MACROMEDIA FLEX 2-TESTING FLEX APPLICATIONS WITH MERCURY QUICKTEST PROFESSIONAL Manual de usuario descargar pdf (Pagina 13)

492Debugging

Now that you can control execution, the feature that people generally use the Debug-

ger for is watching variables.

WATCHING VARIABLES

Watching a variable lets you track the value that the variable is assigned in real time.

You can also manually manipulate the value if you want to experiment with how the

application would behave using another value.

Whether you’ve already launched your application or are about to, you can indi-

cate that you want to watch a variable by doing the following:

1 Right-click the variable name.

2 Select Watch.

Once the variable is added, you should see the variable listed in the Expressions view.

Let’s try it:

1 Set a breakpoint on the line indicated in listing 23.6.

<?xml version="1.0" encoding="utf-8"?>

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">

<mx:Script>

public var myVar:String;

public function setMyVar():void

{

Table 23.4 Flex Builder’s Debugger functions

Icon Function Description

Resume Resumes execution of the application

Suspend Pauses the application

Terminate Terminates the application

Disconnect Disconnects the Debugger from the application

Step Into Steps into the next line of code

Step Over Skips over the next line of code

Step Return Continues the current function until it’s done

Listing 23.6 Using a breakpoint on the line that sets the variable

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 26 27

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MACROMEDIA FLEX 2-TESTING FLEX APPLICATIONS WITH MERCURY QUICKTEST PROFESSIONAL Manual de usuario Pagina 13