I am trying to test a button click using backbone.js, jasmine.js and sinon.js. But the following test case fails. I am using a spy to track whether it is getting called or not. Can you please help me with this?  Thanks.  New Task Template  <script...

In my code, I trigger a callback upon "OK" click of a window.confirm prompt, and I want to test that the callback is triggered.  In sinon, I can stub the window.confirm function via:  const confirmStub = sinon.stub(window, 'confirm');...

I am trying to test a service function I use to save a widget using a Mongoose model. I want to stub out the save instance method on my model, but I cannot figure out a good solution. I have seen other suggestions, but none seem to be complete.  See....

I'm testing a backbone view with Jasmin, Simon and jasmin-simon.  Here is the code:  var MessageContainerView = Backbone.View.extend({     id: 'messages',     initialize: function() {         this.collection.bind('add', this.addMe...

What is the difference between    stub.yield([arg1, arg2, ...]) spy.yields([arg1, arg2, ...]) stub.callsArg(index)   in the Sinon.js stub library?  stub.yield() is the only one that I've been able to grasp:    stub = sinon.stub(API, 'call_rem...

let's say i have a function  Func a() {     //Do Something     let c = b();     return c; }   I want to test the function a and mock b() and in the mock want to assign c. Sinon.Stub(Test,"b").returns("DummyValue"); c should be ass...

I'm writing some tests for an async node.js function which returns a promise using the Mocha, Chai and Sinon libraries. Let's say this is my function:    function foo(params) {   return (     mkdir(params)     .then(dir => writeFile(dir))...

I would like to mock server login responses when testing Ember Simple Auth in my Ember App Kit application. However, with the following code I get an opaque error 'Unexpected end of input' when the click action is called on the visit function...

I would like to write a test that check if my function calls other functions using the await keyword.  I'd like my test to fail:  async methodA() {    this.methodB();    return true;  },   I'd like my test to succeed:  async methodA() {    aw...

So, I'm using mocha with chai to do my front-end testing, but I'm starting to incorporate sinon and really liking it. Except that testing throwing errors isn't working quite how the sinon docs seem to indicate.  Basically, I've got th...