Difference between revisions of "Jasmine (JavaScript testing framework)"

Revision as of 10:41, 25 September 2016

Jasmine is an open source unit testing framework for testing JavaScript code.

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.

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

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.

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!');
  });
});

It is heavily influenced by other unit testing frameworks, such as ScrewUnit, JSSpec, JSpec, and RSpec.

@@ Line 50: / Line 50: @@
 * [https://code.tutsplus.com/tutorials/testing-your-javascript-with-jasmine--net-21229 Testing Your JavaScript With Jasmine] by Andrew Burgess
 * [https://evanhahn.com/how-do-i-jasmine/ How do I Jasmine: a tutorial] by Evan Hahn
+* [https://inviqa.com/blog/testing-javascript-get-started-jasmine-0 Testing Javascript: get started with Jasmine] by Katie Fenn
 === YouTube videos ===