AngularJS Essentials

Unit Testing
The topics that we'll cover in this chapter are:
• The Jasmine testing framework
• Testing AngularJS components
• Mocking with $httpBackend
• Running tests with Karma
The Jasmine testing framework
Jasmine is an open source testing framework for the JavaScript language developed
by Pivotal Labs. Its syntax is pretty similar to one of the most famous testing
frameworks, RSpec.
Basically, you just need to download it from GitHub at http://jasmine.github.io
and unzip it. Later in this chapter, you'll see how to use it with Karma, a runner that
could offer us many interesting benefits.
To clarify our first step with Jasmine, let's implement a factory function based on our
parkingService example from Chapter 4, Dependency Injection and Services, and use a
Revealing Module Pattern:
parkingFactoryFunction.js
var parkingFactoryFunction = function () {
var _calculateTicket = function (car) {
var departHour = new Date().getHours();
var entranceHour = car.entrance.getHours();
var parkingPeriod = departHour - entranceHour;
var parkingPrice = parkingPeriod * 10;
return {
period: parkingPeriod,
price: parkingPrice
};
};
return {
calculateTicket: _calculateTicket
};
};
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