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Mocha (JavaScript framework)
JavaScript test framework running on node.js

Mocha is a JavaScript test framework for Node.js programs, featuring browser support, asynchronous testing, test coverage reports, and use of any assertion library.

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Assertion libraries

Mocha can be used with most JavaScript assertion libraries, including:

  • should.js
  • express.js
  • chai
  • better-assert
  • unexpected

Usage and examples

$ npm install -g mocha $ mkdir test $ $EDITOR test/test.js # or open with your favorite editor 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

  • Free and open-source software portal

References

  1. "Mocha - the fun, simple, flexible JavaScript test framework". mochajs.org. https://mochajs.org/