Sinon.js 2
Sinon.js 2
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Fake XHR and server

Fake XHR and server

Fake XMLHttpRequest

Provides a fake implementation of XMLHttpRequest and provides several interfaces for manipulating objects created by it.

Also fakes native XMLHttpRequest and ActiveXObject (when available, and only for XMLHTTP progids). Helps with testing requests made with XHR.

The fake server and XHR can be used completely stand-alone by downloading sinon-server.js.

{
    setUp: function () {
        this.xhr = sinon.useFakeXMLHttpRequest();
        var requests = this.requests = [];

        this.xhr.onCreate = function (xhr) {
            requests.push(xhr);
        };
    },

    tearDown: function () {
        this.xhr.restore();
    },

    "test should fetch comments from server" : function () {
        var callback = sinon.spy();
        myLib.getCo