Mocha (JavaScript framework)

Mocha

Initial release	22 November 2011 (2011-11-22)
Stable release	2.1.0 / 23 December 2014 (2014-12-23)
Written in	JavaScript
Type	Test automation framework
License	MIT
Website	mochajs.org

Mocha is a JavaScript test framework running on node.js, featuring browser support, asynchronous testing, test coverage reports, and use of any assertion library.

Usage and examples

$ npm install -g mocha
$ mkdir test

var assert = require("assert")
describe('Foo', function(){
  describe('#getBar(value)', function(){
    it('should return 100 when value is negative') // placeholder
    it('should return 0 when value is positive', function(){
      assert.equal(0, Foo.getBar(10));
    })
  })
})

$ mocha
.
1 test complete (1ms)

For asynchronous testing, invoke the callback, and Mocha will wait for completion.

describe('Foo', function(){
  describe('#bar()', function(){
    it('should work without error', function(done){
      var foo = new Foo(128);
      foo.bar(done);
    })
  })
})

See also

• List of unit testing frameworks
• Jasmine
• QUnit

External links

• GitHub repository
• Guide to mocha