BDD#3 stub fail

bdd#3-stubfail.swift

context("Send SMS") {
  // Specify API to Stub
  let apiSendSMSStub = OHHTTPStubsTestBlock = { request -> Bool in
    return request.URL!.path == "/api/sendsms" 
  }
  
  it("should success") {
    ...
  }
  
  it("should failed") {
    let failBlock: OHHTTPStubsResponseBlock = { request -> OHHTTPStubsResponse in
      return OHHTTPStubsResponse(fileAtPath: OHPathForFile("sendsms-err400.json", self.dynamicType)!, statusCode: 400, headers: nil)
    }
    
    let failStub = OHHTTPStubs.stubRequestsPassingTest(apiSendSMSStub, withStubResponse: failBlock)
    
    var sendResult: APIResult?
    SMSAPI.sendSMS("08011122229991123", text: "Hello, fail world", callback : { result in 
      result = sendResult
    }
    expect(sendResult).toNotEventually(beNil())
    expect(sendResult?.isSuccess()).toEventually(beFalse())
    
    OHHTTPStubs.removeStub(failStub)
  }
}