MD Settings: Hide the advanced page toggle control during searching.

chrome/test/data/webui/settings/settings_main_test.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.
 
 cr.define('settings_main_page', function() {
   /**
    * @implements {SearchManager}
    */
   var TestSearchManager = function() {
     /** @private {boolean} */
@@ skipping 31 matching lines @@
       return CrSettingsPrefs.initialized;
     });
 
     suite('SearchTests', function() {
       /** @type {?TestSearchManager} */
       var searchManager = null;
 
       /** @type {?SettingsMainElement} */
       var settingsMain = null;
 
-      // TODO(tommycli): Remove once settings.navigateTo is no longer a stub.
-      settings.navigateTo = function(route) {
-        settingsMain.currentRoute = route;
-      };
-
       setup(function() {
         searchManager = new TestSearchManager();
         settings.setSearchManagerForTesting(searchManager);
         PolymerTest.clearBody();
         settingsMain = document.createElement('settings-main');
         settingsMain.prefs = settingsPrefs.prefs;
         settingsMain.toolbarSpinnerActive = false;
         document.body.appendChild(settingsMain);
       });
 
       teardown(function() { settingsMain.remove(); });
 
       test('no results page shows and hides', function() {
+        Polymer.dom.flush();
         var noSearchResults = settingsMain.$.noSearchResults;
         assertTrue(!!noSearchResults);
         assertTrue(noSearchResults.hidden);
 
+        var toggleContainer = settingsMain.$$('#toggleContainer');
+        assertTrue(!!toggleContainer);
+        assertNotEquals('none', toggleContainer.style.display);
+
         searchManager.setMatchesFound(false);
         return settingsMain.searchContents('Query1').then(function() {
           assertFalse(noSearchResults.hidden);
+          assertEquals('none', toggleContainer.style.display);
 
           searchManager.setMatchesFound(true);
           return settingsMain.searchContents('Query2');
         }).then(function() {
           assertTrue(noSearchResults.hidden);
         });
       });
 
       // Ensure that when the user clears the search box, the "no results" page
-      // is hidden.
+      // is hidden and the "advanced page toggle" is visible again.
       test('no results page hides on clear', function() {
+        Polymer.dom.flush();
         var noSearchResults = settingsMain.$.noSearchResults;
         assertTrue(!!noSearchResults);
         assertTrue(noSearchResults.hidden);
+
+        var toggleContainer = settingsMain.$$('#toggleContainer');
+        assertTrue(!!toggleContainer);
+        assertNotEquals('none', toggleContainer.style.display);
+
         searchManager.setMatchesFound(false);
-
         // Clearing the search box is effectively a search for the empty string.
         return settingsMain.searchContents('').then(function() {
+          Polymer.dom.flush();
           assertTrue(noSearchResults.hidden);
+          assertNotEquals('none', toggleContainer.style.display);
+        });
+      });
+
+      test('advanced page restored after search results cleared', function() {
+        // Simulating searching while the advanced page is collapsed.
+        settingsMain.currentRouteChanged(settings.Route.BASIC);
+        Polymer.dom.flush();
+
+        assertFalse(!!settingsMain.$$('settings-advanced-page'));
+
+        searchManager.setMatchesFound(true);
+        return settingsMain.searchContents('Query1').then(function() {
+          searchManager.setMatchesFound(false);
+          return settingsMain.searchContents('');
+        }).then(function() {
+          Polymer.dom.flush();
+          // Checking that it remains hidden after results are cleared.
+          assertEquals(
+              'none', settingsMain.$$('settings-advanced-page').style.display);
         });
       });
     });
   }
 
   return {
     registerTests: registerTests,
   };
 });