X-Git-Url: http://aleph1.co.uk/gitweb/?a=blobdiff_plain;f=web%2Fcore%2Fmodules%2Fcontent_moderation%2Ftests%2Fsrc%2FFunctional%2FModerationLocaleTest.php;h=1bdbb7e461104ace7cfed5877cc9c6eb54aa4500;hb=4f1b9b4ab48a8498afac9e2213a02a23ccf4a06c;hp=a9d95f0b9ff1ce83d22984a774ed96ef4427a472;hpb=a2bd1bf0c2c1f1a17d188f4dc0726a45494cefae;p=yaffs-website

diff --git a/web/core/modules/content_moderation/tests/src/Functional/ModerationLocaleTest.php b/web/core/modules/content_moderation/tests/src/Functional/ModerationLocaleTest.php
index a9d95f0b9..1bdbb7e46 100644
--- a/web/core/modules/content_moderation/tests/src/Functional/ModerationLocaleTest.php
+++ b/web/core/modules/content_moderation/tests/src/Functional/ModerationLocaleTest.php
@@ -2,6 +2,8 @@
 
 namespace Drupal\Tests\content_moderation\Functional;
 
+use Drupal\node\NodeInterface;
+
 /**
  * Test content_moderation functionality with localization and translation.
  *
@@ -22,19 +24,23 @@ class ModerationLocaleTest extends ModerationStateTestBase {
   ];
 
   /**
-   * Tests article translations can be moderated separately.
+   * {@inheritdoc}
    */
-  public function testTranslateModeratedContent() {
+  protected function setUp() {
+    parent::setUp();
+
     $this->drupalLogin($this->rootUser);
 
     // Enable moderation on Article node type.
     $this->createContentTypeFromUi('Article', 'article', TRUE);
 
-    // Add French language.
-    $edit = [
-      'predefined_langcode' => 'fr',
-    ];
-    $this->drupalPostForm('admin/config/regional/language/add', $edit, t('Add language'));
+    // Add French and Italian languages.
+    foreach (['fr', 'it'] as $langcode) {
+      $edit = [
+        'predefined_langcode' => $langcode,
+      ];
+      $this->drupalPostForm('admin/config/regional/language/add', $edit, t('Add language'));
+    }
 
     // Enable content translation on articles.
     $this->drupalGet('admin/config/regional/content-language');
@@ -48,13 +54,19 @@ class ModerationLocaleTest extends ModerationStateTestBase {
     // Adding languages requires a container rebuild in the test running
     // environment so that multilingual services are used.
     $this->rebuildContainer();
+  }
 
+  /**
+   * Tests article translations can be moderated separately.
+   */
+  public function testTranslateModeratedContent() {
     // Create a published article in English.
     $edit = [
       'title[0][value]' => 'Published English node',
       'langcode[0][value]' => 'en',
+      'moderation_state[0][state]' => 'published',
     ];
-    $this->drupalPostForm('node/add/article', $edit, t('Save and Publish'));
+    $this->drupalPostForm('node/add/article', $edit, t('Save'));
     $this->assertText(t('Article Published English node has been created.'));
     $english_node = $this->drupalGetNodeByTitle('Published English node');
 
@@ -63,8 +75,9 @@ class ModerationLocaleTest extends ModerationStateTestBase {
     $this->clickLink(t('Add'));
     $edit = [
       'title[0][value]' => 'French node Draft',
+      'moderation_state[0][state]' => 'draft',
     ];
-    $this->drupalPostForm(NULL, $edit, t('Save and Create New Draft (this translation)'));
+    $this->drupalPostForm(NULL, $edit, t('Save (this translation)'));
     // Here the error has occurred "The website encountered an unexpected error.
     // Please try again later."
     // If the translation has got lost.
@@ -74,8 +87,9 @@ class ModerationLocaleTest extends ModerationStateTestBase {
     $edit = [
       'title[0][value]' => 'English node',
       'langcode[0][value]' => 'en',
+      'moderation_state[0][state]' => 'draft',
     ];
-    $this->drupalPostForm('node/add/article', $edit, t('Save and Create New Draft'));
+    $this->drupalPostForm('node/add/article', $edit, t('Save'));
     $this->assertText(t('Article English node has been created.'));
     $english_node = $this->drupalGetNodeByTitle('English node');
 
@@ -84,14 +98,17 @@ class ModerationLocaleTest extends ModerationStateTestBase {
     $this->clickLink(t('Add'));
     $edit = [
       'title[0][value]' => 'French node',
+      'moderation_state[0][state]' => 'draft',
     ];
-    $this->drupalPostForm(NULL, $edit, t('Save and Create New Draft (this translation)'));
+    $this->drupalPostForm(NULL, $edit, t('Save (this translation)'));
     $this->assertText(t('Article French node has been updated.'));
     $english_node = $this->drupalGetNodeByTitle('English node', TRUE);
 
     // Publish the English article and check that the translation stays
     // unpublished.
-    $this->drupalPostForm('node/' . $english_node->id() . '/edit', [], t('Save and Publish (this translation)'));
+    $this->drupalPostForm('node/' . $english_node->id() . '/edit', [
+      'moderation_state[0][state]' => 'published',
+    ], t('Save (this translation)'));
     $this->assertText(t('Article English node has been updated.'));
     $english_node = $this->drupalGetNodeByTitle('English node', TRUE);
     $french_node = $english_node->getTranslation('fr');
@@ -106,8 +123,9 @@ class ModerationLocaleTest extends ModerationStateTestBase {
     // the translation first.
     $edit = [
       'title[0][value]' => 'Another node',
+      'moderation_state[0][state]' => 'draft',
     ];
-    $this->drupalPostForm('node/add/article', $edit, t('Save and Create New Draft'));
+    $this->drupalPostForm('node/add/article', $edit, t('Save'));
     $this->assertText(t('Article Another node has been created.'));
     $english_node = $this->drupalGetNodeByTitle('Another node');
 
@@ -116,14 +134,17 @@ class ModerationLocaleTest extends ModerationStateTestBase {
     $this->clickLink(t('Add'));
     $edit = [
       'title[0][value]' => 'Translated node',
+      'moderation_state[0][state]' => 'draft',
     ];
-    $this->drupalPostForm(NULL, $edit, t('Save and Create New Draft (this translation)'));
+    $this->drupalPostForm(NULL, $edit, t('Save (this translation)'));
     $this->assertText(t('Article Translated node has been updated.'));
     $english_node = $this->drupalGetNodeByTitle('Another node', TRUE);
 
     // Publish the translation and check that the source language version stays
     // unpublished.
-    $this->drupalPostForm('fr/node/' . $english_node->id() . '/edit', [], t('Save and Publish (this translation)'));
+    $this->drupalPostForm('fr/node/' . $english_node->id() . '/edit', [
+      'moderation_state[0][state]' => 'published',
+    ], t('Save (this translation)'));
     $this->assertText(t('Article Translated node has been updated.'));
     $english_node = $this->drupalGetNodeByTitle('Another node', TRUE);
     $french_node = $english_node->getTranslation('fr');
@@ -135,8 +156,9 @@ class ModerationLocaleTest extends ModerationStateTestBase {
     // Now check that we can create a new draft of the translation.
     $edit = [
       'title[0][value]' => 'New draft of translated node',
+      'moderation_state[0][state]' => 'draft',
     ];
-    $this->drupalPostForm('fr/node/' . $english_node->id() . '/edit', $edit, t('Save and Create New Draft (this translation)'));
+    $this->drupalPostForm('fr/node/' . $english_node->id() . '/edit', $edit, t('Save (this translation)'));
     $this->assertText(t('Article New draft of translated node has been updated.'));
     $english_node = $this->drupalGetNodeByTitle('Another node', TRUE);
     $french_node = $english_node->getTranslation('fr');
@@ -144,12 +166,11 @@ class ModerationLocaleTest extends ModerationStateTestBase {
     $this->assertTrue($french_node->isPublished());
     $this->assertEqual($french_node->getTitle(), 'Translated node', 'The default revision of the published translation remains the same.');
 
-    // Publish the draft.
-    $edit = [
-      'new_state' => 'published',
-    ];
-    $this->drupalPostForm('fr/node/' . $english_node->id() . '/latest', $edit, t('Apply'));
-    $this->assertText(t('The moderation state has been updated.'));
+    // Publish the French article before testing the archive transition.
+    $this->drupalPostForm('fr/node/' . $english_node->id() . '/edit', [
+      'moderation_state[0][state]' => 'published',
+    ], t('Save (this translation)'));
+    $this->assertText(t('Article New draft of translated node has been updated.'));
     $english_node = $this->drupalGetNodeByTitle('Another node', TRUE);
     $french_node = $english_node->getTranslation('fr');
     $this->assertEqual($french_node->moderation_state->value, 'published');
@@ -157,15 +178,21 @@ class ModerationLocaleTest extends ModerationStateTestBase {
     $this->assertEqual($french_node->getTitle(), 'New draft of translated node', 'The draft has replaced the published revision.');
 
     // Publish the English article before testing the archive transition.
-    $this->drupalPostForm('node/' . $english_node->id() . '/edit', [], t('Save and Publish (this translation)'));
+    $this->drupalPostForm('node/' . $english_node->id() . '/edit', [
+      'moderation_state[0][state]' => 'published',
+    ], t('Save (this translation)'));
     $this->assertText(t('Article Another node has been updated.'));
     $english_node = $this->drupalGetNodeByTitle('Another node', TRUE);
     $this->assertEqual($english_node->moderation_state->value, 'published');
 
     // Archive the node and its translation.
-    $this->drupalPostForm('node/' . $english_node->id() . '/edit', [], t('Save and Archive (this translation)'));
+    $this->drupalPostForm('node/' . $english_node->id() . '/edit', [
+      'moderation_state[0][state]' => 'archived',
+    ], t('Save (this translation)'));
     $this->assertText(t('Article Another node has been updated.'));
-    $this->drupalPostForm('fr/node/' . $english_node->id() . '/edit', [], t('Save and Archive (this translation)'));
+    $this->drupalPostForm('fr/node/' . $english_node->id() . '/edit', [
+      'moderation_state[0][state]' => 'archived',
+    ], t('Save (this translation)'));
     $this->assertText(t('Article New draft of translated node has been updated.'));
     $english_node = $this->drupalGetNodeByTitle('Another node', TRUE);
     $french_node = $english_node->getTranslation('fr');
@@ -173,43 +200,363 @@ class ModerationLocaleTest extends ModerationStateTestBase {
     $this->assertFalse($english_node->isPublished());
     $this->assertEqual($french_node->moderation_state->value, 'archived');
     $this->assertFalse($french_node->isPublished());
+  }
 
-    // Create another article with its translation. This time publishing english
-    // after creating a forward french revision.
-    $edit = [
-      'title[0][value]' => 'An english node',
-    ];
-    $this->drupalPostForm('node/add/article', $edit, t('Save and Create New Draft'));
-    $this->assertText(t('Article An english node has been created.'));
-    $english_node = $this->drupalGetNodeByTitle('An english node');
-    $this->assertFalse($english_node->isPublished());
+  /**
+   * Tests that individual translations can be moderated independently.
+   */
+  public function testLanguageIndependentContentModeration() {
+    // Create a published article in English (revision 1).
+    $this->drupalGet('node/add/article');
+    $node = $this->submitNodeForm('Test 1.1 EN', 'published');
+    $this->assertNotLatestVersionPage($node);
 
-    // Add a French translation.
-    $this->drupalGet('node/' . $english_node->id() . '/translations');
+    $edit_path = $node->toUrl('edit-form');
+    $translate_path = $node->toUrl('drupal:content-translation-overview');
+
+    // Create a new English draft (revision 2).
+    $this->drupalGet($edit_path);
+    $this->submitNodeForm('Test 1.2 EN', 'draft', TRUE);
+    $this->assertLatestVersionPage($node);
+
+    // Add a French translation draft (revision 3).
+    $this->drupalGet($translate_path);
+    $this->clickLink(t('Add'));
+    $this->submitNodeForm('Test 1.3 FR', 'draft');
+    $fr_node = $this->loadTranslation($node, 'fr');
+    $this->assertLatestVersionPage($fr_node);
+    $this->assertModerationForm($node);
+
+    // Add an Italian translation draft (revision 4).
+    $this->drupalGet($translate_path);
     $this->clickLink(t('Add'));
+    $this->submitNodeForm('Test 1.4 IT', 'draft');
+    $it_node = $this->loadTranslation($node, 'it');
+    $this->assertLatestVersionPage($it_node);
+    $this->assertModerationForm($node);
+    $this->assertModerationForm($fr_node);
+
+    // Publish the English draft (revision 5).
+    $this->drupalGet($edit_path);
+    $this->submitNodeForm('Test 1.5 EN', 'published', TRUE);
+    $this->assertNotLatestVersionPage($node);
+    $this->assertModerationForm($fr_node);
+    $this->assertModerationForm($it_node);
+
+    // Publish the Italian draft (revision 6).
+    $this->drupalGet($translate_path);
+    $this->clickLink(t('Edit'), 2);
+    $this->submitNodeForm('Test 1.6 IT', 'published');
+    $this->assertNotLatestVersionPage($it_node);
+    $this->assertNoModerationForm($node);
+    $this->assertModerationForm($fr_node);
+
+    // Publish the French draft (revision 7).
+    $this->drupalGet($translate_path);
+    $this->clickLink(t('Edit'), 1);
+    $this->submitNodeForm('Test 1.7 FR', 'published');
+    $this->assertNotLatestVersionPage($fr_node);
+    $this->assertNoModerationForm($node);
+    $this->assertNoModerationForm($it_node);
+
+    // Create an Italian draft (revision 8).
+    $this->drupalGet($translate_path);
+    $this->clickLink(t('Edit'), 2);
+    $this->submitNodeForm('Test 1.8 IT', 'draft');
+    $this->assertLatestVersionPage($it_node);
+    $this->assertNoModerationForm($node);
+    $this->assertNoModerationForm($fr_node);
+
+    // Create a French draft (revision 9).
+    $this->drupalGet($translate_path);
+    $this->clickLink(t('Edit'), 1);
+    $this->submitNodeForm('Test 1.9 FR', 'draft');
+    $this->assertLatestVersionPage($fr_node);
+    $this->assertNoModerationForm($node);
+    $this->assertModerationForm($it_node);
+
+    // Create an English draft (revision 10).
+    $this->drupalGet($edit_path);
+    $this->submitNodeForm('Test 1.10 EN', 'draft');
+    $this->assertLatestVersionPage($node);
+    $this->assertModerationForm($fr_node);
+    $this->assertModerationForm($it_node);
+
+    // Now start from a draft article in English (revision 1).
+    $this->drupalGet('node/add/article');
+    $node2 = $this->submitNodeForm('Test 2.1 EN', 'draft', TRUE);
+    $this->assertNotLatestVersionPage($node2, TRUE);
+
+    $edit_path = $node2->toUrl('edit-form');
+    $translate_path = $node2->toUrl('drupal:content-translation-overview');
+
+    // Add a French translation (revision 2).
+    $this->drupalGet($translate_path);
+    $this->clickLink(t('Add'));
+    $this->submitNodeForm('Test 2.2 FR', 'draft');
+    $fr_node2 = $this->loadTranslation($node2, 'fr');
+    $this->assertNotLatestVersionPage($fr_node2, TRUE);
+    $this->assertModerationForm($node2, FALSE);
+
+    // Add an Italian translation (revision 3).
+    $this->drupalGet($translate_path);
+    $this->clickLink(t('Add'));
+    $this->submitNodeForm('Test 2.3 IT', 'draft');
+    $it_node2 = $this->loadTranslation($node2, 'it');
+    $this->assertNotLatestVersionPage($it_node2, TRUE);
+    $this->assertModerationForm($node2, FALSE);
+    $this->assertModerationForm($fr_node2, FALSE);
+
+    // Publish the English draft (revision 4).
+    $this->drupalGet($edit_path);
+    $this->submitNodeForm('Test 2.4 EN', 'published', TRUE);
+    $this->assertNotLatestVersionPage($node2);
+    $this->assertModerationForm($fr_node2, FALSE);
+    $this->assertModerationForm($it_node2, FALSE);
+
+    // Publish the Italian draft (revision 5).
+    $this->drupalGet($translate_path);
+    $this->clickLink(t('Edit'), 2);
+    $this->submitNodeForm('Test 2.5 IT', 'published');
+    $this->assertNotLatestVersionPage($it_node2);
+    $this->assertNoModerationForm($node2);
+    $this->assertModerationForm($fr_node2, FALSE);
+
+    // Publish the French draft (revision 6).
+    $this->drupalGet($translate_path);
+    $this->clickLink(t('Edit'), 1);
+    $this->submitNodeForm('Test 2.6 FR', 'published');
+    $this->assertNotLatestVersionPage($fr_node2);
+    $this->assertNoModerationForm($node2);
+    $this->assertNoModerationForm($it_node2);
+
+    // Now that all revision translations are published, verify that the
+    // moderation form is never displayed on revision pages.
+    /** @var \Drupal\node\NodeStorageInterface $storage */
+    $storage = $this->container->get('entity_type.manager')->getStorage('node');
+    foreach (range(11, 16) as $revision_id) {
+      /** @var \Drupal\node\NodeInterface $revision */
+      $revision = $storage->loadRevision($revision_id);
+      foreach ($revision->getTranslationLanguages() as $langcode => $language) {
+        if ($revision->isRevisionTranslationAffected()) {
+          $this->drupalGet($revision->toUrl('revision'));
+          $this->assertFalse($this->hasModerationForm(), 'Moderation form is not displayed correctly for revision ' . $revision_id);
+          break;
+        }
+      }
+    }
+
+    // Create an Italian draft (revision 7).
+    $this->drupalGet($translate_path);
+    $this->clickLink(t('Edit'), 2);
+    $this->submitNodeForm('Test 2.7 IT', 'draft');
+    $this->assertLatestVersionPage($it_node2);
+    $this->assertNoModerationForm($node2);
+    $this->assertNoModerationForm($fr_node2);
+
+    // Create a French draft (revision 8).
+    $this->drupalGet($translate_path);
+    $this->clickLink(t('Edit'), 1);
+    $this->submitNodeForm('Test 2.8 FR', 'draft');
+    $this->assertLatestVersionPage($fr_node2);
+    $this->assertNoModerationForm($node2);
+    $this->assertModerationForm($it_node2);
+
+    // Create an English draft (revision 9).
+    $this->drupalGet($edit_path);
+    $this->submitNodeForm('Test 2.9 EN', 'draft', TRUE);
+    $this->assertLatestVersionPage($node2);
+    $this->assertModerationForm($fr_node2);
+    $this->assertModerationForm($it_node2);
+
+    // Now publish a draft in another language first and verify that the
+    // moderation form is not displayed on the English node view page.
+    $this->drupalGet('node/add/article');
+    $node3 = $this->submitNodeForm('Test 3.1 EN', 'published');
+    $this->assertNotLatestVersionPage($node3);
+
+    $edit_path = $node3->toUrl('edit-form');
+    $translate_path = $node3->toUrl('drupal:content-translation-overview');
+
+    // Create an English draft (revision 2).
+    $this->drupalGet($edit_path);
+    $this->submitNodeForm('Test 3.2 EN', 'draft', TRUE);
+    $this->assertLatestVersionPage($node3);
+
+    // Add a French translation (revision 3).
+    $this->drupalGet($translate_path);
+    $this->clickLink(t('Add'));
+    $this->submitNodeForm('Test 3.3 FR', 'draft');
+    $fr_node3 = $this->loadTranslation($node3, 'fr');
+    $this->assertLatestVersionPage($fr_node3);
+    $this->assertModerationForm($node3);
+
+    // Publish the French draft (revision 4).
+    $this->drupalGet($translate_path);
+    $this->clickLink(t('Edit'), 1);
+    $this->submitNodeForm('Test 3.4 FR', 'published');
+    $this->assertNotLatestVersionPage($fr_node3);
+    $this->assertModerationForm($node3);
+  }
+
+  /**
+   * Checks that new translation values are populated properly.
+   */
+  public function testNewTranslationSourceValues() {
+    // Create a published article in Italian (revision 1).
+    $this->drupalGet('node/add/article');
+    $node = $this->submitNodeForm('Test 1.1 IT', 'published', TRUE, 'it');
+    $this->assertNotLatestVersionPage($node);
+
+    // Create a new draft (revision 2).
+    $this->drupalGet($node->toUrl('edit-form'));
+    $this->submitNodeForm('Test 1.2 IT', 'draft', TRUE);
+    $this->assertLatestVersionPage($node);
+
+    // Create an English draft (revision 3) and verify that the Italian draft
+    // values are used as source values.
+    $url = $node->toUrl('drupal:content-translation-add');
+    $url->setRouteParameter('source', 'it');
+    $url->setRouteParameter('target', 'en');
+    $this->drupalGet($url);
+    $this->assertSession()->pageTextContains('Test 1.2 IT');
+    $this->submitNodeForm('Test 1.3 EN', 'draft');
+    $this->assertLatestVersionPage($node);
+
+    // Create a French draft (without saving) and verify that the Italian draft
+    // values are used as source values.
+    $url->setRouteParameter('target', 'fr');
+    $this->drupalGet($url);
+    $this->assertSession()->pageTextContains('Test 1.2 IT');
+
+    // Now switch source language and verify that the English draft values are
+    // used as source values.
+    $url->setRouteParameter('source', 'en');
+    $this->drupalGet($url);
+    $this->assertSession()->pageTextContains('Test 1.3 EN');
+  }
+
+  /**
+   * Submits the node form at the current URL with the specified values.
+   *
+   * @param string $title
+   *   The node title.
+   * @param string $moderation_state
+   *   The moderation state.
+   * @param bool $default_translation
+   *   (optional) Whether we are editing the default translation.
+   * @param string|null $langcode
+   *   (optional) The node language. Defaults to English.
+   *
+   * @return \Drupal\node\NodeInterface|null
+   *   A node object if a new one is being created, NULL otherwise.
+   */
+  protected function submitNodeForm($title, $moderation_state, $default_translation = FALSE, $langcode = 'en') {
+    $is_new = strpos($this->getSession()->getCurrentUrl(), '/node/add/') !== FALSE;
     $edit = [
-      'title[0][value]' => 'A french node',
+      'title[0][value]' => $title,
+      'moderation_state[0][state]' => $moderation_state,
     ];
-    $this->drupalPostForm(NULL, $edit, t('Save and Publish (this translation)'));
-    $english_node = $this->drupalGetNodeByTitle('An english node', TRUE);
-    $french_node = $english_node->getTranslation('fr');
-    $this->assertTrue($french_node->isPublished());
-    $this->assertFalse($english_node->isPublished());
+    if ($is_new) {
+      $default_translation = TRUE;
+      $edit['langcode[0][value]'] = $langcode;
+    }
+    $submit = $default_translation ? t('Save') : t('Save (this translation)');
+    $this->drupalPostForm(NULL, $edit, $submit);
+    $message = $is_new ? "Article $title has been created." : "Article $title has been updated.";
+    $this->assertSession()->pageTextContains($message);
+    return $is_new ? $this->drupalGetNodeByTitle($title) : NULL;
+  }
 
-    // Create a forward revision
-    $this->drupalPostForm('fr/node/' . $english_node->id() . '/edit', [], t('Save and Create New Draft (this translation)'));
-    $english_node = $this->drupalGetNodeByTitle('An english node', TRUE);
-    $french_node = $english_node->getTranslation('fr');
-    $this->assertTrue($french_node->isPublished());
-    $this->assertFalse($english_node->isPublished());
+  /**
+   * Loads the node translation for the specified language.
+   *
+   * @param \Drupal\node\NodeInterface $node
+   *   A node object.
+   * @param string $langcode
+   *   The translation language code.
+   *
+   * @return \Drupal\node\NodeInterface
+   *   The node translation object.
+   */
+  protected function loadTranslation(NodeInterface $node, $langcode) {
+    /** @var \Drupal\node\NodeStorageInterface $storage */
+    $storage = $this->container->get('entity_type.manager')->getStorage('node');
+    // Explicitly invalidate the cache for that node, as the call below is
+    // statically cached.
+    $storage->resetCache([$node->id()]);
+    /** @var \Drupal\node\NodeInterface $node */
+    $node = $storage->loadRevision($storage->getLatestRevisionId($node->id()));
+    return $node->getTranslation($langcode);
+  }
 
-    // Publish the english node and the default french node not the latest
-    // french node should be used.
-    $this->drupalPostForm('/node/' . $english_node->id() . '/edit', [], t('Save and Publish (this translation)'));
-    $english_node = $this->drupalGetNodeByTitle('An english node', TRUE);
-    $french_node = $english_node->getTranslation('fr');
-    $this->assertTrue($french_node->isPublished());
-    $this->assertTrue($english_node->isPublished());
+  /**
+   * Asserts that this is the "latest version" page for the specified node.
+   *
+   * @param \Drupal\node\NodeInterface $node
+   *   A node object.
+   */
+  public function assertLatestVersionPage(NodeInterface $node) {
+    $this->assertEquals($node->toUrl('latest-version')->setAbsolute()->toString(), $this->getSession()->getCurrentUrl());
+    $this->assertModerationForm($node);
+  }
+
+  /**
+   * Asserts that this is not the "latest version" page for the specified node.
+   *
+   * @param \Drupal\node\NodeInterface $node
+   *   A node object.
+   * @param bool $moderation_form
+   *   (optional) Whether the page should contain the moderation form. Defaults
+   *   to FALSE.
+   */
+  public function assertNotLatestVersionPage(NodeInterface $node, $moderation_form = FALSE) {
+    $this->assertNotEquals($node->toUrl('latest-version')->setAbsolute()->toString(), $this->getSession()->getCurrentUrl());
+    if ($moderation_form) {
+      $this->assertModerationForm($node, FALSE);
+    }
+    else {
+      $this->assertNoModerationForm($node);
+    }
+  }
+
+  /**
+   * Asserts that the moderation form is displayed for the specified node.
+   *
+   * @param \Drupal\node\NodeInterface $node
+   *   A node object.
+   * @param bool $latest_tab
+   *   (optional) Whether the node form is expected to be displayed on the
+   *   latest version page or on the node view page. Defaults to the former.
+   */
+  public function assertModerationForm(NodeInterface $node, $latest_tab = TRUE) {
+    $this->drupalGet($node->toUrl());
+    $this->assertEquals(!$latest_tab, $this->hasModerationForm());
+    $this->drupalGet($node->toUrl('latest-version'));
+    $this->assertEquals($latest_tab, $this->hasModerationForm());
+  }
+
+  /**
+   * Asserts that the moderation form is not displayed for the specified node.
+   *
+   * @param \Drupal\node\NodeInterface $node
+   *   A node object.
+   */
+  public function assertNoModerationForm(NodeInterface $node) {
+    $this->drupalGet($node->toUrl());
+    $this->assertFalse($this->hasModerationForm());
+    $this->drupalGet($node->toUrl('latest-version'));
+    $this->assertEquals(403, $this->getSession()->getStatusCode());
+  }
+
+  /**
+   * Checks whether the page contains the moderation form.
+   *
+   * @return bool
+   *   TRUE if the moderation form could be find in the page, FALSE otherwise.
+   */
+  public function hasModerationForm() {
+    return (bool) $this->xpath('//ul[@class="entity-moderation-form"]');
   }
 
 }