EnvJasmine: Jasmine test runner for EnvJS.

EnvJasmine allows you to run headless JavaScript tests.

Creating New Specs

Add your Jasmine Spec files to the specs directory to be run.

IMPORTANT: Make sure to load the file you are planning to test as the first line of the spec file using the load("file.js"); function.

Running JavaScript tests

To run the JavaScript test suite, execute the following:

bin/run_all_tests.sh

To run an individual spec file, execute the following:

bin/run_test.sh specs/[your spec file].js

Adding Dependencies

Sometimes you will have libraries that you need to load for any of your JavaScript files to work. To make sure these are loaded before your tests are run, include them in the include/dependencies.js file using the load("file.js"); function.

Based on info from:

• JavaScript BDD, with Jasmine, without a browser
• Rhino
• EnvJS
• Jasmine
• Jasmine Jquery

Originally created by Jeff Avallone and Trevor Lalish-Menagh. See LICENSE for lincensing information.

See CHANGELOG for changelog information.

Current version is found in the VERSION file.

A Basic Tutorial

How to set up EnvJasmine within a basic web project. Note that this tutorial assumes you’re working within a *nix environment.

1. Create a project directory.

Create a directory in which to house your project. Let’s call this demo. After creating the directory, enter it:

mkdir demo
cd demo

2. Create a JavaScript directory.

Create a js directory inside demo to house JavaScript files:

mkdir js

3. Create a tests directory.

Create a directory in demo to house your tests. As is often customary, let’s call this directory tests:

mkdir tests

4. Integrate EnvJasmine into the project.

Clone EnvJasmine into your tests directory:

git clone https://github.com/trevmex/EnvJasmine.git tests

or

git clone git://github.com/trevmex/EnvJasmine.git tests

5. Create a JavaScript file.

For the purposes of this example, let’s assume we need to create some JavaScript that adds two numbers and returns their sum. Let’s create a JavaScript file to house this code:

touch js/add-numbers.js

6. Create a spec file.

Create an EnvJasmine spec file, inside of which we’ll write a test against the functionality of js/add-numbers.js:

touch tests/EnvJasmine/specs/add-numbers.spec.js

7. Load the necessary JavaScript into the test spec.

Inside tests/EnvJasmine/specs/add-numbers.spec.js, let’s load the file containing the code we’re testing, in this case js/add-numbers.js. This can be done by adding the following line:

EnvJasmine.load(EnvJasmine.jsDirectory + "add-numbers.js");

8. Configure your EnvJasmine.

But what’s this EnvJasmine.jsDirectory business? It’s a configuratioon variable used to define the primary directory housing your JavaScript. To define this variable, open tests/EnvJasmine/include/dependencies.js and change line 6 to read:

EnvJasmine.jsDirectory = EnvJasmine.rootDir + "/../../js/";

Please note the need for the leading slash.

9. Write the framework for a basic test.

In add-numbers.spec.js, sketch out the basic framework for a unit test against the functionality within js/add-numbers.js. Let’s assume this file contains a single function, addNumbers():

describe("addNumbers", function () {
    it("returns the sum of the two integers it's passed", function() {
        // test specifics will go here
    });
});

10. Write the code testing outlining expected behavior of a unit of JavaScript.

Utilizing Jasmine syntax and matchers, write the code testing the expected behavior of addNumbers():

describe("addNumbers", function () {
    it("returns the sum of the two integers it's passed", function() {
        expect(addNumbers(1, 2)).toEqual(3);
    });
});

11. Run the test.

Run the test from the command line:

./tests/EnvJasmine/bin/run_test.sh tests/EnvJasmine/specs/add-numbers.spec.js

Note that the above command will run just the add-numbers.spec.js code. To run all tests:

./tests/EnvJasmine/bin/run_all_tests.sh

Also note that at this stage, the test should fail as we have not yet written the addNumbers() function.

12. Write your JavaScript

Write just enough code in js/add-numbers.js to make the test pass:

function addNumbers(a, b) {
    return a + b;
}

13. Run the test again.

Run the test again and confirm that it passes:

./tests/EnvJasmine/bin/run_test.sh tests/EnvJasmine/specs/add-numbers.spec.js