Add Settings bluetooth page test

chrome/test/data/webui/settings/bluetooth_page_browsertest.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']);
+
+/**
+ * @constructor
+ * @extends {SettingsPageBrowserTest}
+*/
+function SettingsBluetoothPageBrowserTest() {}
+
+SettingsBluetoothPageBrowserTest.prototype = {
+  __proto__: SettingsPageBrowserTest.prototype,
+};
+
+// Runs bluetooth tests.
+TEST_F('SettingsBluetoothPageBrowserTest', 'Bluetooth', function() {
+  // Assign |self| to |this| instead of binding since 'this' in suite()
+  // and test() will be a Mocha 'Suite' or 'Test' instance.
+  var self = this;
+
+  var enabled = false;
+
+  chrome.bluetooth.getAdapterState = function(callback) {
+    setTimeout(callback({
+      address: '00:11:22:33:44:55:66',
+      name: 'Fake Adapter',
+      powered: enabled,
+      available: true,
+      discovering: false
+    }));
+  };
+
+  chrome.bluetoothPrivate.setAdapterState = function(state, callback) {
+    enabled = state.powered;
+    setTimeout(callback());

[michaelpg, 2015/11/24 15:55:49]

Did you mean this without the parens, so "callback" itself is deferred?

FWIW I'm surprised setTimeout(undefined) doesn't error. I suppose it's using
setTimeout(code) instead of setTimeout(function) and just creates an empty
script...

[stevenjb, 2015/11/24 17:04:50]

Doh. Yes. I think the other one is wrong too. Isn't JS fun? :)
Fixed.

+  };
+
+  suite('SettingsBluetoothPage', function() {
+    test('enable', function() {
+      var bluetoothSection =
+          self.getSection(self.getPage('advanced'), 'bluetooth');
+      assertTrue(!!bluetoothSection);
+      var bluetooth =
+          bluetoothSection.querySelector('settings-bluetooth-page');
+      assertTrue(!!bluetooth);
+      var enable = bluetooth.$.enableBluetooth;
+      assertTrue(!!enable);
+      assertFalse(enabled);
+      expectFalse(enable.checked);
+      MockInteractions.tap(enable);
+      expectTrue(enable.checked);
+      expectTrue(enabled);
+    });
+  });
+
+  // Run all registered tests.
+  mocha.run();
+});