Mocha

Mocha was written to quickly execute asynchronous tests for JS code, allowing developers to detect and fix problems in their code.

The Mocha testing toolkit has managed to gain quite a following thanks to its heavily Node.js integration, accurate reporting style, well-organized results page and support for mapping uncaught exceptions to the appropriate line in the test cases.

Utilizing such a tool is very recommended by industry experts, mainly because it allows programmers a means to find and prevent bugs from reaching production environments.

Mocha is inspired by other open-source projects like: QUnit, JSpec (not supported anymore), and Expresso.

What is new in this release:

• Load mocha.opts in _mocha for now.

What is new in version 2.3.3:

• Load mocha.opts in _mocha for now.

What is new in version 2.2.5:

• Load mocha.opts in _mocha for now.

What is new in version 2.2.4:

• Load mocha.opts in _mocha for now.

What is new in version 2.1.0:

• Removed:
• Support for Node 0.6.x, 0.4.x
• Fixes:
• Landing reporter with non ANSI characters
• HTML reporter - preserve query params when navigating to suites/tests
• JSON stream reporter add error message to failed test
• Fixes for visionmedia -> mochajs
• Use stdio, fixes node deprecation warnings

What is new in version 1.20.1:

• Update: should dev dependency to ~4.0.0

What is new in version 1.18.2:

• Fixed:
• HTML runner was prevented from using #mocha as the default root el.

What is new in version 1.18.0:

• Added:
• Promise support
• Named before/after hooks

What is new in version 1.17.1:

• Fixed:
• Expected messages in should.js.
• Expected errno global in node versions < v0.9.11.
• Unreliable checkGlobals optimization.

What is new in version 1.16.2:

• Fixed:
• Couple issues with IE 8
• Issue running the Xunit reporter in browsers
• Issue with Firefox < 3.5

What is new in version 1.15.1:

• Recompiled for missed changes from the last release.

What is new in version 1.13.0:

• Added:
• Sort test files with --sort
• Update:
• diff dependency to 1.0.7
• Glob dependency to 3.2.3
• Fixed:
• diffs show whitespace differences
• Improved global leaks
• Firefox window.getInterface leak

What is new in version 1.11.0:

• Added --prof support
• Added --harmony support
• Added --harmony-generators support
• Added "Uncaught " prefix to uncaught exceptions
• Added web workers support
• Added suite.skip()
• Changed to output # of pending / passing even on failures

Requirements:

• JavaScript enabled on client side
• Node.js 0.8 or higher