more jasmine specs for proxypair, ui, and snowflake coffee files

proxy/spec/snowflake.spec.coffee

@@ -0,0 +1,60 @@
+###
+jasmine tests for Snowflake
+###
+
+query = {}
+# Fake browser functionality:
+class PeerConnection
+class RTCSessionDescription
+  type: 'offer'
+class WebSocket
+  OPEN: 1
+  CLOSED: 0
+log = ->
+class FakeUI
+  log: ->
+  setActive: ->
+  setStatus: ->
+fakeUI = new FakeUI()
+class FakeBroker
+  getClientOffer: -> new Promise((F,R) -> {})
+# Fake snowflake to interact with
+snowflake =
+  ui: fakeUI
+  broker:
+    sendAnswer: ->
+
+describe 'Snowflake', ->
+
+  it 'constructs correctly', ->
+    s = new Snowflake({ fake: 'broker' }, fakeUI)
+    query['ratelimit'] = 'off'
+    expect(s.rateLimit).not.toBeNull()
+    expect(s.broker).toEqual { fake: 'broker' }
+    expect(s.ui).not.toBeNull()
+    expect(s.retries).toBe 0
+
+  it 'sets relay address correctly', ->
+    s = new Snowflake(null, fakeUI)
+    s.setRelayAddr 'foo'
+    expect(s.relayAddr).toEqual 'foo'
+
+  it 'initalizes WebRTC connection', ->
+    s = new Snowflake(new FakeBroker(), fakeUI)
+    spyOn(s.broker, 'getClientOffer').and.callThrough()
+    s.beginWebRTC()
+    expect(s.retries).toBe 1
+    expect(s.broker.getClientOffer).toHaveBeenCalled()
+
+  it 'receives SDP offer', ->
+    s = new Snowflake(new FakeBroker(), fakeUI)
+    s.proxyPair = { receiveWebRTCOffer: -> }
+    spyOn(s.proxyPair, 'receiveWebRTCOffer').and.returnValue true
+    spyOn(s, 'sendAnswer')
+    s.receiveOffer 'foo'
+    expect(s.sendAnswer).toHaveBeenCalled()
+
+  it 'can make a proxypair', ->
+    s = new Snowflake(new FakeBroker(), fakeUI)
+    s.makeProxyPair()
+    expect(s.proxyPairs.length).toBe 2