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FlexUnit

Page history last edited by Paulo 1 yr ago

Hello FlexUnit

This Tutorial will show you how to write a simple ActionScript Unit Test Case using FlexUnit.

FlexUnit is a unit testing framework for Flex and ActionScript 3.0 applications. It mimics the functionality of JUnit, a Java unit testing framework, and comes with a graphical test runner.

Main Learning's

After following this tutorial you will learn how to:

Create a FlexUnit Test Case
Add FlexUnit library to a Flex project build path
Run a FlexUnit Test Case

Versions used:

Flex Builder 2
ActionScript 3.0
FlexUnit 0.85

Assumptions:

Flex Builder 2 is properly installed in your machine.

Hello Flex Builder 2 tutorial shows how to download and install flex Builder 2.

Hello ActionScript tutorial shows a Hello World for ActionScript.

Tutorial Steps:

Download and insstall flexunit.zip
1. http://code.google.com/p/as3flexunitlib/downloads/list
3. Extract it (in my case I extracted it to C:\codebase\flex)
Open Flex Builder 2
Create a helloFlexUnit project
1. In Flex Builder, select File > New> Flex Project,
2. Select Basic, and then click Next
3. Type helloFlexUnit as the Project Name
4. Select your code base location (in my case C:\codebase\flex\helloFlexUnit)
6. helloFlexUnit project
Add flexunit.swc to the library path
1. Project/Properties/Flex Build Path/Library Path/Add SWC…
2. Select the flexunit.swc file (in my case it is located atC:\codebase\flex\flexunit\bin\flexunit.swc)
4. Press OK
6. Press OK
Create SillyTest Unit Test
1. Select File > New > ActionScript File (name it SillyTest)
2. Add the following code for SillyTest
3. // ActionScript file
  package
  
  {
  
      import flexunit.framework.TestCase;
  
      import flexunit.framework.TestSuite;
  
      public class SillyTest extends TestCase
  
      {
  
          public function SillyTest(methodName : String){
  
              super(methodName);
  
          }
  
          public static function suite():TestSuite{
  
              var myTS:TestSuite = new TestSuite();
  
              myTS.addTest(new SillyTest("testTheTruth"));
  
              myTS.addTest(new SillyTest("testSum"));
  
              return myTS;
  
          }
  
          public function testTheTruth():void{
  
              assertTrue(true);
  
          }
  
          public function testSum():void{
  
              assertEquals(3, 2+1);
  
          }
  
      }
  
  }
Edit helloFlexUnit.mxml
1. Add eh following code
2. <?xml version="1.0" encoding="utf-8"?>
  <mx:Application
  
      xmlns:mx="http://www.adobe.com/2006/mxml"
  
      xmlns:flexunit="flexunit.flexui.*"
  
      creationComplete="onCreationComplete()"
  
  >
  
      <mx:Script>
  
          <![CDATA[
  
              private function onCreationComplete():void
  
              {
  
                  testRunner.test = SillyTest.suite();
  
                  testRunner.startTest();
  
              }
  
          ]]>
  
      </mx:Script>
  
      <flexunit:TestRunnerBase id="testRunner" width="100%" height="100%" />
  
  </mx:Application>
Run SillyTest Unit Test
1. Run/Run/helloFlexUnit
Why is this unit test silly?

You don’t need to test the ActionScript language (true, 1+2=3). Instead your unit tests should be testing functional code that you write.