Getting started with jasmine

Remarks#

Sometime testing our JavaScript code becomes a tough task. Jasmine is a behavior-driven development framework for testing our JavaScript code. It does not depend on any other JavaScript frameworks. It does not require a DOM. And it has a clean syntax which makes you easily write the tests. You can find the Jasmine documentation here and the project in GitHub.

Versions#

| Version | Release Date |

| 1.0.0     | 2010-09-14 |

| 1.3.0     | 2012-11-27 |

| 2.0.0     | 2013-12-16 |

| 2.1.0     | 2014-11-14 |

| 2.2.0     | 2015-02-02 |

| 2.3.0     | 2015-04-28 |

| 2.4.0     | 2015-12-02 |

| 2.5.0     | 2016-08-30 |

Installation or Setup

Installing Jasmine standalone

Download the latest Jasmine release from the Jasmine release page:

Running Jasmine locally

1. Run Jasmine in the browser by downloading the zip file, extracting it, the referencing the files as follows:

Installing Jasmine using npm (Node Package Manager)

1. Set up project directory for Jasmine

   Create a folder and run npm init this will create an empty package.json file and will ask some questions about your project to fill project json file.

   Add 2 directories app - for the Server and spec - for tests

2. Get Jasmine

   From root project directory run

   npm install jasmine-node --save

   npm install request --save

   npm install express --save

   this will get you the packages

   ./node_packages/.bin/jasmine-node spec will run jasmine binary

   After this your package.json should look similar to this

   package.json file, after which that file should look like this:

   { “name”: “Jasmine”, “version”: “0.0.1”, “description”: “Jasmine”, “main”: “index.js”, “scripts”: { “test”: “./node_modules/.bin/jasmine-node spec” }, “author”: “Me”, “license”: “ISC” }

Install with npm

npm install -g jasmine

If being used with karma, install karma-jasmine

npm install --save-dev karma-jasmine

Hello World

To create a most basic test with Jasmine go to your spec (tests) folder and add file named testSpec.js.

In that file add following:

var request = require("request");

describe("Hello World Test", function() {
  // This is your test bundle

  describe("GET SO", function() {
    //This is testing that http GET works

    it("Checks if SO is online", function() {
      // This is description of your test - this is what you get when it fails
      
      request.get("https://stackoverflow.com/", function(error, response, body) {
        // this is your test body

        expect(response.statusCode).toBe(200);
        // this is your test assertion - it expects status code to be '200'
      });
    });
  });
});