--- /dev/null
+<?php
+
+namespace Drupal\Tests\node\Functional;
+
+use Drupal\Core\Url;
+use Drupal\field\Entity\FieldConfig;
+use Drupal\field\Entity\FieldStorageConfig;
+use Drupal\language\Entity\ConfigurableLanguage;
+use Drupal\node\Entity\Node;
+use Drupal\node\NodeInterface;
+use Drupal\Component\Serialization\Json;
+
+/**
+ * Create a node with revisions and test viewing, saving, reverting, and
+ * deleting revisions for users with access for this content type.
+ *
+ * @group node
+ */
+class NodeRevisionsTest extends NodeTestBase {
+
+ /**
+ * An array of node revisions.
+ *
+ * @var \Drupal\node\NodeInterface[]
+ */
+ protected $nodes;
+
+ /**
+ * Revision log messages.
+ *
+ * @var array
+ */
+ protected $revisionLogs;
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = ['node', 'contextual', 'datetime', 'language', 'content_translation'];
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+
+ // Enable additional languages.
+ ConfigurableLanguage::createFromLangcode('de')->save();
+ ConfigurableLanguage::createFromLangcode('it')->save();
+
+ $field_storage_definition = [
+ 'field_name' => 'untranslatable_string_field',
+ 'entity_type' => 'node',
+ 'type' => 'string',
+ 'cardinality' => 1,
+ 'translatable' => FALSE,
+ ];
+ $field_storage = FieldStorageConfig::create($field_storage_definition);
+ $field_storage->save();
+
+ $field_definition = [
+ 'field_storage' => $field_storage,
+ 'bundle' => 'page',
+ ];
+ $field = FieldConfig::create($field_definition);
+ $field->save();
+
+ // Enable translation for page nodes.
+ \Drupal::service('content_translation.manager')->setEnabled('node', 'page', TRUE);
+
+ // Create and log in user.
+ $web_user = $this->drupalCreateUser(
+ [
+ 'view page revisions',
+ 'revert page revisions',
+ 'delete page revisions',
+ 'edit any page content',
+ 'delete any page content',
+ 'access contextual links',
+ 'translate any entity',
+ 'administer content types',
+ ]
+ );
+
+ $this->drupalLogin($web_user);
+
+ // Create initial node.
+ $node = $this->drupalCreateNode();
+ $settings = get_object_vars($node);
+ $settings['revision'] = 1;
+ $settings['isDefaultRevision'] = TRUE;
+
+ $nodes = [];
+ $logs = [];
+
+ // Get original node.
+ $nodes[] = clone $node;
+
+ // Create three revisions.
+ $revision_count = 3;
+ for ($i = 0; $i < $revision_count; $i++) {
+ $logs[] = $node->revision_log = $this->randomMachineName(32);
+
+ // Create revision with a random title and body and update variables.
+ $node->title = $this->randomMachineName();
+ $node->body = [
+ 'value' => $this->randomMachineName(32),
+ 'format' => filter_default_format(),
+ ];
+ $node->untranslatable_string_field->value = $this->randomString();
+ $node->setNewRevision();
+
+ // Edit the 1st and 2nd revision with a different user.
+ if ($i < 2) {
+ $editor = $this->drupalCreateUser();
+ $node->setRevisionUserId($editor->id());
+ }
+ else {
+ $node->setRevisionUserId($web_user->id());
+ }
+
+ $node->save();
+
+ // Make sure we get revision information.
+ $node = Node::load($node->id());
+ $nodes[] = clone $node;
+ }
+
+ $this->nodes = $nodes;
+ $this->revisionLogs = $logs;
+ }
+
+ /**
+ * Checks node revision related operations.
+ */
+ public function testRevisions() {
+ $node_storage = $this->container->get('entity.manager')->getStorage('node');
+ $nodes = $this->nodes;
+ $logs = $this->revisionLogs;
+
+ // Get last node for simple checks.
+ $node = $nodes[3];
+
+ // Confirm the correct revision text appears on "view revisions" page.
+ $this->drupalGet("node/" . $node->id() . "/revisions/" . $node->getRevisionId() . "/view");
+ $this->assertText($node->body->value, 'Correct text displays for version.');
+
+ // Confirm the correct log message appears on "revisions overview" page.
+ $this->drupalGet("node/" . $node->id() . "/revisions");
+ foreach ($logs as $revision_log) {
+ $this->assertText($revision_log, 'Revision log message found.');
+ }
+ // Original author, and editor names should appear on revisions overview.
+ $web_user = $nodes[0]->revision_uid->entity;
+ $this->assertText(t('by @name', ['@name' => $web_user->getAccountName()]));
+ $editor = $nodes[2]->revision_uid->entity;
+ $this->assertText(t('by @name', ['@name' => $editor->getAccountName()]));
+
+ // Confirm that this is the default revision.
+ $this->assertTrue($node->isDefaultRevision(), 'Third node revision is the default one.');
+
+ // Confirm that revisions revert properly.
+ $this->drupalPostForm("node/" . $node->id() . "/revisions/" . $nodes[1]->getRevisionid() . "/revert", [], t('Revert'));
+ $this->assertRaw(t('@type %title has been reverted to the revision from %revision-date.', [
+ '@type' => 'Basic page',
+ '%title' => $nodes[1]->label(),
+ '%revision-date' => format_date($nodes[1]->getRevisionCreationTime()),
+ ]), 'Revision reverted.');
+ $node_storage->resetCache([$node->id()]);
+ $reverted_node = $node_storage->load($node->id());
+ $this->assertTrue(($nodes[1]->body->value == $reverted_node->body->value), 'Node reverted correctly.');
+ // Confirm the revision author is the user performing the revert.
+ $this->assertTrue($reverted_node->getRevisionUserId() == $this->loggedInUser->id(), 'Node revision author is user performing revert.');
+ // And that its not the revision author.
+ $this->assertTrue($reverted_node->getRevisionUserId() != $nodes[1]->getRevisionUserId(), 'Node revision author is not original revision author.');
+
+ // Confirm that this is not the default version.
+ $node = node_revision_load($node->getRevisionId());
+ $this->assertFalse($node->isDefaultRevision(), 'Third node revision is not the default one.');
+
+ // Confirm revisions delete properly.
+ $this->drupalPostForm("node/" . $node->id() . "/revisions/" . $nodes[1]->getRevisionId() . "/delete", [], t('Delete'));
+ $this->assertRaw(t('Revision from %revision-date of @type %title has been deleted.', [
+ '%revision-date' => format_date($nodes[1]->getRevisionCreationTime()),
+ '@type' => 'Basic page',
+ '%title' => $nodes[1]->label(),
+ ]), 'Revision deleted.');
+ $this->assertTrue(db_query('SELECT COUNT(vid) FROM {node_revision} WHERE nid = :nid and vid = :vid', [':nid' => $node->id(), ':vid' => $nodes[1]->getRevisionId()])->fetchField() == 0, 'Revision not found.');
+ $this->assertTrue(db_query('SELECT COUNT(vid) FROM {node_field_revision} WHERE nid = :nid and vid = :vid', [':nid' => $node->id(), ':vid' => $nodes[1]->getRevisionId()])->fetchField() == 0, 'Field revision not found.');
+
+ // Set the revision timestamp to an older date to make sure that the
+ // confirmation message correctly displays the stored revision date.
+ $old_revision_date = REQUEST_TIME - 86400;
+ db_update('node_revision')
+ ->condition('vid', $nodes[2]->getRevisionId())
+ ->fields([
+ 'revision_timestamp' => $old_revision_date,
+ ])
+ ->execute();
+ $this->drupalPostForm("node/" . $node->id() . "/revisions/" . $nodes[2]->getRevisionId() . "/revert", [], t('Revert'));
+ $this->assertRaw(t('@type %title has been reverted to the revision from %revision-date.', [
+ '@type' => 'Basic page',
+ '%title' => $nodes[2]->label(),
+ '%revision-date' => format_date($old_revision_date),
+ ]));
+
+ // Make a new revision and set it to not be default.
+ // This will create a new revision that is not "front facing".
+ $new_node_revision = clone $node;
+ $new_body = $this->randomMachineName();
+ $new_node_revision->body->value = $new_body;
+ // Save this as a non-default revision.
+ $new_node_revision->setNewRevision();
+ $new_node_revision->isDefaultRevision = FALSE;
+ $new_node_revision->save();
+
+ $this->drupalGet('node/' . $node->id());
+ $this->assertNoText($new_body, 'Revision body text is not present on default version of node.');
+
+ // Verify that the new body text is present on the revision.
+ $this->drupalGet("node/" . $node->id() . "/revisions/" . $new_node_revision->getRevisionId() . "/view");
+ $this->assertText($new_body, 'Revision body text is present when loading specific revision.');
+
+ // Verify that the non-default revision vid is greater than the default
+ // revision vid.
+ $default_revision = db_select('node', 'n')
+ ->fields('n', ['vid'])
+ ->condition('nid', $node->id())
+ ->execute()
+ ->fetchCol();
+ $default_revision_vid = $default_revision[0];
+ $this->assertTrue($new_node_revision->getRevisionId() > $default_revision_vid, 'Revision vid is greater than default revision vid.');
+
+ // Create an 'EN' node with a revision log message.
+ $node = $this->drupalCreateNode();
+ $node->title = 'Node title in EN';
+ $node->revision_log = 'Simple revision message (EN)';
+ $node->save();
+
+ $this->drupalGet("node/" . $node->id() . "/revisions");
+ $this->assertResponse(403);
+
+ // Create a new revision and new log message.
+ $node = Node::load($node->id());
+ $node->body->value = 'New text (EN)';
+ $node->revision_log = 'New revision message (EN)';
+ $node->setNewRevision();
+ $node->save();
+
+ // Check both revisions are shown on the node revisions overview page.
+ $this->drupalGet("node/" . $node->id() . "/revisions");
+ $this->assertText('Simple revision message (EN)');
+ $this->assertText('New revision message (EN)');
+
+ // Create an 'EN' node with a revision log message.
+ $node = $this->drupalCreateNode();
+ $node->langcode = 'en';
+ $node->title = 'Node title in EN';
+ $node->revision_log = 'Simple revision message (EN)';
+ $node->save();
+
+ $this->drupalGet("node/" . $node->id() . "/revisions");
+ $this->assertResponse(403);
+
+ // Add a translation in 'DE' and create a new revision and new log message.
+ $translation = $node->addTranslation('de');
+ $translation->title->value = 'Node title in DE';
+ $translation->body->value = 'New text (DE)';
+ $translation->revision_log = 'New revision message (DE)';
+ $translation->setNewRevision();
+ $translation->save();
+
+ // View the revision UI in 'IT', only the original node revision is shown.
+ $this->drupalGet("it/node/" . $node->id() . "/revisions");
+ $this->assertText('Simple revision message (EN)');
+ $this->assertNoText('New revision message (DE)');
+
+ // View the revision UI in 'DE', only the translated node revision is shown.
+ $this->drupalGet("de/node/" . $node->id() . "/revisions");
+ $this->assertNoText('Simple revision message (EN)');
+ $this->assertText('New revision message (DE)');
+
+ // View the revision UI in 'EN', only the original node revision is shown.
+ $this->drupalGet("node/" . $node->id() . "/revisions");
+ $this->assertText('Simple revision message (EN)');
+ $this->assertNoText('New revision message (DE)');
+ }
+
+ /**
+ * Checks that revisions are correctly saved without log messages.
+ */
+ public function testNodeRevisionWithoutLogMessage() {
+ $node_storage = $this->container->get('entity.manager')->getStorage('node');
+ // Create a node with an initial log message.
+ $revision_log = $this->randomMachineName(10);
+ $node = $this->drupalCreateNode(['revision_log' => $revision_log]);
+
+ // Save over the same revision and explicitly provide an empty log message
+ // (for example, to mimic the case of a node form submitted with no text in
+ // the "log message" field), and check that the original log message is
+ // preserved.
+ $new_title = $this->randomMachineName(10) . 'testNodeRevisionWithoutLogMessage1';
+
+ $node = clone $node;
+ $node->title = $new_title;
+ $node->revision_log = '';
+ $node->setNewRevision(FALSE);
+
+ $node->save();
+ $this->drupalGet('node/' . $node->id());
+ $this->assertText($new_title, 'New node title appears on the page.');
+ $node_storage->resetCache([$node->id()]);
+ $node_revision = $node_storage->load($node->id());
+ $this->assertEqual($node_revision->revision_log->value, $revision_log, 'After an existing node revision is re-saved without a log message, the original log message is preserved.');
+
+ // Create another node with an initial revision log message.
+ $node = $this->drupalCreateNode(['revision_log' => $revision_log]);
+
+ // Save a new node revision without providing a log message, and check that
+ // this revision has an empty log message.
+ $new_title = $this->randomMachineName(10) . 'testNodeRevisionWithoutLogMessage2';
+
+ $node = clone $node;
+ $node->title = $new_title;
+ $node->setNewRevision();
+ $node->revision_log = NULL;
+
+ $node->save();
+ $this->drupalGet('node/' . $node->id());
+ $this->assertText($new_title, 'New node title appears on the page.');
+ $node_storage->resetCache([$node->id()]);
+ $node_revision = $node_storage->load($node->id());
+ $this->assertTrue(empty($node_revision->revision_log->value), 'After a new node revision is saved with an empty log message, the log message for the node is empty.');
+ }
+
+ /**
+ * Gets server-rendered contextual links for the given contextual links IDs.
+ *
+ * @param string[] $ids
+ * An array of contextual link IDs.
+ * @param string $current_path
+ * The Drupal path for the page for which the contextual links are rendered.
+ *
+ * @return string
+ * The decoded JSON response body.
+ */
+ protected function renderContextualLinks(array $ids, $current_path) {
+ $post = [];
+ for ($i = 0; $i < count($ids); $i++) {
+ $post['ids[' . $i . ']'] = $ids[$i];
+ }
+ $response = $this->drupalPost('contextual/render', 'application/json', $post, ['query' => ['destination' => $current_path]]);
+
+ return Json::decode($response);
+ }
+
+ /**
+ * Tests the revision translations are correctly reverted.
+ */
+ public function testRevisionTranslationRevert() {
+ // Create a node and a few revisions.
+ $node = $this->drupalCreateNode(['langcode' => 'en']);
+
+ $initial_revision_id = $node->getRevisionId();
+ $initial_title = $node->label();
+ $this->createRevisions($node, 2);
+
+ // Translate the node and create a few translation revisions.
+ $translation = $node->addTranslation('it');
+ $this->createRevisions($translation, 3);
+ $revert_id = $node->getRevisionId();
+ $translated_title = $translation->label();
+ $untranslatable_string = $node->untranslatable_string_field->value;
+
+ // Create a new revision for the default translation in-between a series of
+ // translation revisions.
+ $this->createRevisions($node, 1);
+ $default_translation_title = $node->label();
+
+ // And create a few more translation revisions.
+ $this->createRevisions($translation, 2);
+ $translation_revision_id = $translation->getRevisionId();
+
+ // Now revert the a translation revision preceding the last default
+ // translation revision, and check that the desired value was reverted but
+ // the default translation value was preserved.
+ $revert_translation_url = Url::fromRoute('node.revision_revert_translation_confirm', [
+ 'node' => $node->id(),
+ 'node_revision' => $revert_id,
+ 'langcode' => 'it',
+ ]);
+ $this->drupalPostForm($revert_translation_url, [], t('Revert'));
+ /** @var \Drupal\node\NodeStorage $node_storage */
+ $node_storage = $this->container->get('entity.manager')->getStorage('node');
+ $node_storage->resetCache();
+ /** @var \Drupal\node\NodeInterface $node */
+ $node = $node_storage->load($node->id());
+ $this->assertTrue($node->getRevisionId() > $translation_revision_id);
+ $this->assertEqual($node->label(), $default_translation_title);
+ $this->assertEqual($node->getTranslation('it')->label(), $translated_title);
+ $this->assertNotEqual($node->untranslatable_string_field->value, $untranslatable_string);
+
+ $latest_revision_id = $translation->getRevisionId();
+
+ // Now revert the a translation revision preceding the last default
+ // translation revision again, and check that the desired value was reverted
+ // but the default translation value was preserved. But in addition the
+ // untranslated field will be reverted as well.
+ $this->drupalPostForm($revert_translation_url, ['revert_untranslated_fields' => TRUE], t('Revert'));
+ $node_storage->resetCache();
+ /** @var \Drupal\node\NodeInterface $node */
+ $node = $node_storage->load($node->id());
+ $this->assertTrue($node->getRevisionId() > $latest_revision_id);
+ $this->assertEqual($node->label(), $default_translation_title);
+ $this->assertEqual($node->getTranslation('it')->label(), $translated_title);
+ $this->assertEqual($node->untranslatable_string_field->value, $untranslatable_string);
+
+ $latest_revision_id = $translation->getRevisionId();
+
+ // Now revert the entity revision to the initial one where the translation
+ // didn't exist.
+ $revert_url = Url::fromRoute('node.revision_revert_confirm', [
+ 'node' => $node->id(),
+ 'node_revision' => $initial_revision_id,
+ ]);
+ $this->drupalPostForm($revert_url, [], t('Revert'));
+ $node_storage->resetCache();
+ /** @var \Drupal\node\NodeInterface $node */
+ $node = $node_storage->load($node->id());
+ $this->assertTrue($node->getRevisionId() > $latest_revision_id);
+ $this->assertEqual($node->label(), $initial_title);
+ $this->assertFalse($node->hasTranslation('it'));
+ }
+
+ /**
+ * Creates a series of revisions for the specified node.
+ *
+ * @param \Drupal\node\NodeInterface $node
+ * The node object.
+ * @param $count
+ * The number of revisions to be created.
+ */
+ protected function createRevisions(NodeInterface $node, $count) {
+ for ($i = 0; $i < $count; $i++) {
+ $node->title = $this->randomString();
+ $node->untranslatable_string_field->value = $this->randomString();
+ $node->setNewRevision(TRUE);
+ $node->save();
+ }
+ }
+
+}