Settings Router Refactor: Implement new Route class w/ test

chrome/test/data/webui/settings/route_tests.js

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+suite('route', function() {
+  test('tree structure', function() {
+    // Set up root page routes.
+    var BASIC = new settings.Route('/');
+    BASIC.page = 'basic';
+    var ADVANCED = new settings.Route('/advanced');
+    ADVANCED.page = 'advanced';
+    assertDeepEquals([], ADVANCED.subpage);
+
+    // Test a section route.
+    var PRIVACY = ADVANCED.createChild('/privacy');
+    PRIVACY.section = 'privacy';
+    assertEquals('advanced', PRIVACY.page);
+    assertDeepEquals([], PRIVACY.subpage);
+    assertFalse(PRIVACY.isDescendantOf(BASIC));
+    assertTrue(PRIVACY.isDescendantOf(ADVANCED));
+    assertFalse(PRIVACY.isDescendantOf(PRIVACY));
+    assertFalse(ADVANCED.isDescendantOf(PRIVACY));
+
+    // Test a subpage route.
+    var SITE_SETTINGS = PRIVACY.createChild('/siteSettings', 'site-settings');
+    assertFalse(SITE_SETTINGS.dialog);
+    assertDeepEquals(['site-settings'], SITE_SETTINGS.subpage);
+    assertEquals('advanced', SITE_SETTINGS.page);
+    assertEquals('privacy', SITE_SETTINGS.section);
+    assertFalse(SITE_SETTINGS.isDescendantOf(BASIC));
+    assertTrue(SITE_SETTINGS.isDescendantOf(ADVANCED));
+    assertTrue(SITE_SETTINGS.isDescendantOf(PRIVACY));
+
+    // Test a sub-subpage route.
+    var SITE_SETTINGS_ALL =
+        SITE_SETTINGS.createChild('/siteSettings/all', 'all-sites');
+    assertDeepEquals(['site-settings', 'all-sites'], SITE_SETTINGS_ALL.subpage);
+
+    // Test a dialog route.
+    var CLEAR_BROWSING_DATA = PRIVACY.createDialog('/clearBrowsingData');
+    assertTrue(CLEAR_BROWSING_DATA.dialog);
+    assertEquals('privacy', CLEAR_BROWSING_DATA.section);
+    assertEquals('advanced', CLEAR_BROWSING_DATA.page);
+    assertEquals('privacy', CLEAR_BROWSING_DATA.section);
+    assertFalse(CLEAR_BROWSING_DATA.isDescendantOf(BASIC));
+    assertTrue(CLEAR_BROWSING_DATA.isDescendantOf(ADVANCED));
+    assertTrue(CLEAR_BROWSING_DATA.isDescendantOf(PRIVACY));
+  });
+});