diff --git a/rector.php b/rector.php
index 2d35b37ec..360b18552 100644
--- a/rector.php
+++ b/rector.php
@@ -27,6 +27,7 @@ return static function (RectorConfig $rectorConfig): void {
         LevelSetList::UP_TO_PHP_82,
         \Rector\Symfony\Set\SymfonyLevelSetList::UP_TO_SYMFONY_44,
         \Rector\Doctrine\Set\DoctrineSetList::DOCTRINE_CODE_QUALITY,
+        \Rector\PHPUnit\Set\PHPUnitLevelSetList::UP_TO_PHPUNIT_90,
     ]);
 
     // some routes are added twice if it remains activated
diff --git a/src/Bundle/ChillActivityBundle/Tests/Controller/ActivityControllerTest.php b/src/Bundle/ChillActivityBundle/Tests/Controller/ActivityControllerTest.php
index bf183ebca..252bd88d2 100644
--- a/src/Bundle/ChillActivityBundle/Tests/Controller/ActivityControllerTest.php
+++ b/src/Bundle/ChillActivityBundle/Tests/Controller/ActivityControllerTest.php
@@ -192,7 +192,7 @@ final class ActivityControllerTest extends WebTestCase
 
         $crawler = $client->followRedirect();
 
-        $this->assertNotContains('January 25, 2015', $crawler->text());
+        $this->assertStringNotContainsString('January 25, 2015', $crawler->text());
     }
 
     /**
diff --git a/src/Bundle/ChillActivityBundle/Tests/Controller/ActivityReasonCategoryControllerTest.php b/src/Bundle/ChillActivityBundle/Tests/Controller/ActivityReasonCategoryControllerTest.php
index 88d6535d2..cea8482dc 100644
--- a/src/Bundle/ChillActivityBundle/Tests/Controller/ActivityReasonCategoryControllerTest.php
+++ b/src/Bundle/ChillActivityBundle/Tests/Controller/ActivityReasonCategoryControllerTest.php
@@ -19,6 +19,9 @@ use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
  */
 final class ActivityReasonCategoryControllerTest extends WebTestCase
 {
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testToWrite(): never
     {
         $this->markTestSkipped();
diff --git a/src/Bundle/ChillActivityBundle/Tests/Controller/ActivityReasonControllerTest.php b/src/Bundle/ChillActivityBundle/Tests/Controller/ActivityReasonControllerTest.php
index eafa7ed0b..338e92c87 100644
--- a/src/Bundle/ChillActivityBundle/Tests/Controller/ActivityReasonControllerTest.php
+++ b/src/Bundle/ChillActivityBundle/Tests/Controller/ActivityReasonControllerTest.php
@@ -19,6 +19,9 @@ use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
  */
 final class ActivityReasonControllerTest extends WebTestCase
 {
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testToWrite(): never
     {
         $this->markTestSkipped();
diff --git a/src/Bundle/ChillActivityBundle/Tests/Controller/ActivityTypeControllerTest.php b/src/Bundle/ChillActivityBundle/Tests/Controller/ActivityTypeControllerTest.php
index 49c0c6a08..911198b1e 100644
--- a/src/Bundle/ChillActivityBundle/Tests/Controller/ActivityTypeControllerTest.php
+++ b/src/Bundle/ChillActivityBundle/Tests/Controller/ActivityTypeControllerTest.php
@@ -19,6 +19,9 @@ use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
  */
 final class ActivityTypeControllerTest extends WebTestCase
 {
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testToWrite(): never
     {
         $this->markTestSkipped();
diff --git a/src/Bundle/ChillActivityBundle/Tests/Form/Type/TranslatableActivityReasonTest.php b/src/Bundle/ChillActivityBundle/Tests/Form/Type/TranslatableActivityReasonTest.php
index 82750a751..1bfa2878c 100644
--- a/src/Bundle/ChillActivityBundle/Tests/Form/Type/TranslatableActivityReasonTest.php
+++ b/src/Bundle/ChillActivityBundle/Tests/Form/Type/TranslatableActivityReasonTest.php
@@ -34,6 +34,9 @@ final class TranslatableActivityReasonTest extends TypeTestCase
         parent::setUp();
     }
 
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testSimple(): never
     {
         $translatableActivityReasonType = new PickActivityReasonType(
diff --git a/src/Bundle/ChillActivityBundle/Tests/Timeline/TimelineProviderTest.php b/src/Bundle/ChillActivityBundle/Tests/Timeline/TimelineProviderTest.php
index ff6f46567..989565262 100644
--- a/src/Bundle/ChillActivityBundle/Tests/Timeline/TimelineProviderTest.php
+++ b/src/Bundle/ChillActivityBundle/Tests/Timeline/TimelineProviderTest.php
@@ -19,6 +19,9 @@ use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
  */
 final class TimelineProviderTest extends WebTestCase
 {
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testAnActivityIsShownOnTimeline(): never
     {
         $this->markTestSkipped('we have to write fixtures before writing this tests');
diff --git a/src/Bundle/ChillBudgetBundle/Tests/Controller/ElementControllerTest.php b/src/Bundle/ChillBudgetBundle/Tests/Controller/ElementControllerTest.php
index 925506a99..6cdafa2c3 100644
--- a/src/Bundle/ChillBudgetBundle/Tests/Controller/ElementControllerTest.php
+++ b/src/Bundle/ChillBudgetBundle/Tests/Controller/ElementControllerTest.php
@@ -19,6 +19,9 @@ use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
  */
 final class ElementControllerTest extends WebTestCase
 {
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testIndex()
     {
         $client = self::createClient();
@@ -26,6 +29,9 @@ final class ElementControllerTest extends WebTestCase
         $crawler = $client->request('GET', '/index');
     }
 
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testList()
     {
         $client = self::createClient();
diff --git a/src/Bundle/ChillDocStoreBundle/Tests/StoredObjectManagerTest.php b/src/Bundle/ChillDocStoreBundle/Tests/StoredObjectManagerTest.php
index 354a301e8..4ab576f75 100644
--- a/src/Bundle/ChillDocStoreBundle/Tests/StoredObjectManagerTest.php
+++ b/src/Bundle/ChillDocStoreBundle/Tests/StoredObjectManagerTest.php
@@ -169,9 +169,7 @@ final class StoredObjectManagerTest extends TestCase
         $response = new stdClass();
         $response->url = $storedObject->getFilename();
 
-        $tempUrlGenerator = $this
-            ->getMockBuilder(TempUrlGeneratorInterface::class)
-            ->getMock();
+        $tempUrlGenerator = $this->createMock(TempUrlGeneratorInterface::class);
 
         $tempUrlGenerator
             ->method('generate')
diff --git a/src/Bundle/ChillEventBundle/Tests/Controller/EventControllerTest.php b/src/Bundle/ChillEventBundle/Tests/Controller/EventControllerTest.php
index cece09a99..a7e316d5d 100644
--- a/src/Bundle/ChillEventBundle/Tests/Controller/EventControllerTest.php
+++ b/src/Bundle/ChillEventBundle/Tests/Controller/EventControllerTest.php
@@ -19,6 +19,9 @@ use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
  */
 final class EventControllerTest extends WebTestCase
 {
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testSkipped(): never
     {
         $this->markTestSkipped();
diff --git a/src/Bundle/ChillEventBundle/Tests/Controller/EventTypeControllerTest.php b/src/Bundle/ChillEventBundle/Tests/Controller/EventTypeControllerTest.php
index 8e351066d..d5fec449c 100644
--- a/src/Bundle/ChillEventBundle/Tests/Controller/EventTypeControllerTest.php
+++ b/src/Bundle/ChillEventBundle/Tests/Controller/EventTypeControllerTest.php
@@ -19,6 +19,9 @@ use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
  */
 final class EventTypeControllerTest extends WebTestCase
 {
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testSkipped(): never
     {
         $this->markTestSkipped();
diff --git a/src/Bundle/ChillEventBundle/Tests/Controller/RoleControllerTest.php b/src/Bundle/ChillEventBundle/Tests/Controller/RoleControllerTest.php
index 3839a1647..aaa7fad5a 100644
--- a/src/Bundle/ChillEventBundle/Tests/Controller/RoleControllerTest.php
+++ b/src/Bundle/ChillEventBundle/Tests/Controller/RoleControllerTest.php
@@ -19,6 +19,9 @@ use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
  */
 final class RoleControllerTest extends WebTestCase
 {
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testSkipped(): never
     {
         $this->markTestSkipped();
diff --git a/src/Bundle/ChillEventBundle/Tests/Controller/StatusControllerTest.php b/src/Bundle/ChillEventBundle/Tests/Controller/StatusControllerTest.php
index e573edaab..7a35a0a3f 100644
--- a/src/Bundle/ChillEventBundle/Tests/Controller/StatusControllerTest.php
+++ b/src/Bundle/ChillEventBundle/Tests/Controller/StatusControllerTest.php
@@ -19,6 +19,9 @@ use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
  */
 final class StatusControllerTest extends WebTestCase
 {
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testSkipped(): never
     {
         $this->markTestSkipped();
diff --git a/src/Bundle/ChillMainBundle/Test/Export/AbstractExportTest.php b/src/Bundle/ChillMainBundle/Test/Export/AbstractExportTest.php
index 6c908246b..342236a6c 100644
--- a/src/Bundle/ChillMainBundle/Test/Export/AbstractExportTest.php
+++ b/src/Bundle/ChillMainBundle/Test/Export/AbstractExportTest.php
@@ -348,7 +348,7 @@ abstract class AbstractExportTest extends WebTestCase
             $client->getResponse()->isSuccessful(),
             'test that the response of /fr/exports/ is successful'
         );
-        $this->assertContains(
+        $this->assertStringContainsString(
             $title,
             $crawler->text(),
             'test that the page /fr/exports/ contains the title of the '
diff --git a/src/Bundle/ChillMainBundle/Tests/Controller/PermissionsGroupControllerTest.php b/src/Bundle/ChillMainBundle/Tests/Controller/PermissionsGroupControllerTest.php
index 1c2ffe4d3..adec9119e 100644
--- a/src/Bundle/ChillMainBundle/Tests/Controller/PermissionsGroupControllerTest.php
+++ b/src/Bundle/ChillMainBundle/Tests/Controller/PermissionsGroupControllerTest.php
@@ -19,6 +19,9 @@ use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
  */
 final class PermissionsGroupControllerTest extends WebTestCase
 {
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testEmpty(): never
     {
         $this->markTestSkipped();
diff --git a/src/Bundle/ChillMainBundle/Tests/Search/AbstractSearchTest.php b/src/Bundle/ChillMainBundle/Tests/Search/AbstractSearchTest.php
index aada1b929..c80571aea 100644
--- a/src/Bundle/ChillMainBundle/Tests/Search/AbstractSearchTest.php
+++ b/src/Bundle/ChillMainBundle/Tests/Search/AbstractSearchTest.php
@@ -38,6 +38,9 @@ final class AbstractSearchTest extends \PHPUnit\Framework\TestCase
         $this->assertEquals('01', $date->format('d'));
     }
 
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testRecompose(): never
     {
         $this->markTestSkipped();
diff --git a/src/Bundle/ChillPersonBundle/Tests/AccompanyingPeriod/AccompanyingPeriodConfidentialTest.php b/src/Bundle/ChillPersonBundle/Tests/AccompanyingPeriod/AccompanyingPeriodConfidentialTest.php
index 98345a0b4..0dd689d6d 100644
--- a/src/Bundle/ChillPersonBundle/Tests/AccompanyingPeriod/AccompanyingPeriodConfidentialTest.php
+++ b/src/Bundle/ChillPersonBundle/Tests/AccompanyingPeriod/AccompanyingPeriodConfidentialTest.php
@@ -40,6 +40,9 @@ final class AccompanyingPeriodConfidentialTest extends WebTestCase
         ]);
     }
 
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testConfidentialInvalid()
     {
         $this->markTestSkipped("test not written fully");
diff --git a/src/Bundle/ChillReportBundle/Tests/Controller/ReportControllerTest.php b/src/Bundle/ChillReportBundle/Tests/Controller/ReportControllerTest.php
index b94a1d2f3..bd45d9048 100644
--- a/src/Bundle/ChillReportBundle/Tests/Controller/ReportControllerTest.php
+++ b/src/Bundle/ChillReportBundle/Tests/Controller/ReportControllerTest.php
@@ -250,7 +250,7 @@ final class ReportControllerTest extends WebTestCase
             $link,
             'There is a "add a report" link in menu'
         );
-        $this->assertContains(
+        $this->assertStringContainsString(
             sprintf(
                 '/fr/person/%d/report/select/type/for/creation',
                 self::$person->getId()
diff --git a/src/Bundle/ChillReportBundle/Tests/DependencyInjection/ChillReportExtensionTest.php b/src/Bundle/ChillReportBundle/Tests/DependencyInjection/ChillReportExtensionTest.php
index e480ca960..b8a4e6eb6 100644
--- a/src/Bundle/ChillReportBundle/Tests/DependencyInjection/ChillReportExtensionTest.php
+++ b/src/Bundle/ChillReportBundle/Tests/DependencyInjection/ChillReportExtensionTest.php
@@ -23,6 +23,9 @@ final class ChillReportExtensionTest extends KernelTestCase
     /*
      * Check if class Chill\ReportBundle\Entity\Report is in chill_custom_fields.customizables_entities
      */
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testDeclareReportAsCustomizable()
     {
         self::bootKernel(['environment' => 'test']);
diff --git a/src/Bundle/ChillReportBundle/Tests/Search/ReportSearchTest.php b/src/Bundle/ChillReportBundle/Tests/Search/ReportSearchTest.php
index b87902ef7..ec47d1357 100644
--- a/src/Bundle/ChillReportBundle/Tests/Search/ReportSearchTest.php
+++ b/src/Bundle/ChillReportBundle/Tests/Search/ReportSearchTest.php
@@ -96,9 +96,9 @@ final class ReportSearchTest extends WebTestCase
         $crawlerSocial = $clientSocial->request('GET', '/fr/search', $params);
         $crawlerAdministrative = $clientAdministrative->request('GET', '/fr/search', $params);
 
-        $this->assertNotContains('social', $crawlerAdministrative->filter('.content')
+        $this->assertStringNotContainsString('social', $crawlerAdministrative->filter('.content')
             ->text());
-        $this->assertNotContains('administrative', $crawlerAdministrative->filter('.content')
+        $this->assertStringNotContainsString('administrative', $crawlerAdministrative->filter('.content')
             ->text());
     }
 
diff --git a/src/Bundle/ChillReportBundle/Tests/Timeline/TimelineProviderTest.php b/src/Bundle/ChillReportBundle/Tests/Timeline/TimelineProviderTest.php
index 22e8d9e38..6c4ac1d10 100644
--- a/src/Bundle/ChillReportBundle/Tests/Timeline/TimelineProviderTest.php
+++ b/src/Bundle/ChillReportBundle/Tests/Timeline/TimelineProviderTest.php
@@ -123,7 +123,7 @@ final class TimelineProviderTest extends WebTestCase
             $client->getResponse()->isSuccessful(),
             'The page timeline is loaded successfully'
         );
-        $this->assertContains(
+        $this->assertStringContainsString(
             'a ajouté un rapport',
             $crawler->text(),
             'the page contains the text "a publié un rapport"'
diff --git a/src/Bundle/ChillThirdPartyBundle/Tests/Controller/ThirdPartyControllerTest.php b/src/Bundle/ChillThirdPartyBundle/Tests/Controller/ThirdPartyControllerTest.php
index e62e0772e..ca4cc2783 100644
--- a/src/Bundle/ChillThirdPartyBundle/Tests/Controller/ThirdPartyControllerTest.php
+++ b/src/Bundle/ChillThirdPartyBundle/Tests/Controller/ThirdPartyControllerTest.php
@@ -19,6 +19,9 @@ use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
  */
 final class ThirdPartyControllerTest extends WebTestCase
 {
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testIndex()
     {
         $client = self::createClient();
@@ -26,6 +29,9 @@ final class ThirdPartyControllerTest extends WebTestCase
         $crawler = $client->request('GET', '/index');
     }
 
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testNew()
     {
         $client = self::createClient();
@@ -33,6 +39,9 @@ final class ThirdPartyControllerTest extends WebTestCase
         $crawler = $client->request('GET', '/new');
     }
 
+    /**
+     * @doesNotPerformAssertions
+     */
     public function testUpdate()
     {
         $client = self::createClient();