[Asunit-users] Re: Loading before executing tests

[Luke B. <lb...@gm...>]

Hey [AsUnit User],

The TestSuite class is extended by the automated "AllTests.as" classes.

Basically, if you load the xml document and store it as a member
variable on a TestCase, it will be destroyed when the TestCase is
destroyed.

The setUp and tearDown methods are called before and after *each*
"test____" method is called within a TestCase, not before *all*
"test___" methods are called.


The TestCase class code to do this might look like what follows:

	
	// Override the run method of TestCase and get your external data
	private function run():Void {
		// Created a custom class called *ModuleData* that 
		// extends XML and does the following:
		// 1) set the URL TO LOAD = 1st arg in constructor
		// 2) set controller = 2nd arg in constructor
		// 3) call controller.renderNode(this); when xml is loaded
		// Put the instance into a member variable that test functions
		// know to look for. 
		// This object is consumed by members, but not modified by them. 

		mockData = new ModuleData(mockDataSrc, this);
	}
	
	// Have an event handler that gets called when you want the test
	// case to execute.
	public function renderNode(node:XMLNode):Void {
		// call the TestCase run method to begin testing.
		super.run();
	}

	// This will be called BEFORE each method that begins with *test*
	public function setUp():Void {
		defaultInstance = new Style();
		// Pass the XML data to the class under test.
		instance = new Style(mockData.firstChild);
		mockClip = StyleMockClip(attachMovie(StyleMockClip.linkageId));
	}

	// This will be called AFTER each method that begins with *test*
	public function tearDown():Void {
		mockClip.removeMovieClip();
		delete defaultInstance;
		delete instance;
	}
	
I hope that helps - this has been a HUGE deal for us in how we write
tests. Very often now we use XML documents to configure our test case
so that we don't have a bunch of Magic Numbers or even worse - XML
STRINGS floating around.


Thanks,

Luke Bayes
www.asunit.com