sinonの練習

sinon_test_pattern.coffee

sinon = require 'sinon'

# class stubbing
class MockClass
  method: ->
  method2: ->
sinon.stub(MockClass.prototype, 'method').withArgs(1).returns 42

obj = new MockClass
console.log obj.method(1) #=> 42
console.log obj.method(0) #=> undefined

# sinon.match
sinon.stub(MockClass.prototype, 'method2').withArgs(sinon.match.number).returns 42* 42
console.log obj.method2(424239748923) #=> 1764

# calledWithNew
class MockClass2
  constructor: ->
    @onNew()
  onNew: ->

sinon.stub(MockClass2.prototype, 'onNew')
m2 = new MockClass2
console.log MockClass2.prototype.onNew.called #=> true
MockClass2.prototype.onNew.restore()
console.log MockClass2.prototype.onNew.called #=> undefined


#sinon.mock

class MockClass3
  a: (str) -> @b(str); @b(str)
  b: (str) -> str

mock = sinon.mock(MockClass3.prototype)
mock.expects('b').twice().withArgs('hoge')

m3 = new MockClass3
m3.a("hoge")
mock.verify() #=> pass test
mock.restore()