Stub out the tests for the CrossFrameBridge component

tests/js/cross-frame-bridge-test.coffee

+assert = chai.assert
+sinon.assert.expose assert, prefix: null
+
+describe 'CrossFrameBridge', ->
+  sandbox = sinon.sandbox.create()
+  createBridge = null
+  createChannel = null
+
+  beforeEach module('h')
+  beforeEach module (CrossFrameBridge) ->
+    createBridge = (options) ->
+      new CrossFrameBridge(options)
+
+    createChannel ->
+      call: sandbox.stub()
+      bind: sandbox.stub()
+      unbind: sandbox.stub()
+      notify: sandbox.stub()
+
+  afterEach ->
+    sandbox.restore()
+
+  describe '.createChannel', ->
+    it 'creates a new channel with the provided options'
+    it 'adds the channel to the .links property'
+    it 'registers any channelListeners on the channel'
+    it 'returns the newly created channel'
+
+  describe '.call', ->
+    it 'forwards the call to every created channel'
+    it 'provides a timeout of 1000ms'
+    it 'calls options.callback when all channels return successfully'
+    it 'calls options.callback with an error when one or more channels fail'
+    it 'destroys the channel when a call fails'
+    it 'removes the channel from the .links array when a call fails'
+    it 'treats a timeout as a success with no result'
+    it 'returns a promise object'
+
+  describe '.notify', ->
+    it 'publishes the message on every created channel'
+
+  describe '.on', ->
+    it 'registers an event listener on all created channels'
+    it 'adds the message to the .channelListeners property'
+    it 'only allows one message to be registered per method'
+
+  describe '.off', ->
+    it 'removes the event listener from the created channels'
+    it 'removes the method from th .channelListeners property'
+
+  describe '.onConnect', ->
+    it 'adds a callback that is called when a new channel is connected'
+    it 'allows multiple callbacks to be registered'