Book Image

JavaScript Unit Testing

By : Hazem Saleh
Book Image

JavaScript Unit Testing

By: Hazem Saleh

Overview of this book

<p>The largest challenge for many developers’ day to day life is ensuring the support of, and assuring the reach of, their product. With the ever increasing number of mainstream web browsers this is becoming a more difficult task for JavaScript coders. <br /><br />From the beginning, JavaScript Unit Testing will show you how to reduce the time you spend testing, and automate and ensure efficiency in guaranteeing your success.<br /><br />JavaScript Unit Testing will introduce and help you master the art of efficiently performing and automating JavaScript Unit tests for your web applications.<br /><br />Using the most popular JavaScript unit testing frameworks, you will develop, integrate, and automate all the tests you need to ensure the widest reach and success of your web application.<br /><br />Covering the most popular JavaScript Unit testing frameworks of today, JavaScript Unit Testing is your bible to ensuring the functionality and success of all of your JavaScript and Ajax Web Applications.<br /><br />Starting with Jasmine, you will also learn about, and use, YUITest, QUnit, and JsTestDriver, integrate them into your projects, and use them together to generate reports.<br /><br />Learn to automate these tools, make them work for you, and include the power of these tools in your projects from day one.</p>
Table of Contents (12 chapters)

Writing your first YUI test


The YUI test can contain test suites, test cases, and test functions. A YUI test suite is a group of related test cases. Each test case includes one or more test functions for the JavaScript code. Every test function should contain one or more assertion in order to perform the tests and verify the outputs.

The YUI Test.Suite object is responsible for creating a YUI test suite, while the YUI Test.Case object creates a YUI test case. The add method of the Test.Suite object is used for attaching the test case object to the test suite. The following code snippet shows an example of a YUI test suite:

YUI().use('test', 'console', function(Y){
  var testcase1 = new Y.Test.Case({
    name: "testcase1",
    
    testFunction1: function() {
      //...
    }, 
    testFunction2: function() {  
      //...        
    }    
  });
          
  var testcase2 = new Y.Test.Case({
    name: "testcase2",
    
    testAnotherFunction: function() {
      //...
    }    
  });    ...