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MenuBreadcrumbTestCase

  1. drupal
    1. 7 drupal/modules/simpletest/tests/menu.test

Menu breadcrumbs related tests.

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.

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
MenuBreadcrumbTestCase::assertBreadcrumbAssert that a given path shows certain breadcrumb links.
MenuBreadcrumbTestCase::getInfo
MenuBreadcrumbTestCase::getPartsReturns the breadcrumb contents of the current page in the internal browser.
MenuBreadcrumbTestCase::setUpGenerates a random database prefix, runs the install scripts on the prefixed database and enable the specified modules. After installation many caches are flushed and the internal browser is setup so that the page requests will run on the new prefix.… Overrides DrupalWebTestCase::setUp
MenuBreadcrumbTestCase::testBreadCrumbsTests breadcrumbs on node and administrative paths.

File

drupal/modules/simpletest/tests/menu.test, line 928
Provides SimpleTests for menu.inc.

View source
class MenuBreadcrumbTestCase extends DrupalWebTestCase {
  public static function getInfo() {
    return array(
      'name' => 'Breadcrumbs', 
      'description' => 'Tests breadcrumbs functionality.', 
      'group' => 'Menu',
    );
  }

  function setUp() {
    parent::setUp(array('menu_test'));
    $perms = array_keys(module_invoke_all('permission'));
    $this->admin_user = $this->drupalCreateUser($perms);
    $this->drupalLogin($this->admin_user);

    // This test puts menu links in the Navigation menu and then tests for
    // their presence on the page, so we need to ensure that the Navigation
    // block will be displayed in all active themes.
    db_update('block')
      ->fields(array(
      // Use a region that is valid for all themes.
      'region' => 'content', 
      'status' => 1,
    ))
      ->condition('module', 'system')
      ->condition('delta', 'navigation')
      ->execute();
  }

  /**
   * Tests breadcrumbs on node and administrative paths.
   */
  function testBreadCrumbs() {
    // Prepare common base breadcrumb elements.
    $home = array('<front>' => 'Home');
    $admin = $home + array('admin' => t('Administration'));
    $config = $admin + array('admin/config' => t('Configuration'));
    $type = 'article';
    $langcode = LANGUAGE_NONE;

    // Verify breadcrumbs for default local tasks.
    $expected = array(
      'menu-test' => t('Menu test root'),
    );
    $title = t('Breadcrumbs test: Local tasks');
    $trail = $home + $expected;
    $tree = $expected + array(
      'menu-test/breadcrumb/tasks' => $title,
    );
    $this->assertBreadcrumb('menu-test/breadcrumb/tasks', $trail, $title, $tree);
    $this->assertBreadcrumb('menu-test/breadcrumb/tasks/first', $trail, $title, $tree);
    $this->assertBreadcrumb('menu-test/breadcrumb/tasks/first/first', $trail, $title, $tree);
    $trail += array(
      'menu-test/breadcrumb/tasks' => t('Breadcrumbs test: Local tasks'),
    );
    $this->assertBreadcrumb('menu-test/breadcrumb/tasks/first/second', $trail, $title, $tree);
    $this->assertBreadcrumb('menu-test/breadcrumb/tasks/second', $trail, $title, $tree);
    $this->assertBreadcrumb('menu-test/breadcrumb/tasks/second/first', $trail, $title, $tree);
    $trail += array(
      'menu-test/breadcrumb/tasks/second' => t('Second'),
    );
    $this->assertBreadcrumb('menu-test/breadcrumb/tasks/second/second', $trail, $title, $tree);

    // Verify Taxonomy administration breadcrumbs.
    $trail = $admin + array(
      'admin/structure' => t('Structure'),
    );
    $this->assertBreadcrumb('admin/structure/taxonomy', $trail);

    $trail += array(
      'admin/structure/taxonomy' => t('Taxonomy'),
    );
    $this->assertBreadcrumb('admin/structure/taxonomy/tags', $trail);
    $trail += array(
      'admin/structure/taxonomy/tags' => t('Tags'),
    );
    $this->assertBreadcrumb('admin/structure/taxonomy/tags/edit', $trail);
    $this->assertBreadcrumb('admin/structure/taxonomy/tags/fields', $trail);
    $this->assertBreadcrumb('admin/structure/taxonomy/tags/add', $trail);

    // Verify Menu administration breadcrumbs.
    $trail = $admin + array(
      'admin/structure' => t('Structure'),
    );
    $this->assertBreadcrumb('admin/structure/menu', $trail);

    $trail += array(
      'admin/structure/menu' => t('Menus'),
    );
    $this->assertBreadcrumb('admin/structure/menu/manage/navigation', $trail);
    $trail += array(
      'admin/structure/menu/manage/navigation' => t('Navigation'),
    );
    $this->assertBreadcrumb('admin/structure/menu/manage/navigation/edit', $trail);
    $this->assertBreadcrumb('admin/structure/menu/manage/navigation/add', $trail);

    // Verify Node administration breadcrumbs.
    $trail = $admin + array(
      'admin/structure' => t('Structure'), 
      'admin/structure/types' => t('Content types'),
    );
    $this->assertBreadcrumb('admin/structure/types/add', $trail);
    $this->assertBreadcrumb("admin/structure/types/manage/$type", $trail);
    $trail += array(
      "admin/structure/types/manage/$type" => t('Article'),
    );
    $this->assertBreadcrumb("admin/structure/types/manage/$type/fields", $trail);
    $this->assertBreadcrumb("admin/structure/types/manage/$type/display", $trail);
    $trail_teaser = $trail + array(
      "admin/structure/types/manage/$type/display" => t('Manage display'),
    );
    $this->assertBreadcrumb("admin/structure/types/manage/$type/display/teaser", $trail_teaser);
    $this->assertBreadcrumb("admin/structure/types/manage/$type/comment/fields", $trail);
    $this->assertBreadcrumb("admin/structure/types/manage/$type/comment/display", $trail);
    $this->assertBreadcrumb("admin/structure/types/manage/$type/delete", $trail);
    $trail += array(
      "admin/structure/types/manage/$type/fields" => t('Manage fields'),
    );
    $this->assertBreadcrumb("admin/structure/types/manage/$type/fields/body", $trail);
    $trail += array(
      "admin/structure/types/manage/$type/fields/body" => t('Body'),
    );
    $this->assertBreadcrumb("admin/structure/types/manage/$type/fields/body/widget-type", $trail);

    // Verify Filter text format administration breadcrumbs.
    $format = db_query_range("SELECT format, name FROM {filter_format}", 1, 1)->fetch();
    $format_id = $format->format;
    $trail = $config + array(
      'admin/config/content' => t('Content authoring'),
    );
    $this->assertBreadcrumb('admin/config/content/formats', $trail);

    $trail += array(
      'admin/config/content/formats' => t('Text formats'),
    );
    $this->assertBreadcrumb('admin/config/content/formats/add', $trail);
    $this->assertBreadcrumb("admin/config/content/formats/$format_id", $trail);
    $trail += array(
      "admin/config/content/formats/$format_id" => $format->name,
    );
    $this->assertBreadcrumb("admin/config/content/formats/$format_id/disable", $trail);

    // Verify node breadcrumbs (without menu link).
    $node1 = $this->drupalCreateNode();
    $nid1 = $node1->nid;
    $trail = $home;
    $this->assertBreadcrumb("node/$nid1", $trail);
    // Also verify that the node does not appear elsewhere (e.g., menu trees).
    $this->assertNoLink($node1->title);
    // The node itself should not be contained in the breadcrumb on the default
    // local task, since there is no difference between both pages.
    $this->assertBreadcrumb("node/$nid1/view", $trail);
    // Also verify that the node does not appear elsewhere (e.g., menu trees).
    $this->assertNoLink($node1->title);

    $trail += array(
      "node/$nid1" => $node1->title,
    );
    $this->assertBreadcrumb("node/$nid1/edit", $trail);

    // Verify that breadcrumb on node listing page contains "Home" only.
    $trail = array();
    $this->assertBreadcrumb('node', $trail);

    // Verify node breadcrumbs (in menu).
    // Do this separately for Main menu and Navigation menu, since only the
    // latter is a preferred menu by default.
    // @todo Also test all themes? Manually testing led to the suspicion that
//   breadcrumbs may differ, possibly due to template.php overrides.
    $menus = array('main-menu', 'navigation');
    // Alter node type menu settings.
    variable_set("menu_options_$type", $menus);
    variable_set("menu_parent_$type", 'navigation:0');

    foreach ($menus as $menu) {
      // Create a parent node in the current menu.
      $title = $this->randomName();
      $node2 = $this->drupalCreateNode(array(
        'type' => $type, 
        'title' => $title, 
        'menu' => array(
          'enabled' => 1, 
          'link_title' => 'Parent ' . $title, 
          'description' => '', 
          'menu_name' => $menu, 
          'plid' => 0,
        ),
      ));
      $nid2 = $node2->nid;

      $trail = $home;
      $tree = array(
        "node/$nid2" => $node2->menu['link_title'],
      );
      $this->assertBreadcrumb("node/$nid2", $trail, $node2->title, $tree);
      // The node itself should not be contained in the breadcrumb on the
      // default local task, since there is no difference between both pages.
      $this->assertBreadcrumb("node/$nid2/view", $trail, $node2->title, $tree);
      $trail += array(
        "node/$nid2" => $node2->menu['link_title'],
      );
      $this->assertBreadcrumb("node/$nid2/edit", $trail);

      // Create a child node in the current menu.
      $title = $this->randomName();
      $node3 = $this->drupalCreateNode(array(
        'type' => $type, 
        'title' => $title, 
        'menu' => array(
          'enabled' => 1, 
          'link_title' => 'Child ' . $title, 
          'description' => '', 
          'menu_name' => $menu, 
          'plid' => $node2->menu['mlid'],
        ),
      ));
      $nid3 = $node3->nid;

      $this->assertBreadcrumb("node/$nid3", $trail, $node3->title, $tree, FALSE);
      // The node itself should not be contained in the breadcrumb on the
      // default local task, since there is no difference between both pages.
      $this->assertBreadcrumb("node/$nid3/view", $trail, $node3->title, $tree, FALSE);
      $trail += array(
        "node/$nid3" => $node3->menu['link_title'],
      );
      $tree += array(
        "node/$nid3" => $node3->menu['link_title'],
      );
      $this->assertBreadcrumb("node/$nid3/edit", $trail);

      // Verify that node listing page still contains "Home" only.
      $trail = array();
      $this->assertBreadcrumb('node', $trail);

      if ($menu == 'navigation') {
        $parent = $node2;
        $child = $node3;
      }
    }

    // Create a Navigation menu link for 'node', move the last parent node menu
    // link below it, and verify a full breadcrumb for the last child node.
    $menu = 'navigation';
    $edit = array(
      'link_title' => 'Root', 
      'link_path' => 'node',
    );
    $this->drupalPost("admin/structure/menu/manage/$menu/add", $edit, t('Save'));
    $link = db_query('SELECT * FROM {menu_links} WHERE link_title = :title', array(':title' => 'Root'))->fetchAssoc();

    $edit = array(
      'menu[parent]' => $link['menu_name'] . ':' . $link['mlid'],
    );
    $this->drupalPost("node/{$parent->nid}/edit", $edit, t('Save'));
    $expected = array(
      "node" => $link['link_title'],
    );
    $trail = $home + $expected;
    $tree = $expected + array(
      "node/{$parent->nid}" => $parent->menu['link_title'],
    );
    $this->assertBreadcrumb(NULL, $trail, $parent->title, $tree);
    $trail += array(
      "node/{$parent->nid}" => $parent->menu['link_title'],
    );
    $tree += array(
      "node/{$child->nid}" => $child->menu['link_title'],
    );
    $this->assertBreadcrumb("node/{$child->nid}", $trail, $child->title, $tree);

    // Add a taxonomy term/tag to last node, and add a link for that term to the
    // Navigation menu.
    $tags = array(
      'Drupal' => array(), 
      'Breadcrumbs' => array(),
    );
    $edit = array(
      "field_tags[$langcode]" => implode(',', array_keys($tags)),
    );
    $this->drupalPost("node/{$parent->nid}/edit", $edit, t('Save'));

    // Put both terms into a hierarchy Drupal » Breadcrumbs. Required for both
    // the menu links and the terms itself, since taxonomy_term_page() resets
    // the breadcrumb based on taxonomy term hierarchy.
    $parent_tid = 0;
    foreach ($tags as $name => $null) {
      $terms = taxonomy_term_load_multiple(NULL, array('name' => $name));
      $term = reset($terms);
      $tags[$name]['term'] = $term;
      if ($parent_tid) {
        $edit = array(
          'parent[]' => array($parent_tid),
        );
        $this->drupalPost("taxonomy/term/{$term->tid}/edit", $edit, t('Save'));
      }
      $parent_tid = $term->tid;
    }
    $parent_mlid = 0;
    foreach ($tags as $name => $data) {
      $term = $data['term'];
      $edit = array(
        'link_title' => "$name link", 
        'link_path' => "taxonomy/term/{$term->tid}", 
        'parent' => "$menu:{$parent_mlid}",
      );
      $this->drupalPost("admin/structure/menu/manage/$menu/add", $edit, t('Save'));
      $tags[$name]['link'] = db_query('SELECT * FROM {menu_links} WHERE link_title = :title AND link_path = :href', array(
        ':title' => $edit['link_title'], 
        ':href' => $edit['link_path'],
      ))->fetchAssoc();
      $tags[$name]['link']['link_path'] = $edit['link_path'];
      $parent_mlid = $tags[$name]['link']['mlid'];
    }

    // Verify expected breadcrumbs for menu links.
    $trail = $home;
    $tree = array();
    foreach ($tags as $name => $data) {
      $term = $data['term'];
      $link = $data['link'];

      $tree += array(
        $link['link_path'] => $link['link_title'],
      );
      // @todo Normally, you'd expect $term->name as page title here.
      $this->assertBreadcrumb($link['link_path'], $trail, $link['link_title'], $tree);
      $this->assertRaw(check_plain($parent->title), 'Tagged node found.');

      // Additionally make sure that this link appears only once; i.e., the
      // untranslated menu links automatically generated from menu router items
      // ('taxonomy/term/%') should never be translated and appear in any menu
      // other than the breadcrumb trail.
      $elements = $this->xpath('//div[@id=:menu]/descendant::a[@href=:href]', array(
        ':menu' => 'block-system-navigation', 
        ':href' => url($link['link_path']),
      ));
      $this->assertTrue(count($elements) == 1, "Link to {$link['link_path']} appears only once.");

      // Next iteration should expect this tag as parent link.
      // Note: Term name, not link name, due to taxonomy_term_page().
      $trail += array(
        $link['link_path'] => $term->name,
      );
    }

    // Verify breadcrumbs on user and user/%.
    // We need to log back in and out below, and cannot simply grant the
    // 'administer users' permission, since user_page() makes your head explode.
    user_role_grant_permissions(DRUPAL_ANONYMOUS_RID, array(
      'access user profiles',
    ));
    $this->drupalLogout();

    // Verify breadcrumb on front page.
    $this->assertBreadcrumb('<front>', array());

    // Verify breadcrumb on user pages (without menu link) for anonymous user.
    $trail = $home;
    $this->assertBreadcrumb('user', $trail, t('User account'));
    $this->assertBreadcrumb('user/' . $this->admin_user->uid, $trail, $this->admin_user->name);

    // Verify breadcrumb on user pages (without menu link) for registered users.
    $this->drupalLogin($this->admin_user);
    $trail = $home;
    $this->assertBreadcrumb('user', $trail, $this->admin_user->name);
    $this->assertBreadcrumb('user/' . $this->admin_user->uid, $trail, $this->admin_user->name);
    $trail += array(
      'user/' . $this->admin_user->uid => $this->admin_user->name,
    );
    $this->assertBreadcrumb('user/' . $this->admin_user->uid . '/edit', $trail, $this->admin_user->name);

    // Create a second user to verify breadcrumb on user pages again.
    $this->web_user = $this->drupalCreateUser(array(
      'administer users',
      'access user profiles',
    ));
    $this->drupalLogin($this->web_user);

    // Verify correct breadcrumb and page title on another user's account pages
    // (without menu link).
    $trail = $home;
    $this->assertBreadcrumb('user/' . $this->admin_user->uid, $trail, $this->admin_user->name);
    $trail += array(
      'user/' . $this->admin_user->uid => $this->admin_user->name,
    );
    $this->assertBreadcrumb('user/' . $this->admin_user->uid . '/edit', $trail, $this->admin_user->name);

    // Verify correct breadcrumb and page title when viewing own user account
    // pages (without menu link).
    $trail = $home;
    $this->assertBreadcrumb('user/' . $this->web_user->uid, $trail, $this->web_user->name);
    $trail += array(
      'user/' . $this->web_user->uid => $this->web_user->name,
    );
    $this->assertBreadcrumb('user/' . $this->web_user->uid . '/edit', $trail, $this->web_user->name);

    // Add a Navigation menu links for 'user' and $this->admin_user.
    // Although it may be faster to manage these links via low-level API
    // functions, there's a lot that can go wrong in doing so.
    $this->drupalLogin($this->admin_user);
    $edit = array(
      'link_title' => 'User', 
      'link_path' => 'user',
    );
    $this->drupalPost("admin/structure/menu/manage/$menu/add", $edit, t('Save'));
    $link_user = db_query('SELECT * FROM {menu_links} WHERE link_title = :title AND link_path = :href', array(
      ':title' => $edit['link_title'], 
      ':href' => $edit['link_path'],
    ))->fetchAssoc();

    $edit = array(
      'link_title' => $this->admin_user->name . ' link', 
      'link_path' => 'user/' . $this->admin_user->uid,
    );
    $this->drupalPost("admin/structure/menu/manage/$menu/add", $edit, t('Save'));
    $link_admin_user = db_query('SELECT * FROM {menu_links} WHERE link_title = :title AND link_path = :href', array(
      ':title' => $edit['link_title'], 
      ':href' => $edit['link_path'],
    ))->fetchAssoc();

    // Verify expected breadcrumbs for the two separate links.
    $this->drupalLogout();
    $trail = $home;
    $tree = array(
      $link_user['link_path'] => $link_user['link_title'],
    );
    $this->assertBreadcrumb('user', $trail, $link_user['link_title'], $tree);
    $tree = array(
      $link_admin_user['link_path'] => $link_admin_user['link_title'],
    );
    $this->assertBreadcrumb('user/' . $this->admin_user->uid, $trail, $link_admin_user['link_title'], $tree);

    $this->drupalLogin($this->admin_user);
    $trail += array(
      $link_admin_user['link_path'] => $link_admin_user['link_title'],
    );
    $this->assertBreadcrumb('user/' . $this->admin_user->uid . '/edit', $trail, $link_admin_user['link_title'], $tree, FALSE);

    // Move 'user/%' below 'user' and verify again.
    $edit = array(
      'parent' => "$menu:{$link_user['mlid']}",
    );
    $this->drupalPost("admin/structure/menu/item/{$link_admin_user['mlid']}/edit", $edit, t('Save'));

    $this->drupalLogout();
    $trail = $home;
    $tree = array(
      $link_user['link_path'] => $link_user['link_title'],
    );
    $this->assertBreadcrumb('user', $trail, $link_user['link_title'], $tree);
    $trail += array(
      $link_user['link_path'] => $link_user['link_title'],
    );
    $tree += array(
      $link_admin_user['link_path'] => $link_admin_user['link_title'],
    );
    $this->assertBreadcrumb('user/' . $this->admin_user->uid, $trail, $link_admin_user['link_title'], $tree);

    $this->drupalLogin($this->admin_user);
    $trail += array(
      $link_admin_user['link_path'] => $link_admin_user['link_title'],
    );
    $this->assertBreadcrumb('user/' . $this->admin_user->uid . '/edit', $trail, $link_admin_user['link_title'], $tree, FALSE);

    // Create an only slightly privileged user being able to access site reports
    // but not administration pages.
    $this->web_user = $this->drupalCreateUser(array(
      'access site reports',
    ));
    $this->drupalLogin($this->web_user);

    // Verify that we can access recent log entries, there is a corresponding
    // page title, and that the breadcrumb is empty (because the user is not
    // able to access "Administer", so the trail cannot recurse into it).
    $trail = array();
    $this->assertBreadcrumb('admin', $trail, t('Access denied'));
    $this->assertResponse(403);

    $trail = $home;
    $this->assertBreadcrumb('admin/reports', $trail, t('Reports'));
    $this->assertNoResponse(403);

    $this->assertBreadcrumb('admin/reports/dblog', $trail, t('Recent log messages'));
    $this->assertNoResponse(403);
  }

  /**
   * Assert that a given path shows certain breadcrumb links.
   *
   * @param string $goto
   *   (optional) A system path to pass to DrupalWebTestCase::drupalGet().
   * @param array $trail
   *   An associative array whose keys are expected breadcrumb link paths and
   *   whose values are expected breadcrumb link texts (not sanitized).
   * @param string $page_title
   *   (optional) A page title to additionally assert via
   *   DrupalWebTestCase::assertTitle(). Without site name suffix.
   * @param array $tree
   *   (optional) An associative array whose keys are link paths and whose
   *   values are link titles (not sanitized) of an expected active trail in a
   *   menu tree output on the page.
   * @param $last_active
   *   (optional) Whether the last link in $tree is expected to be active (TRUE)
   *   or just to be in the active trail (FALSE).
   */
  protected function assertBreadcrumb($goto, array $trail, $page_title = NULL, array $tree = array(), $last_active = TRUE) {
    if (isset($goto)) {
      $this->drupalGet($goto);
    }
    // Compare paths with actual breadcrumb.
    $parts = $this->getParts();
    $pass = TRUE;
    foreach ($trail as $path => $title) {
      $url = url($path);
      $part = array_shift($parts);
      $pass = ($pass && $part['href'] === $url && $part['text'] === check_plain($title));
    }
    // No parts must be left, or an expected "Home" will always pass.
    $pass = ($pass && empty($parts));

    $this->assertTrue($pass, t('Breadcrumb %parts found on @path.', array(
      '%parts' => implode(' » ', $trail), 
      '@path' => $this->getUrl(),
    )));

    // Additionally assert page title, if given.
    if (isset($page_title)) {
      $this->assertTitle(strtr('@title | Drupal', array('@title' => $page_title)));
    }

    // Additionally assert active trail in a menu tree output, if given.
    if ($tree) {
      end($tree);
      $active_link_path = key($tree);
      $active_link_title = array_pop($tree);
      $xpath = '';
      if ($tree) {
        $i = 0;
        foreach ($tree as $link_path => $link_title) {
          $part_xpath = (!$i ? '//' : '/following-sibling::ul/descendant::');
          $part_xpath .= 'li[contains(@class, :class)]/a[contains(@href, :href) and contains(text(), :title)]';
          $part_args = array(
            ':class' => 'active-trail', 
            ':href' => url($link_path), 
            ':title' => $link_title,
          );
          $xpath .= $this->buildXPathQuery($part_xpath, $part_args);
          $i++;
        }
        $elements = $this->xpath($xpath);
        $this->assertTrue(!empty($elements), t('Active trail to current page was found in menu tree.'));

        // Append prefix for active link asserted below.
        $xpath .= '/following-sibling::ul/descendant::';
      }
      else {
        $xpath .= '//';
      }
      $xpath_last_active = ($last_active ? 'and contains(@class, :class-active)' : '');
      $xpath .= 'li[contains(@class, :class-trail)]/a[contains(@href, :href) ' . $xpath_last_active . 'and contains(text(), :title)]';
      $args = array(
        ':class-trail' => 'active-trail', 
        ':class-active' => 'active', 
        ':href' => url($active_link_path), 
        ':title' => $active_link_title,
      );
      $elements = $this->xpath($xpath, $args);
      $this->assertTrue(!empty($elements), t('Active link %title was found in menu tree, including active trail links %tree.', array(
        '%title' => $active_link_title, 
        '%tree' => implode(' » ', $tree),
      )));
    }
  }

  /**
   * Returns the breadcrumb contents of the current page in the internal browser.
   */
  protected function getParts() {
    $parts = array();
    $elements = $this->xpath('//div[@class="breadcrumb"]/a');
    if (!empty($elements)) {
      foreach ($elements as $element) {
        $parts[] = array(
          'text' => (string) $element, 
          'href' => (string) $element['href'], 
          'title' => (string) $element['title'],
        );
      }
    }
    return $parts;
  }
}