Sinon.js: Correct way to stub and analyze the return

Question

Sinon.js: Correct way to stub and analyze the return

I am writing a node app using coffeescript and doing some TDD using mocha.js. Please can someone point me correct way to write the test.

What I want to do: Fake response of 'ra.do_get'and then call method 'all_tests' to analyze return value

var RequestAdapter = require('./request_adapter');

class QueryHandler
  constructor: (@adapter) ->
    @klass  = "QueryHandler"
    @url    = "http://localhost:#{port[@adapter]}/"
    logger.debug "[#{@klass}] creating .."
    //RequestAdapter is another class doing some GET/POST etc (using request NPM)
    @ra   = new RequestAdapter(@url)

  all_tests: (cb) ->
    logger.info "#{@adapter}: requesting all test - #{adapter_apis.ALL_TESTS_SESSION}"
    _url = @url + adapter_apis.ALL_TESTS_SESSION

    @ra.do_get _url, (error , response) ->
      if error
        return cb({error: true, message: "#{@adapter} adapter errored out"})
      else
        return cb(null,response)
    return

Thanks

node.js
coffeescript
mocking
mocha
sinon

Answer 1

Finally it worked. Originally obj I was trying to spy on was wrong

describe('#all_tests()', function(){
 it('should return all tests', function(done){

   var qh_obj = new qh("FAKE_ADAPTER");
   var spy    = sinon.spy(qh_obj.ra,'do_get');

   qh_obj.all_tests(function(e,r) {});
   (spy.callCount).should.equal(1);

   done();

 });
}); // describe