testExportActionWithSearchTermQuery(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

@@ -141,7 +141,7 @@ class ProjectControllerTest extends ControllerBaseTest
        $this->assertExcelExportResponse($client, 'kimai-projects_');
    }

-    public function testDetailsAction()
+    public function testDetailsAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        /** @var EntityManager $em */
@@ -187,13 +187,13 @@ class ProjectControllerTest extends ControllerBaseTest
        self::assertEquals(1, $node->count());
    }

-    public function testAddRateAction()
+    public function testAddRateAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAddRate($client, 123.45, 1);
    }

-    protected function assertAddRate(HttpKernelBrowser $client, $rate, $projectId)
+    public function assertAddRate(HttpKernelBrowser $client, $rate, $projectId): void
    {
        $this->assertAccessIsGranted($client, '/admin/project/' . $projectId . '/rate');
        $form = $client->getCrawler()->filter('form[name=project_rate_form]')->form();
@@ -211,7 +211,7 @@ class ProjectControllerTest extends ControllerBaseTest
        self::assertStringContainsString($rate, $node->text(null, true));
    }

-    public function testDuplicateAction()
+    public function testDuplicateAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        /** @var EntityManager $em */
@@ -251,7 +251,7 @@ class ProjectControllerTest extends ControllerBaseTest
        self::assertStringContainsString('123.45', $node->text(null, true));
    }

-    public function testDuplicateActionWithInvalidCsrf()
+    public function testDuplicateActionWithInvalidCsrf(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        /** @var EntityManager $em */
@@ -270,7 +270,7 @@ class ProjectControllerTest extends ControllerBaseTest
        $this->assertInvalidCsrfToken($client, '/admin/project/1/duplicate/rsetdzfukgli78t6r5uedtjfzkugl', $this->createUrl('/admin/project/1/details'));
    }

-    public function testAddCommentAction()
+    public function testAddCommentAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/project/1/details');
@@ -291,7 +291,7 @@ class ProjectControllerTest extends ControllerBaseTest
        self::assertStringContainsString('<p>A beautiful and long comment <strong>with some</strong> markdown formatting</p>', $node->html());
    }

-    public function testDeleteCommentAction()
+    public function testDeleteCommentAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/project/1/details');
@@ -314,7 +314,7 @@ class ProjectControllerTest extends ControllerBaseTest
        self::assertStringContainsString('There were no comments posted yet', $node->html());
    }

-    public function testPinCommentAction()
+    public function testPinCommentAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/project/1/details');
@@ -342,7 +342,7 @@ class ProjectControllerTest extends ControllerBaseTest
        self::assertStringContainsString('/comment_pin/', $node->attr('href'));
    }

-    public function testCreateDefaultTeamAction()
+    public function testCreateDefaultTeamAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/project/1/details');
@@ -358,7 +358,7 @@ class ProjectControllerTest extends ControllerBaseTest
        self::assertEquals(1, $node->count());
    }

-    public function testActivitiesAction()
+    public function testActivitiesAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/project/1/activities/1');
@@ -384,7 +384,7 @@ class ProjectControllerTest extends ControllerBaseTest
        self::assertEquals(5, $node->count());
    }

-    public function testCreateAction()
+    public function testCreateAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/project/create');
@@ -403,7 +403,7 @@ class ProjectControllerTest extends ControllerBaseTest
        $this->assertHasFlashSuccess($client);
    }

-    public function testCreateActionShowsMetaFields()
+    public function testCreateActionShowsMetaFields(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        self::getContainer()->get('event_dispatcher')->addSubscriber(new ProjectTestMetaFieldSubscriberMock());
@@ -416,7 +416,7 @@ class ProjectControllerTest extends ControllerBaseTest
        $this->assertFalse($form->has('project_edit_form[metaFields][0][value]'));
    }

-    public function testEditAction()
+    public function testEditAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/project/1/edit');
@@ -432,7 +432,7 @@ class ProjectControllerTest extends ControllerBaseTest
        $this->assertEquals('Test 2', $editForm->get('project_edit_form[name]')->getValue());
    }

-    public function testTeamPermissionAction()
+    public function testTeamPermissionAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $em = $this->getEntityManager();
@@ -463,7 +463,7 @@ class ProjectControllerTest extends ControllerBaseTest
        self::assertEquals(2, $project->getTeams()->count());
    }

-    public function testDeleteAction()
+    public function testDeleteAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

@@ -490,7 +490,7 @@ class ProjectControllerTest extends ControllerBaseTest
        $this->assertFalse($client->getResponse()->isSuccessful());
    }

-    public function testDeleteActionWithTimesheetEntries()
+    public function testDeleteActionWithTimesheetEntries(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

@@ -528,7 +528,7 @@ class ProjectControllerTest extends ControllerBaseTest
        $this->assertFalse($client->getResponse()->isSuccessful());
    }

-    public function testDeleteActionWithTimesheetEntriesAndReplacement()
+    public function testDeleteActionWithTimesheetEntriesAndReplacement(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

@@ -581,7 +581,7 @@ class ProjectControllerTest extends ControllerBaseTest
    /**
     * @dataProvider getValidationTestData
     */
-    public function testValidationForCreateAction(array $formData, array $validationFields)
+    public function testValidationForCreateAction(array $formData, array $validationFields): void
    {
        $this->assertFormHasValidationError(
            User::ROLE_ADMIN,
--- a/tests/Controller/QuickEntryControllerTest.php
+++ b/tests/Controller/QuickEntryControllerTest.php
@@ -16,12 +16,12 @@ use App\Tests\DataFixtures\TimesheetFixtures;
 */
 class QuickEntryControllerTest extends ControllerBaseTest
 {
-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured('/quick_entry');
    }

-    public function testIndexAction()
+    public function testIndexAction(): void
    {
        $client = $this->getClientForAuthenticatedUser();
        $this->request($client, '/quick_entry');
@@ -52,7 +52,7 @@ class QuickEntryControllerTest extends ControllerBaseTest
        self::assertCount(10, $columns);
    }

-    public function testIndexActionWith()
+    public function testIndexActionWith(): void
    {
        $client = $this->getClientForAuthenticatedUser();

--- a/tests/Controller/Reporting/AbstractUserPeriodControllerTest.php
+++ b/tests/Controller/Reporting/AbstractUserPeriodControllerTest.php
@@ -32,7 +32,7 @@ abstract class AbstractUserPeriodControllerTest extends ControllerBaseTest

    abstract protected function getBoxId(): string;

-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured($this->getReportUrl());
    }
@@ -49,7 +49,7 @@ abstract class AbstractUserPeriodControllerTest extends ControllerBaseTest
    /**
     * @dataProvider getTestData
     */
-    public function testUserPeriodReport(int $user, string $dataType, string $title)
+    public function testUserPeriodReport(int $user, string $dataType, string $title): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->importReportingFixture(User::ROLE_SUPER_ADMIN);
@@ -61,7 +61,7 @@ abstract class AbstractUserPeriodControllerTest extends ControllerBaseTest
        self::assertEquals($title, $cell->text());
    }

-    public function testUserPeriodReportAsTeamlead()
+    public function testUserPeriodReportAsTeamlead(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $this->importReportingFixture(User::ROLE_USER);
--- a/tests/Controller/Reporting/AbstractUsersPeriodControllerTest.php
+++ b/tests/Controller/Reporting/AbstractUsersPeriodControllerTest.php
@@ -35,7 +35,7 @@ abstract class AbstractUsersPeriodControllerTest extends ControllerBaseTest

    abstract protected function getBoxId(): string;

-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured($this->getReportUrl());
    }
@@ -52,7 +52,7 @@ abstract class AbstractUsersPeriodControllerTest extends ControllerBaseTest
    /**
     * @dataProvider getTestData
     */
-    public function testUsersPeriodReport(string $dataType, string $title)
+    public function testUsersPeriodReport(string $dataType, string $title): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->importReportingFixture(User::ROLE_SUPER_ADMIN);
@@ -65,7 +65,7 @@ abstract class AbstractUsersPeriodControllerTest extends ControllerBaseTest
    /**
     * @dataProvider getTestData
     */
-    public function testUsersPeriodReportAsTeamlead(string $dataType, string $title)
+    public function testUsersPeriodReportAsTeamlead(string $dataType, string $title): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_TEAMLEAD);
        $this->importReportingFixture(User::ROLE_TEAMLEAD);
@@ -80,7 +80,7 @@ abstract class AbstractUsersPeriodControllerTest extends ControllerBaseTest
    /**
     * @dataProvider getTestData
     */
-    public function testUsersPeriodReportExport(string $dataType, string $title)
+    public function testUsersPeriodReportExport(string $dataType, string $title): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->importReportingFixture(User::ROLE_SUPER_ADMIN);
--- a/tests/Controller/Reporting/CustomerMonthlyProjectsControllerTest.php
+++ b/tests/Controller/Reporting/CustomerMonthlyProjectsControllerTest.php
@@ -24,12 +24,12 @@ use Symfony\Component\HttpKernel\HttpKernelBrowser;
 */
 class CustomerMonthlyProjectsControllerTest extends ControllerBaseTest
 {
-    public function testReportIsSecure()
+    public function testReportIsSecure(): void
    {
        $this->assertUrlIsSecured('/reporting/customer/monthly_projects/view');
    }

-    public function testExportReportIsSecure()
+    public function testExportReportIsSecure(): void
    {
        $this->assertUrlIsSecured('/reporting/customer/monthly_projects/export');
    }
@@ -73,7 +73,7 @@ class CustomerMonthlyProjectsControllerTest extends ControllerBaseTest
        return $client;
    }

-    public function testReport()
+    public function testReport(): void
    {
        $client = $this->prepareReport();

@@ -83,7 +83,7 @@ class CustomerMonthlyProjectsControllerTest extends ControllerBaseTest
        self::assertGreaterThan(0, $rows->count());
    }

-    public function testExport()
+    public function testExport(): void
    {
        $client = $this->prepareReport();

--- a/tests/Controller/Reporting/ProjectDateRangeControllerTest.php
+++ b/tests/Controller/Reporting/ProjectDateRangeControllerTest.php
@@ -23,12 +23,12 @@ use App\Timesheet\DateTimeFactory;
 */
 class ProjectDateRangeControllerTest extends ControllerBaseTest
 {
-    public function testReportIsSecure()
+    public function testReportIsSecure(): void
    {
        $this->assertUrlIsSecured('/reporting/project_daterange');
    }

-    public function testReport()
+    public function testReport(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

--- a/tests/Controller/Reporting/ProjectDetailsControllerTest.php
+++ b/tests/Controller/Reporting/ProjectDetailsControllerTest.php
@@ -21,12 +21,12 @@ use App\Tests\DataFixtures\TimesheetFixtures;
 */
 class ProjectDetailsControllerTest extends ControllerBaseTest
 {
-    public function testReportIsSecure()
+    public function testReportIsSecure(): void
    {
        $this->assertUrlIsSecured('/reporting/project_details');
    }

-    public function testReport()
+    public function testReport(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

--- a/tests/Controller/Reporting/ProjectInactiveControllerTest.php
+++ b/tests/Controller/Reporting/ProjectInactiveControllerTest.php
@@ -21,12 +21,12 @@ use App\Tests\DataFixtures\TimesheetFixtures;
 */
 class ProjectInactiveControllerTest extends ControllerBaseTest
 {
-    public function testReportIsSecure()
+    public function testReportIsSecure(): void
    {
        $this->assertUrlIsSecured('/reporting/project_inactive');
    }

-    public function testReport()
+    public function testReport(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

--- a/tests/Controller/Reporting/ProjectViewControllerTest.php
+++ b/tests/Controller/Reporting/ProjectViewControllerTest.php
@@ -21,12 +21,12 @@ use App\Tests\DataFixtures\TimesheetFixtures;
 */
 class ProjectViewControllerTest extends ControllerBaseTest
 {
-    public function testReportIsSecure()
+    public function testReportIsSecure(): void
    {
        $this->assertUrlIsSecured('/reporting/project_view');
    }

-    public function testReport()
+    public function testReport(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);

--- a/tests/Controller/ReportingControllerTest.php
+++ b/tests/Controller/ReportingControllerTest.php
@@ -16,12 +16,12 @@ use App\Entity\User;
 */
 class ReportingControllerTest extends ControllerBaseTest
 {
-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured('/reporting');
    }

-    public function testOverviewPage()
+    public function testOverviewPage(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_ADMIN);
        $this->request($client, '/reporting/');
@@ -29,7 +29,7 @@ class ReportingControllerTest extends ControllerBaseTest
        $this->assertCount(11, $nodes);
    }

-    public function testOverviewPageAsUser()
+    public function testOverviewPageAsUser(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $this->request($client, '/reporting/');
--- a/tests/Controller/Security/PasswordResetControllerTest.php
+++ b/tests/Controller/Security/PasswordResetControllerTest.php
@@ -24,27 +24,27 @@ class PasswordResetControllerTest extends ControllerBaseTest
        $this->assertRouteNotFound($client);
    }

-    public function testResetRequestWithDeactivatedFeature()
+    public function testResetRequestWithDeactivatedFeature(): void
    {
        $this->testResetActionWithDeactivatedFeature('/resetting/request');
    }

-    public function testSendEmailRequestWithDeactivatedFeature()
+    public function testSendEmailRequestWithDeactivatedFeature(): void
    {
        $this->testResetActionWithDeactivatedFeature('/resetting/send-email', 'POST');
    }

-    public function testCheckEmailWithDeactivatedFeature()
+    public function testCheckEmailWithDeactivatedFeature(): void
    {
        $this->testResetActionWithDeactivatedFeature('/resetting/check-email');
    }

-    public function testResetWithDeactivatedFeature()
+    public function testResetWithDeactivatedFeature(): void
    {
        $this->testResetActionWithDeactivatedFeature('/resetting/reset/1234567890');
    }

-    public function testResetRequestPageIsRendered()
+    public function testResetRequestPageIsRendered(): void
    {
        $client = self::createClient();

--- a/tests/Controller/Security/SelfRegistrationControllerTest.php
+++ b/tests/Controller/Security/SelfRegistrationControllerTest.php
@@ -18,7 +18,7 @@ use Symfony\Bundle\FrameworkBundle\KernelBrowser;
 */
 class SelfRegistrationControllerTest extends ControllerBaseTest
 {
-    private function testRegisterActionWithDeactivatedFeature(string $route)
+    private function assertRegisterActionWithDeactivatedFeature(string $route): void
    {
        $client = self::createClient();
        $this->setSystemConfiguration('user.registration', false);
@@ -26,27 +26,27 @@ class SelfRegistrationControllerTest extends ControllerBaseTest
        $this->assertRouteNotFound($client);
    }

-    public function testRegisterWithDeactivatedFeature()
+    public function testRegisterWithDeactivatedFeature(): void
    {
-        $this->testRegisterActionWithDeactivatedFeature('/register/');
+        $this->assertRegisterActionWithDeactivatedFeature('/register/');
    }

-    public function testCheckEmailWithDeactivatedFeature()
+    public function testCheckEmailWithDeactivatedFeature(): void
    {
-        $this->testRegisterActionWithDeactivatedFeature('/register/check-email');
+        $this->assertRegisterActionWithDeactivatedFeature('/register/check-email');
    }

-    public function testConfirmWithDeactivatedFeature()
+    public function testConfirmWithDeactivatedFeature(): void
    {
-        $this->testRegisterActionWithDeactivatedFeature('/register/confirm/123123');
+        $this->assertRegisterActionWithDeactivatedFeature('/register/confirm/123123');
    }

-    public function testConfirmedWithDeactivatedFeature()
+    public function testConfirmedWithDeactivatedFeature(): void
    {
-        $this->testRegisterActionWithDeactivatedFeature('/register/confirmed');
+        $this->assertRegisterActionWithDeactivatedFeature('/register/confirmed');
    }

-    public function testRegisterAccountPageIsRendered()
+    public function testRegisterAccountPageIsRendered(): void
    {
        $client = self::createClient();
        $this->setSystemConfiguration('user.registration', true);
@@ -98,7 +98,7 @@ class SelfRegistrationControllerTest extends ControllerBaseTest
        return $this->loadUserFromDatabase($username);
    }

-    public function testCheckEmailWithoutEmail()
+    public function testCheckEmailWithoutEmail(): void
    {
        $client = self::createClient();
        $this->setSystemConfiguration('user.registration', true);
@@ -109,7 +109,7 @@ class SelfRegistrationControllerTest extends ControllerBaseTest
        $this->assertTrue($client->getResponse()->isSuccessful());
    }

-    public function testRegisterAccount()
+    public function testRegisterAccount(): void
    {
        $client = self::createClient();
        $this->createUser($client, 'example', 'register@example.com', 'test1234');
@@ -120,7 +120,7 @@ class SelfRegistrationControllerTest extends ControllerBaseTest
        $this->assertStringContainsString('<a href="/en/login">', $content);
    }

-    public function testConfirmWithInvalidToken()
+    public function testConfirmWithInvalidToken(): void
    {
        $client = self::createClient();
        $this->setSystemConfiguration('user.registration', true);
@@ -131,7 +131,7 @@ class SelfRegistrationControllerTest extends ControllerBaseTest
        $this->assertTrue($client->getResponse()->isSuccessful());
    }

-    public function testConfirmAccount()
+    public function testConfirmAccount(): void
    {
        $client = self::createClient();
        $user = $this->createUser($client, 'example', 'register@example.com', 'test1234');
@@ -151,7 +151,7 @@ class SelfRegistrationControllerTest extends ControllerBaseTest
        self::assertTrue($user->isEnabled());
    }

-    public function testConfirmedAnonymousRedirectsToLogin()
+    public function testConfirmedAnonymousRedirectsToLogin(): void
    {
        $client = self::createClient();
        $this->setSystemConfiguration('user.registration', true);
@@ -166,7 +166,7 @@ class SelfRegistrationControllerTest extends ControllerBaseTest
    /**
     * @dataProvider getValidationTestData
     */
-    public function testRegisterActionWithValidationProblems(array $formData, array $validationFields)
+    public function testRegisterActionWithValidationProblems(array $formData, array $validationFields): void
    {
        $client = self::createClient();
        $this->setSystemConfiguration('user.registration', true);
@@ -174,7 +174,7 @@ class SelfRegistrationControllerTest extends ControllerBaseTest
        $this->assertHasValidationError($client, '/register/', 'form[name=user_registration_form]', $formData, $validationFields);
    }

-    public function getValidationTestData()
+    public function getValidationTestData(): array // @phpstan-ignore-line
    {
        return [
            [
--- a/tests/Controller/SystemConfigurationControllerTest.php
+++ b/tests/Controller/SystemConfigurationControllerTest.php
@@ -17,12 +17,12 @@ use App\Entity\User;
 */
 class SystemConfigurationControllerTest extends ControllerBaseTest
 {
-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured('/admin/system-config/');
    }

-    public function testIsSecureForRole()
+    public function testIsSecureForRole(): void
    {
        $this->assertUrlIsSecuredForRole(User::ROLE_ADMIN, '/admin/system-config/');
    }
@@ -32,7 +32,7 @@ class SystemConfigurationControllerTest extends ControllerBaseTest
        return static::getContainer()->get(SystemConfiguration::class);
    }

-    public function testIndexAction()
+    public function testIndexAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/system-config/');
@@ -55,7 +55,7 @@ class SystemConfigurationControllerTest extends ControllerBaseTest
        }
    }

-    public function testSectionAction()
+    public function testSectionAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/system-config/edit/timesheet');
@@ -91,7 +91,7 @@ class SystemConfigurationControllerTest extends ControllerBaseTest
        ];
    }

-    public function testUpdateTimesheetConfig()
+    public function testUpdateTimesheetConfig(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/system-config/');
@@ -129,7 +129,7 @@ class SystemConfigurationControllerTest extends ControllerBaseTest
        $this->assertEquals(99, $configService->find('timesheet.active_entries.hard_limit'));
    }

-    public function testUpdateLockdownPeriodConfig()
+    public function testUpdateLockdownPeriodConfig(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/system-config/');
@@ -164,7 +164,7 @@ class SystemConfigurationControllerTest extends ControllerBaseTest
        $this->assertEquals('+ 12 hours', $configService->find('timesheet.rules.lockdown_grace_period'));
    }

-    public function testUpdateTimesheetConfigValidation()
+    public function testUpdateTimesheetConfigValidation(): void
    {
        $this->assertFormHasValidationError(
            User::ROLE_SUPER_ADMIN,
@@ -190,7 +190,7 @@ class SystemConfigurationControllerTest extends ControllerBaseTest
        );
    }

-    public function testUpdateCustomerConfig()
+    public function testUpdateCustomerConfig(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/system-config/');
@@ -222,7 +222,7 @@ class SystemConfigurationControllerTest extends ControllerBaseTest
        $this->assertEquals('GBP', $configService->find('defaults.customer.currency'));
    }

-    public function testUpdateCustomerConfigWithSingleParam()
+    public function testUpdateCustomerConfigWithSingleParam(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/system-config/edit/customer');
@@ -245,7 +245,7 @@ class SystemConfigurationControllerTest extends ControllerBaseTest
        $this->assertHasFlashSaveSuccess($client);
    }

-    public function testUpdateUserConfig()
+    public function testUpdateUserConfig(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/system-config/edit/user');
@@ -277,7 +277,7 @@ class SystemConfigurationControllerTest extends ControllerBaseTest
        $this->assertEquals('ru', $configService->find('defaults.user.language'));
    }

-    public function testUpdateCustomerConfigValidation()
+    public function testUpdateCustomerConfigValidation(): void
    {
        $this->assertFormHasValidationError(
            User::ROLE_SUPER_ADMIN,
@@ -300,7 +300,7 @@ class SystemConfigurationControllerTest extends ControllerBaseTest
        );
    }

-    public function testUpdateThemeConfig()
+    public function testUpdateThemeConfig(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/system-config/');
@@ -326,7 +326,7 @@ class SystemConfigurationControllerTest extends ControllerBaseTest
        $this->assertTrue($configService->find('timesheet.markdown_content'));
    }

-    public function testUpdateThemeConfigValidation()
+    public function testUpdateThemeConfigValidation(): void
    {
        $this->assertFormHasValidationError(
            User::ROLE_SUPER_ADMIN,
@@ -346,7 +346,7 @@ class SystemConfigurationControllerTest extends ControllerBaseTest
        );
    }

-    public function testUpdateCalendarConfig()
+    public function testUpdateCalendarConfig(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/system-config/');
@@ -387,7 +387,7 @@ class SystemConfigurationControllerTest extends ControllerBaseTest
        $this->assertEquals('21:43', $configService->find('calendar.visibleHours.end'));
    }

-    public function testUpdateCalendarConfigValidation()
+    public function testUpdateCalendarConfigValidation(): void
    {
        $this->assertFormHasValidationError(
            User::ROLE_SUPER_ADMIN,
--- a/tests/Controller/UserControllerTest.php
+++ b/tests/Controller/UserControllerTest.php
@@ -18,17 +18,17 @@ use App\Tests\DataFixtures\TimesheetFixtures;
 */
 class UserControllerTest extends ControllerBaseTest
 {
-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured('/admin/user/');
    }

-    public function testIsSecureForRole()
+    public function testIsSecureForRole(): void
    {
        $this->assertUrlIsSecuredForRole(User::ROLE_ADMIN, '/admin/user/');
    }

-    public function testIndexAction()
+    public function testIndexAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/user/');
@@ -43,7 +43,7 @@ class UserControllerTest extends ControllerBaseTest
        ]);
    }

-    public function testIndexActionWithSearchTermQuery()
+    public function testIndexActionWithSearchTermQuery(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);

@@ -64,19 +64,19 @@ class UserControllerTest extends ControllerBaseTest
        $this->assertDataTableRowCount($client, 'datatable_user_admin', 1);
    }

-    public function testExportIsSecureForRole()
+    public function testExportIsSecureForRole(): void
    {
        $this->assertUrlIsSecuredForRole(User::ROLE_ADMIN, '/admin/user/export');
    }

-    public function testExportAction()
+    public function testExportAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
        $this->assertAccessIsGranted($client, '/admin/user/export');
        $this->assertExcelExportResponse($client, 'kimai-users_');
    }

-    public function testExportActionWithSearchTermQuery()
+    public function testExportActionWithSearchTermQuery(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);

@@ -96,7 +96,7 @@ class UserControllerTest extends ControllerBaseTest
        $this->assertExcelExportResponse($client, 'kimai-users_');
    }

-    public function testCreateAction()
+    public function testCreateAction(): void
    {
        $username = '亚历山德拉' . uniqid();
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);
@@ -119,7 +119,7 @@ class UserControllerTest extends ControllerBaseTest
        $this->assertEquals($username, $form->get('user_edit[alias]')->getValue());
    }

-    public function testDeleteAction()
+    public function testDeleteAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);

@@ -138,7 +138,7 @@ class UserControllerTest extends ControllerBaseTest
        $this->assertFalse($client->getResponse()->isSuccessful());
    }

-    public function testDeleteActionWithTimesheetEntries()
+    public function testDeleteActionWithTimesheetEntries(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);

@@ -172,7 +172,7 @@ class UserControllerTest extends ControllerBaseTest
        $this->assertFalse($client->getResponse()->isSuccessful());
    }

-    public function testDeleteActionWithUserReplacementAndTimesheetEntries()
+    public function testDeleteActionWithUserReplacementAndTimesheetEntries(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_SUPER_ADMIN);

@@ -222,7 +222,7 @@ class UserControllerTest extends ControllerBaseTest
    /**
     * @dataProvider getValidationTestData
     */
-    public function testValidationForCreateAction(array $formData, array $validationFields)
+    public function testValidationForCreateAction(array $formData, array $validationFields): void
    {
        $this->assertFormHasValidationError(
            User::ROLE_SUPER_ADMIN,
--- a/tests/Controller/WidgetControllerTest.php
+++ b/tests/Controller/WidgetControllerTest.php
@@ -16,12 +16,12 @@ use App\Entity\User;
 */
 class WidgetControllerTest extends ControllerBaseTest
 {
-    public function testIsSecure()
+    public function testIsSecure(): void
    {
        $this->assertUrlIsSecured('/widgets/working-time/2020/1');
    }

-    public function testWorkingtimechartAction()
+    public function testWorkingtimechartAction(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
        $this->assertAccessIsGranted($client, '/widgets/working-time/2020/1');
--- a/tests/Controller/WizardControllerTest.php
+++ b/tests/Controller/WizardControllerTest.php
@@ -16,7 +16,7 @@ use App\Entity\User;
 */
 class WizardControllerTest extends ControllerBaseTest
 {
-    public function testUnknownWizard()
+    public function testUnknownWizard(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);

@@ -24,21 +24,21 @@ class WizardControllerTest extends ControllerBaseTest
        $this->assertRouteNotFound($client);
    }

-    public function testIntroWizard()
+    public function testIntroWizard(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);

        $this->assertAccessIsGranted($client, '/wizard/intro');
    }

-    public function testProfileWizard()
+    public function testProfileWizard(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);

        $this->assertAccessIsGranted($client, '/wizard/profile');
    }

-    public function testDoneWizard()
+    public function testDoneWizard(): void
    {
        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);

--- a/tests/Customer/CustomerServiceTest.php
+++ b/tests/Customer/CustomerServiceTest.php
@@ -69,7 +69,7 @@ class CustomerServiceTest extends TestCase
        return new CustomerService($repository, $configuration, $validator, $dispatcher);
    }

-    public function testCannotSavePersistedCustomerAsNew()
+    public function testCannotSavePersistedCustomerAsNew(): void
    {
        $Customer = $this->createMock(Customer::class);
        $Customer->expects($this->once())->method('getId')->willReturn(1);
@@ -82,7 +82,7 @@ class CustomerServiceTest extends TestCase
        $sut->saveNewCustomer($Customer);
    }

-    public function testSaveNewCustomerHasValidationError()
+    public function testSaveNewCustomerHasValidationError(): void
    {
        $constraints = new ConstraintViolationList();
        $constraints->add(new ConstraintViolation('toooo many tests', 'abc.def', [], '$root', 'begin', 4, null, null, null, '$cause'));
@@ -98,7 +98,7 @@ class CustomerServiceTest extends TestCase
        $sut->saveNewCustomer(new Customer('foo'));
    }

-    public function testUpdateDispatchesEvents()
+    public function testUpdateDispatchesEvents(): void
    {
        $Customer = $this->createMock(Customer::class);
        $Customer->method('getId')->willReturn(1);
@@ -121,7 +121,7 @@ class CustomerServiceTest extends TestCase
        $sut->updateCustomer($Customer);
    }

-    public function testCreateNewCustomerDispatchesEvents()
+    public function testCreateNewCustomerDispatchesEvents(): void
    {
        $dispatcher = $this->createMock(EventDispatcherInterface::class);
        $dispatcher->expects($this->exactly(2))->method('dispatch')->willReturnCallback(function ($event) {
@@ -146,7 +146,7 @@ class CustomerServiceTest extends TestCase
        self::assertEquals('RUB', $customer->getCurrency());
    }

-    public function testSaveNewCustomerDispatchesEvents()
+    public function testSaveNewCustomerDispatchesEvents(): void
    {
        $dispatcher = $this->createMock(EventDispatcherInterface::class);
        $dispatcher->expects($this->exactly(2))->method('dispatch')->willReturnCallback(function ($event) {
--- a/tests/DependencyInjection/ConfigurationTest.php
+++ b/tests/DependencyInjection/ConfigurationTest.php
@@ -26,7 +26,7 @@ class ConfigurationTest extends TestCase
        ];
    }

-    protected function assertConfig($inputConfig, $expectedConfig)
+    public function assertConfig($inputConfig, $expectedConfig): void
    {
        $finalizedConfig = $this->getCompiledConfig($inputConfig);

@@ -43,7 +43,7 @@ class ConfigurationTest extends TestCase
        return $node->finalize($normalizedConfig);
    }

-    public function testValidateDataDir()
+    public function testValidateDataDir(): void
    {
        $this->expectException(InvalidConfigurationException::class);
        $this->expectExceptionMessage('Invalid configuration for path "kimai.data_dir": Data directory does not exist');
@@ -51,7 +51,7 @@ class ConfigurationTest extends TestCase
        $this->assertConfig($this->getMinConfig('sdfsdfsdfds'), []);
    }

-    public function testValidateLdapConfigUserBaseDn()
+    public function testValidateLdapConfigUserBaseDn(): void
    {
        $this->expectException(InvalidConfigurationException::class);
        $this->expectExceptionMessage('Invalid configuration for path "kimai.ldap": The "ldap.user.baseDn" config must be set if LDAP is activated.');
@@ -67,7 +67,7 @@ class ConfigurationTest extends TestCase
        $this->assertConfig($config, []);
    }

-    public function testValidateLdapConfig()
+    public function testValidateLdapConfig(): void
    {
        $this->expectException(InvalidConfigurationException::class);
        $this->expectExceptionMessage('Invalid configuration for path "kimai.ldap.connection": The ldap.connection.useSsl and ldap.connection.useStartTls options are mutually exclusive.');
@@ -83,7 +83,7 @@ class ConfigurationTest extends TestCase
        $this->assertConfig($config, []);
    }

-    public function testValidateLdapFilterIncludingReplacer()
+    public function testValidateLdapFilterIncludingReplacer(): void
    {
        $this->expectException(InvalidConfigurationException::class);
        $this->expectExceptionMessage('Invalid configuration for path "kimai.ldap.user.filter": The ldap.user.filter must be enclosed by a matching number of parentheses "()" and must NOT contain a "%s" replacer');
@@ -98,7 +98,7 @@ class ConfigurationTest extends TestCase
        $this->assertConfig($config, []);
    }

-    public function testValidateLdapFilterMissingStartingParenthesis()
+    public function testValidateLdapFilterMissingStartingParenthesis(): void
    {
        $this->expectException(InvalidConfigurationException::class);
        $this->expectExceptionMessage('Invalid configuration for path "kimai.ldap.user.filter": The ldap.user.filter must be enclosed by a matching number of parentheses "()" and must NOT contain a "%s" replacer');
@@ -113,7 +113,7 @@ class ConfigurationTest extends TestCase
        $this->assertConfig($config, []);
    }

-    public function testValidateCalendarDragDropMaxEntries()
+    public function testValidateCalendarDragDropMaxEntries(): void
    {
        $this->expectException(InvalidConfigurationException::class);
        $this->expectExceptionMessage('Invalid configuration for path "kimai.calendar.dragdrop_amount": The dragdrop_amount must be between 0 and 20');
@@ -126,7 +126,7 @@ class ConfigurationTest extends TestCase
        $this->assertConfig($config, []);
    }

-    public function testValidateLdapFilterInvalidParenthesisCounter()
+    public function testValidateLdapFilterInvalidParenthesisCounter(): void
    {
        $this->expectException(InvalidConfigurationException::class);
        $this->expectExceptionMessage('Invalid configuration for path "kimai.ldap.user.filter": The ldap.user.filter must be enclosed by a matching number of parentheses "()" and must NOT contain a "%s" replacer');
@@ -141,7 +141,7 @@ class ConfigurationTest extends TestCase
        $this->assertConfig($config, []);
    }

-    public function testValidateLdapAccountFilterFormatMissingUserAttributeReplacer()
+    public function testValidateLdapAccountFilterFormatMissingUserAttributeReplacer(): void
    {
        $this->expectException(InvalidConfigurationException::class);
        $this->expectExceptionMessage('Invalid configuration for path "kimai.ldap.connection.accountFilterFormat": The accountFilterFormat must be enclosed by a matching number of parentheses "()" and contain one "%s" replacer for the username');
@@ -156,7 +156,7 @@ class ConfigurationTest extends TestCase
        $this->assertConfig($config, []);
    }

-    public function testValidateLdapAccountFilterFormatMissingStartingParenthesis()
+    public function testValidateLdapAccountFilterFormatMissingStartingParenthesis(): void
    {
        $this->expectException(InvalidConfigurationException::class);
        $this->expectExceptionMessage('Invalid configuration for path "kimai.ldap.connection.accountFilterFormat": The accountFilterFormat must be enclosed by a matching number of parentheses "()" and contain one "%s" replacer for the username');
@@ -171,7 +171,7 @@ class ConfigurationTest extends TestCase
        $this->assertConfig($config, []);
    }

-    public function testValidateLdapAccountFilterFormatInvalidParenthesisCounter()
+    public function testValidateLdapAccountFilterFormatInvalidParenthesisCounter(): void
    {
        $this->expectException(InvalidConfigurationException::class);
        $this->expectExceptionMessage('Invalid configuration for path "kimai.ldap.connection.accountFilterFormat": The accountFilterFormat must be enclosed by a matching number of parentheses "()" and contain one "%s" replacer for the username');
@@ -186,7 +186,7 @@ class ConfigurationTest extends TestCase
        $this->assertConfig($config, []);
    }

-    public function testValidateSamlIsMissingMappingForEmail()
+    public function testValidateSamlIsMissingMappingForEmail(): void
    {
        $this->expectException(InvalidConfigurationException::class);
        $this->expectExceptionMessage('Invalid configuration for path "kimai.saml": You need to configure a SAML mapping for the email attribute.');
@@ -200,7 +200,7 @@ class ConfigurationTest extends TestCase
        $this->assertConfig($config, []);
    }

-    public function testValidateSamlDoesNotTriggerOnDeactivatedSaml()
+    public function testValidateSamlDoesNotTriggerOnDeactivatedSaml(): void
    {
        $finalizedConfig = $this->getCompiledConfig($this->getMinConfig());
        $config = $this->getMinConfig();
@@ -212,7 +212,7 @@ class ConfigurationTest extends TestCase
        $this->assertConfig($config, $finalizedConfig);
    }

-    public function testValidateSamlDoesNotTriggerWhenEmailMappingExists()
+    public function testValidateSamlDoesNotTriggerWhenEmailMappingExists(): void
    {
        $config = $this->getMinConfig();
        $config['saml'] = [
@@ -226,7 +226,7 @@ class ConfigurationTest extends TestCase
        $this->assertConfig($config, $finalizedConfig);
    }

-    public function testDefaultLdapSettings()
+    public function testDefaultLdapSettings(): void
    {
        $finalizedConfig = $this->getCompiledConfig($this->getMinConfig());
        $expected = [
@@ -257,7 +257,7 @@ class ConfigurationTest extends TestCase
        self::assertEquals($expected, $finalizedConfig['ldap']);
    }

-    public function testFullDefaultConfig()
+    public function testFullDefaultConfig(): void
    {
        $fullDefaultConfig = [
            'data_dir' => '/tmp/',
--- a/tests/Doctrine/TimesheetSubscriberTest.php
+++ b/tests/Doctrine/TimesheetSubscriberTest.php
@@ -18,7 +18,7 @@ use PHPUnit\Framework\TestCase;
 */
 class TimesheetSubscriberTest extends TestCase
 {
-    public function testGetSubscribedEvents()
+    public function testGetSubscribedEvents(): void
    {
        $sut = new TimesheetSubscriber([]);
        $events = $sut->getSubscribedEvents();
--- a/tests/Entity/AbstractCommentEntityTest.php
+++ b/tests/Entity/AbstractCommentEntityTest.php
@@ -17,7 +17,7 @@ abstract class AbstractCommentEntityTest extends TestCase
 {
    abstract protected function getEntity(): CommentInterface;

-    public function testDefaultValues()
+    public function testDefaultValues(): void
    {
        $sut = $this->getEntity();

@@ -29,7 +29,7 @@ abstract class AbstractCommentEntityTest extends TestCase
        self::assertFalse($sut->isPinned());
    }

-    public function testSetterAndGetter()
+    public function testSetterAndGetter(): void
    {
        $sut = $this->getEntity();

--- a/tests/Entity/AbstractEntityTest.php
+++ b/tests/Entity/AbstractEntityTest.php
@@ -14,7 +14,7 @@ use PHPUnit\Framework\TestCase;

 abstract class AbstractEntityTest extends TestCase
 {
-    protected function assertBudget(EntityWithBudget $entityWithBudget)
+    public function assertBudget(EntityWithBudget $entityWithBudget): void
    {
        $this->assertEquals(0.0, $entityWithBudget->getBudget());
        $this->assertEquals(0, $entityWithBudget->getTimeBudget());
--- a/tests/Entity/AbstractMetaEntityTest.php
+++ b/tests/Entity/AbstractMetaEntityTest.php
@@ -23,7 +23,7 @@ abstract class AbstractMetaEntityTest extends TestCase

    abstract protected function getMetaEntity(): MetaTableTypeInterface;

-    public function testDefaultValues()
+    public function testDefaultValues(): void
    {
        $sut = $this->getMetaEntity();
        self::assertNull($sut->getLabel());
@@ -40,7 +40,7 @@ abstract class AbstractMetaEntityTest extends TestCase
        self::assertEquals(0, $sut->getOrder());
    }

-    public function testSetterAndGetter()
+    public function testSetterAndGetter(): void
    {
        $sut = $this->getMetaEntity();
        self::assertInstanceOf(MetaTableTypeInterface::class, $sut->setName('foo-bar'));
@@ -85,7 +85,7 @@ abstract class AbstractMetaEntityTest extends TestCase
        self::assertSame($entity, $sut->getEntity());
    }

-    public function testMerge()
+    public function testMerge(): void
    {
        $entity1 = $this->getEntity();
        $entity2 = $this->getEntity();
--- a/tests/Entity/ActivityMetaTest.php
+++ b/tests/Entity/ActivityMetaTest.php
@@ -30,7 +30,7 @@ class ActivityMetaTest extends AbstractMetaEntityTest
        return new ActivityMeta();
    }

-    public function testSetEntityThrowsException()
+    public function testSetEntityThrowsException(): void
    {
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Expected instanceof Activity, received "App\Entity\Timesheet"');
--- a/tests/Entity/ActivityRateTest.php
+++ b/tests/Entity/ActivityRateTest.php
@@ -20,7 +20,7 @@ use PHPUnit\Framework\TestCase;
 */
 class ActivityRateTest extends TestCase
 {
-    public function testDefaultValues()
+    public function testDefaultValues(): void
    {
        $sut = new ActivityRate();
        self::assertNull($sut->getId());
@@ -32,7 +32,7 @@ class ActivityRateTest extends TestCase
        self::assertFalse($sut->isFixed());
    }

-    public function testSetterAndGetter()
+    public function testSetterAndGetter(): void
    {
        $sut = new ActivityRate();

--- a/tests/Entity/ActivityTest.php
+++ b/tests/Entity/ActivityTest.php
@@ -23,7 +23,7 @@ use Doctrine\Common\Collections\Collection;
 */
 class ActivityTest extends AbstractEntityTest
 {
-    public function testDefaultValues()
+    public function testDefaultValues(): void
    {
        $sut = new Activity();
        $this->assertNull($sut->getId());
@@ -42,12 +42,12 @@ class ActivityTest extends AbstractEntityTest
        $this->assertInstanceOf(Collection::class, $sut->getTeams());
    }

-    public function testBudgets()
+    public function testBudgets(): void
    {
        $this->assertBudget(new Activity());
    }

-    public function testSetterAndGetter()
+    public function testSetterAndGetter(): void
    {
        $sut = new Activity();
        $this->assertInstanceOf(Activity::class, $sut->setName('foo-bar'));
@@ -82,7 +82,7 @@ class ActivityTest extends AbstractEntityTest
        $this->assertFalse($sut->isGlobal());
    }

-    public function testMetaFields()
+    public function testMetaFields(): void
    {
        $sut = new Activity();
        $meta = new ActivityMeta();
@@ -110,7 +110,7 @@ class ActivityTest extends AbstractEntityTest
        self::assertCount(2, $sut->getVisibleMetaFields());
    }

-    public function testTeams()
+    public function testTeams(): void
    {
        $sut = new Activity();
        $team = new Team('foo');
@@ -133,7 +133,7 @@ class ActivityTest extends AbstractEntityTest
        self::assertCount(0, $team->getActivities());
    }

-    public function testExportAnnotations()
+    public function testExportAnnotations(): void
    {
        $sut = new AnnotationExtractor();

@@ -169,7 +169,7 @@ class ActivityTest extends AbstractEntityTest
        }
    }

-    public function testClone()
+    public function testClone(): void
    {
        $sut = new Activity();
        $sut->setName('activity1111');
--- a/tests/Entity/BookmarkTest.php
+++ b/tests/Entity/BookmarkTest.php
@@ -18,7 +18,7 @@ use PHPUnit\Framework\TestCase;
 */
 class BookmarkTest extends TestCase
 {
-    public function testDefaultValues()
+    public function testDefaultValues(): void
    {
        $sut = new Bookmark();
        $this->assertNull($sut->getId());
@@ -29,7 +29,7 @@ class BookmarkTest extends TestCase
        $this->assertNull($sut->getUser());
    }

-    public function testSetterAndGetter()
+    public function testSetterAndGetter(): void
    {
        $sut = new Bookmark();
        $sut->setName('foo-bar');
--- a/tests/Entity/ConfigurationTest.php
+++ b/tests/Entity/ConfigurationTest.php
@@ -17,7 +17,7 @@ use PHPUnit\Framework\TestCase;
 */
 class ConfigurationTest extends TestCase
 {
-    public function testDefaultValues()
+    public function testDefaultValues(): void
    {
        $sut = new Configuration();
        $this->assertNull($sut->getId());
@@ -25,7 +25,7 @@ class ConfigurationTest extends TestCase
        $this->assertNull($sut->getValue());
    }

-    public function testSetterAndGetter()
+    public function testSetterAndGetter(): void
    {
        $sut = new Configuration();
        $this->assertInstanceOf(Configuration::class, $sut->setName('foo-bar'));
--- a/tests/Entity/CustomerCommentTest.php
+++ b/tests/Entity/CustomerCommentTest.php
@@ -23,7 +23,7 @@ class CustomerCommentTest extends AbstractCommentEntityTest
        return new CustomerComment(new Customer('foo'));
    }

-    public function testEntitySpecificMethods()
+    public function testEntitySpecificMethods(): void
    {
        $sut = $this->getEntity();
        self::assertNotNull($sut->getCustomer());
--- a/tests/Entity/CustomerMetaTest.php
+++ b/tests/Entity/CustomerMetaTest.php
@@ -30,7 +30,7 @@ class CustomerMetaTest extends AbstractMetaEntityTest
        return new CustomerMeta();
    }

-    public function testSetEntityThrowsException()
+    public function testSetEntityThrowsException(): void
    {
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Expected instanceof Customer, received "App\Entity\Activity"');
--- a/tests/Entity/CustomerRateTest.php
+++ b/tests/Entity/CustomerRateTest.php
@@ -20,7 +20,7 @@ use PHPUnit\Framework\TestCase;
 */
 class CustomerRateTest extends TestCase
 {
-    public function testDefaultValues()
+    public function testDefaultValues(): void
    {
        $sut = new CustomerRate();
        self::assertNull($sut->getId());
@@ -32,7 +32,7 @@ class CustomerRateTest extends TestCase
        self::assertFalse($sut->isFixed());
    }

-    public function testSetterAndGetter()
+    public function testSetterAndGetter(): void
    {
        $sut = new CustomerRate();

--- a/tests/Entity/CustomerTest.php
+++ b/tests/Entity/CustomerTest.php
@@ -22,7 +22,7 @@ use Doctrine\Common\Collections\Collection;
 */
 class CustomerTest extends AbstractEntityTest
 {
-    public function testDefaultValues()
+    public function testDefaultValues(): void
    {
        $sut = new Customer('foo');
        self::assertNull($sut->getId());
@@ -54,12 +54,12 @@ class CustomerTest extends AbstractEntityTest
        self::assertEquals(0, $sut->getTeams()->count());
    }

-    public function testBudgets()
+    public function testBudgets(): void
    {
        $this->assertBudget(new Customer('foo'));
    }

-    public function testSetterAndGetter()
+    public function testSetterAndGetter(): void
    {
        $sut = new Customer('foo-bar');
        self::assertEquals('foo-bar', $sut->getName());
@@ -119,7 +119,7 @@ class CustomerTest extends AbstractEntityTest
        self::assertNull($sut->getCurrency());
    }

-    public function testMetaFields()
+    public function testMetaFields(): void
    {
        $sut = new Customer('foo');
        $meta = new CustomerMeta();
@@ -147,7 +147,7 @@ class CustomerTest extends AbstractEntityTest
        self::assertCount(2, $sut->getVisibleMetaFields());
    }

-    public function testTeams()
+    public function testTeams(): void
    {
        $sut = new Customer('foo');
        $team = new Team('foo');
@@ -171,7 +171,7 @@ class CustomerTest extends AbstractEntityTest
        self::assertCount(0, $team->getCustomers());
    }

-    public function testExportAnnotations()
+    public function testExportAnnotations(): void
    {
        $sut = new AnnotationExtractor();

@@ -219,7 +219,7 @@ class CustomerTest extends AbstractEntityTest
        }
    }

-    public function testClone()
+    public function testClone(): void
    {
        $sut = new Customer('mycustomer');
        $sut->setVatId('DE-0123456789');
--- a/tests/Entity/EntityValidationTestTrait.php
+++ b/tests/Entity/EntityValidationTestTrait.php
@@ -21,7 +21,7 @@ trait EntityValidationTestTrait
     * @param object $entity
     * @param array|string $fieldNames
     */
-    protected function assertHasViolationForField(object $entity, $fieldNames, $groups = null)
+    public function assertHasViolationForField(object $entity, $fieldNames, $groups = null): void
    {
        self::bootKernel();
        /** @var ValidatorInterface $validator */
@@ -56,7 +56,7 @@ trait EntityValidationTestTrait
        $this->assertEquals($expected, $countViolations, sprintf('Expected %s violations, found %s in %s.', $expected, $actual, implode(', ', array_keys($violatedFields))));
    }

-    protected function assertHasNoViolations($entity, $groups = null)
+    public function assertHasNoViolations($entity, $groups = null): void
    {
        self::bootKernel();
        /** @var ValidatorInterface $validator */
--- a/tests/Entity/InvoiceMetaTest.php
+++ b/tests/Entity/InvoiceMetaTest.php
@@ -30,7 +30,7 @@ class InvoiceMetaTest extends AbstractMetaEntityTest
        return new InvoiceMeta();
    }

-    public function testSetEntityThrowsException()
+    public function testSetEntityThrowsException(): void
    {
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Expected instanceof Invoice, received "App\Entity\Customer"');
--- a/tests/Entity/InvoiceTemplateTest.php
+++ b/tests/Entity/InvoiceTemplateTest.php
@@ -17,7 +17,7 @@ use PHPUnit\Framework\TestCase;
 */
 class InvoiceTemplateTest extends TestCase
 {
-    public function testDefaultValues()
+    public function testDefaultValues(): void
    {
        $sut = new InvoiceTemplate();

@@ -38,7 +38,7 @@ class InvoiceTemplateTest extends TestCase
        self::assertTrue($sut->isDecimalDuration());
    }

-    public function testSetNullForOptionalValues()
+    public function testSetNullForOptionalValues(): void
    {
        $sut = new InvoiceTemplate();

@@ -49,7 +49,7 @@ class InvoiceTemplateTest extends TestCase
        self::assertInstanceOf(InvoiceTemplate::class, $sut->setPaymentTerms(null));
    }

-    public function testSetterAndGetter()
+    public function testSetterAndGetter(): void
    {
        $sut = new InvoiceTemplate();

@@ -83,7 +83,7 @@ class InvoiceTemplateTest extends TestCase
        self::assertEquals($sut, clone $sut);
    }

-    public function testToString()
+    public function testToString(): void
    {
        $sut = new InvoiceTemplate();

--- a/tests/Entity/InvoiceTest.php
+++ b/tests/Entity/InvoiceTest.php
@@ -35,7 +35,7 @@ use PHPUnit\Framework\TestCase;
 */
 class InvoiceTest extends TestCase
 {
-    public function testDefaultValues()
+    public function testDefaultValues(): void
    {
        $sut = new Invoice();
        self::assertNull($sut->getCreatedAt());
@@ -58,7 +58,7 @@ class InvoiceTest extends TestCase
        self::assertNull($sut->getComment());
    }

-    public function testSetInvalidStatus()
+    public function testSetInvalidStatus(): void
    {
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Unknown invoice status');
@@ -67,7 +67,7 @@ class InvoiceTest extends TestCase
        $sut->setStatus('foo');
    }

-    public function testSetterAndGetter()
+    public function testSetterAndGetter(): void
    {
        $date = new \DateTime('-2 months');
        $sut = new Invoice();
@@ -219,7 +219,7 @@ class InvoiceTest extends TestCase
        return new DateNumberGenerator($repository);
    }

-    public function testClone()
+    public function testClone(): void
    {
        $sut = new Invoice();
        $sut->setComment('foo kajsdhgf aksjdhfg');
@@ -242,7 +242,7 @@ class InvoiceTest extends TestCase
        self::assertEquals('foo kajsdhgf aksjdhfg', $clone->getComment());
    }

-    public function testMetaFields()
+    public function testMetaFields(): void
    {
        $sut = new Invoice();

--- a/tests/Entity/ProjectCommentTest.php
+++ b/tests/Entity/ProjectCommentTest.php
@@ -23,7 +23,7 @@ class ProjectCommentTest extends AbstractCommentEntityTest
        return new ProjectComment(new Project());
    }

-    public function testEntitySpecificMethods()
+    public function testEntitySpecificMethods(): void
    {
        $sut = $this->getEntity();
        self::assertNotNull($sut->getProject());
--- a/tests/Entity/ProjectMetaTest.php
+++ b/tests/Entity/ProjectMetaTest.php
@@ -30,7 +30,7 @@ class ProjectMetaTest extends AbstractMetaEntityTest
        return new ProjectMeta();
    }

-    public function testSetEntityThrowsException()
+    public function testSetEntityThrowsException(): void
    {
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Expected instanceof Project, received "App\Entity\Customer"');
--- a/tests/Entity/ProjectRateTest.php
+++ b/tests/Entity/ProjectRateTest.php
@@ -20,7 +20,7 @@ use PHPUnit\Framework\TestCase;
 */
 class ProjectRateTest extends TestCase
 {
-    public function testDefaultValues()
+    public function testDefaultValues(): void
    {
        $sut = new ProjectRate();
        self::assertNull($sut->getId());
@@ -32,7 +32,7 @@ class ProjectRateTest extends TestCase
        self::assertFalse($sut->isFixed());
    }

-    public function testSetterAndGetter()
+    public function testSetterAndGetter(): void
    {
        $sut = new ProjectRate();

--- a/tests/Entity/ProjectTest.php
+++ b/tests/Entity/ProjectTest.php
@@ -23,7 +23,7 @@ use Doctrine\Common\Collections\Collection;
 */
 class ProjectTest extends AbstractEntityTest
 {
-    public function testDefaultValues()
+    public function testDefaultValues(): void
    {
        $sut = new Project();
        self::assertNull($sut->getId());
@@ -48,12 +48,12 @@ class ProjectTest extends AbstractEntityTest
        self::assertTrue($sut->isVisibleAtDate(new \DateTime()));
    }

-    public function testBudgets()
+    public function testBudgets(): void
    {
        $this->assertBudget(new Project());
    }

-    public function testSetterAndGetter()
+    public function testSetterAndGetter(): void
    {
        $sut = new Project();

@@ -110,7 +110,7 @@ class ProjectTest extends AbstractEntityTest
        self::assertFalse($sut->isGlobalActivities());
    }

-    public function testMetaFields()
+    public function testMetaFields(): void
    {
        $sut = new Project();
        $meta = new ProjectMeta();
@@ -138,7 +138,7 @@ class ProjectTest extends AbstractEntityTest
        self::assertCount(2, $sut->getVisibleMetaFields());
    }

-    public function testTeams()
+    public function testTeams(): void
    {
        $sut = new Project();
        $team = new Team('foo');
@@ -161,7 +161,7 @@ class ProjectTest extends AbstractEntityTest
        self::assertCount(0, $team->getProjects());
    }

-    public function testExportAnnotations()
+    public function testExportAnnotations(): void
    {
        $sut = new AnnotationExtractor();

@@ -201,7 +201,7 @@ class ProjectTest extends AbstractEntityTest
        }
    }

-    public function testClone()
+    public function testClone(): void
    {
        $customer = new Customer('prj-customer');
        $customer->setVatId('DE-0123456789');
@@ -241,7 +241,7 @@ class ProjectTest extends AbstractEntityTest
        self::assertEquals('prj-customer', $clone->getCustomer()->getName());
    }

-    public function testIsVisibleAtDateTime()
+    public function testIsVisibleAtDateTime(): void
    {
        $now = new \DateTime();

--- a/tests/Entity/RolePermissionTest.php
+++ b/tests/Entity/RolePermissionTest.php
@@ -18,7 +18,7 @@ use PHPUnit\Framework\TestCase;
 */
 class RolePermissionTest extends TestCase
 {
-    public function testDefaultValues()
+    public function testDefaultValues(): void
    {
        $sut = new RolePermission();
        self::assertNull($sut->getId());
@@ -27,7 +27,7 @@ class RolePermissionTest extends TestCase
        self::assertFalse($sut->isAllowed());
    }

-    public function testSetterAndGetter()
+    public function testSetterAndGetter(): void
    {
        $sut = new RolePermission();

--- a/tests/Entity/TagTest.php
+++ b/tests/Entity/TagTest.php
@@ -17,7 +17,7 @@ use PHPUnit\Framework\TestCase;
 */
 class TagTest extends TestCase
 {
-    public function testDefaultValues()
+    public function testDefaultValues(): void
    {
        $sut = new Tag();
        $this->assertNull($sut->getId());
@@ -25,7 +25,7 @@ class TagTest extends TestCase
        $this->assertNull($sut->getColor());
    }

-    public function testSetterAndGetter()
+    public function testSetterAndGetter(): void
    {
        $sut = new Tag();

--- a/tests/Entity/TeamTest.php
+++ b/tests/Entity/TeamTest.php
@@ -24,7 +24,7 @@ use PHPUnit\Framework\TestCase;
 */
 class TeamTest extends TestCase
 {
-    public function testDefaultValues()
+    public function testDefaultValues(): void
    {
        $sut = new Team('foo');
        self::assertNull($sut->getId());
@@ -40,7 +40,7 @@ class TeamTest extends TestCase
        self::assertEquals(0, $sut->getActivities()->count());
    }

-    public function testColor()
+    public function testColor(): void
    {
        $sut = new Team('foo');
        self::assertNull($sut->getColor());
@@ -55,7 +55,7 @@ class TeamTest extends TestCase
        self::assertTrue($sut->hasColor());
    }

-    public function testTeamMemberships()
+    public function testTeamMemberships(): void
    {
        $user = new User();
        $user2 = new User();
@@ -115,7 +115,7 @@ class TeamTest extends TestCase
        self::assertCount(2, $sut->getMembers());
    }

-    public function testTeamMembershipsException()
+    public function testTeamMembershipsException(): void
    {
        $this->expectException(\InvalidArgumentException::class);
        $sut = new Team('foo');
@@ -124,7 +124,7 @@ class TeamTest extends TestCase
        $sut->addMember($member);
    }

-    public function testSetterAndGetter()
+    public function testSetterAndGetter(): void
    {
        $sut = new Team('foo-bar');
        self::assertEquals('foo-bar', $sut->getName());
@@ -156,7 +156,7 @@ class TeamTest extends TestCase
        self::assertCount(2, $sut->getTeamleads());
    }

-    public function testCustomer()
+    public function testCustomer(): void
    {
        $customer = new Customer('foo');
        self::assertEmpty($customer->getTeams());
@@ -175,7 +175,7 @@ class TeamTest extends TestCase
        self::assertEquals(0, $sut->getCustomers()->count());
    }

-    public function testProject()
+    public function testProject(): void
    {
        $project = new Project();
        $project->setName('foo');
@@ -195,7 +195,7 @@ class TeamTest extends TestCase
        self::assertEquals(0, $sut->getProjects()->count());
    }

-    public function testActivities()
+    public function testActivities(): void
    {
        $activity = new Activity();
        $activity->setName('foo');
@@ -215,7 +215,7 @@ class TeamTest extends TestCase
        self::assertEquals(0, $sut->getActivities()->count());
    }

-    public function testUsers()
+    public function testUsers(): void
    {
        $user = new User();
        $user->setAlias('foo');
@@ -241,7 +241,7 @@ class TeamTest extends TestCase
        self::assertCount(1, $sut->getUsers());
    }

-    public function testClone()
+    public function testClone(): void
    {
        $c = new Customer('Foo');
        $p = new Project();
--- a/tests/Entity/TimesheetMetaTest.php
+++ b/tests/Entity/TimesheetMetaTest.php
@@ -30,7 +30,7 @@ class TimesheetMetaTest extends AbstractMetaEntityTest
        return new TimesheetMeta();
    }

-    public function testSetEntityThrowsException()
+    public function testSetEntityThrowsException(): void
    {
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Expected instanceof Timesheet, received "App\Entity\Project"');
--- a/tests/Entity/TimesheetValidationTest.php
+++ b/tests/Entity/TimesheetValidationTest.php
@@ -44,7 +44,7 @@ class TimesheetValidationTest extends KernelTestCase
        return $entity;
    }

-    public function testValidationNeedsActivity()
+    public function testValidationNeedsActivity(): void
    {
        $project = new Project();
        $project->setCustomer(new Customer('foo'));
@@ -57,7 +57,7 @@ class TimesheetValidationTest extends KernelTestCase
        $this->assertHasViolationForField($entity, 'activity');
    }

-    public function testValidationNeedsProject()
+    public function testValidationNeedsProject(): void
    {
        $entity = new Timesheet();
        $entity->setUser(new User());
@@ -67,7 +67,7 @@ class TimesheetValidationTest extends KernelTestCase
        $this->assertHasViolationForField($entity, 'project');
    }

-    public function testValidationProjectMismatch()
+    public function testValidationProjectMismatch(): void
    {
        $customer = new Customer('foo');
        $project = (new Project())->setName('foo')->setCustomer($customer);
@@ -83,7 +83,7 @@ class TimesheetValidationTest extends KernelTestCase
        $this->assertHasViolationForField($entity, 'project');
    }

-    public function testValidationCustomerInvisible()
+    public function testValidationCustomerInvisible(): void
    {
        $customer = new Customer('foo');
        $customer->setVisible(false);
@@ -124,7 +124,7 @@ class TimesheetValidationTest extends KernelTestCase
        return $entity;
    }

-    public function testValidationCustomerInvisibleDoesNotTriggerOnStoppedEntities()
+    public function testValidationCustomerInvisibleDoesNotTriggerOnStoppedEntities(): void
    {
        $customer = new Customer('foo');
        $customer->setVisible(false);
@@ -140,7 +140,7 @@ class TimesheetValidationTest extends KernelTestCase
        $this->assertHasNoViolations($entity);
    }

-    public function testValidationCustomerInvisibleDoesTriggerOnNewEntities()
+    public function testValidationCustomerInvisibleDoesTriggerOnNewEntities(): void
    {
        $customer = new Customer('foo');
        $customer->setVisible(false);
@@ -156,7 +156,7 @@ class TimesheetValidationTest extends KernelTestCase
        $this->assertHasViolationForField($entity, 'customer');
    }

-    public function testValidationProjectInvisible()
+    public function testValidationProjectInvisible(): void
    {
        $customer = new Customer('foo');
        $project = (new Project())->setName('foo')->setCustomer($customer)->setVisible(false);
@@ -172,7 +172,7 @@ class TimesheetValidationTest extends KernelTestCase
        $this->assertHasViolationForField($entity, 'project');
    }

-    public function testValidationProjectInvisibleDoesNotTriggerOnStoppedEntities()
+    public function testValidationProjectInvisibleDoesNotTriggerOnStoppedEntities(): void
    {
        $customer = new Customer('foo');
        $project = (new Project())->setName('foo')->setCustomer($customer)->setVisible(false);
@@ -183,7 +183,7 @@ class TimesheetValidationTest extends KernelTestCase
        $this->assertHasNoViolations($entity);
    }

-    public function testValidationProjectInvisibleDoesTriggerOnNewEntities()
+    public function testValidationProjectInvisibleDoesTriggerOnNewEntities(): void
    {
        $customer = new Customer('foo');
        $project = (new Project())->setName('foo')->setCustomer($customer)->setVisible(false);
@@ -194,7 +194,7 @@ class TimesheetValidationTest extends KernelTestCase
        $this->assertHasViolationForField($entity, 'project');
    }

-    public function testValidationActivityInvisible()
+    public function testValidationActivityInvisible(): void
    {
        $customer = new Customer('foo');
        $project = (new Project())->setName('foo')->setCustomer($customer);
@@ -210,7 +210,7 @@ class TimesheetValidationTest extends KernelTestCase
        $this->assertHasViolationForField($entity, 'activity');
    }

-    public function testValidationActivityInvisibleDoesNotTriggerOnStoppedEntities()
+    public function testValidationActivityInvisibleDoesNotTriggerOnStoppedEntities(): void
    {
        $customer = new Customer('foo');
        $project = new Project();
@@ -226,7 +226,7 @@ class TimesheetValidationTest extends KernelTestCase
        $this->assertHasNoViolations($entity);
    }

-    public function testValidationActivityInvisibleDoesTriggerOnNewEntities()
+    public function testValidationActivityInvisibleDoesTriggerOnNewEntities(): void
    {
        $customer = new Customer('foo');
        $project = new Project();
@@ -242,7 +242,7 @@ class TimesheetValidationTest extends KernelTestCase
        $this->assertHasViolationForField($entity, 'activity');
    }

-    public function testValidationEndNotEarlierThanBegin()
+    public function testValidationEndNotEarlierThanBegin(): void
    {
        $entity = $this->getEntity();
        $begin = new \DateTime();
--- a/tests/Entity/UserPreferenceTest.php
+++ b/tests/Entity/UserPreferenceTest.php
@@ -20,7 +20,7 @@ use Symfony\Component\Form\Extension\Core\Type\IntegerType;
 */
 class UserPreferenceTest extends TestCase
 {
-    public function testDefaultValues()
+    public function testDefaultValues(): void
    {
        $sut = new UserPreference('foo');
        self::assertTrue($sut->isEnabled());
@@ -38,7 +38,7 @@ class UserPreferenceTest extends TestCase
        self::assertNull($sut->getUser());
    }

-    public function testGetValueChangesReturnTypeOnOtherType()
+    public function testGetValueChangesReturnTypeOnOtherType(): void
    {
        $sut = new UserPreference('foo');
        $sut->setValue('1');
@@ -52,7 +52,7 @@ class UserPreferenceTest extends TestCase
        self::assertFalse($sut->getValue());
    }

-    public function testGetLabelWithLabelOption()
+    public function testGetLabelWithLabelOption(): void
    {
        $sut = new UserPreference('foo');
        self::assertEquals('foo', $sut->getLabel());
--- a/tests/Entity/UserTest.php
+++ b/tests/Entity/UserTest.php
@@ -116,7 +116,7 @@ class UserTest extends TestCase
        $user->setWorkHoursFriday(7600);
        $user->setWorkHoursSaturday(7700);
        $user->setWorkHoursSunday(7800);
-        $user->setHolidaysPerYear(10);
+        $user->setHolidaysPerYear(10.7);
        self::assertTrue($user->hasWorkHourConfiguration());

        self::assertEquals(7200, $user->getWorkHoursMonday());
@@ -126,7 +126,7 @@ class UserTest extends TestCase
        self::assertEquals(7600, $user->getWorkHoursFriday());
        self::assertEquals(7700, $user->getWorkHoursSaturday());
        self::assertEquals(7800, $user->getWorkHoursSunday());
-        self::assertEquals(10, $user->getHolidaysPerYear());
+        self::assertEquals(10.5, $user->getHolidaysPerYear());

        self::assertEquals(7200, $user->getWorkHoursForDay($monday));
        self::assertEquals(7300, $user->getWorkHoursForDay($tuesday));
--- a/tests/Event/AbstractActivityEventTest.php
+++ b/tests/Event/AbstractActivityEventTest.php
@@ -18,7 +18,7 @@ abstract class AbstractActivityEventTest extends TestCase
 {
    abstract protected function createActivityEvent(Activity $activity): AbstractActivityEvent;

-    public function testGetterAndSetter()
+    public function testGetterAndSetter(): void
    {
        $activity = new Activity();
        $sut = $this->createActivityEvent($activity);
--- a/tests/Event/AbstractCustomerEventTest.php
+++ b/tests/Event/AbstractCustomerEventTest.php
@@ -18,7 +18,7 @@ abstract class AbstractCustomerEventTest extends TestCase
 {
    abstract protected function createCustomerEvent(Customer $customer): AbstractCustomerEvent;

-    public function testGetterAndSetter()
+    public function testGetterAndSetter(): void
    {
        $customer = new Customer('foo');
        $sut = $this->createCustomerEvent($customer);
--- a/tests/Event/AbstractProjectEventTest.php
+++ b/tests/Event/AbstractProjectEventTest.php
@@ -18,7 +18,7 @@ abstract class AbstractProjectEventTest extends TestCase
 {
    abstract protected function createProjectEvent(Project $project): AbstractProjectEvent;

-    public function testGetterAndSetter()
+    public function testGetterAndSetter(): void
    {
        $project = new Project();
        $sut = $this->createProjectEvent($project);
--- a/tests/Event/AbstractTimesheetEventTest.php
+++ b/tests/Event/AbstractTimesheetEventTest.php
@@ -18,7 +18,7 @@ abstract class AbstractTimesheetEventTest extends TestCase
 {
    abstract protected function createTimesheetEvent(Timesheet $timesheet): AbstractTimesheetEvent;

-    public function testGetterAndSetter()
+    public function testGetterAndSetter(): void
    {
        $timesheet = new Timesheet();
        $sut = $this->createTimesheetEvent($timesheet);
--- a/tests/Event/AbstractTimesheetMultipleEventTest.php
+++ b/tests/Event/AbstractTimesheetMultipleEventTest.php
@@ -18,7 +18,7 @@ abstract class AbstractTimesheetMultipleEventTest extends TestCase
 {
    abstract protected function createTimesheetMultipleEvent(array $timesheets): AbstractTimesheetMultipleEvent;

-    public function testGetterAndSetter()
+    public function testGetterAndSetter(): void
    {
        $timesheets = [new Timesheet(), new Timesheet()];
        $sut = $this->createTimesheetMultipleEvent($timesheets);
--- a/tests/Event/ActivityMetaDefinitionEventTest.php
+++ b/tests/Event/ActivityMetaDefinitionEventTest.php
@@ -18,7 +18,7 @@ use PHPUnit\Framework\TestCase;
 */
 class ActivityMetaDefinitionEventTest extends TestCase
 {
-    public function testGetterAndSetter()
+    public function testGetterAndSetter(): void
    {
        $activity = new Activity();
        $sut = new ActivityMetaDefinitionEvent($activity);
--- a/tests/Event/ActivityMetaDisplayEventTest.php
+++ b/tests/Event/ActivityMetaDisplayEventTest.php
@@ -21,7 +21,7 @@ use PHPUnit\Framework\TestCase;
 */
 class ActivityMetaDisplayEventTest extends TestCase
 {
-    public function testGetterAndSetter()
+    public function testGetterAndSetter(): void
    {
        $query = new ActivityQuery();
        $sut = new ActivityMetaDisplayEvent($query, ActivityMetaDisplayEvent::EXPORT);
--- a/tests/Event/CalendarConfigurationEventTest.php
+++ b/tests/Event/CalendarConfigurationEventTest.php
@@ -17,7 +17,7 @@ use PHPUnit\Framework\TestCase;
 */
 class CalendarConfigurationEventTest extends TestCase
 {
-    public function testGetterAndSetter()
+    public function testGetterAndSetter(): void
    {
        $configuration = [
          'a' => 'b',
--- a/tests/Event/CalendarDragAndDropSourceEventTest.php
+++ b/tests/Event/CalendarDragAndDropSourceEventTest.php
@@ -19,7 +19,7 @@ use PHPUnit\Framework\TestCase;
 */
 class CalendarDragAndDropSourceEventTest extends TestCase
 {
-    public function testGetterAndSetter()
+    public function testGetterAndSetter(): void
    {
        $user = new User();
        $user->setAlias('foo');
--- a/tests/Event/CalendarGoogleSourceEventTest.php
+++ b/tests/Event/CalendarGoogleSourceEventTest.php
@@ -19,7 +19,7 @@ use PHPUnit\Framework\TestCase;
 */
 class CalendarGoogleSourceEventTest extends TestCase
 {
-    public function testGetterAndSetter()
+    public function testGetterAndSetter(): void
    {
        $user = new User();
        $user->setAlias('foo');
--- a/tests/Event/CustomerMetaDefinitionEventTest.php
+++ b/tests/Event/CustomerMetaDefinitionEventTest.php
@@ -18,7 +18,7 @@ use PHPUnit\Framework\TestCase;
 */
 class CustomerMetaDefinitionEventTest extends TestCase
 {
-    public function testGetterAndSetter()
+    public function testGetterAndSetter(): void
    {
        $customer = new Customer('foo');
        $sut = new CustomerMetaDefinitionEvent($customer);
--- a/tests/Event/CustomerMetaDisplayEventTest.php
+++ b/tests/Event/CustomerMetaDisplayEventTest.php
@@ -21,7 +21,7 @@ use PHPUnit\Framework\TestCase;
 */
 class CustomerMetaDisplayEventTest extends TestCase
 {
-    public function testGetterAndSetter()
+    public function testGetterAndSetter(): void
    {
        $query = new CustomerQuery();
        $sut = new CustomerMetaDisplayEvent($query, CustomerMetaDisplayEvent::EXPORT);
--- a/tests/Event/CustomerStatisticEventTest.php
+++ b/tests/Event/CustomerStatisticEventTest.php
@@ -25,7 +25,7 @@ class CustomerStatisticEventTest extends AbstractCustomerEventTest
        return new CustomerStatisticEvent($customer, new CustomerStatistic());
    }

-    public function testStatistic()
+    public function testStatistic(): void
    {
        $customer = new Customer('foo');
        $statistic = new CustomerStatistic();
--- a/tests/Event/DashboardEventTest.php
+++ b/tests/Event/DashboardEventTest.php
@@ -18,7 +18,7 @@ use PHPUnit\Framework\TestCase;
 */
 class DashboardEventTest extends TestCase
 {
-    public function testGetterAndSetter()
+    public function testGetterAndSetter(): void
    {
        $user = new User();
        $user->setAlias('foo');
--- a/Show More
+++ b/Show More