Jasmine Spy Misuse

backbone-view-spec.js

describe('Backbone View Example', function () {
  beforeEach(function () {
    this.collection = jasmine.createSpyObj(MyModels, ['bind']);
    this.view = new MyView({collection: this.collection});
  });
  
  it('should render itself when the collection changes', function () {
    expect(this.collection.bind)
      .toHaveBeenCalledWith(['change', this.view.render]);
  });
  
  it('should render itself when the collection changes v2', function () {
    var args = this.collection.bind.mostRecentCall.args;
    expect(args[0]).toEqual('change');
    expect(args[1]).toEqual(this.view.render);
  });
});

backbone-view.js

(function($) {
  MyModel = Backbone.Model.extend({});
  
  MyModels = Backbone.Collection.extend({
    model: MyModel
  });
  
  MyView = Backbone.View.extend({
    initialize: function () {
      _.bindAll(this, 'render');
      this.collection.bind('change', this.render);
    },
    render: function () {
      
    }
  });
})(jQuery);