loadRevisionTranslation example

    );
    $add_translation_href = $add_translation_url->toString();
    $this->drupalGet($add_translation_url);
    $edit = [
      'title[0][value]' => "Test $index.2 IT",
      'moderation_state[0][state]' => 'draft',
    ];
    $this->submitForm($edit, 'Save (this translation)');
    $entity = $this->storage->loadUnchanged($id);
    $this->assertFalse($entity->hasTranslation('it'));
    $it_revision = $this->loadRevisionTranslation($entity, 'it');
    $this->assertTrue($it_revision->hasTranslation('it'));

    // Check that translations cannot be deleted in drafts.     $overview_url = $entity->toUrl('drupal:content-translation-overview');
    $this->drupalGet($overview_url);
    $it_delete_url = $this->getDeleteUrl($it_revision);
    $it_delete_href = $it_delete_url->toString();
    $this->assertSession()->linkByHrefNotExists($it_delete_href);
    $warning = 'The "Delete translation" action is only available for published translations.';
    $this->assertSession()->statusMessageContains($warning, 'warning');
    $this->drupalGet($this->getEditUrl($it_revision));