– Leonardo Garcia Crespo Aug 29 '12 at 19:51 Write unit tests. Along with the usual HTML boilerplate, we have three included files: two files for QUnit (qunit.css and qunit.js) and the previous prettydate.js.Then, there’s another script block with the actual tests. QUnit is especially useful for regression testing: Whenever a bug is reported, write a test that asserts the existence of that particular bug. Run this example. Before adding unit tests to your project, make sure the framework you plan to use is installed locally in your project. QUnit is a powerful, easy-to-use, JavaScript unit testing framework. QUnit is a powerful, easy-to-use JavaScript unit testing framework. The preferred way to add unit tests to your project is by creating a tests folder in your project, and setting that as the test root in project properties. A unit test runs some code over a segment of your program checking the input and output. Three sections are worth a closer look here. You also need to select the test framework you want to use. Unit Testing JavaScript Using JQuery QUnit . It's used by the jQuery project to test its code and plugins but is capable of testing any generic JavaScript code (and even capable of testing JavaScript code on the server-side). QUnit: A JavaScript Unit Testing framework. Then fix it … Hence Alex is telling you to spy the prototype ($.fn) for all the jquery objects. Sometime back we talked about unit testing JavaScript code using the JSUnit library. This is easy to do using the npm package installation window. JSUnit provided us with the basic framework to test our JavaScript functions and display the results in an HTML file. These tests allow developers to check individual areas of a program to see where(and why) errors occur.

@NathanLong The problem is that every time you execute a jquery selector, you get a brand new object, so the one you set up to spy upon is going to be different than the one you get inside the code under test. It's used by the jQuery, jQuery UI and jQuery Mobile projects and is capable of testing any generic JavaScript code, including itself ! This comes with an inherent understanding of what you’re trying to test for and how the code should function.

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