--- /dev/null
+<?php
+
+namespace Drupal\Tests\content_translation\Functional;
+
+use Drupal\Core\Url;
+use Drupal\language\Entity\ConfigurableLanguage;
+
+/**
+ * Tests the "Flag as outdated" functionality with revision translations.
+ *
+ * @group content_translation
+ */
+class ContentTranslationOutdatedRevisionTranslationTest extends ContentTranslationPendingRevisionTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+ $this->enableContentModeration();
+ }
+
+ /**
+ * Tests that outdated revision translations work correctly.
+ */
+ public function testFlagAsOutdatedHidden() {
+ // Create a test node.
+ $values = [
+ 'title' => 'Test 1.1 EN',
+ 'moderation_state' => 'published',
+ ];
+ $id = $this->createEntity($values, 'en');
+ /** @var \Drupal\Core\Entity\ContentEntityInterface $entity */
+ $entity = $this->storage->load($id);
+
+ // Add a published Italian translation.
+ $add_translation_url = Url::fromRoute("entity.{$this->entityTypeId}.content_translation_add", [
+ $entity->getEntityTypeId() => $id,
+ 'source' => 'en',
+ 'target' => 'it',
+ ],
+ [
+ 'language' => ConfigurableLanguage::load('it'),
+ 'absolute' => FALSE,
+ ]
+ );
+ $this->drupalGet($add_translation_url);
+ $this->assertFlagWidget();
+ $edit = [
+ 'title[0][value]' => 'Test 1.2 IT',
+ 'moderation_state[0][state]' => 'published',
+ ];
+ $this->drupalPostForm(NULL, $edit, t('Save (this translation)'));
+
+ // Add a published French translation.
+ $add_translation_url = Url::fromRoute("entity.{$this->entityTypeId}.content_translation_add", [
+ $entity->getEntityTypeId() => $id,
+ 'source' => 'en',
+ 'target' => 'fr',
+ ],
+ [
+ 'language' => ConfigurableLanguage::load('fr'),
+ 'absolute' => FALSE,
+ ]
+ );
+ $this->drupalGet($add_translation_url);
+ $this->assertFlagWidget();
+ $edit = [
+ 'title[0][value]' => 'Test 1.3 FR',
+ 'moderation_state[0][state]' => 'published',
+ ];
+ $this->drupalPostForm(NULL, $edit, t('Save (this translation)'));
+
+ // Create an English draft.
+ $entity = $this->storage->loadUnchanged($id);
+ $en_edit_url = $this->getEditUrl($entity);
+ $this->drupalGet($en_edit_url);
+ $this->assertFlagWidget();
+ }
+
+ /**
+ * Checks whether the flag widget is displayed.
+ */
+ protected function assertFlagWidget() {
+ $this->assertSession()->pageTextNotContains('Flag other translations as outdated');
+ $this->assertSession()->pageTextContains('Translations cannot be flagged as outdated when content is moderated.');
+ }
+
+}