Web Dev .NET

In this post we will examine the 2nd of 4 JavaScript Unit Testing frameworks... JSSpec.

Previous parts of this series...

• JavaScript Unit Testing Part 1: JsUnit

In subsequent posts we will cover QUnit, and YUI Test.

I like this Unit Testing framework a lot more than JsUnit for the following reasons...

• As you can see from the screenshot below, it has a nice interactive Test Runner
• The testing API has an easy to read Fluent Interface (a.k.a. It reads like English)
• The project appears to still be active... the latest version was available on Sep 23, 2008
• The test files don't need to be hosted in a web server in order to run (unlike JsUnit).

Unit Testing Unit Testing

In this post we will examine the 1st of 4 JavaScript Unit Testing frameworks... JsUnit.

In subsequent posts we will cover JSSpec, QUnit, and YUI Test.

First of all, lets define some JavaScript code that we want to Unit Test. I wrote the following Pig Latin JavaScript utility for the sole purpose of this Unit Testing series…

*Note: I am aware the code needs to be refactored. We will address that in a future blog post :) 

         /*const*/ var CONSONANTS = 'bcdfghjklmnpqrstvwxyz';
         /*const*/ var VOWELS = 'aeiou';
         
         function EnglishToPigLatin(english) {
            /*const*/ var SYLLABLE = 'ay';
         
            var pigLatin = '';
               
            if (english != null && english.length > 0 && 
               (VOWELS.indexOf(english[0]) > -1 || CONSONANTS.indexOf(english[0]) > -1 )) {
               if (VOWELS.indexOf(english[0]) > -1) {
                  pigLatin = english + SYLLABLE;
               } else {      
                  var preConsonants = '';
                  for (var i = 0; i < english.length; ++i) {
                     if (CONSONANTS.indexOf(english[i]) > -1) {
                        preConsonants += english[i];
                        if (preConsonants == 'q' && i+1 < english.length && english[i+1] == 'u') {
                           preConsonants += 'u';
                           i += 2;
                           break;
                        }
                     } else {
                        break;
                     }
                  }
                  pigLatin = english.substring(i) + preConsonants + SYLLABLE;
               }
            }
            
            return pigLatin;
         }
      

[More]

JavaScript, Unit Testing JavaScript, Unit Testing