Nao Haida's weblog

JavaScirpt の Unit Testing フレームワークを調査してみました。
調査してみると想像以上に、大変沢山あることが分かりました。。

全てを比較している暇はないので、選定基準を設け、有望そうなものをピックアックすることにしました。選定基準は以下のようになります。

• Intuitive, simple, but enough API support.
• Easy to introduce.
  • If possible, we don't want to introduce any other run time.
• Ajax testing support (if possible)
• Enough matured or active community supports
• It's more better if the framework have a good compatibility with jQuery.
• It may be useful also if the frameworks can be scripted, or at least callable fro CLI.

この元では、以下の 3 つが有望そうな JavaScript Unit Testing フレームワークとなります。

• JsUnit
• YUI Test
• QUnit

これらの特徴及び、長所、短所を整理すると以下のようになります。(英語ですみません。。)

• JsUnit
  • Feature:
    JsUnit is a Unit Testing framework for client-side (in-browser) JavaScript.
    It is essentially a port of JUnit to JavaScript.
    Also included is a platform for automating the execution of tests on multiple browsers and mutiple machines running different OSs.
    This goes a long way to addressing the old problem of inconsistency in JavaScript implementations across browsers.
  
  
  • Pros: Very matuared. (Its development began in January 2001.
  
  
  • Cons: Now thier community is less active than other frameworks'. (JavaScript and the browser is changing rapidly now, so it's a critical problem.)


• YUI Test
  • Feature:
    Yahoo User Interface Test: YUI Test is a testing framework for browser-based JavaScript solutions.
    Using YUI Test, you can easily add unit testing to your JavaScript solutions.YUI Test features:
    
    
    • Rapid creation of test cases through simple syntax.
    • Advanced failure detection for methods that throw errors.
    • Grouping of related test cases using test suites.
    • Asynchronous tests for testing events and Ajax communication.
    • DOM Event simulation in all A-grade browsers.
    
    
  • Pros:
    • YUI Test does derive some characteristics from nUnit and JUnit.
    • Ajax support officialy.
    • Many Documents
  
  
  • Cons:
    • Not OSS.
    • Not a direct port from any specific xUnit framework.
    • Althogh this script may have good compatibility with YUI, it's not certain that it also have it with jQuery.


• QUnit
  • Feature:
    QUnit is the unit testrunner for the jQuery project.
    It got promoted to a top-level project in May 2008 to make it easier to use in other projects, with focus on jQuery UI.
    It's especially useful for regression testing
  
  
  • Pros:
    • The community is very active.
    • It must be good compatible with jQuery.
  
  
  • Cons: This project started just only month ago.(This script have been being used for jQuery itself since the jQuery project started, though.)