Add Settings bluetooth page test

chrome/test/data/webui/settings/fake_bluetooth.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 Fake implementation of chrome.bluetooth for testing.
+ */
+cr.define('settings', function() {
+  /**
+   * Fake of the chrome.bluetooth API.
+   * @constructor
+   * @implements {Bluetooth}
+   */
+  function FakeBluetooth() {
+    /** @type {boolean} */ this.enabled = false;
+
+    /** @type {!Array<!chrome.bluetooth.Device>} */ this.devices = [];
+  }
+
+  FakeBluetooth.prototype = {
+    // Public testing methods.
+    /**
+     * @param {!Array<!chrome.bluetooth.Device>} devices
+     */
+    setDevicesForTest: function(devices) {
+      for (var d of this.devices)
+        this.onDeviceRemoved.callListeners(d);
+      this.devices = devices;
+      for (var d of this.devices)
+        this.onDeviceAdded.callListeners(d);
+    },
+
+    // Bluetooth overrides.
+    /** @override */
+    getAdapterState: function(callback) {
+      setTimeout(function() {
+        callback({
+          address: '00:11:22:33:44:55:66',
+          name: 'Fake Adapter',
+          powered: this.enabled,
+          available: true,
+          discovering: false
+        });
+      }.bind(this));
+    },
+
+    /** @override */
+    getDevice: assertNotReached,
+
+    /** @override */
+    getDevices: function(callback) {
+      setTimeout(function() {
+        callback(this.devices);
+      }.bind(this));
+    },
+
+    /** @override */
+    startDiscovery: assertNotReached,
+
+    /** @override */
+    stopDiscovery: assertNotReached,
+
+    /** @override */
+    onAdapterStateChanged: new FakeChromeEvent(),
+
+    /** @override */
+    onDeviceAdded: new FakeChromeEvent(),
+
+    /** @override */
+    onDeviceChanged: new FakeChromeEvent(),
+
+    /** @override */
+    onDeviceRemoved: new FakeChromeEvent(),
+  };
+
+  return {FakeBluetooth: FakeBluetooth};
+});