path: root/modules/node/node.test

<?php
// $Id$

/**
 * Test the node_load_multiple() function.
 */
class NodeLoadMultipleUnitTest extends DrupalWebTestCase {

  public static function getInfo() {
    return array(
      'name' => t('Load multiple nodes'),
      'description' => t('Test the loading of multiple nodes.'),
      'group' => t('Node'),
    );
  }

  function setUp() {
    parent::setUp();
    $web_user = $this->drupalCreateUser(array('create article content', 'create page content'));
    $this->drupalLogin($web_user);
  }

  /**
   * Create four nodes and ensure they're loaded correctly.
   */
  function testNodeMultipleLoad() {
    $node1 = $this->drupalCreateNode(array('type' => 'article', 'promote' => 1));
    $node2 = $this->drupalCreateNode(array('type' => 'article', 'promote' => 1));
    $node3 = $this->drupalCreateNode(array('type' => 'article', 'promote' => 0));
    $node4 = $this->drupalCreateNode(array('type' => 'page', 'promote' => 0));

    // Confirm that promoted nodes appear in the default node listing.
    $this->drupalGet('node');
    $this->assertText($node1->title, t('Node title appears on the default listing.'));
    $this->assertText($node2->title, t('Node title appears on the default listing.'));
    $this->assertNoText($node3->title, t('Node title does not appear in the default listing.'));
    $this->assertNoText($node4->title, t('Node title does not appear in the default listing.'));

    // Load nodes with only a condition. Nodes 3 and 4 will be loaded.
    $nodes = node_load_multiple(NULL, array('promote' => 0));
    $this->assertEqual($node3->title, $nodes[$node3->nid]->title, t('Node was loaded.'));
    $this->assertEqual($node4->title, $nodes[$node4->nid]->title, t('Node was loaded.'));
    $count = count($nodes);
    $this->assertTrue($count == 2, t('@count nodes loaded.', array('@count' => $count)));

    // Load nodes by nid. Nodes 1, 2 and 4 will be loaded.
    $nodes = node_load_multiple(array(1, 2, 4));
    $count = count($nodes);
    $this->assertTrue(count($nodes) == 3, t('@count nodes loaded', array('@count' => $count)));
    $this->assertTrue(isset($nodes[$node1->nid]), t('Node is correctly keyed in the array'));
    $this->assertTrue(isset($nodes[$node2->nid]), t('Node is correctly keyed in the array'));
    $this->assertTrue(isset($nodes[$node4->nid]), t('Node is correctly keyed in the array'));
    foreach ($nodes as $node) {
      $this->assertTrue(is_object($node), t('Node is an object'));
    }

    // Load nodes by nid, where type = article. Nodes 1, 2 and 3 will be loaded.
    $nodes = node_load_multiple(array(1, 2, 3, 4), array('type' => 'article'));
    $count = count($nodes);
    $this->assertTrue($count == 3, t('@count nodes loaded', array('@count' => $count)));
    $this->assertEqual($nodes[$node1->nid]->title, $node1->title, t('Node successfully loaded.'));
    $this->assertEqual($nodes[$node2->nid]->title, $node2->title, t('Node successfully loaded.'));
    $this->assertEqual($nodes[$node3->nid]->title, $node3->title, t('Node successfully loaded.'));
    $this->assertFalse(isset($nodes[$node4->nid]));

    // Now that all nodes have been loaded into the static cache, ensure that
    // they are loaded correctly again when a condition is passed.
    $nodes = node_load_multiple(array(1, 2, 3, 4), array('type' => 'article'));
    $count = count($nodes);
    $this->assertTrue($count == 3, t('@count nodes loaded.', array('@count' => $count)));
    $this->assertEqual($nodes[$node1->nid]->title, $node1->title, t('Node successfully loaded'));
    $this->assertEqual($nodes[$node2->nid]->title, $node2->title, t('Node successfully loaded'));
    $this->assertEqual($nodes[$node3->nid]->title, $node3->title, t('Node successfully loaded'));
    $this->assertFalse(isset($nodes[$node4->nid]), t('Node was not loaded'));

    // Load nodes by nid, where type = article and promote = 0.
    $nodes = node_load_multiple(array(1, 2, 3, 4), array('type' => 'article', 'promote' => 0));
    $count = count($nodes);
    $this->assertTrue($count == 1, t('@count node loaded', array('@count' => $count)));
    $this->assertEqual($nodes[$node3->nid]->title, $node3->title, t('Node successfully loaded.'));
  }
}

class NodeRevisionsTestCase extends DrupalWebTestCase {
  protected $nodes;
  protected $logs;

  public static function getInfo() {
    return array(
      'name' => t('Node revisions'),
      'description' => t('Create a node with revisions and test viewing, reverting, and deleting revisions.'),
      'group' => t('Node'),
    );
  }

  function setUp() {
    parent::setUp();

    // Create and login user.
    $web_user = $this->drupalCreateUser(array('view revisions', 'revert revisions', 'edit any page content',
                                               'delete revisions', 'delete any page content'));
    $this->drupalLogin($web_user);

    // Create initial node.
    $node = $this->drupalCreateNode();
    $settings = get_object_vars($node);
    $settings['revision'] = 1;

    $nodes = array();
    $logs = array();

    // Get original node.
    $nodes[] = $node;

    // Create three revisions.
    $revision_count = 3;
    for ($i = 0; $i < $revision_count; $i++) {
      $logs[] = $settings['log'] = $this->randomName(32);

      // Create revision with random title and body and update variables.
      $this->drupalCreateNode($settings);
      $node = node_load($node->nid); // Make sure we get revision information.
      $settings = get_object_vars($node);

      $nodes[] = $node;
    }

    $this->nodes = $nodes;
    $this->logs = $logs;
  }

  /**
   * Check node revision related operations.
   */
  function testRevisions() {
    $nodes = $this->nodes;
    $logs = $this->logs;

    // Get last node for simple checks.
    $node = $nodes[3];

    // Confirm the correct revision text appears on "view revisions" page.
    $this->drupalGet("node/$node->nid/revisions/$node->vid/view");
    $this->assertText($node->body, t('Correct text displays for version.'));

    // Confirm the correct log message appears on "revisions overview" page.
    $this->drupalGet("node/$node->nid/revisions");
    foreach ($logs as $log) {
      $this->assertText($log, t('Log message found.'));
    }

    // Confirm that revisions revert properly.
    $this->drupalPost("node/$node->nid/revisions/{$nodes[1]->vid}/revert", array(), t('Revert'));
    $this->assertRaw(t('@type %title has been reverted back to the revision from %revision-date.',
                        array('@type' => 'Page', '%title' => $nodes[1]->title,
                              '%revision-date' => format_date($nodes[1]->revision_timestamp))), t('Revision reverted.'));
    $reverted_node = node_load($node->nid);
    $this->assertTrue(($nodes[1]->body == $reverted_node->body), t('Node reverted correctly.'));

    // Confirm revisions delete properly.
    $this->drupalPost("node/$node->nid/revisions/{$nodes[1]->vid}/delete", array(), t('Delete'));
    $this->assertRaw(t('Revision from %revision-date of @type %title has been deleted.',
                        array('%revision-date' => format_date($nodes[1]->revision_timestamp),
                              '@type' => 'Page', '%title' => $nodes[1]->title)), t('Revision deleted.'));
    $this->assertTrue(db_result(db_query('SELECT COUNT(vid) FROM {node_revision} WHERE nid = %d and vid = %d', $node->nid, $nodes[1]->vid)) == 0, t('Revision not found.'));
  }
}

class NodeTeaserTestCase extends DrupalWebTestCase {
  public static function getInfo() {
    return array(
      'name' => t('Node teaser'),
      'description' => t('Test node_teaser() with different strings and lengths.'),
      'group' => t('Node'),
    );
  }

  /**
   * Tests an edge case where if the first sentence is a question and
   * subsequent sentences are not. This is edge case is documented at
   * http://drupal.org/node/180425.
   */
  function testFirstSentenceQuestion() {
    $body = 'A question? A sentence. Another sentence.';
    $expected = 'A question? A sentence.';
    $this->callNodeTeaser($body, $expected, NULL, 30);
  }

  /**
   * Test teaser with long example.
   */
  function testLongSentence() {
    $body = 'Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. ' . // 125
            'Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. ' . // 108
            'Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. ' . // 103
            'Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.'; // 110
    $expected = 'Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. ' .
                'Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. ' .
                'Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.';
    // First three sentences add up to: 336, so add one for space and then 3 to get half-way into next word.
    $this->callNodeTeaser($body, $expected, NULL, 340);
  }

  /**
   * Test various teaser length edge cases.
   */
  function testLength() {
    // This body string tests a number of edge cases.
    $body = "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>";

    // The teasers we expect node_teaser() to return when $size is the index
    // of each array item.
    // Using an text format with no line-break filter:
    $teasers = array(
      "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>",
      "<",
      "<p",
      "<p>",
      "<p>\n",
      "<p>\nH",
      "<p>\nHi",
      "<p>\nHi\n",
      "<p>\nHi\n<",
      "<p>\nHi\n</",
      "<p>\nHi\n</p",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>",
      "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>",
      "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>",
    );

    // And Using an text format WITH the line-break filter.
    $teasers_lb = array(
      "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>",
      "<",
      "<p",
      "<p>",
      "<p>",
      "<p>",
      "<p>",
      "<p>\nHi",
      "<p>\nHi",
      "<p>\nHi",
      "<p>\nHi",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>",
      "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>",
      "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>",
      "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>",
    );

    // Test node_teaser() for different sizes.
    for ($i = 0; $i <= 37; $i++) {
      $this->callNodeTeaser($body, $teasers[$i],    NULL, $i);
      $this->callNodeTeaser($body, $teasers_lb[$i], 1,    $i);
      $this->callNodeTeaser($body, $teasers_lb[$i], 2,    $i);
    }
  }

  /**
   * Calls node_teaser() and asserts that the expected teaser is returned.
   */
  function callNodeTeaser($body, $expected, $format = NULL, $size = NULL) {
    $teaser = node_teaser($body, $format, $size);
    $this->assertIdentical($teaser, $expected, t('Generated teaser "@teaser" matches expected teaser.', array('@teaser' => $teaser)));
  }
}

class PageEditTestCase extends DrupalWebTestCase {
  public static function getInfo() {
    return array(
      'name' => t('Node edit'),
      'description' => t('Create a node and test node edit functionality.'),
      'group' => t('Node'),
    );
  }

  function setUp() {
    parent::setUp();

    $web_user = $this->drupalCreateUser(array('edit own page content', 'create page content'));
    $this->drupalLogin($web_user);
  }

  /**
   * Check node edit functionality.
   */
  function testPageEdit() {
    // Create node to edit.
    $edit = array();
    $edit['title'] = $this->randomName(8);
    $edit['body'] = $this->randomName(16);
    $this->drupalPost('node/add/page', $edit, t('Save'));

    // Check that the node exists in the database.
    $node = $this->drupalGetNodeByTitle($edit['title']);
    $this->assertTrue($node, t('Node found in database.'));

    // Check that "edit" link points to correct page.
    $this->clickLink(t('Edit'));
    $edit_url = url("node/$node->nid/edit", array('absolute' => true));
    $actual_url = $this->getURL();
    $this->assertEqual($edit_url, $actual_url, t('On edit page.'));

    // Check that the title and body fields are displayed with the correct values.
    $this->assertLink(t('Edit'), 0, t('Edit tab found.'));
    $this->assertFieldByName('title', $edit['title'], t('Title field displayed.'));
    $this->assertFieldByName('body', '<!--break-->' . $edit['body'], t('Body field displayed.'));

    // Edit the content of the node.
    $edit = array();
    $edit['title'] = $this->randomName(8);
    $edit['body'] = $this->randomName(16);
    // Stay on the current page, without reloading.
    $this->drupalPost(NULL, $edit, t('Save'));

    // Check that the title and body fields are displayed with the updated values.
    $this->assertText($edit['title'], t('Title displayed.'));
    $this->assertText($edit['body'], t('Body displayed.'));
  }
}

class PagePreviewTestCase extends DrupalWebTestCase {
  public static function getInfo() {
    return array(
      'name' => t('Node preview'),
      'description' => t('Test node preview functionality.'),
      'group' => t('Node'),
    );
  }

  function setUp() {
    parent::setUp();

    $web_user = $this->drupalCreateUser(array('edit own page content', 'create page content'));
    $this->drupalLogin($web_user);
  }

  /**
   * Check the node preview functionality.
   */
  function testPagePreview() {
    // Fill in node creation form and preview node.
    $edit = array();
    $edit['title'] = $this->randomName(8);
    $edit['body'] = $this->randomName(16);
    $this->drupalPost('node/add/page', $edit, t('Preview'));

    // Check that the preview is displaying the title and body.
    $this->assertTitle(t('Preview | Drupal'), t('Page title is preview.'));
    $this->assertText($edit['title'], t('Title displayed.'));
    $this->assertText($edit['body'], t('Body displayed.'));

    // Check that the title and body fields are displayed with the correct values.
    $this->assertFieldByName('title', $edit['title'], t('Title field displayed.'));
    $this->assertFieldByName('body', '<!--break-->' . $edit['body'], t('Body field displayed.'));
  }

  /**
   * Check the node preview functionality, when using revisions.
   */
  function testPagePreviewWithRevisions() {
    // Force revision on page content.
    variable_set('node_options_page', array('status', 'revision'));

    // Fill in node creation form and preview node.
    $edit = array();
    $edit['title'] = $this->randomName(8);
    $edit['body'] = $this->randomName(16);
    $edit['log'] = $this->randomName(32);
    $this->drupalPost('node/add/page', $edit, t('Preview'));

    // Check that the preview is displaying the title and body.
    $this->assertTitle(t('Preview | Drupal'), t('Page title is preview.'));
    $this->assertText($edit['title'], t('Title displayed.'));
    $this->assertText($edit['body'], t('Body displayed.'));

    // Check that the title and body fields are displayed with the correct values.
    $this->assertFieldByName('title', $edit['title'], t('Title field displayed.'));
    $this->assertFieldByName('body', '<!--break-->' . $edit['body'], t('Body field displayed.'));

    // Check that the log field has the correct value.
    $this->assertFieldByName('log', $edit['log'], t('Log field displayed.'));
  }
}

class PageCreationTestCase extends DrupalWebTestCase {
  public static function getInfo() {
    return array(
      'name' => t('Node creation'),
      'description' => t('Create a node and test saving it.'),
      'group' => t('Node'),
    );
  }

  function setUp() {
    parent::setUp();

    $web_user = $this->drupalCreateUser(array('create page content', 'edit own page content'));
    $this->drupalLogin($web_user);
  }

  /**
   * Create a page node and verify its consistency in the database.
   */
  function testPageCreation() {
    // Create a node.
    $edit = array();
    $edit['title'] = $this->randomName(8);
    $edit['body'] = $this->randomName(16);
    $this->drupalPost('node/add/page', $edit, t('Save'));

    // Check that the page has been created.
    $this->assertRaw(t('!post %title has been created.', array('!post' => 'Page', '%title' => $edit['title'])), t('Page created.'));

    // Check that the node exists in the database.
    $node = $this->drupalGetNodeByTitle($edit['title']);
    $this->assertTrue($node, t('Node found in database.'));
  }
}

class PageViewTestCase extends DrupalWebTestCase {
  public static function getInfo() {
    return array(
      'name' => t('Node edit permissions'),
      'description' => t('Create a node and test edit permissions.'),
      'group' => t('Node'),
    );
  }

  /**
   * Creates a node and then an anonymous and unpermissioned user attempt to edit the node.
   */
  function testPageView() {
    // Create a node to view.
    $node = $this->drupalCreateNode();
    $this->assertTrue(node_load($node->nid), t('Node created.'));

    // Try to edit with anonymous user.
    $html = $this->drupalGet("node/$node->nid/edit");
    $this->assertResponse(403);

    // Create a user without permission to edit node.
    $web_user = $this->drupalCreateUser(array('access content'));
    $this->drupalLogin($web_user);

    // Attempt to access edit page.
    $this->drupalGet("node/$node->nid/edit");
    $this->assertResponse(403);

    // Create user with permission to edit node.
    $web_user = $this->drupalCreateUser(array('bypass node access'));
    $this->drupalLogin($web_user);

    // Attempt to access edit page.
    $this->drupalGet("node/$node->nid/edit");
    $this->assertResponse(200);
  }
}

class NodeTitleXSSTestCase extends DrupalWebTestCase {
  public static function getInfo() {
     return array(
      'name' => t('Node title XSS filtering'),
      'description' => t('Create a node with dangerous tags in its title and test that they are escaped.'),
      'group' => t('Node'),
    );
  }

  function testNodeTitleXSS() {
    // Prepare a user to do the stuff.
    $web_user = $this->drupalCreateUser(array('create page content', 'edit any page content'));
    $this->drupalLogin($web_user);

    $xss = '<script>alert("xss")</script>';

    $edit = array(
      'title' => $xss . $this->randomName(),
    );
    $this->drupalPost('node/add/page', $edit, t('Preview'));
    $this->assertNoRaw($xss, t('Harmful tags are escaped when previewing a node.'));

    $node = $this->drupalCreateNode($edit);

    $this->drupalGet('node/' . $node->nid);
    // assertTitle() decodes HTML-entities inside the <title> element.
    $this->assertTitle($edit['title'] . ' | Drupal', t('Title is diplayed when viewing a node.'));
    $this->assertNoRaw($xss, t('Harmful tags are escaped when viewing a node.'));

    $this->drupalGet('node/' . $node->nid . '/edit');
    $this->assertNoRaw($xss, t('Harmful tags are escaped when editing a node.'));
  }
}

class NodeBlockTestCase extends DrupalWebTestCase {
  public static function getInfo() {
    return array(
      'name' => t('Block availability'),
      'description' => t('Check if the syndicate block is available.'),
      'group' => t('Node'),
    );
  }

  function setUp() {
    parent::setUp();

    // Create and login user
    $admin_user = $this->drupalCreateUser(array('administer blocks'));
    $this->drupalLogin($admin_user);
  }

  function testSearchFormBlock() {
    // Set block title to confirm that the interface is availble.
    $this->drupalPost('admin/build/block/configure/node/syndicate', array('title' => $this->randomName(8)), t('Save block'));
    $this->assertText(t('The block configuration has been saved.'), t('Block configuration set.'));

    // Set the block to a region to confirm block is availble.
    $edit = array();
    $edit['node_syndicate[region]'] = 'footer';
    $this->drupalPost('admin/build/block', $edit, t('Save blocks'));
    $this->assertText(t('The block settings have been updated.'), t('Block successfully move to footer region.'));
  }
}

/**
 * Check that the post information displays when enabled for a content type.
 */
class NodePostSettingsTestCase extends DrupalWebTestCase {
  public static function getInfo() {
    return array(
      'name' => t('Node post information display'),
      'description' => t('Check that the post information (submitted by Username on date) text displays appropriately.'),
      'group' => t('Node'),
    );
  }

  function setUp() {
    parent::setUp();

    $web_user = $this->drupalCreateUser(array('create page content', 'administer content types', 'access user profiles'));
    $this->drupalLogin($web_user);
  }

  /**
   * Set page content type to display post information and confirm its presence on a new node.
   */
  function testPagePostInfo() {

    // Set page content type to display post information.
    $edit = array();
    $edit['node_submitted'] = TRUE;
    $this->drupalPost('admin/build/node-type/page', $edit, t('Save content type'));

    // Create a node.
    $edit = array();
    $edit['title'] = $this->randomName(8);
    $edit['body'] = $this->randomName(16);
    $this->drupalPost('node/add/page', $edit, t('Save'));

    // Check that the post information is displayed.
    $node = $this->drupalGetNodeByTitle($edit['title']);
    $this->assertRaw(theme('node_submitted', $node), t('Post information is displayed.'));
  }

  /**
   * Set page content type to not display post information and confirm its absence on a new node.
   */
  function testPageNotPostInfo() {

    // Set page content type to display post information.
    $edit = array();
    $edit['node_submitted'] = FALSE;
    $this->drupalPost('admin/build/node-type/page', $edit, t('Save content type'));

    // Create a node.
    $edit = array();
    $edit['title'] = $this->randomName(8);
    $edit['body'] = $this->randomName(16);
    $this->drupalPost('node/add/page', $edit, t('Save'));

    // Check that the post information is displayed.
    $node = $this->drupalGetNodeByTitle($edit['title']);
    $this->assertNoRaw(theme('node_submitted', $node), t('Post information is not displayed.'));
  }
}

/**
 * Ensure that data added to nodes by other modules appears in RSS feeds.
 * 
 * Create a node, enable the node_test module to ensure that extra data is
 * added to the node->content array, then verify that the data appears on the
 * sitewide RSS feed at rss.xml.
 */
class NodeRSSContentTestCase extends DrupalWebTestCase {
  public static function getInfo() {
    return array(
      'name' => t('Node RSS Content'),
      'description' => t('Ensure that data added to nodes by other modules appears in RSS feeds.'),
      'group' => t('Node'),
    );
  }

  function setUp() {
    // Enable dummy module that implements hook_node_view.
    parent::setUp('node_test');
  }

  /**
   * Create a new node and ensure that it includes the custom data when added
   * to an RSS feed.
   */
  function testNodeRSSContent() {
    // Create a node.
    $node = $this->drupalCreateNode(array('type' => 'article', 'promote' => 1));

    $test_text = t('Extra test data added to node !nid.', array('!nid' => $node->nid));

    $this->drupalGet('rss.xml');
    $this->assertText($test_text, t('Extra node content appears in RSS feed.'));
  }
}