Issue with jQuery deferred and Backbone's success method on save

http://stackoverflow.com/questions/11891326/issue-with-jquery-deferred-and-backbones-success-method-on-save#11891326

by shioyama

HTML

<script src="http://documentcloud.github.com/underscore/underscore-min.js"></script>
<script src="http://documentcloud.github.com/backbone/backbone-min.js"></script>
<script src="http://sinonjs.org/releases/sinon-1.4.2.js"></script>
<script src="https://raw.github.com/pivotal/jasmine/master/lib/jasmine-core/jasmine.js"></script>
<script src="https://raw.github.com/pivotal/jasmine/master/lib/jasmine-core/jasmine-html.js"></script>

CSS

body { background-color: #eeeeee; padding: 0; margin: 5px; overflow-y: scroll; }

#TrivialReporter { padding: 8px 13px; position: absolute; top: 0; bottom: 0; left: 0; right: 0; overflow-y: scroll; background-color: white; font-family: "Helvetica Neue Light", "Lucida Grande", "Calibri", "Arial", sans-serif; /*.resultMessage {*/ /*white-space: pre;*/ /*}*/ }
#TrivialReporter a:visited, #TrivialReporter a { color: #303; }
#TrivialReporter a:hover, #TrivialReporter a:active { color: blue; }
#TrivialReporter .run_spec { float: right; padding-right: 5px; font-size: .8em; text-decoration: none; }
#TrivialReporter .banner { color: #303; background-color: #fef; padding: 5px; }
#TrivialReporter .logo { float: left; font-size: 1.1em; padding-left: 5px; }
#TrivialReporter .logo .version { font-size: .6em; padding-left: 1em; }
#TrivialReporter .runner.running { background-color: yellow; }
#TrivialReporter .options { text-align: right; font-size: .8em; }
#TrivialReporter .suite { border: 1px outset gray; margin: 5px 0; padding-left: 1em; }
#TrivialReporter .suite .suite { margin: 5px; }
#TrivialReporter .suite.passed { background-color: #dfd; }
#TrivialReporter .suite.failed { background-color: #fdd; }
#TrivialReporter .spec { margin: 5px; padding-left: 1em; clear: both; }
#TrivialReporter .spec.failed, #TrivialReporter .spec.passed, #TrivialReporter .spec.skipped { padding-bottom: 5px; border: 1px solid gray; }
#TrivialReporter .spec.failed { background-color: #fbb; border-color: red; }
#TrivialReporter .spec.passed { background-color: #bfb; border-color: green; }
#TrivialReporter .spec.skipped { background-color: #bbb; }
#TrivialReporter .messages { border-left: 1px dashed gray; padding-left: 1em; padding-right: 1em; }
#TrivialReporter .passed { background-color: #cfc; display: none; }
#TrivialReporter .failed { background-color: #fbb; }
#TrivialReporter .skipped { color: #777; background-color: #eee; display: none; }
#TrivialReporter .resultMessage span.result { display:...

JavaScript

var update_model = function(model, resp) {
    model.set('id', resp.id);
    m = model;
};

var print_id = function() {
    console.log(m.get('id'));
};

var MyModel = Backbone.Model.extend({
    url: 'abc'
});


describe('jQuery deferred and backbone.js success on save', function() {

    beforeEach(function() {
        this.s = sinon.fakeServer.create()
    });


    it('prints id after successful save', function() {
        this.s.respondWith('GET', 'abc', '');

        var m = new MyModel({
            title: 'test'
        });
        var model_promise = m.save({
            author: 'me'
        }, {
            success: update_model
        });
        this.s.respond();
        $.when(model_promise).then(print_id);

    });

});
    

// KICK OFF JASMINE
var jasmineEnv = jasmine.getEnv();
var trivialReporter = new jasmine.TrivialReporter();

jasmineEnv.addReporter(trivialReporter);

jasmineEnv.specFilter = function(spec) {
    return trivialReporter.specFilter(spec);
};

jasmineEnv.execute();