Bug 1006320 - Add a marionette test for verifying the functionality BluetoothManager based on bluetooth API v2. r=btian

dom/bluetooth2/tests/marionette/manifest.ini

@@ -2,3 +2,5 @@
 b2g = true
 browser = false
 qemu = false
+
+[test_dom_BluetoothManager_API2.js]

dom/bluetooth2/tests/marionette/test_dom_BluetoothManager_API2.js

@@ -0,0 +1,48 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+///////////////////////////////////////////////////////////////////////////////
+// Test Purpose:
+//   To verify the basic functionality of BluetoothManager.
+//
+// Test Coverage:
+//   - BluetoothManager.defaultAdapter
+//   - BluetoothManager.getAdapters()
+// TODO:
+//   - BluetoothManager.onattributechanged()
+//   - BluetoothManager.onadapteradded()
+//   - BluetoothManager.onadapterremoved()
+//
+///////////////////////////////////////////////////////////////////////////////
+
+MARIONETTE_TIMEOUT = 60000;
+MARIONETTE_HEAD_JS = 'head.js';
+
+// TODO: Listens to 'onattributechanged' when B2G supports the feature that
+//       allows user to add/remove Bluetooth adapter.
+// Currently, B2G recognizes build-in Bluetooth chip as default adapter and
+// don't support adding additional Bluetooth dongles in gonk layer.
+// Therefore, the 'onattributechanged' would be triggered *only* when the
+// instance of BluetoothManager is created.
+function waitForManagerAttributeChanged() {
+  let deferred = Promise.defer();
+
+  bluetoothManager.onattributechanged = function(aEvent) {
+    if(aEvent.attrs.indexOf("defaultAdapter")) {
+      bluetoothManager.onattributechanged = null;
+      ok(true, "BluetoothManager event 'onattributechanged' got.");
+      deferred.resolve(aEvent);
+    }
+  };
+
+  return deferred.promise;
+}
+
+startBluetoothTestBase(["settings-read", "settings-write"],
+                       function testCaseMain() {
+  let adapters = bluetoothManager.getAdapters();
+  ok(Array.isArray(adapters), "Can not got the array of adapters");
+  ok(adapters.length, "The number of adapters should not be zero");
+  ok(bluetoothManager.defaultAdapter, "defaultAdapter should not be null.");
+});