better ProxyPair jasmine specs, ensure travis using more recent npm

proxy/Cakefile

@@ -1,5 +1,5 @@
 fs = require 'fs'
-{spawn, exec} = require 'child_process'
+{exec, spawn, execSync} = require 'child_process'
 
 # All coffeescript files required.
 FILES = [
@@ -12,7 +12,8 @@ FILES = [
   'snowflake.coffee'
 ]
 FILES_SPEC = [
-  'spec.coffee'
+  'spec/util.spec.coffee'
+  'spec/proxypair.spec.coffee'
 ]
 FILES_ALL = FILES.concat FILES_SPEC
 OUTFILE = 'build/snowflake.coffee'
@@ -20,19 +21,21 @@ STATIC = 'static'
 
 concatCoffeeFiles = -> exec 'cat ' + FILES.join(' ') + ' | cat > ' + OUTFILE
 
-copyStaticFiles = -> exec 'cp ' + STATIC + '/* build/'
+copyStaticFiles = -> exec '' + STATIC + '/* build/'
 
 compileCoffee = ->
   exec 'coffee -o build -b -c build/snowflake.coffee', (err, stdout, stderr) ->
     throw err if err
 
 task 'test', 'snowflake unit tests', ->
+  exec 'mkdir -p build'
   exec 'jasmine init >&-'
+  # Simply concat all the files because we're not using node exports.
   jasmineFiles = FILES.concat FILES_SPEC
-  outFile = 'spec/snowflake.bundle.coffee'
+  outFile = 'build/bundle.spec.coffee'
   exec 'cat ' + jasmineFiles.join(' ') +  ' | cat > ' + outFile
-  exec 'coffee -o spec -cb ' + outFile
-  spawn 'jasmine', ['spec/snowflake.bundle.js'], {
+  execSync 'coffee -cb ' + outFile
+  spawn 'jasmine', ['build/bundle.spec.js'], {
     stdio: 'inherit'
   }
 
@@ -51,5 +54,3 @@ task 'lint', 'ensure idiomatic coffeescript', ->
 
 task 'clean', 'remove all built files', ->
   exec 'rm -r build'
-  exec 'rm -r spec'
-  exec 'rm -r test/snowflake.bundle.coffee'

proxy/spec/proxypair.spec.coffee

@@ -0,0 +1,95 @@
+###
+jasmine tests for Snowflake
+###
+
+# Stubs to fake browser functionality.
+class PeerConnection
+class WebSocket
+  OPEN: 1
+  CLOSED: 0
+ui =
+  log: ->
+  setActive: ->
+log = ->
+
+describe 'ProxyPair', ->
+  fakeRelay = Parse.address '0.0.0.0:12345'
+  rateLimit = new DummyRateLimit()
+  destination = []
+  fakeClient = send: (d) -> destination.push d
+  # Fake snowflake to interact with
+  snowflake = {
+    broker:
+      sendAnswer: ->
+  }
+  pp = new ProxyPair(fakeClient, fakeRelay, rateLimit)
+
+  it 'begins webrtc connection', ->
+    pp.begin()
+    expect(pp.pc).not.toBeNull()
+
+  it 'accepts WebRTC offer from some client', ->
+    it 'rejects invalid offers', ->
+      expect(pp.receiveWebRTCOffer {}).toBe false
+      expect pp.receiveWebRTCOffer {
+        type: 'answer'
+      }.toBeFalse()
+    it 'accepts valid offers', ->
+      goodOffer = {
+        type: 'offer'
+        sdp: 'foo'
+      }
+      expect(pp.receiveWebRTCOffer goodOffer).toBe true
+
+  it 'responds with a WebRTC answer correctly', ->
+    spyOn snowflake.broker, 'sendAnswer'
+    pp.pc.onicecandidate {
+      candidate: null
+    }
+    expect(snowflake.broker.sendAnswer).toHaveBeenCalled()
+
+  it 'handles a new data channel correctly', ->
+    expect(pp.client).toBeNull()
+    pp.pc.ondatachannel {
+      channel: {}
+    }
+    expect(pp.client).not.toBeNull()
+    expect(pp.client.onopen).not.toBeNull()
+    expect(pp.client.onclose).not.toBeNull()
+    expect(pp.client.onerror).not.toBeNull()
+    expect(pp.client.onmessage).not.toBeNull()
+
+  it 'connects to the relay once datachannel opens', ->
+    spyOn pp, 'connectRelay'
+    pp.client.onopen()
+    expect(pp.connectRelay).toHaveBeenCalled()
+
+  it 'connects to a relay', ->
+    pp.connectRelay()
+    expect(pp.relay.onopen).not.toBeNull()
+    expect(pp.relay.onclose).not.toBeNull()
+    expect(pp.relay.onerror).not.toBeNull()
+    expect(pp.relay.onmessage).not.toBeNull()
+
+  it 'flushes data between client and relay', ->
+
+    it 'proxies data from client to relay', ->
+      spyOn pp.relay, 'send'
+      pp.c2rSchedule.push { data: 'foo' }
+      pp.flush()
+      expect(pp.client.send).not.toHaveBeenCalled()
+      expect(pp.relay.send).toHaveBeenCalledWith 'foo'
+
+    it 'proxies data from relay to client', ->
+      spyOn pp.client, 'send'
+      pp.r2cSchedule.push { data: 'bar' }
+      pp.flush()
+      expect(pp.client.send).toHaveBeenCalledWith 'bar'
+      expect(pp.relay.send).not.toHaveBeenCalled()
+
+    it 'sends nothing with nothing to flush', ->
+      pp.flush()
+      expect(pp.client.send).not.toHaveBeenCalled()
+      expect(pp.relay.send).not.toHaveBeenCalled()
+
+# TODO: rate limit tests

proxy/spec/util.spec.coffee

@@ -3,10 +3,14 @@ jasmine tests for Snowflake
 ###
 
 # Stubs to fake browser functionality.
+class PeerConnection
 class WebSocket
   OPEN: 1
   CLOSED: 0
-ui = {}
+ui =
+  log: ->
+  setActive: ->
+log = ->
 
 describe 'BuildUrl', ->
   it 'should parse just protocol and host', ->
@@ -139,14 +143,14 @@ describe 'Params', ->
     getBool = (query) ->
       Params.getBool (Query.parse query), 'param', false
     it 'parses correctly', ->
-      expect(getBool 'param=true').toEqual true
-      expect(getBool 'param').toEqual true
-      expect(getBool 'param=').toEqual true
-      expect(getBool 'param=1').toEqual true
-      expect(getBool 'param=0').toEqual false
-      expect(getBool 'param=false').toEqual false
+      expect(getBool 'param=true').toBe true
+      expect(getBool 'param').toBe true
+      expect(getBool 'param=').toBe true
+      expect(getBool 'param=1').toBe true
+      expect(getBool 'param=0').toBe false
+      expect(getBool 'param=false').toBe false
       expect(getBool 'param=unexpected').toBeNull()
-      expect(getBool 'pram=true').toEqual false
+      expect(getBool 'pram=true').toBe false
 
   describe 'address', ->
     DEFAULT = { host: '1.1.1.1', port: 2222 }
@@ -166,15 +170,79 @@ describe 'ProxyPair', ->
   rateLimit = new DummyRateLimit()
   destination = []
   fakeClient = send: (d) -> destination.push d
+  # Fake snowflake to interact with
+  snowflake = {
+    broker:
+      sendAnswer: ->
+  }
   pp = new ProxyPair(fakeClient, fakeRelay, rateLimit)
-  it 'handles relay correctly', ->
+
+  it 'begins webrtc connection', ->
+    pp.begin()
+    expect(pp.pc).not.toBeNull()
+
+  it 'accepts WebRTC offer from some client', ->
+    it 'rejects invalid offers', ->
+      expect(pp.receiveWebRTCOffer {}).toBe false
+      expect pp.receiveWebRTCOffer {
+        type: 'answer'
+      }.toBeFalse()
+    it 'accepts valid offers', ->
+      goodOffer = {
+        type: 'offer'
+        sdp: 'foo'
+      }
+      expect(pp.receiveWebRTCOffer goodOffer).toBe true
+
+  it 'responds with a WebRTC answer correctly', ->
+    spyOn snowflake.broker, 'sendAnswer'
+    pp.pc.onicecandidate {
+      candidate: null
+    }
+    expect(snowflake.broker.sendAnswer).toHaveBeenCalled()
+
+  it 'handles a new data channel correctly', ->
+    expect(pp.client).toBeNull()
+    pp.pc.ondatachannel {
+      channel: {}
+    }
+    expect(pp.client).not.toBeNull()
+    expect(pp.client.onopen).not.toBeNull()
+    expect(pp.client.onclose).not.toBeNull()
+    expect(pp.client.onerror).not.toBeNull()
+    expect(pp.client.onmessage).not.toBeNull()
+
+  it 'connects to the relay once datachannel opens', ->
+    spyOn pp, 'connectRelay'
+    pp.client.onopen()
+    expect(pp.connectRelay).toHaveBeenCalled()
+
+  it 'connects to a relay', ->
     pp.connectRelay()
     expect(pp.relay.onopen).not.toBeNull()
     expect(pp.relay.onclose).not.toBeNull()
     expect(pp.relay.onerror).not.toBeNull()
     expect(pp.relay.onmessage).not.toBeNull()
-  # TODO: Test for flush
-  # pp.c2rSchedule.push { data: 'omg' }
-  # pp.flush()
-  # if destination == ['omg'] then pass 'flush'
-  # else fail 'flush', ['omg'], destination
+
+  it 'flushes data between client and relay', ->
+
+    it 'proxies data from client to relay', ->
+      spyOn pp.relay, 'send'
+      pp.c2rSchedule.push { data: 'foo' }
+      pp.flush()
+      expect(pp.client.send).not.toHaveBeenCalled()
+      expect(pp.relay.send).toHaveBeenCalledWith 'foo'
+
+    it 'proxies data from relay to client', ->
+      spyOn pp.client, 'send'
+      pp.r2cSchedule.push { data: 'bar' }
+      pp.flush()
+      expect(pp.client.send).toHaveBeenCalledWith 'bar'
+      expect(pp.relay.send).not.toHaveBeenCalled()
+
+    it 'sends nothing with nothing to flush', ->
+      pp.flush()
+      expect(pp.client.send).not.toHaveBeenCalled()
+      expect(pp.relay.send).not.toHaveBeenCalled()
+
+  # TODO: rate limit tests

proxy/websocket.coffee

@@ -56,5 +56,3 @@ makeWebsocket = (addr) ->
   ###
   ws.binaryType = 'arraybuffer'
   ws
-
-# module.exports.buildUrl = buildUrl