Issue #3417365 by kristiaanvandeneynde, smustgrave: Properly set current_user service in tests

(cherry picked from commit eb8cd5d6)

core/modules/media/tests/src/Kernel/MediaEmbedFilterDisabledIntegrationsTest.php

@@ -26,6 +26,7 @@ protected function setUp(): void {
     parent::setUp();
 
     $this->container->get('current_user')
+      ->getAccount()
       ->addRole($this->drupalCreateRole([
         'access contextual links',
       ]));

core/modules/media/tests/src/Kernel/MediaEmbedFilterTest.php

@@ -136,6 +136,7 @@ public function testAccessUnpublished($allowed_to_view_unpublished, $expected_re
     // Are we testing as a user who is allowed to view the embedded entity?
     if ($allowed_to_view_unpublished) {
       $this->container->get('current_user')
+        ->getAccount()
         ->addRole($this->drupalCreateRole(['view own unpublished media']));
     }
 

core/modules/media/tests/src/Kernel/MediaEmbedFilterTestBase.php

@@ -86,7 +86,7 @@ protected function setUp(): void {
       'access content',
       'view media',
     ]);
-    $this->container->set('current_user', $user);
+    $this->container->get('current_user')->setAccount($user);
 
     $this->image = File::create([
       'uri' => $this->getTestFiles('image')[0]->uri,

core/modules/user/tests/src/Kernel/UserAccountFormPasswordResetTest.php

@@ -41,7 +41,7 @@ protected function setUp(): void {
     $this->user->save();
 
     // Set current user.
-    $this->container->set('current_user', $this->user);
+    $this->container->get('current_user')->setAccount($this->user);
     // Install the router table and then rebuild.
     \Drupal::service('router.builder')->rebuild();
   }