diff -r 07239de796bb -r e756a8c72c3d cms/drupal/modules/simpletest/tests/menu.test
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cms/drupal/modules/simpletest/tests/menu.test	Fri Sep 08 12:04:06 2017 +0200
@@ -0,0 +1,1740 @@
+<?php
+
+/**
+ * @file
+ * Provides SimpleTests for menu.inc.
+ */
+
+class MenuWebTestCase extends DrupalWebTestCase {
+  function setUp() {
+    $modules = func_get_args();
+    if (isset($modules[0]) && is_array($modules[0])) {
+      $modules = $modules[0];
+    }
+    parent::setUp($modules);
+  }
+
+  /**
+   * 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, format_string('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), '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), format_string('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;
+  }
+}
+
+class MenuRouterTestCase extends DrupalWebTestCase {
+  public static function getInfo() {
+    return array(
+      'name' => 'Menu router',
+      'description' => 'Tests menu router and hook_menu() functionality.',
+      'group' => 'Menu',
+    );
+  }
+
+  function setUp() {
+    // Enable dummy module that implements hook_menu.
+    parent::setUp('menu_test');
+    // Make the tests below more robust by explicitly setting the default theme
+    // and administrative theme that they expect.
+    theme_enable(array('bartik'));
+    variable_set('theme_default', 'bartik');
+    variable_set('admin_theme', 'seven');
+  }
+
+  /**
+   * Test title callback set to FALSE.
+   */
+  function testTitleCallbackFalse() {
+    $this->drupalGet('node');
+    $this->assertText('A title with @placeholder', 'Raw text found on the page');
+    $this->assertNoText(t('A title with @placeholder', array('@placeholder' => 'some other text')), 'Text with placeholder substitutions not found.');
+  }
+
+  /**
+   * Tests page title of MENU_CALLBACKs.
+   */
+  function testTitleMenuCallback() {
+    // Verify that the menu router item title is not visible.
+    $this->drupalGet('');
+    $this->assertNoText(t('Menu Callback Title'));
+    // Verify that the menu router item title is output as page title.
+    $this->drupalGet('menu_callback_title');
+    $this->assertText(t('Menu Callback Title'));
+  }
+
+  /**
+   * Test the theme callback when it is set to use an administrative theme.
+   */
+  function testThemeCallbackAdministrative() {
+    $this->drupalGet('menu-test/theme-callback/use-admin-theme');
+    $this->assertText('Custom theme: seven. Actual theme: seven.', 'The administrative theme can be correctly set in a theme callback.');
+    $this->assertRaw('seven/style.css', "The administrative theme's CSS appears on the page.");
+  }
+
+  /**
+   * Test that the theme callback is properly inherited.
+   */
+  function testThemeCallbackInheritance() {
+    $this->drupalGet('menu-test/theme-callback/use-admin-theme/inheritance');
+    $this->assertText('Custom theme: seven. Actual theme: seven. Theme callback inheritance is being tested.', 'Theme callback inheritance correctly uses the administrative theme.');
+    $this->assertRaw('seven/style.css', "The administrative theme's CSS appears on the page.");
+  }
+
+  /**
+   * Test that 'page callback', 'file' and 'file path' keys are properly
+   * inherited from parent menu paths.
+   */
+  function testFileInheritance() {
+    $this->drupalGet('admin/config/development/file-inheritance');
+    $this->assertText('File inheritance test description', 'File inheritance works.');
+  }
+
+  /**
+   * Test path containing "exotic" characters.
+   */
+  function testExoticPath() {
+    $path = "menu-test/ -._~!$'\"()*@[]?&+%#,;=:" . // "Special" ASCII characters.
+      "%23%25%26%2B%2F%3F" . // Characters that look like a percent-escaped string.
+      "éøïвβ中國書۞"; // Characters from various non-ASCII alphabets.
+    $this->drupalGet($path);
+    $this->assertRaw('This is menu_test_callback().');
+  }
+
+  /**
+   * Test the theme callback when the site is in maintenance mode.
+   */
+  function testThemeCallbackMaintenanceMode() {
+    variable_set('maintenance_mode', TRUE);
+
+    // For a regular user, the fact that the site is in maintenance mode means
+    // we expect the theme callback system to be bypassed entirely.
+    $this->drupalGet('menu-test/theme-callback/use-admin-theme');
+    $this->assertRaw('bartik/css/style.css', "The maintenance theme's CSS appears on the page.");
+
+    // An administrator, however, should continue to see the requested theme.
+    $admin_user = $this->drupalCreateUser(array('access site in maintenance mode'));
+    $this->drupalLogin($admin_user);
+    $this->drupalGet('menu-test/theme-callback/use-admin-theme');
+    $this->assertText('Custom theme: seven. Actual theme: seven.', 'The theme callback system is correctly triggered for an administrator when the site is in maintenance mode.');
+    $this->assertRaw('seven/style.css', "The administrative theme's CSS appears on the page.");
+  }
+
+  /**
+   * Make sure the maintenance mode can be bypassed using hook_menu_site_status_alter().
+   *
+   * @see hook_menu_site_status_alter().
+   */
+  function testMaintenanceModeLoginPaths() {
+    variable_set('maintenance_mode', TRUE);
+
+    $offline_message = t('@site is currently under maintenance. We should be back shortly. Thank you for your patience.', array('@site' => variable_get('site_name', 'Drupal')));
+    $this->drupalLogout();
+    $this->drupalGet('node');
+    $this->assertText($offline_message);
+    $this->drupalGet('menu_login_callback');
+    $this->assertText('This is menu_login_callback().', t('Maintenance mode can be bypassed through hook_login_paths().'));
+  }
+
+  /**
+   * Test that an authenticated user hitting 'user/login' gets redirected to
+   * 'user' and 'user/register' gets redirected to the user edit page.
+   */
+  function testAuthUserUserLogin() {
+    $loggedInUser = $this->drupalCreateUser(array());
+    $this->drupalLogin($loggedInUser);
+
+    $this->drupalGet('user/login');
+    // Check that we got to 'user'.
+    $this->assertTrue($this->url == url('user', array('absolute' => TRUE)), "Logged-in user redirected to q=user on accessing q=user/login");
+
+    // user/register should redirect to user/UID/edit.
+    $this->drupalGet('user/register');
+    $this->assertTrue($this->url == url('user/' . $this->loggedInUser->uid . '/edit', array('absolute' => TRUE)), "Logged-in user redirected to q=user/UID/edit on accessing q=user/register");
+  }
+
+  /**
+   * Test the theme callback when it is set to use an optional theme.
+   */
+  function testThemeCallbackOptionalTheme() {
+    // Request a theme that is not enabled.
+    $this->drupalGet('menu-test/theme-callback/use-stark-theme');
+    $this->assertText('Custom theme: NONE. Actual theme: bartik.', 'The theme callback system falls back on the default theme when a theme that is not enabled is requested.');
+    $this->assertRaw('bartik/css/style.css', "The default theme's CSS appears on the page.");
+
+    // Now enable the theme and request it again.
+    theme_enable(array('stark'));
+    $this->drupalGet('menu-test/theme-callback/use-stark-theme');
+    $this->assertText('Custom theme: stark. Actual theme: stark.', 'The theme callback system uses an optional theme once it has been enabled.');
+    $this->assertRaw('stark/layout.css', "The optional theme's CSS appears on the page.");
+  }
+
+  /**
+   * Test the theme callback when it is set to use a theme that does not exist.
+   */
+  function testThemeCallbackFakeTheme() {
+    $this->drupalGet('menu-test/theme-callback/use-fake-theme');
+    $this->assertText('Custom theme: NONE. Actual theme: bartik.', 'The theme callback system falls back on the default theme when a theme that does not exist is requested.');
+    $this->assertRaw('bartik/css/style.css', "The default theme's CSS appears on the page.");
+  }
+
+  /**
+   * Test the theme callback when no theme is requested.
+   */
+  function testThemeCallbackNoThemeRequested() {
+    $this->drupalGet('menu-test/theme-callback/no-theme-requested');
+    $this->assertText('Custom theme: NONE. Actual theme: bartik.', 'The theme callback system falls back on the default theme when no theme is requested.');
+    $this->assertRaw('bartik/css/style.css', "The default theme's CSS appears on the page.");
+  }
+
+  /**
+   * Test that hook_custom_theme() can control the theme of a page.
+   */
+  function testHookCustomTheme() {
+    // Trigger hook_custom_theme() to dynamically request the Stark theme for
+    // the requested page.
+    variable_set('menu_test_hook_custom_theme_name', 'stark');
+    theme_enable(array('stark'));
+
+    // Visit a page that does not implement a theme callback. The above request
+    // should be honored.
+    $this->drupalGet('menu-test/no-theme-callback');
+    $this->assertText('Custom theme: stark. Actual theme: stark.', 'The result of hook_custom_theme() is used as the theme for the current page.');
+    $this->assertRaw('stark/layout.css', "The Stark theme's CSS appears on the page.");
+  }
+
+  /**
+   * Test that the theme callback wins out over hook_custom_theme().
+   */
+  function testThemeCallbackHookCustomTheme() {
+    // Trigger hook_custom_theme() to dynamically request the Stark theme for
+    // the requested page.
+    variable_set('menu_test_hook_custom_theme_name', 'stark');
+    theme_enable(array('stark'));
+
+    // The menu "theme callback" should take precedence over a value set in
+    // hook_custom_theme().
+    $this->drupalGet('menu-test/theme-callback/use-admin-theme');
+    $this->assertText('Custom theme: seven. Actual theme: seven.', 'The result of hook_custom_theme() does not override what was set in a theme callback.');
+    $this->assertRaw('seven/style.css', "The Seven theme's CSS appears on the page.");
+  }
+
+  /**
+   * Tests for menu_link_maintain().
+   */
+  function testMenuLinkMaintain() {
+    $admin_user = $this->drupalCreateUser(array('administer site configuration'));
+    $this->drupalLogin($admin_user);
+
+    // Create three menu items.
+    menu_link_maintain('menu_test', 'insert', 'menu_test_maintain/1', 'Menu link #1');
+    menu_link_maintain('menu_test', 'insert', 'menu_test_maintain/1', 'Menu link #1-1');
+    menu_link_maintain('menu_test', 'insert', 'menu_test_maintain/2', 'Menu link #2');
+
+    // Move second link to the main-menu, to test caching later on.
+    db_update('menu_links')
+      ->fields(array('menu_name' => 'main-menu'))
+      ->condition('link_title', 'Menu link #1-1')
+      ->condition('customized', 0)
+      ->condition('module', 'menu_test')
+      ->execute();
+    menu_cache_clear('main-menu');
+
+    // Load front page.
+    $this->drupalGet('node');
+    $this->assertLink(t('Menu link #1'), 0, 'Found menu link #1');
+    $this->assertLink(t('Menu link #1-1'), 0, 'Found menu link #1-1');
+    $this->assertLink(t('Menu link #2'), 0, 'Found menu link #2');
+
+    // Rename all links for the given path.
+    menu_link_maintain('menu_test', 'update', 'menu_test_maintain/1', 'Menu link updated');
+    // Load a different page to be sure that we have up to date information.
+    $this->drupalGet('menu_test_maintain/1');
+    $this->assertLink(t('Menu link updated'), 0, 'Found updated menu link');
+    $this->assertNoLink(t('Menu link #1'), 0, 'Not found menu link #1');
+    $this->assertNoLink(t('Menu link #1'), 0, 'Not found menu link #1-1');
+    $this->assertLink(t('Menu link #2'), 0, 'Found menu link #2');
+
+    // Delete all links for the given path.
+    menu_link_maintain('menu_test', 'delete', 'menu_test_maintain/1', '');
+    // Load a different page to be sure that we have up to date information.
+    $this->drupalGet('menu_test_maintain/2');
+    $this->assertNoLink(t('Menu link updated'), 0, 'Not found deleted menu link');
+    $this->assertNoLink(t('Menu link #1'), 0, 'Not found menu link #1');
+    $this->assertNoLink(t('Menu link #1'), 0, 'Not found menu link #1-1');
+    $this->assertLink(t('Menu link #2'), 0, 'Found menu link #2');
+  }
+
+  /**
+   * Test menu_get_names().
+   */
+  function testMenuGetNames() {
+    // Create three menu items.
+    for ($i = 0; $i < 3; $i++) {
+      $menu_link = array(
+        'link_title' => 'Menu link #' . $i,
+        'link_path' => 'menu_test/' . $i,
+        'module' => 'menu_test',
+        'menu_name' => 'menu_test_' . $i,
+      );
+      menu_link_save($menu_link);
+    }
+
+    drupal_static_reset('menu_get_names');
+
+    // Verify that the menu names are correctly reported by menu_get_names().
+    $menu_names = menu_get_names();
+    $this->pass(implode(' | ', $menu_names));
+    for ($i = 0; $i < 3; $i++) {
+      $this->assertTrue(in_array('menu_test_' . $i, $menu_names), t('Expected menu name %expected is returned.', array('%expected' => 'menu_test_' . $i)));
+    }
+  }
+
+  /**
+   * Tests for menu_name parameter for hook_menu().
+   */
+  function testMenuName() {
+    $admin_user = $this->drupalCreateUser(array('administer site configuration'));
+    $this->drupalLogin($admin_user);
+
+    $sql = "SELECT menu_name FROM {menu_links} WHERE router_path = 'menu_name_test'";
+    $name = db_query($sql)->fetchField();
+    $this->assertEqual($name, 'original', 'Menu name is "original".');
+
+    // Change the menu_name parameter in menu_test.module, then force a menu
+    // rebuild.
+    menu_test_menu_name('changed');
+    menu_rebuild();
+
+    $sql = "SELECT menu_name FROM {menu_links} WHERE router_path = 'menu_name_test'";
+    $name = db_query($sql)->fetchField();
+    $this->assertEqual($name, 'changed', 'Menu name was successfully changed after rebuild.');
+  }
+
+  /**
+   * Tests for menu hierarchy.
+   */
+  function testMenuHierarchy() {
+    $parent_link = db_query('SELECT * FROM {menu_links} WHERE link_path = :link_path', array(':link_path' => 'menu-test/hierarchy/parent'))->fetchAssoc();
+    $child_link = db_query('SELECT * FROM {menu_links} WHERE link_path = :link_path', array(':link_path' => 'menu-test/hierarchy/parent/child'))->fetchAssoc();
+    $unattached_child_link = db_query('SELECT * FROM {menu_links} WHERE link_path = :link_path', array(':link_path' => 'menu-test/hierarchy/parent/child2/child'))->fetchAssoc();
+
+    $this->assertEqual($child_link['plid'], $parent_link['mlid'], 'The parent of a directly attached child is correct.');
+    $this->assertEqual($unattached_child_link['plid'], $parent_link['mlid'], 'The parent of a non-directly attached child is correct.');
+  }
+
+  /**
+   * Tests menu link depth and parents of local tasks and menu callbacks.
+   */
+  function testMenuHidden() {
+    // Verify links for one dynamic argument.
+    $links = db_select('menu_links', 'ml')
+      ->fields('ml')
+      ->condition('ml.router_path', 'menu-test/hidden/menu%', 'LIKE')
+      ->orderBy('ml.router_path')
+      ->execute()
+      ->fetchAllAssoc('router_path', PDO::FETCH_ASSOC);
+
+    $parent = $links['menu-test/hidden/menu'];
+    $depth = $parent['depth'] + 1;
+    $plid = $parent['mlid'];
+
+    $link = $links['menu-test/hidden/menu/list'];
+    $this->assertEqual($link['depth'], $depth, format_string('%path depth @link_depth is equal to @depth.', array('%path' => $link['router_path'], '@link_depth' => $link['depth'], '@depth' => $depth)));
+    $this->assertEqual($link['plid'], $plid, format_string('%path plid @link_plid is equal to @plid.', array('%path' => $link['router_path'], '@link_plid' => $link['plid'], '@plid' => $plid)));
+
+    $link = $links['menu-test/hidden/menu/add'];
+    $this->assertEqual($link['depth'], $depth, format_string('%path depth @link_depth is equal to @depth.', array('%path' => $link['router_path'], '@link_depth' => $link['depth'], '@depth' => $depth)));
+    $this->assertEqual($link['plid'], $plid, format_string('%path plid @link_plid is equal to @plid.', array('%path' => $link['router_path'], '@link_plid' => $link['plid'], '@plid' => $plid)));
+
+    $link = $links['menu-test/hidden/menu/settings'];
+    $this->assertEqual($link['depth'], $depth, format_string('%path depth @link_depth is equal to @depth.', array('%path' => $link['router_path'], '@link_depth' => $link['depth'], '@depth' => $depth)));
+    $this->assertEqual($link['plid'], $plid, format_string('%path plid @link_plid is equal to @plid.', array('%path' => $link['router_path'], '@link_plid' => $link['plid'], '@plid' => $plid)));
+
+    $link = $links['menu-test/hidden/menu/manage/%'];
+    $this->assertEqual($link['depth'], $depth, format_string('%path depth @link_depth is equal to @depth.', array('%path' => $link['router_path'], '@link_depth' => $link['depth'], '@depth' => $depth)));
+    $this->assertEqual($link['plid'], $plid, format_string('%path plid @link_plid is equal to @plid.', array('%path' => $link['router_path'], '@link_plid' => $link['plid'], '@plid' => $plid)));
+
+    $parent = $links['menu-test/hidden/menu/manage/%'];
+    $depth = $parent['depth'] + 1;
+    $plid = $parent['mlid'];
+
+    $link = $links['menu-test/hidden/menu/manage/%/list'];
+    $this->assertEqual($link['depth'], $depth, format_string('%path depth @link_depth is equal to @depth.', array('%path' => $link['router_path'], '@link_depth' => $link['depth'], '@depth' => $depth)));
+    $this->assertEqual($link['plid'], $plid, format_string('%path plid @link_plid is equal to @plid.', array('%path' => $link['router_path'], '@link_plid' => $link['plid'], '@plid' => $plid)));
+
+    $link = $links['menu-test/hidden/menu/manage/%/add'];
+    $this->assertEqual($link['depth'], $depth, format_string('%path depth @link_depth is equal to @depth.', array('%path' => $link['router_path'], '@link_depth' => $link['depth'], '@depth' => $depth)));
+    $this->assertEqual($link['plid'], $plid, format_string('%path plid @link_plid is equal to @plid.', array('%path' => $link['router_path'], '@link_plid' => $link['plid'], '@plid' => $plid)));
+
+    $link = $links['menu-test/hidden/menu/manage/%/edit'];
+    $this->assertEqual($link['depth'], $depth, format_string('%path depth @link_depth is equal to @depth.', array('%path' => $link['router_path'], '@link_depth' => $link['depth'], '@depth' => $depth)));
+    $this->assertEqual($link['plid'], $plid, format_string('%path plid @link_plid is equal to @plid.', array('%path' => $link['router_path'], '@link_plid' => $link['plid'], '@plid' => $plid)));
+
+    $link = $links['menu-test/hidden/menu/manage/%/delete'];
+    $this->assertEqual($link['depth'], $depth, format_string('%path depth @link_depth is equal to @depth.', array('%path' => $link['router_path'], '@link_depth' => $link['depth'], '@depth' => $depth)));
+    $this->assertEqual($link['plid'], $plid, format_string('%path plid @link_plid is equal to @plid.', array('%path' => $link['router_path'], '@link_plid' => $link['plid'], '@plid' => $plid)));
+
+    // Verify links for two dynamic arguments.
+    $links = db_select('menu_links', 'ml')
+      ->fields('ml')
+      ->condition('ml.router_path', 'menu-test/hidden/block%', 'LIKE')
+      ->orderBy('ml.router_path')
+      ->execute()
+      ->fetchAllAssoc('router_path', PDO::FETCH_ASSOC);
+
+    $parent = $links['menu-test/hidden/block'];
+    $depth = $parent['depth'] + 1;
+    $plid = $parent['mlid'];
+
+    $link = $links['menu-test/hidden/block/list'];
+    $this->assertEqual($link['depth'], $depth, format_string('%path depth @link_depth is equal to @depth.', array('%path' => $link['router_path'], '@link_depth' => $link['depth'], '@depth' => $depth)));
+    $this->assertEqual($link['plid'], $plid, format_string('%path plid @link_plid is equal to @plid.', array('%path' => $link['router_path'], '@link_plid' => $link['plid'], '@plid' => $plid)));
+
+    $link = $links['menu-test/hidden/block/add'];
+    $this->assertEqual($link['depth'], $depth, format_string('%path depth @link_depth is equal to @depth.', array('%path' => $link['router_path'], '@link_depth' => $link['depth'], '@depth' => $depth)));
+    $this->assertEqual($link['plid'], $plid, format_string('%path plid @link_plid is equal to @plid.', array('%path' => $link['router_path'], '@link_plid' => $link['plid'], '@plid' => $plid)));
+
+    $link = $links['menu-test/hidden/block/manage/%/%'];
+    $this->assertEqual($link['depth'], $depth, format_string('%path depth @link_depth is equal to @depth.', array('%path' => $link['router_path'], '@link_depth' => $link['depth'], '@depth' => $depth)));
+    $this->assertEqual($link['plid'], $plid, format_string('%path plid @link_plid is equal to @plid.', array('%path' => $link['router_path'], '@link_plid' => $link['plid'], '@plid' => $plid)));
+
+    $parent = $links['menu-test/hidden/block/manage/%/%'];
+    $depth = $parent['depth'] + 1;
+    $plid = $parent['mlid'];
+
+    $link = $links['menu-test/hidden/block/manage/%/%/configure'];
+    $this->assertEqual($link['depth'], $depth, format_string('%path depth @link_depth is equal to @depth.', array('%path' => $link['router_path'], '@link_depth' => $link['depth'], '@depth' => $depth)));
+    $this->assertEqual($link['plid'], $plid, format_string('%path plid @link_plid is equal to @plid.', array('%path' => $link['router_path'], '@link_plid' => $link['plid'], '@plid' => $plid)));
+
+    $link = $links['menu-test/hidden/block/manage/%/%/delete'];
+    $this->assertEqual($link['depth'], $depth, format_string('%path depth @link_depth is equal to @depth.', array('%path' => $link['router_path'], '@link_depth' => $link['depth'], '@depth' => $depth)));
+    $this->assertEqual($link['plid'], $plid, format_string('%path plid @link_plid is equal to @plid.', array('%path' => $link['router_path'], '@link_plid' => $link['plid'], '@plid' => $plid)));
+  }
+
+  /**
+   * Test menu_get_item() with empty ancestors.
+   */
+  function testMenuGetItemNoAncestors() {
+    variable_set('menu_masks', array());
+    $this->drupalGet('');
+  }
+
+  /**
+   * Test menu_set_item().
+   */
+  function testMenuSetItem() {
+    $item = menu_get_item('node');
+
+    $this->assertEqual($item['path'], 'node', "Path from menu_get_item('node') is equal to 'node'", 'menu');
+
+    // Modify the path for the item then save it.
+    $item['path'] = 'node_test';
+    $item['href'] = 'node_test';
+
+    menu_set_item('node', $item);
+    $compare_item = menu_get_item('node');
+    $this->assertEqual($compare_item, $item, 'Modified menu item is equal to newly retrieved menu item.', 'menu');
+  }
+
+  /**
+   * Test menu maintenance hooks.
+   */
+  function testMenuItemHooks() {
+    // Create an item.
+    menu_link_maintain('menu_test', 'insert', 'menu_test_maintain/4', 'Menu link #4');
+    $this->assertEqual(menu_test_static_variable(), 'insert', 'hook_menu_link_insert() fired correctly');
+    // Update the item.
+    menu_link_maintain('menu_test', 'update', 'menu_test_maintain/4', 'Menu link updated');
+    $this->assertEqual(menu_test_static_variable(), 'update', 'hook_menu_link_update() fired correctly');
+    // Delete the item.
+    menu_link_maintain('menu_test', 'delete', 'menu_test_maintain/4', '');
+    $this->assertEqual(menu_test_static_variable(), 'delete', 'hook_menu_link_delete() fired correctly');
+  }
+
+  /**
+   * Test menu link 'options' storage and rendering.
+   */
+  function testMenuLinkOptions() {
+    // Create a menu link with options.
+    $menu_link = array(
+      'link_title' => 'Menu link options test',
+      'link_path' => 'node',
+      'module' => 'menu_test',
+      'options' => array(
+        'attributes' => array(
+          'title' => 'Test title attribute',
+        ),
+        'query' => array(
+          'testparam' => 'testvalue',
+        ),
+      ),
+    );
+    menu_link_save($menu_link);
+
+    // Load front page.
+    $this->drupalGet('node');
+    $this->assertRaw('title="Test title attribute"', 'Title attribute of a menu link renders.');
+    $this->assertRaw('testparam=testvalue', 'Query parameter added to menu link.');
+  }
+
+  /**
+   * Tests the possible ways to set the title for menu items.
+   * Also tests that menu item titles work with string overrides.
+   */
+  function testMenuItemTitlesCases() {
+
+    // Build array with string overrides.
+    $test_data = array(
+      1 => array('Example title - Case 1' => 'Alternative example title - Case 1'),
+      2 => array('Example @sub1 - Case @op2' => 'Alternative example @sub1 - Case @op2'),
+      3 => array('Example title' => 'Alternative example title'),
+      4 => array('Example title' => 'Alternative example title'),
+    );
+
+    foreach ($test_data as $case_no => $override) {
+      $this->menuItemTitlesCasesHelper($case_no);
+      variable_set('locale_custom_strings_en', array('' => $override));
+      $this->menuItemTitlesCasesHelper($case_no, TRUE);
+      variable_set('locale_custom_strings_en', array());
+    }
+  }
+
+  /**
+   * Get a URL and assert the title given a case number. If override is true,
+   * the title is asserted to begin with "Alternative".
+   */
+  private function menuItemTitlesCasesHelper($case_no, $override = FALSE) {
+    $this->drupalGet('menu-title-test/case' . $case_no);
+    $this->assertResponse(200);
+    $asserted_title = $override ? 'Alternative example title - Case ' . $case_no : 'Example title - Case ' . $case_no;
+    $this->assertTitle($asserted_title . ' | Drupal', format_string('Menu title is: %title.', array('%title' => $asserted_title)), 'Menu');
+  }
+
+  /**
+   * Load the router for a given path.
+   */
+  protected function menuLoadRouter($router_path) {
+    return db_query('SELECT * FROM {menu_router} WHERE path = :path', array(':path' => $router_path))->fetchAssoc();
+  }
+
+  /**
+   * Tests inheritance of 'load arguments'.
+   */
+  function testMenuLoadArgumentsInheritance() {
+    $expected = array(
+      'menu-test/arguments/%/%' => array(
+        2 => array('menu_test_argument_load' => array(3)),
+        3 => NULL,
+      ),
+      // Arguments are inherited to normal children.
+      'menu-test/arguments/%/%/default' => array(
+        2 => array('menu_test_argument_load' => array(3)),
+        3 => NULL,
+      ),
+      // Arguments are inherited to tab children.
+      'menu-test/arguments/%/%/task' => array(
+        2 => array('menu_test_argument_load' => array(3)),
+        3 => NULL,
+      ),
+      // Arguments are only inherited to the same loader functions.
+      'menu-test/arguments/%/%/common-loader' => array(
+        2 => array('menu_test_argument_load' => array(3)),
+        3 => 'menu_test_other_argument_load',
+      ),
+      // Arguments are not inherited to children not using the same loader
+      // function.
+      'menu-test/arguments/%/%/different-loaders-1' => array(
+        2 => NULL,
+        3 => 'menu_test_argument_load',
+      ),
+      'menu-test/arguments/%/%/different-loaders-2' => array(
+        2 => 'menu_test_other_argument_load',
+        3 => NULL,
+      ),
+      'menu-test/arguments/%/%/different-loaders-3' => array(
+        2 => NULL,
+        3 => NULL,
+      ),
+      // Explicit loader arguments should not be overriden by parent.
+      'menu-test/arguments/%/%/explicit-arguments' => array(
+        2 => array('menu_test_argument_load' => array()),
+        3 => NULL,
+      ),
+    );
+
+    foreach ($expected as $router_path => $load_functions) {
+      $router_item = $this->menuLoadRouter($router_path);
+      $this->assertIdentical(unserialize($router_item['load_functions']), $load_functions, format_string('Expected load functions for router %router_path' , array('%router_path' => $router_path)));
+    }
+  }
+}
+
+/**
+ * Tests for menu links.
+ */
+class MenuLinksUnitTestCase extends DrupalWebTestCase {
+  // Use the lightweight testing profile for this test.
+  protected $profile = 'testing';
+
+  public static function getInfo() {
+    return array(
+      'name' => 'Menu links',
+      'description' => 'Test handling of menu links hierarchies.',
+      'group' => 'Menu',
+    );
+  }
+
+  /**
+   * Create a simple hierarchy of links.
+   */
+  function createLinkHierarchy($module = 'menu_test') {
+    // First remove all the menu links.
+    db_truncate('menu_links')->execute();
+
+    // Then create a simple link hierarchy:
+    // - $parent
+    //   - $child-1
+    //      - $child-1-1
+    //      - $child-1-2
+    //   - $child-2
+    $base_options = array(
+      'link_title' => 'Menu link test',
+      'module' => $module,
+      'menu_name' => 'menu_test',
+    );
+
+    $links['parent'] = $base_options + array(
+      'link_path' => 'menu-test/parent',
+    );
+    menu_link_save($links['parent']);
+
+    $links['child-1'] = $base_options + array(
+      'link_path' => 'menu-test/parent/child-1',
+      'plid' => $links['parent']['mlid'],
+    );
+    menu_link_save($links['child-1']);
+
+    $links['child-1-1'] = $base_options + array(
+      'link_path' => 'menu-test/parent/child-1/child-1-1',
+      'plid' => $links['child-1']['mlid'],
+    );
+    menu_link_save($links['child-1-1']);
+
+    $links['child-1-2'] = $base_options + array(
+      'link_path' => 'menu-test/parent/child-1/child-1-2',
+      'plid' => $links['child-1']['mlid'],
+    );
+    menu_link_save($links['child-1-2']);
+
+    $links['child-2'] = $base_options + array(
+      'link_path' => 'menu-test/parent/child-2',
+      'plid' => $links['parent']['mlid'],
+    );
+    menu_link_save($links['child-2']);
+
+    return $links;
+  }
+
+  /**
+   * Assert that at set of links is properly parented.
+   */
+  function assertMenuLinkParents($links, $expected_hierarchy) {
+    foreach ($expected_hierarchy as $child => $parent) {
+      $mlid = $links[$child]['mlid'];
+      $plid = $parent ? $links[$parent]['mlid'] : 0;
+
+      $menu_link = menu_link_load($mlid);
+      menu_link_save($menu_link);
+      $this->assertEqual($menu_link['plid'], $plid, format_string('Menu link %mlid has parent of %plid, expected %expected_plid.', array('%mlid' => $mlid, '%plid' => $menu_link['plid'], '%expected_plid' => $plid)));
+    }
+  }
+
+  /**
+   * Test automatic reparenting of menu links.
+   */
+  function testMenuLinkReparenting($module = 'menu_test') {
+    // Check the initial hierarchy.
+    $links = $this->createLinkHierarchy($module);
+
+    $expected_hierarchy = array(
+      'parent' => FALSE,
+      'child-1' => 'parent',
+      'child-1-1' => 'child-1',
+      'child-1-2' => 'child-1',
+      'child-2' => 'parent',
+    );
+    $this->assertMenuLinkParents($links, $expected_hierarchy);
+
+    // Start over, and move child-1 under child-2, and check that all the
+    // childs of child-1 have been moved too.
+    $links = $this->createLinkHierarchy($module);
+    $links['child-1']['plid'] = $links['child-2']['mlid'];
+    menu_link_save($links['child-1']);
+
+    $expected_hierarchy = array(
+      'parent' => FALSE,
+      'child-1' => 'child-2',
+      'child-1-1' => 'child-1',
+      'child-1-2' => 'child-1',
+      'child-2' => 'parent',
+    );
+    $this->assertMenuLinkParents($links, $expected_hierarchy);
+
+    // Start over, and delete child-1, and check that the children of child-1
+    // have been reassigned to the parent. menu_link_delete() will cowardly
+    // refuse to delete a menu link defined by the system module, so skip the
+    // test in that case.
+    if ($module != 'system') {
+      $links = $this->createLinkHierarchy($module);
+      menu_link_delete($links['child-1']['mlid']);
+
+      $expected_hierarchy = array(
+        'parent' => FALSE,
+        'child-1-1' => 'parent',
+        'child-1-2' => 'parent',
+        'child-2' => 'parent',
+      );
+      $this->assertMenuLinkParents($links, $expected_hierarchy);
+    }
+
+    // Start over, forcefully delete child-1 from the database, simulating a
+    // database crash. Check that the children of child-1 have been reassigned
+    // to the parent, going up on the old path hierarchy stored in each of the
+    // links.
+    $links = $this->createLinkHierarchy($module);
+    // Don't do that at home.
+    db_delete('menu_links')
+      ->condition('mlid', $links['child-1']['mlid'])
+      ->execute();
+
+    $expected_hierarchy = array(
+      'parent' => FALSE,
+      'child-1-1' => 'parent',
+      'child-1-2' => 'parent',
+      'child-2' => 'parent',
+    );
+    $this->assertMenuLinkParents($links, $expected_hierarchy);
+
+    // Start over, forcefully delete the parent from the database, simulating a
+    // database crash. Check that the children of parent are now top-level.
+    $links = $this->createLinkHierarchy($module);
+    // Don't do that at home.
+    db_delete('menu_links')
+      ->condition('mlid', $links['parent']['mlid'])
+      ->execute();
+
+    $expected_hierarchy = array(
+      'child-1-1' => 'child-1',
+      'child-1-2' => 'child-1',
+      'child-2' => FALSE,
+    );
+    $this->assertMenuLinkParents($links, $expected_hierarchy);
+  }
+
+  /**
+   * Test automatic reparenting of menu links derived from menu routers.
+   */
+  function testMenuLinkRouterReparenting() {
+    // Run all the standard parenting tests on menu links derived from
+    // menu routers.
+    $this->testMenuLinkReparenting('system');
+
+    // Additionnaly, test reparenting based on path.
+    $links = $this->createLinkHierarchy('system');
+
+    // Move child-1-2 has a child of child-2, making the link hierarchy
+    // inconsistent with the path hierarchy.
+    $links['child-1-2']['plid'] = $links['child-2']['mlid'];
+    menu_link_save($links['child-1-2']);
+
+    // Check the new hierarchy.
+    $expected_hierarchy = array(
+      'parent' => FALSE,
+      'child-1' => 'parent',
+      'child-1-1' => 'child-1',
+      'child-2' => 'parent',
+      'child-1-2' => 'child-2',
+    );
+    $this->assertMenuLinkParents($links, $expected_hierarchy);
+
+    // Now delete 'parent' directly from the database, simulating a database
+    // crash. 'child-1' and 'child-2' should get moved to the
+    // top-level.
+    // Don't do that at home.
+    db_delete('menu_links')
+      ->condition('mlid', $links['parent']['mlid'])
+      ->execute();
+    $expected_hierarchy = array(
+      'child-1' => FALSE,
+      'child-1-1' => 'child-1',
+      'child-2' => FALSE,
+      'child-1-2' => 'child-2',
+    );
+    $this->assertMenuLinkParents($links, $expected_hierarchy);
+
+    // Now delete 'child-2' directly from the database, simulating a database
+    // crash. 'child-1-2' will get reparented under 'child-1' based on its
+    // path.
+    // Don't do that at home.
+    db_delete('menu_links')
+      ->condition('mlid', $links['child-2']['mlid'])
+      ->execute();
+    $expected_hierarchy = array(
+      'child-1' => FALSE,
+      'child-1-1' => 'child-1',
+      'child-1-2' => 'child-1',
+    );
+    $this->assertMenuLinkParents($links, $expected_hierarchy);
+  }
+}
+
+/**
+ * Tests rebuilding the menu by setting 'menu_rebuild_needed.'
+ */
+class MenuRebuildTestCase extends DrupalWebTestCase {
+  public static function getInfo() {
+    return array(
+      'name' => 'Menu rebuild test',
+      'description' => 'Test rebuilding of menu.',
+      'group' => 'Menu',
+    );
+  }
+
+  /**
+   * Test if the 'menu_rebuild_needed' variable triggers a menu_rebuild() call.
+   */
+  function testMenuRebuildByVariable() {
+    // Check if 'admin' path exists.
+    $admin_exists = db_query('SELECT path from {menu_router} WHERE path = :path', array(':path' => 'admin'))->fetchField();
+    $this->assertEqual($admin_exists, 'admin', "The path 'admin/' exists prior to deleting.");
+
+    // Delete the path item 'admin', and test that the path doesn't exist in the database.
+    $delete = db_delete('menu_router')
+      ->condition('path', 'admin')
+      ->execute();
+    $admin_exists = db_query('SELECT path from {menu_router} WHERE path = :path', array(':path' => 'admin'))->fetchField();
+    $this->assertFalse($admin_exists, "The path 'admin/' has been deleted and doesn't exist in the database.");
+
+    // Now we enable the rebuild variable and trigger menu_execute_active_handler()
+    // to rebuild the menu item. Now 'admin' should exist.
+    variable_set('menu_rebuild_needed', TRUE);
+    // menu_execute_active_handler() should trigger the rebuild.
+    $this->drupalGet('<front>');
+    $admin_exists = db_query('SELECT path from {menu_router} WHERE path = :path', array(':path' => 'admin'))->fetchField();
+    $this->assertEqual($admin_exists, 'admin', "The menu has been rebuilt, the path 'admin' now exists again.");
+  }
+
+}
+
+/**
+ * Menu tree data related tests.
+ */
+class MenuTreeDataTestCase extends DrupalUnitTestCase {
+  /**
+   * Dummy link structure acceptable for menu_tree_data().
+   */
+  var $links = array(
+    1 => array('mlid' => 1, 'depth' => 1),
+    2 => array('mlid' => 2, 'depth' => 1),
+    3 => array('mlid' => 3, 'depth' => 2),
+    4 => array('mlid' => 4, 'depth' => 3),
+    5 => array('mlid' => 5, 'depth' => 1),
+  );
+
+  public static function getInfo() {
+    return array(
+      'name' => 'Menu tree generation',
+      'description' => 'Tests recursive menu tree generation functions.',
+      'group' => 'Menu',
+    );
+  }
+
+  /**
+   * Validate the generation of a proper menu tree hierarchy.
+   */
+  function testMenuTreeData() {
+    $tree = menu_tree_data($this->links);
+
+    // Validate that parent items #1, #2, and #5 exist on the root level.
+    $this->assertSameLink($this->links[1], $tree[1]['link'], 'Parent item #1 exists.');
+    $this->assertSameLink($this->links[2], $tree[2]['link'], 'Parent item #2 exists.');
+    $this->assertSameLink($this->links[5], $tree[5]['link'], 'Parent item #5 exists.');
+
+    // Validate that child item #4 exists at the correct location in the hierarchy.
+    $this->assertSameLink($this->links[4], $tree[2]['below'][3]['below'][4]['link'], 'Child item #4 exists in the hierarchy.');
+  }
+
+  /**
+   * Check that two menu links are the same by comparing the mlid.
+   *
+   * @param $link1
+   *   A menu link item.
+   * @param $link2
+   *   A menu link item.
+   * @param $message
+   *   The message to display along with the assertion.
+   * @return
+   *   TRUE if the assertion succeeded, FALSE otherwise.
+   */
+  protected function assertSameLink($link1, $link2, $message = '') {
+    return $this->assert($link1['mlid'] == $link2['mlid'], $message ? $message : 'First link is identical to second link');
+  }
+}
+
+/**
+ * Menu tree output related tests.
+ */
+class MenuTreeOutputTestCase extends DrupalWebTestCase {
+  /**
+   * Dummy link structure acceptable for menu_tree_output().
+   */
+  var $tree_data = array(
+    '1'=> array(
+      'link' => array( 'menu_name' => 'main-menu', 'mlid' => 1, 'hidden'=>0, 'has_children' => 1, 'title' => 'Item 1', 'in_active_trail' => 1, 'access'=>1, 'href' => 'a', 'localized_options' => array('attributes' => array('title' =>'')) ),
+      'below' => array(
+        '2' => array('link' => array( 'menu_name' => 'main-menu', 'mlid' => 2, 'hidden'=>0, 'has_children' => 1, 'title' => 'Item 2', 'in_active_trail' => 1, 'access'=>1, 'href' => 'a/b', 'localized_options' => array('attributes' => array('title' =>'')) ),
+          'below' => array(
+            '3' => array('link' => array( 'menu_name' => 'main-menu', 'mlid' => 3, 'hidden'=>0, 'has_children' => 0, 'title' => 'Item 3', 'in_active_trail' => 0, 'access'=>1, 'href' => 'a/b/c', 'localized_options' => array('attributes' => array('title' =>'')) ),
+              'below' => array() ),
+            '4' => array('link' => array( 'menu_name' => 'main-menu', 'mlid' => 4, 'hidden'=>0, 'has_children' => 0, 'title' => 'Item 4', 'in_active_trail' => 0, 'access'=>1, 'href' => 'a/b/d', 'localized_options' => array('attributes' => array('title' =>'')) ),
+              'below' => array() )
+            )
+          )
+        )
+      ),
+    '5' => array('link' => array( 'menu_name' => 'main-menu', 'mlid' => 5, 'hidden'=>1, 'has_children' => 0, 'title' => 'Item 5', 'in_active_trail' => 0, 'access'=>1, 'href' => 'e', 'localized_options' => array('attributes' => array('title' =>'')) ), 'below' => array( ) ),
+    '6' => array('link' => array( 'menu_name' => 'main-menu', 'mlid' => 6, 'hidden'=>0, 'has_children' => 0, 'title' => 'Item 6', 'in_active_trail' => 0, 'access'=>0, 'href' => 'f', 'localized_options' => array('attributes' => array('title' =>'')) ), 'below' => array( ) ),
+    '7' => array('link' => array( 'menu_name' => 'main-menu', 'mlid' => 7, 'hidden'=>0, 'has_children' => 0, 'title' => 'Item 7', 'in_active_trail' => 0, 'access'=>1, 'href' => 'g', 'localized_options' => array('attributes' => array('title' =>'')) ), 'below' => array( ) )
+  );
+
+  public static function getInfo() {
+    return array(
+      'name' => 'Menu tree output',
+      'description' => 'Tests menu tree output functions.',
+      'group' => 'Menu',
+    );
+  }
+
+  function setUp() {
+    parent::setUp();
+  }
+
+  /**
+   * Validate the generation of a proper menu tree output.
+   */
+  function testMenuTreeData() {
+    $output = menu_tree_output($this->tree_data);
+
+    // Validate that the - in main-menu is changed into an underscore
+    $this->assertEqual($output['1']['#theme'], 'menu_link__main_menu', 'Hyphen is changed to an underscore on menu_link');
+    $this->assertEqual($output['#theme_wrappers'][0], 'menu_tree__main_menu', 'Hyphen is changed to an underscore on menu_tree wrapper');
+    // Looking for child items in the data
+    $this->assertEqual( $output['1']['#below']['2']['#href'], 'a/b', 'Checking the href on a child item');
+    $this->assertTrue( in_array('active-trail',$output['1']['#below']['2']['#attributes']['class']) , 'Checking the active trail class');
+    // Validate that the hidden and no access items are missing
+    $this->assertFalse( isset($output['5']), 'Hidden item should be missing');
+    $this->assertFalse( isset($output['6']), 'False access should be missing');
+    // Item 7 is after a couple hidden items. Just to make sure that 5 and 6 are skipped and 7 still included
+    $this->assertTrue( isset($output['7']), 'Item after hidden items is present');
+  }
+}
+
+/**
+ * Menu breadcrumbs related tests.
+ */
+class MenuBreadcrumbTestCase extends MenuWebTestCase {
+  public static function getInfo() {
+    return array(
+      'name' => 'Breadcrumbs',
+      'description' => 'Tests breadcrumbs functionality.',
+      'group' => 'Menu',
+    );
+  }
+
+  function setUp() {
+    $modules = func_get_args();
+    if (isset($modules[0]) && is_array($modules[0])) {
+      $modules = $modules[0];
+    }
+    $modules[] = 'menu_test';
+    parent::setUp($modules);
+    $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/item/6/edit", $trail);
+    $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'],
+      );
+      $this->assertBreadcrumb($link['link_path'], $trail, $term->name, $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);
+  }
+}
+
+/**
+ * Tests active menu trails.
+ */
+class MenuTrailTestCase extends MenuWebTestCase {
+  public static function getInfo() {
+    return array(
+      'name' => 'Active trail',
+      'description' => 'Tests active menu trails and alteration functionality.',
+      'group' => 'Menu',
+    );
+  }
+
+  function setUp() {
+    $modules = func_get_args();
+    if (isset($modules[0]) && is_array($modules[0])) {
+      $modules = $modules[0];
+    }
+    $modules[] = 'menu_test';
+    parent::setUp($modules);
+    $this->admin_user = $this->drupalCreateUser(array('administer site configuration', 'access administration pages'));
+    $this->drupalLogin($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();
+
+    // This test puts menu links in the Management menu and then tests for
+    // their presence on the page, so we need to ensure that the Management
+    // 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', 'management')
+      ->execute();
+  }
+
+  /**
+   * Tests active trails are properly affected by menu_tree_set_path().
+   */
+  function testMenuTreeSetPath() {
+    $home = array('<front>' => 'Home');
+    $config_tree = array(
+      'admin' => t('Administration'),
+      'admin/config' => t('Configuration'),
+    );
+    $config = $home + $config_tree;
+
+    // The menu_test_menu_tree_set_path system variable controls whether or not
+    // the menu_test_menu_trail_callback() callback (used by all paths in these
+    // tests) issues an overriding call to menu_trail_set_path().
+    $test_menu_path = array(
+      'menu_name' => 'management',
+      'path' => 'admin/config/system/site-information',
+    );
+
+    $breadcrumb = $home + array(
+      'menu-test' => t('Menu test root'),
+    );
+    $tree = array(
+      'menu-test' => t('Menu test root'),
+      'menu-test/menu-trail' => t('Menu trail - Case 1'),
+    );
+
+    // Test the tree generation for the Navigation menu.
+    variable_del('menu_test_menu_tree_set_path');
+    $this->assertBreadcrumb('menu-test/menu-trail', $breadcrumb, t('Menu trail - Case 1'), $tree);
+
+    // Override the active trail for the Management tree; it should not affect
+    // the Navigation tree.
+    variable_set('menu_test_menu_tree_set_path', $test_menu_path);
+    $this->assertBreadcrumb('menu-test/menu-trail', $breadcrumb, t('Menu trail - Case 1'), $tree);
+
+    $breadcrumb = $config + array(
+      'admin/config/development' => t('Development'),
+    );
+    $tree = $config_tree + array(
+      'admin/config/development' => t('Development'),
+      'admin/config/development/menu-trail' => t('Menu trail - Case 2'),
+    );
+
+    $override_breadcrumb = $config + array(
+      'admin/config/system' => t('System'),
+      'admin/config/system/site-information' => t('Site information'),
+    );
+    $override_tree = $config_tree + array(
+      'admin/config/system' => t('System'),
+      'admin/config/system/site-information' => t('Site information'),
+    );
+
+    // Test the tree generation for the Management menu.
+    variable_del('menu_test_menu_tree_set_path');
+    $this->assertBreadcrumb('admin/config/development/menu-trail', $breadcrumb, t('Menu trail - Case 2'), $tree);
+
+    // Override the active trail for the Management tree; it should affect the
+    // breadcrumbs and Management tree.
+    variable_set('menu_test_menu_tree_set_path', $test_menu_path);
+    $this->assertBreadcrumb('admin/config/development/menu-trail', $override_breadcrumb, t('Menu trail - Case 2'), $override_tree);
+  }
+
+  /**
+   * Tests that the active trail works correctly on custom 403 and 404 pages.
+   */
+  function testCustom403And404Pages() {
+    // Set the custom 403 and 404 pages we will use.
+    variable_set('site_403', 'menu-test/custom-403-page');
+    variable_set('site_404', 'menu-test/custom-404-page');
+
+    // Define the paths we'll visit to trigger 403 and 404 responses during
+    // this test, and the expected active trail for each case.
+    $paths = array(
+      403 => 'admin/config',
+      404 => $this->randomName(),
+    );
+    // For the 403 page, the initial trail during the Drupal bootstrap should
+    // include the page that the user is trying to visit, while the final trail
+    // should reflect the custom 403 page that the user was redirected to.
+    $expected_trail[403]['initial'] = array(
+      '<front>' => 'Home',
+      'admin/config' => 'Configuration',
+    );
+    $expected_trail[403]['final'] = array(
+      '<front>' => 'Home',
+      'menu-test' => 'Menu test root',
+      'menu-test/custom-403-page' => 'Custom 403 page',
+    );
+    // For the 404 page, the initial trail during the Drupal bootstrap should
+    // only contain the link back to "Home" (since the page the user is trying
+    // to visit doesn't have any menu items associated with it), while the
+    // final trail should reflect the custom 404 page that the user was
+    // redirected to.
+    $expected_trail[404]['initial'] = array(
+      '<front>' => 'Home',
+    );
+    $expected_trail[404]['final'] = array(
+      '<front>' => 'Home',
+      'menu-test' => 'Menu test root',
+      'menu-test/custom-404-page' => 'Custom 404 page',
+    );
+
+    // Visit each path as an anonymous user so that we will actually get a 403
+    // on admin/config.
+    $this->drupalLogout();
+    foreach (array(403, 404) as $status_code) {
+      // Before visiting the page, trigger the code in the menu_test module
+      // that will record the active trail (so we can check it in this test).
+      variable_set('menu_test_record_active_trail', TRUE);
+      $this->drupalGet($paths[$status_code]);
+      $this->assertResponse($status_code);
+
+      // Check that the initial trail (during the Drupal bootstrap) matches
+      // what we expect.
+      $initial_trail = variable_get('menu_test_active_trail_initial', array());
+      $this->assertEqual(count($initial_trail), count($expected_trail[$status_code]['initial']), format_string('The initial active trail for a @status_code page contains the expected number of items (expected: @expected, found: @found).', array(
+        '@status_code' => $status_code,
+        '@expected' => count($expected_trail[$status_code]['initial']),
+        '@found' => count($initial_trail),
+      )));
+      foreach (array_keys($expected_trail[$status_code]['initial']) as $index => $path) {
+        $this->assertEqual($initial_trail[$index]['href'], $path, format_string('Element number @number of the initial active trail for a @status_code page contains the correct path (expected: @expected, found: @found)', array(
+          '@number' => $index + 1,
+          '@status_code' => $status_code,
+          '@expected' => $path,
+          '@found' => $initial_trail[$index]['href'],
+        )));
+      }
+
+      // Check that the final trail (after the user has been redirected to the
+      // custom 403/404 page) matches what we expect.
+      $final_trail = variable_get('menu_test_active_trail_final', array());
+      $this->assertEqual(count($final_trail), count($expected_trail[$status_code]['final']), format_string('The final active trail for a @status_code page contains the expected number of items (expected: @expected, found: @found).', array(
+        '@status_code' => $status_code,
+        '@expected' => count($expected_trail[$status_code]['final']),
+        '@found' => count($final_trail),
+      )));
+      foreach (array_keys($expected_trail[$status_code]['final']) as $index => $path) {
+        $this->assertEqual($final_trail[$index]['href'], $path, format_string('Element number @number of the final active trail for a @status_code page contains the correct path (expected: @expected, found: @found)', array(
+          '@number' => $index + 1,
+          '@status_code' => $status_code,
+          '@expected' => $path,
+          '@found' => $final_trail[$index]['href'],
+        )));
+      }
+
+      // Check that the breadcrumb displayed on the final custom 403/404 page
+      // matches what we expect. (The last item of the active trail represents
+      // the current page, which is not supposed to appear in the breadcrumb,
+      // so we need to remove it from the array before checking.)
+      array_pop($expected_trail[$status_code]['final']);
+      $this->assertBreadcrumb(NULL, $expected_trail[$status_code]['final']);
+    }
+  }
+}