QUnit is a JavaScript unit testing framework. While heavily used by the jQuery Project for testing jQuery, jQuery UI and jQuery Mobile, it can be used to test any generic JavaScript code. Testing server-side code is possible as well, but QUnit's features are focused on the challenges of testing code in the browser.

QUnit’s assertion methods follow the CommonJS unit testing specification, which was to some degree influenced by QUnit.

History

QUnit was originally developed by John Resig as part of jQuery. In 2008 it got its own home, name and API documentation, allowing others to use it for their unit testing as well. At the time it still depended on jQuery. A rewrite in 2009 fixed that, and QUnit now runs completely standalone.

Usage and examples

QUnit uses a set of top-level functions to provide semantic meaning in unit tests:

• module(string) - defines a module
• test(string, function) - defines a test
• ok(boolean, string) - validates to true or false
• equal(value1, value2, message) - compares two values, using the double-equal comparator
• deepEqual(value1, value2, message) - compares two values based on their content, not just their identity
• strictEqual(value1, value2, message) - strictly compares two values, using the triple-equal comparator

A basic example would be as follows:

test("a basic test example", function() {
  ok( true, "this test is fine" );
  var value = "hello";
  equal( value, "hello", "We expect value to be hello" );
});

See also

Free software portal

• List of unit testing frameworks
• Jasmine

References

External links

• QUnit - Unit testing framework from jQuery
• QUnit on Github
• jQuery Testing Team Planning Wiki