class NodeRevisionsUiTest

class NodeRevisionsUiTest extends NodeTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * @var \Drupal\user\Entity\User
     */
    protected $editor;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        parent::setUp();
        // Create users.
        $this->editor = $this->drupalCreateUser([
            'administer nodes',
            'edit any page content',
            'view page revisions',
            'access user profiles',
        ]);
    }
    
    /**
     * Checks that unchecking 'Create new revision' works when editing a node.
     */
    public function testNodeFormSaveWithoutRevision() {
        $this->drupalLogin($this->editor);
        $node_storage = $this->container
            ->get('entity_type.manager')
            ->getStorage('node');
        // Set page revision setting 'create new revision'. This will mean new
        // revisions are created by default when the node is edited.
        $type = NodeType::load('page');
        $type->setNewRevision(TRUE);
        $type->save();
        // Create the node.
        $node = $this->drupalCreateNode();
        // Verify the checkbox is checked on the node edit form.
        $this->drupalGet('node/' . $node->id() . '/edit');
        $this->assertFieldChecked('edit-revision', "'Create new revision' checkbox is checked");
        // Uncheck the create new revision checkbox and save the node.
        $edit = [
            'revision' => FALSE,
        ];
        $this->drupalPostForm('node/' . $node->id() . '/edit', $edit, t('Save'));
        // Load the node again and check the revision is the same as before.
        $node_storage->resetCache([
            $node->id(),
        ]);
        $node_revision = $node_storage->load($node->id(), TRUE);
        $this->assertEqual($node_revision->getRevisionId(), $node->getRevisionId(), "After an existing node is saved with 'Create new revision' unchecked, a new revision is not created.");
        // Verify the checkbox is checked on the node edit form.
        $this->drupalGet('node/' . $node->id() . '/edit');
        $this->assertFieldChecked('edit-revision', "'Create new revision' checkbox is checked");
        // Submit the form without changing the checkbox.
        $edit = [];
        $this->drupalPostForm('node/' . $node->id() . '/edit', $edit, t('Save'));
        // Load the node again and check the revision is different from before.
        $node_storage->resetCache([
            $node->id(),
        ]);
        $node_revision = $node_storage->load($node->id());
        $this->assertNotEqual($node_revision->getRevisionId(), $node->getRevisionId(), "After an existing node is saved with 'Create new revision' checked, a new revision is created.");
    }
    
    /**
     * Checks HTML double escaping of revision logs.
     */
    public function testNodeRevisionDoubleEscapeFix() {
        $this->drupalLogin($this->editor);
        $nodes = [];
        // Create the node.
        $node = $this->drupalCreateNode();
        $username = [
            '#theme' => 'username',
            '#account' => $this->editor,
        ];
        $editor = \Drupal::service('renderer')->renderPlain($username);
        // Get original node.
        $nodes[] = clone $node;
        // 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->setNewRevision();
        $revision_log = 'Revision <em>message</em> with markup.';
        $node->revision_log->value = $revision_log;
        $node->save();
        // Make sure we get revision information.
        $node = Node::load($node->id());
        $nodes[] = clone $node;
        $this->drupalGet('node/' . $node->id() . '/revisions');
        // Assert the old revision message.
        $date = $this->container
            ->get('date.formatter')
            ->format($nodes[0]->revision_timestamp->value, 'short');
        $url = new Url('entity.node.revision', [
            'node' => $nodes[0]->id(),
            'node_revision' => $nodes[0]->getRevisionId(),
        ]);
        $this->assertRaw(Link::fromTextAndUrl($date, $url)->toString() . ' by ' . $editor);
        // Assert the current revision message.
        $date = $this->container
            ->get('date.formatter')
            ->format($nodes[1]->revision_timestamp->value, 'short');
        $this->assertRaw($nodes[1]->toLink($date)
            ->toString() . ' by ' . $editor . '<p class="revision-log">' . $revision_log . '</p>');
    }
    
    /**
     * Checks the Revisions tab.
     */
    public function testNodeRevisionsTabWithDefaultRevision() {
        $this->drupalLogin($this->editor);
        // Create the node.
        $node = $this->drupalCreateNode();
        $storage = \Drupal::entityTypeManager()->getStorage($node->getEntityTypeId());
        // Create a new revision based on the default revision.
        // Revision 2.
        $node = $storage->load($node->id());
        $node->setNewRevision(TRUE);
        $node->save();
        // Revision 3.
        $node = $storage->load($node->id());
        $node->setNewRevision(TRUE);
        $node->save();
        // Revision 4.
        // Trigger translation changes in order to show the revision.
        $node = $storage->load($node->id());
        $node->setTitle($this->randomString());
        $node->isDefaultRevision(FALSE);
        $node->setNewRevision(TRUE);
        $node->save();
        // Revision 5.
        $node = $storage->load($node->id());
        $node->isDefaultRevision(FALSE);
        $node->setNewRevision(TRUE);
        $node->save();
        $node_id = $node->id();
        $this->drupalGet('node/' . $node_id . '/revisions');
        // Verify that the latest affected revision having been a default revision
        // is displayed as the current one.
        $this->assertNoLinkByHref('/node/' . $node_id . '/revisions/1/revert');
        $elements = $this->xpath('//tr[contains(@class, "revision-current")]/td/a[1]');
        // The site may be installed in a subdirectory, so check if the URL is
        // contained in the retrieved one.
        $this->assertStringContainsString('/node/1', current($elements)->getAttribute('href'));
        // Verify that the default revision can be an older revision than the latest
        // one.
        // Assert that the revisions with translations changes are shown.
        $this->assertLinkByHref('/node/' . $node_id . '/revisions/4/revert');
        // Assert that the revisions without translations changes are filtered out:
        // 2, 3 and 5.
        $this->assertNoLinkByHref('/node/' . $node_id . '/revisions/2/revert');
        $this->assertNoLinkByHref('/node/' . $node_id . '/revisions/3/revert');
        $this->assertNoLinkByHref('/node/' . $node_id . '/revisions/5/revert');
    }

}