Jasmine (JavaScript testing framework)

From Wikipedia, the free encyclopedia
  (Redirected from JsUnit)
Jump to: navigation, search
Logo jasmine.svg
Developer(s) Pivotal Labs
Initial release September 14, 2010; 6 years ago (2010-09-14)[1]
Stable release
Development status Active
Written in JavaScript
Operating system Cross-platform
Type Unit Test
License MIT License
Website http://jasmine.github.io/

Jasmine is an open source testing framework for JavaScript.[2] It aims to run on any JavaScript-enabled platform, to not intrude on the application nor the IDE, and to have easy-to-read syntax. It is heavily influenced by other unit testing frameworks, such as ScrewUnit, JSSpec, JSpec, and RSpec.[3]


Jasmine aims to be easy to read. A simple hello world test looks like the code below, where describe() describes a suite of tests and it() is an individual test specification. The name "it()" follows the idea of behavior-driven development and serves as the first word in the test name, which should be a complete sentence. Usage follows syntax similar to that of RSpec.

The code below tests this function

function helloWorld() {
  return 'Hello world!';

and verifies that its output is indeed the text "Hello world!".

describe('Hello world', function() {
  it('says hello', function() {
    expect(helloWorld()).toEqual('Hello world!');

Jasmine has a number of other features, such as custom matchers, spies, and support for asynchronous specifications.


The developers at Pivotal Labs for Jasmine previously developed a similar unit testing framework called JsUnit before active development of Jasmine.[4]

See also[edit]


External links[edit]