Mocha (JavaScript framework)
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JavaScript test framework running on Node.js
For other uses, see Mocha.
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Find sources: "Mocha" JavaScript framework – news · newspapers · books · scholar · JSTOR (August 2014) (Learn how and when to remove this message)
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| Developer(s) | OpenJS Foundation |
|---|---|
| Initial release | 22 November 2011 (2011年11月22日) |
| Stable release | 10.0.0
/ 1 May 2022; 2 years ago (2022年05月01日) |
| Repository | github |
| Written in | JavaScript |
| Platform | Node.js |
| Type | Test automation framework |
| License | MIT |
| Website | mochajs |
Mocha is a JavaScript test framework for Node.js programs, featuring browser support, asynchronous testing, test coverage reports, and use of any assertion library.[1]
Assertion libraries
[edit ]Mocha can be used with most JavaScript assertion libraries, including:
- should.js
- express.js
- chai
- better-assert
- unexpected
Usage and examples
[edit ]$ npminstall-gmocha $ mkdirtest $ $EDITORtest/test.js# or open with your favorite editor
varassert=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){ varfoo=newFoo(128); foo.bar(done); }) }) })