MD Settings: polish top-level bluetooth page

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

 // Copyright 2015 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.
 
 /** @fileoverview Suite of tests for settings-bluetooth-page. */
 
 GEN_INCLUDE(['settings_page_browsertest.js']);
 
 var bluetoothPage = bluetoothPage || {};
 
@@ skipping 112 matching lines @@
     test('device list', function() {
       var bluetoothSection = self.getSection(advanced, 'bluetooth');
       var bluetooth =
           bluetoothSection.querySelector('settings-bluetooth-page');
       assertTrue(!!bluetooth);
       var deviceList = bluetooth.$.deviceList;
       assertTrue(!!deviceList);
       // Set enabled, with default (empty) device list.
       self.bluetoothApi_.setEnabled(true);
       Polymer.dom.flush();
-      // Ensure that initially the 'device list empty' span is visible.
+      // Ensure that initially the 'no devices' element is visible.
       expectFalse(deviceList.hidden);
-      var noDevices = deviceList.querySelector('span');
+      var noDevices = deviceList.querySelector('.no-devices');
       assertTrue(!!noDevices);
       expectFalse(noDevices.hidden);
-      // Set some devices (triggers onDeviceAdded events). 'empty' span should
-      // be hidden.
+      // Set some devices (triggers onDeviceAdded events). 'no devices' element
+      // should be hidden.
       self.bluetoothApi_.setDevicesForTest(fakeDevices_);
       Polymer.dom.flush();
       expectTrue(noDevices.hidden);
       // Confirm that there are two paired devices in the list.
       var devices = deviceList.querySelectorAll('bluetooth-device-list-item');
       assertEquals(2, devices.length);
       // Check the state of each device.
       assertTrue(devices[0].device.connected);
       assertFalse(devices[1].device.connected);
       assertTrue(devices[1].device.connecting);
     });
 
     test('device dialog', function() {
       var bluetoothSection = self.getSection(advanced, 'bluetooth');
       var bluetooth =
           bluetoothSection.querySelector('settings-bluetooth-page');
       assertTrue(!!bluetooth);
       self.bluetoothApi_.setEnabled(true);
 
       // Tap the 'add device' button.
-      MockInteractions.tap(bluetooth.$.addDevice);
+      MockInteractions.tap(bluetooth.$$('.primary-button'));
       Polymer.dom.flush();
       // Ensure the dialog appears.
       var dialog = bluetooth.$.deviceDialog;
       assertTrue(!!dialog);
       assertTrue(dialog.opened);
       var addDialog = bluetooth.$$('settings-bluetooth-add-device-dialog');
       assertTrue(!!addDialog);
       // Ensure the dialog has the expected devices.
       var devicesDiv = addDialog.$.dialogDeviceList;
       var devices = devicesDiv.querySelectorAll('bluetooth-device-list-item');
@@ skipping 17 matching lines @@
       var response = self.bluetoothPrivateApi_.pairingResponses_[deviceAddress];
       assertTrue(!!response);
       expectEquals(chrome.bluetoothPrivate.PairingResponse.CANCEL,
                    response.response);
     });
   });
 
   // Run all registered tests.
   mocha.run();
 });