ForumTestCase

  1. drupal
    1. 8
    2. 7

Hierarchy

Properties

NameDescription
DrupalTestCase::$assertionsAssertions thrown in that test case.
DrupalTestCase::$databasePrefixThe database prefix of this test run.
DrupalTestCase::$originalFileDirectoryThe original file directory, before it was changed for testing purposes.
DrupalTestCase::$resultsCurrent results of this test case.
DrupalTestCase::$skipClassesThis class is skipped when looking for the source of an assertion.
DrupalTestCase::$testIdThe test run ID.
DrupalTestCase::$timeLimitTime limit for the test.
DrupalWebTestCase::$additionalCurlOptionsAdditional cURL options.
DrupalWebTestCase::$contentThe content of the page currently loaded in the internal browser.
DrupalWebTestCase::$cookieFileThe current cookie file used by cURL.
DrupalWebTestCase::$curlHandleThe handle of the current cURL connection.
DrupalWebTestCase::$drupalSettingsThe value of the Drupal.settings JavaScript variable for the page currently loaded in the internal browser.
DrupalWebTestCase::$elementsThe parsed version of the page.
DrupalWebTestCase::$generatedTestFilesWhether the files were copied to the test files directory.
DrupalWebTestCase::$headersThe headers of the page currently loaded in the internal browser.
DrupalWebTestCase::$httpauth_credentialsHTTP authentication credentials (<username>:<password>).
DrupalWebTestCase::$httpauth_methodHTTP authentication method
DrupalWebTestCase::$loggedInUserThe current user logged in using the internal browser.
DrupalWebTestCase::$originalShutdownCallbacksThe original shutdown handlers array, before it was cleaned for testing purposes.
DrupalWebTestCase::$originalUserThe original user, before it was changed to a clean uid = 1 for testing purposes.
DrupalWebTestCase::$plainTextContentThe content of the page currently loaded in the internal browser (plain text version).
DrupalWebTestCase::$profileThe profile to install as a basis for testing.
DrupalWebTestCase::$redirect_countThe number of redirects followed during the handling of a request.
DrupalWebTestCase::$session_idThe current session ID, if available.
DrupalWebTestCase::$session_nameThe current session name, if available.
DrupalWebTestCase::$urlThe URL currently loaded in the internal browser.
ForumTestCase::$admin_user
ForumTestCase::$container
ForumTestCase::$edit_any_topics_user
ForumTestCase::$edit_own_topics_user
ForumTestCase::$forum
ForumTestCase::$nids
ForumTestCase::$root_forum
ForumTestCase::$web_user

Functions & methods

NameDescription
DrupalTestCase::assertInternal helper: stores the assert.
DrupalTestCase::assertEqualCheck to see if two values are equal.
DrupalTestCase::assertFalseCheck to see if a value is false (an empty string, 0, NULL, or FALSE).
DrupalTestCase::assertIdenticalCheck to see if two values are identical.
DrupalTestCase::assertNotEqualCheck to see if two values are not equal.
DrupalTestCase::assertNotIdenticalCheck to see if two values are not identical.
DrupalTestCase::assertNotNullCheck to see if a value is not NULL.
DrupalTestCase::assertNullCheck to see if a value is NULL.
DrupalTestCase::assertTrueCheck to see if a value is not false (not an empty string, 0, NULL, or FALSE).
DrupalTestCase::deleteAssertDelete an assertion record by message ID.
DrupalTestCase::errorFire an error assertion.
DrupalTestCase::errorHandlerHandle errors during test runs.
DrupalTestCase::exceptionHandlerHandle exceptions.
DrupalTestCase::failFire an assertion that is always negative.
DrupalTestCase::generatePermutationsConverts a list of possible parameters into a stack of permutations.
DrupalTestCase::getAssertionCallCycles through backtrace until the first non-assertion method is found.
DrupalTestCase::insertAssertStore an assertion from outside the testing context.
DrupalTestCase::passFire an assertion that is always positive.
DrupalTestCase::randomNameGenerates a random string containing letters and numbers.
DrupalTestCase::randomStringGenerates a random string of ASCII characters of codes 32 to 126.
DrupalTestCase::runRun all tests in this class.
DrupalTestCase::verboseLogs verbose message in a text file.
DrupalWebTestCase::assertFieldAsserts that a field exists with the given name or id.
DrupalWebTestCase::assertFieldByIdAsserts that a field exists in the current page with the given id and value.
DrupalWebTestCase::assertFieldByNameAsserts that a field exists in the current page with the given name and value.
DrupalWebTestCase::assertFieldByXPathAsserts that a field exists in the current page by the given XPath.
DrupalWebTestCase::assertFieldCheckedAsserts that a checkbox field in the current page is checked.
DrupalWebTestCase::assertLinkPass if a link with the specified label is found, and optional with the specified index.
DrupalWebTestCase::assertLinkByHrefPass if a link containing a given href (part) is found.
DrupalWebTestCase::assertMailAsserts that the most recently sent e-mail message has the given value.
DrupalWebTestCase::assertMailPatternAsserts that the most recently sent e-mail message has the pattern in it.
DrupalWebTestCase::assertMailStringAsserts that the most recently sent e-mail message has the string in it.
DrupalWebTestCase::assertNoDuplicateIdsAsserts that each HTML ID is used for just a single element.
DrupalWebTestCase::assertNoFieldAsserts that a field does not exist with the given name or id.
DrupalWebTestCase::assertNoFieldByIdAsserts that a field does not exist with the given id and value.
DrupalWebTestCase::assertNoFieldByNameAsserts that a field does not exist with the given name and value.
DrupalWebTestCase::assertNoFieldByXPathAsserts that a field does not exist in the current page by the given XPath.
DrupalWebTestCase::assertNoFieldCheckedAsserts that a checkbox field in the current page is not checked.
DrupalWebTestCase::assertNoLinkPass if a link with the specified label is not found.
DrupalWebTestCase::assertNoLinkByHrefPass if a link containing a given href (part) is not found.
DrupalWebTestCase::assertNoOptionSelectedAsserts that a select option in the current page is not checked.
DrupalWebTestCase::assertNoPatternWill trigger a pass if the perl regex pattern is not present in raw content.
DrupalWebTestCase::assertNoRawPass if the raw text is NOT found on the loaded page, fail otherwise. Raw text refers to the raw HTML that the page generated.
DrupalWebTestCase::assertNoResponseAsserts the page did not return the specified response code.
DrupalWebTestCase::assertNoTextPass if the text is NOT found on the text version of the page. The text version is the equivalent of what a user would see when viewing through a web browser. In other words the HTML has been filtered out of the contents.
DrupalWebTestCase::assertNoTitlePass if the page title is not the given string.
DrupalWebTestCase::assertNoUniqueTextPass if the text is found MORE THAN ONCE on the text version of the page.
DrupalWebTestCase::assertOptionSelectedAsserts that a select option in the current page is checked.
DrupalWebTestCase::assertPatternWill trigger a pass if the Perl regex pattern is found in the raw content.
DrupalWebTestCase::assertRawPass if the raw text IS found on the loaded page, fail otherwise. Raw text refers to the raw HTML that the page generated.
DrupalWebTestCase::assertResponseAsserts the page responds with the specified response code.
DrupalWebTestCase::assertTextPass if the text IS found on the text version of the page. The text version is the equivalent of what a user would see when viewing through a web browser. In other words the HTML has been filtered out of the contents.
DrupalWebTestCase::assertTextHelperHelper for assertText and assertNoText.
DrupalWebTestCase::assertTitlePass if the page title is the given string.
DrupalWebTestCase::assertUniqueTextPass if the text is found ONLY ONCE on the text version of the page.
DrupalWebTestCase::assertUniqueTextHelperHelper for assertUniqueText and assertNoUniqueText.
DrupalWebTestCase::assertUrlPass if the internal browser's URL matches the given path.
DrupalWebTestCase::buildXPathQueryBuilds an XPath query.
DrupalWebTestCase::checkForMetaRefreshCheck for meta refresh tag and if found call drupalGet() recursively. This function looks for the http-equiv attribute to be set to "Refresh" and is case-sensitive.
DrupalWebTestCase::checkPermissionsCheck to make sure that the array of permissions are valid.
DrupalWebTestCase::clickLinkFollows a link by name.
DrupalWebTestCase::constructFieldXpathHelper function: construct an XPath for the given set of attributes and value.
DrupalWebTestCase::cronRunRuns cron in the Drupal installed by Simpletest.
DrupalWebTestCase::curlCloseClose the cURL handler and unset the handler.
DrupalWebTestCase::curlExecInitializes and executes a cURL request.
DrupalWebTestCase::curlHeaderCallbackReads headers and registers errors received from the tested site.
DrupalWebTestCase::curlInitializeInitializes the cURL connection.
DrupalWebTestCase::drupalCompareFilesCompare two files based on size and file name.
DrupalWebTestCase::drupalCreateContentTypeCreates a custom content type based on default settings.
DrupalWebTestCase::drupalCreateNodeCreates a node based on default settings.
DrupalWebTestCase::drupalCreateRoleInternal helper function; Create a role with specified permissions.
DrupalWebTestCase::drupalCreateUserCreate a user with a given set of permissions. The permissions correspond to the names given on the privileges page.
DrupalWebTestCase::drupalGetRetrieves a Drupal path or an absolute path.
DrupalWebTestCase::drupalGetAJAXRetrieve a Drupal path or an absolute path and JSON decode the result.
DrupalWebTestCase::drupalGetContentGets the current raw HTML of requested page.
DrupalWebTestCase::drupalGetHeaderGets the value of an HTTP response header. If multiple requests were required to retrieve the page, only the headers from the last request will be checked by default. However, if TRUE is passed as the second argument, all requests will be processed…
DrupalWebTestCase::drupalGetHeadersGets the HTTP response headers of the requested page. Normally we are only interested in the headers returned by the last request. However, if a page is redirected or HTTP authentication is in use, multiple requests will be required to retrieve the…
DrupalWebTestCase::drupalGetMailsGets an array containing all e-mails sent during this test case.
DrupalWebTestCase::drupalGetNodeByTitleGet a node from the database based on its title.
DrupalWebTestCase::drupalGetSettingsGets the value of the Drupal.settings JavaScript variable for the currently loaded page.
DrupalWebTestCase::drupalGetTestFilesGet a list files that can be used in tests.
DrupalWebTestCase::drupalGetTokenGenerate a token for the currently logged in user.
DrupalWebTestCase::drupalHeadRetrieves only the headers for a Drupal path or an absolute path.
DrupalWebTestCase::drupalLoginLog in a user with the internal browser.
DrupalWebTestCase::drupalLogout
DrupalWebTestCase::drupalPostExecute a POST request on a Drupal page. It will be done as usual POST request with SimpleBrowser.
DrupalWebTestCase::drupalPostAJAXExecute an Ajax submission.
DrupalWebTestCase::drupalSetContentSets the raw HTML content. This can be useful when a page has been fetched outside of the internal browser and assertions need to be made on the returned page.
DrupalWebTestCase::drupalSetSettingsSets the value of the Drupal.settings JavaScript variable for the currently loaded page.
DrupalWebTestCase::getAbsoluteUrlTakes a path and returns an absolute path.
DrupalWebTestCase::getAllOptionsGet all option elements, including nested options, in a select.
DrupalWebTestCase::getSelectedItemGet the selected value from a select field.
DrupalWebTestCase::getUrlGet the current url from the cURL handler.
DrupalWebTestCase::handleFormHandle form input related to drupalPost(). Ensure that the specified fields exist and attempt to create POST data in the correct manner for the particular field type.
DrupalWebTestCase::parseParse content returned from curlExec using DOM and SimpleXML.
DrupalWebTestCase::preloadRegistryPreload the registry from the testing site.
DrupalWebTestCase::refreshVariablesRefresh the in-memory set of variables. Useful after a page request is made that changes a variable in a different thread.
DrupalWebTestCase::resetAllReset all data structures after having enabled new modules.
DrupalWebTestCase::tearDownDelete created files and temporary files directory, delete the tables created by setUp(), and reset the database prefix.
DrupalWebTestCase::verboseEmailOutputs to verbose the most recent $count emails sent.
DrupalWebTestCase::xpathPerform an xpath search on the contents of the internal browser. The search is relative to the root element (HTML tag normally) of the page.
DrupalWebTestCase::__constructConstructor for DrupalWebTestCase. Overrides DrupalTestCase::__construct
ForumTestCase::createForumCreate a forum container or a forum.
ForumTestCase::createForumTopicCreate forum topic.
ForumTestCase::deleteForumDelete a forum.
ForumTestCase::doAdminTestsRun admin tests on the admin user.
ForumTestCase::doBasicTestsRun basic tests on the indicated user.
ForumTestCase::editForumTaxonomyEdit the forum taxonomy.
ForumTestCase::generateForumTopicsGenerate forum topics to test display of active forum block.
ForumTestCase::getInfo
ForumTestCase::setUpEnable modules and create users with specific permissions. Overrides DrupalWebTestCase::setUp
ForumTestCase::testAddOrphanTopicForum nodes should not be created without choosing forum from select list.
ForumTestCase::testEnableForumFieldTests disabling and re-enabling forum.
ForumTestCase::testForumLogin users, create forum nodes, and test forum functionality through the admin and user interfaces.
ForumTestCase::verifyForumsVerify the logged in user has access to a forum nodes.
ForumTestCase::verifyForumViewVerify display of forum page.
ForumTestCase::viewForumTopicsView forum topics to test display of active forum block.

modules/forum/forum.test, line 8

View source
<?php
class ForumTestCase extends DrupalWebTestCase {
  protected $admin_user;
  protected $edit_own_topics_user;
  protected $edit_any_topics_user;
  protected $web_user;
  protected $container;
  protected $forum;
  protected $root_forum;
  protected $nids;

  public static function getInfo() {
    return array(
      'name' => 'Forum functionality', 
      'description' => 'Create, view, edit, delete, and change forum entries and verify its consistency in the database.', 
      'group' => 'Forum',
    );
  }

  /**
   * Enable modules and create users with specific permissions.
   */
  function setUp() {
    parent::setUp('taxonomy', 'comment', 'forum');
    // Create users.
    $this->admin_user = $this->drupalCreateUser(array(
      'access administration pages',
      'administer modules',
      'administer blocks',
      'administer forums',
      'administer menu',
      'administer taxonomy',
      'create forum content',
    ));
    $this->edit_any_topics_user = $this->drupalCreateUser(array(
      'access administration pages',
      'create forum content',
      'edit any forum content',
      'delete any forum content',
    ));
    $this->edit_own_topics_user = $this->drupalCreateUser(array(
      'create forum content',
      'edit own forum content',
      'delete own forum content',
    ));
    $this->web_user = $this->drupalCreateUser(array());
  }

  /**
   * Tests disabling and re-enabling forum.
   */
  function testEnableForumField() {
    $this->drupalLogin($this->admin_user);

    // Disable the forum module.
    $edit = array();
    $edit['modules[Core][forum][enable]'] = FALSE;
    $this->drupalPost('admin/modules', $edit, t('Save configuration'));
    $this->assertText(t('The configuration options have been saved.'), t('Modules status has been updated.'));
    module_list(TRUE);
    $this->assertFalse(module_exists('forum'), t('Forum module is not enabled.'));

    // Attempt to re-enable the forum module and ensure it does not try to
    // recreate the taxonomy_forums field.
    $edit = array();
    $edit['modules[Core][forum][enable]'] = 'forum';
    $this->drupalPost('admin/modules', $edit, t('Save configuration'));
    $this->assertText(t('The configuration options have been saved.'), t('Modules status has been updated.'));
    module_list(TRUE);
    $this->assertTrue(module_exists('forum'), t('Forum module is enabled.'));
  }

  /**
   * Login users, create forum nodes, and test forum functionality through the admin and user interfaces.
   */
  function testForum() {
    //Check that the basic forum install creates a default forum topic
    $this->drupalGet("/forum");
    // Look for the "General discussion" default forum
    $this->assertText(t("General discussion"), "Found the default forum at the /forum listing");

    // Do the admin tests.
    $this->doAdminTests($this->admin_user);
    // Generate topics to populate the active forum block.
    $this->generateForumTopics($this->forum);

    // Login an unprivileged user to view the forum topics and generate an
    // active forum topics list.
    $this->drupalLogin($this->web_user);
    // Verify that this user is shown a message that they may not post content.
    $this->drupalGet('forum/' . $this->forum['tid']);
    $this->assertText(t('You are not allowed to post new content in the forum'), "Authenticated user without permission to post forum content is shown message in local tasks to that effect.");

    $this->viewForumTopics($this->nids);

    // Log in, and do basic tests for a user with permission to edit any forum
    // content.
    $this->doBasicTests($this->edit_any_topics_user, TRUE);
    // Create a forum node authored by this user.
    $any_topics_user_node = $this->createForumTopic($this->forum, FALSE);

    // Log in, and do basic tests for a user with permission to edit only its
    // own forum content.
    $this->doBasicTests($this->edit_own_topics_user, FALSE);
    // Create a forum node authored by this user.
    $own_topics_user_node = $this->createForumTopic($this->forum, FALSE);
    // Verify that this user cannot edit forum content authored by another user.
    $this->verifyForums($this->edit_any_topics_user, $any_topics_user_node, FALSE, 403);

    // Verify that this user is shown a local task to add new forum content.
    $this->drupalGet('forum');
    $this->assertLink(t('Add new Forum topic'));
    $this->drupalGet('forum/' . $this->forum['tid']);
    $this->assertLink(t('Add new Forum topic'));

    // Login a user with permission to edit any forum content.
    $this->drupalLogin($this->edit_any_topics_user);
    // Verify that this user can edit forum content authored by another user.
    $this->verifyForums($this->edit_own_topics_user, $own_topics_user_node, TRUE);

    // Verify the topic and post counts on the forum page.
    $this->drupalGet('forum');

    // Verify row for testing forum.
    $forum_arg = array(':forum' => 'forum-list-' . $this->forum['tid']);

    // Topics cell contains number of topics and number of unread topics.
    $xpath = $this->buildXPathQuery('//tr[@id=:forum]//td[@class="topics"]', $forum_arg);
    $topics = $this->xpath($xpath);
    $topics = trim($topics[0]);
    $this->assertEqual($topics, '6', t('Number of topics found.'));

    // Verify the number of unread topics.
    $unread_topics = _forum_topics_unread($this->forum['tid'], $this->edit_any_topics_user->uid);
    $unread_topics = format_plural($unread_topics, '1 new', '@count new');
    $xpath = $this->buildXPathQuery('//tr[@id=:forum]//td[@class="topics"]//a', $forum_arg);
    $this->assertFieldByXPath($xpath, $unread_topics, t('Number of unread topics found.'));

    // Verify total number of posts in forum.
    $xpath = $this->buildXPathQuery('//tr[@id=:forum]//td[@class="posts"]', $forum_arg);
    $this->assertFieldByXPath($xpath, '6', t('Number of posts found.'));

    // Test loading multiple forum nodes on the front page.
    $this->drupalLogin($this->drupalCreateUser(array('administer content types', 'create forum content')));
    $this->drupalPost('admin/structure/types/manage/forum', array('node_options[promote]' => 'promote'), t('Save content type'));
    $this->createForumTopic($this->forum, FALSE);
    $this->createForumTopic($this->forum, FALSE);
    $this->drupalGet('node');

    // Test adding a comment to a forum topic.
    $node = $this->createForumTopic($this->forum, FALSE);
    $edit = array();
    $edit['comment_body[' . LANGUAGE_NONE . '][0][value]'] = $this->randomName();
    $this->drupalPost("node/$node->nid", $edit, t('Save'));
    $this->assertResponse(200);

    // Test editing a forum topic that has a comment.
    $this->drupalLogin($this->edit_any_topics_user);
    $this->drupalGet('forum/' . $this->forum['tid']);
    $this->drupalPost("node/$node->nid/edit", array(), t('Save'));
    $this->assertResponse(200);
  }

  /**
   * Forum nodes should not be created without choosing forum from select list.
   */
  function testAddOrphanTopic() {
    // Must remove forum topics to test creating orphan topics.
    $vid = variable_get('forum_nav_vocabulary');
    $tree = taxonomy_get_tree($vid);
    foreach ($tree as $term) {
      taxonomy_term_delete($term->tid);
    }

    // Create an orphan forum item.
    $this->drupalLogin($this->admin_user);
    $this->drupalPost('node/add/forum', array('title' => $this->randomName(10), 'body[' . LANGUAGE_NONE . '][0][value]' => $this->randomName(120)), t('Save'));

    $nid_count = db_query('SELECT COUNT(nid) FROM {node}')->fetchField();
    $this->assertEqual(0, $nid_count, t('A forum node was not created when missing a forum vocabulary.'));

    // Reset the defaults for future tests.
    module_enable(array('forum'));
  }

  /**
   * Run admin tests on the admin user.
   *
   * @param object $user The logged in user.
   */
  private function doAdminTests($user) {
    // Login the user.
    $this->drupalLogin($user);

    // Enable the active forum block.
    $edit = array();
    $edit['blocks[forum_active][region]'] = 'sidebar_second';
    $this->drupalPost('admin/structure/block', $edit, t('Save blocks'));
    $this->assertResponse(200);
    $this->assertText(t('The block settings have been updated.'), t('Active forum topics forum block was enabled'));

    // Enable the new forum block.
    $edit = array();
    $edit['blocks[forum_new][region]'] = 'sidebar_second';
    $this->drupalPost('admin/structure/block', $edit, t('Save blocks'));
    $this->assertResponse(200);
    $this->assertText(t('The block settings have been updated.'), t('[New forum topics] Forum block was enabled'));

    // Retrieve forum menu id.
    $mlid = db_query_range("SELECT mlid FROM {menu_links} WHERE link_path = 'forum' AND menu_name = 'navigation' AND module = 'system' ORDER BY mlid ASC", 0, 1)->fetchField();

    // Add forum to navigation menu.
    $edit = array();
    $this->drupalPost('admin/structure/menu/manage/navigation', $edit, t('Save configuration'));
    $this->assertResponse(200);

    // Edit forum taxonomy.
    // Restoration of the settings fails and causes subsequent tests to fail.
    $this->container = $this->editForumTaxonomy();
    // Create forum container.
    $this->container = $this->createForum('container');
    // Verify "edit container" link exists and functions correctly.
    $this->drupalGet('admin/structure/forum');
    $this->clickLink('edit container');
    $this->assertRaw('Edit container', t('Followed the link to edit the container'));
    // Create forum inside the forum container.
    $this->forum = $this->createForum('forum', $this->container['tid']);
    // Verify the "edit forum" link exists and functions correctly.
    $this->drupalGet('admin/structure/forum');
    $this->clickLink('edit forum');
    $this->assertRaw('Edit forum', t('Followed the link to edit the forum'));
    // Navigate back to forum structure page.
    $this->drupalGet('admin/structure/forum');
    // Create second forum in container.
    $this->delete_forum = $this->createForum('forum', $this->container['tid']);
    // Save forum overview.
    $this->drupalPost('admin/structure/forum/', array(), t('Save'));
    $this->assertRaw(t('The configuration options have been saved.'));
    // Delete this second form.
    $this->deleteForum($this->delete_forum['tid']);
    // Create forum at the top (root) level.
    $this->root_forum = $this->createForum('forum');
  }

  /**
   * Edit the forum taxonomy.
   */
  function editForumTaxonomy() {
    // Backup forum taxonomy.
    $vid = variable_get('forum_nav_vocabulary', '');
    $original_settings = taxonomy_vocabulary_load($vid);

    // Generate a random name/description.
    $title = $this->randomName(10);
    $description = $this->randomName(100);

    $edit = array(
      'name' => $title, 
      'description' => $description, 
      'machine_name' => drupal_strtolower(drupal_substr($this->randomName(), 3, 9)),
    );

    // Edit the vocabulary.
    $this->drupalPost('admin/structure/taxonomy/' . $original_settings->machine_name . '/edit', $edit, t('Save'));
    $this->assertResponse(200);
    $this->assertRaw(t('Updated vocabulary %name.', array('%name' => $title)), t('Vocabulary was edited'));

    // Grab the newly edited vocabulary.
    entity_get_controller('taxonomy_vocabulary')->resetCache();
    $current_settings = taxonomy_vocabulary_load($vid);

    // Make sure we actually edited the vocabulary properly.
    $this->assertEqual($current_settings->name, $title, t('The name was updated'));
    $this->assertEqual($current_settings->description, $description, t('The description was updated'));

    // Restore the original vocabulary.
    taxonomy_vocabulary_save($original_settings);
    drupal_static_reset('taxonomy_vocabulary_load');
    $current_settings = taxonomy_vocabulary_load($vid);
    $this->assertEqual($current_settings->name, $original_settings->name, 'The original vocabulary settings were restored');
  }

  /**
   * Create a forum container or a forum.
   *
   * @param $type
   *   Forum type (forum container or forum).
   * @param $parent
   *   Forum parent (default = 0 = a root forum; >0 = a forum container or
   *   another forum).
   * @return
   *   taxonomy_term_data created.
   */
  function createForum($type, $parent = 0) {
    // Generate a random name/description.
    $name = $this->randomName(10);
    $description = $this->randomName(100);

    $edit = array(
      'name' => $name, 
      'description' => $description, 
      'parent[0]' => $parent, 
      'weight' => '0',
    );

    // Create forum.
    $this->drupalPost('admin/structure/forum/add/' . $type, $edit, t('Save'));
    $this->assertResponse(200);
    $type = ($type == 'container') ? 'forum container' : 'forum';
    $this->assertRaw(t('Created new @type %term.', array('%term' => $name, '@type' => t($type))), t(ucfirst($type) . ' was created'));

    // Verify forum.
    $term = db_query("SELECT * FROM {taxonomy_term_data} t WHERE t.vid = :vid AND t.name = :name AND t.description = :desc", array(':vid' => variable_get('forum_nav_vocabulary', ''), ':name' => $name, ':desc' => $description))->fetchAssoc();
    $this->assertTrue(!empty($term), 'The ' . $type . ' exists in the database');

    // Verify forum hierarchy.
    $tid = $term['tid'];
    $parent_tid = db_query("SELECT t.parent FROM {taxonomy_term_hierarchy} t WHERE t.tid = :tid", array(':tid' => $tid))->fetchField();
    $this->assertTrue($parent == $parent_tid, 'The ' . $type . ' is linked to its container');

    return $term;
  }

  /**
   * Delete a forum.
   *
   * @param $tid
   *   The forum ID.
   */
  function deleteForum($tid) {
    // Delete the forum.
    $this->drupalPost('admin/structure/forum/edit/forum/' . $tid, array(), t('Delete'));
    $this->drupalPost(NULL, array(), t('Delete'));

    // Assert that the forum no longer exists.
    $this->drupalGet('forum/' . $tid);
    $this->assertResponse(404, 'The forum was not found');
  }

  /**
   * Run basic tests on the indicated user.
   *
   * @param $user
   *   The logged in user.
   * @param $admin
   *   User has 'access administration pages' privilege.
   */
  private function doBasicTests($user, $admin) {
    // Login the user.
    $this->drupalLogin($user);
    // Attempt to create forum topic under a container.
    $this->createForumTopic($this->container, TRUE);
    // Create forum node.
    $node = $this->createForumTopic($this->forum, FALSE);
    // Verify the user has access to all the forum nodes.
    $this->verifyForums($user, $node, $admin);
  }

  /**
   * Create forum topic.
   *
   * @param array $forum
   *   Forum array.
   * @param boolean $container
   *   True if $forum is a container.
   *
   * @return object
   *   Topic node created.
   */
  function createForumTopic($forum, $container = FALSE) {
    // Generate a random subject/body.
    $title = $this->randomName(20);
    $body = $this->randomName(200);

    $langcode = LANGUAGE_NONE;
    $edit = array(
      "title" => $title, 
      "body[$langcode][0][value]" => $body,
    );
    $tid = $forum['tid'];

    // Create the forum topic, preselecting the forum ID via a URL parameter.
    $this->drupalPost('node/add/forum/' . $tid, $edit, t('Save'));

    $type = t('Forum topic');
    if ($container) {
      $this->assertNoRaw(t('@type %title has been created.', array('@type' => $type, '%title' => $title)), t('Forum topic was not created'));
      $this->assertRaw(t('The item %title is a forum container, not a forum.', array('%title' => $forum['name'])), t('Error message was shown'));
      return;
    }
    else {
      $this->assertRaw(t('@type %title has been created.', array('@type' => $type, '%title' => $title)), t('Forum topic was created'));
      $this->assertNoRaw(t('The item %title is a forum container, not a forum.', array('%title' => $forum['name'])), t('No error message was shown'));
    }

    // Retrieve node object, ensure that the topic was created and in the proper forum.
    $node = $this->drupalGetNodeByTitle($title);
    $this->assertTrue($node != NULL, t('Node @title was loaded', array('@title' => $title)));
    $this->assertEqual($node->taxonomy_forums[LANGUAGE_NONE][0]['tid'], $tid, 'Saved forum topic was in the expected forum');

    // View forum topic.
    $this->drupalGet('node/' . $node->nid);
    $this->assertRaw($title, t('Subject was found'));
    $this->assertRaw($body, t('Body was found'));

    return $node;
  }

  /**
   * Verify the logged in user has access to a forum nodes.
   *
   * @param $node_user
   *   The user who creates the node.
   * @param $node
   *   The node being checked.
   * @param $admin
   *   Boolean to indicate whether the user can 'access administration pages'.
   * @param $response
   *   The exptected HTTP response code.
   */
  private function verifyForums($node_user, $node, $admin, $response = 200) {
    $response2 = ($admin) ? 200 : 403;

    // View forum help node.
    $this->drupalGet('admin/help/forum');
    $this->assertResponse($response2);
    if ($response2 == 200) {
      $this->assertTitle(t('Forum | Drupal'), t('Forum help title was displayed'));
      $this->assertText(t('Forum'), t('Forum help node was displayed'));
    }

    // Verify the forum blocks were displayed.
    $this->drupalGet('');
    $this->assertResponse(200);
    $this->assertText(t('New forum topics'), t('[New forum topics] Forum block was displayed'));

    // View forum container page.
    $this->verifyForumView($this->container);
    // View forum page.
    $this->verifyForumView($this->forum, $this->container);
    // View root forum page.
    $this->verifyForumView($this->root_forum);

    // View forum node.
    $this->drupalGet('node/' . $node->nid);
    $this->assertResponse(200);
    $this->assertTitle($node->title . ' | Drupal', t('Forum node was displayed'));
    $breadcrumb = array(
      l(t('Home'), NULL),
      l(t('Forums'), 'forum'),
      l($this->container['name'], 'forum/' . $this->container['tid']),
      l($this->forum['name'], 'forum/' . $this->forum['tid']),
    );
    $this->assertRaw(theme('breadcrumb', array('breadcrumb' => $breadcrumb)), t('Breadcrumbs were displayed'));

    // View forum edit node.
    $this->drupalGet('node/' . $node->nid . '/edit');
    $this->assertResponse($response);
    if ($response == 200) {
      $this->assertTitle('Edit Forum topic ' . $node->title . ' | Drupal', t('Forum edit node was displayed'));
    }

    if ($response == 200) {
      // Edit forum node (including moving it to another forum).
      $edit = array();
      $langcode = LANGUAGE_NONE;
      $edit["title"] = 'node/' . $node->nid;
      $edit["body[$langcode][0][value]"] = $this->randomName(256);
      // Assume the topic is initially associated with $forum.
      $edit["taxonomy_forums[$langcode]"] = $this->root_forum['tid'];
      $edit['shadow'] = TRUE;
      $this->drupalPost('node/' . $node->nid . '/edit', $edit, t('Save'));
      $this->assertRaw(t('Forum topic %title has been updated.', array('%title' => $edit["title"])), t('Forum node was edited'));

      // Verify topic was moved to a different forum.
      $forum_tid = db_query("SELECT tid FROM {forum} WHERE nid = :nid AND vid = :vid", array(
        ':nid' => $node->nid, 
        ':vid' => $node->vid,
      ))->fetchField();
      $this->assertTrue($forum_tid == $this->root_forum['tid'], 'The forum topic is linked to a different forum');

      // Delete forum node.
      $this->drupalPost('node/' . $node->nid . '/delete', array(), t('Delete'));
      $this->assertResponse($response);
      $this->assertRaw(t('Forum topic %title has been deleted.', array('%title' => $edit['title'])), t('Forum node was deleted'));
    }
  }

  /**
   * Verify display of forum page.
   *
   * @param $forum
   *   A row from taxonomy_term_data table in array.
   */
  private function verifyForumView($forum, $parent = NULL) {
    // View forum page.
    $this->drupalGet('forum/' . $forum['tid']);
    $this->assertResponse(200);
    $this->assertTitle($forum['name'] . ' | Drupal', t('Forum name was displayed'));

    $breadcrumb = array(
      l(t('Home'), NULL),
      l(t('Forums'), 'forum'),
    );
    if (isset($parent)) {
      $breadcrumb[] = l($parent['name'], 'forum/' . $parent['tid']);
    }

    $this->assertRaw(theme('breadcrumb', array('breadcrumb' => $breadcrumb)), t('Breadcrumbs were displayed'));
  }

  /**
   * Generate forum topics to test display of active forum block.
   *
   * @param array $forum Forum array (a row from taxonomy_term_data table).
   */
  private function generateForumTopics($forum) {
    $this->nids = array();
    for ($i = 0; $i < 5; $i++) {
      $node = $this->createForumTopic($this->forum, FALSE);
      $this->nids[] = $node->nid;
    }
  }

  /**
   * View forum topics to test display of active forum block.
   *
   * @todo The logic here is completely incorrect, since the active
   * forum topics block is determined by comments on the node, not by views.
   * @todo DIE
   *
   * @param $nids
   *   An array of forum node IDs.
   */
  private function viewForumTopics($nids) {
    for ($i = 0; $i < 2; $i++) {
      foreach ($nids as $nid) {
        $this->drupalGet('node/' . $nid);
        $this->drupalGet('node/' . $nid);
        $this->drupalGet('node/' . $nid);
      }
    }
  }
}
?>