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Showing posts from May, 2008

Testing Remote Data Services with FlexUnit

This is a short example that describes an approach on testing a Flex remote data access code with FlexUnit. The access to the remote services in Flex is provided via HTTPService, WebService or RemoteObject classes. The requests to the data services are handled asynchronously. That adds a bit more complexity to the unit testing. In this example, I will share a design idea on how to test a client side of the remote data services. This is something I came up with working on my "pet" project.
The "pet" project is a Web application that is based on a three tier architecture: an SQL database, a middleware part implemented with Java, Hibernate, and BlazeDS, and a client tier implemented with Flex. The example shown here works on a client side and tests access to the server-side part of the application. The tests covered in this example are designed to test a user login operation.
The login operation is defined on the server-side class called UserService.
public class UserS…

Building a Flex project with Ant

Here is a quick sample on how to build a simple Flex
"hello world" project with Ant. The "hello world" project contains a src folder with one Flex application file and an Ant build.xml file:


The app.mxml is the main module of the project. It simply has a label with a "Hello World!" text:<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="" layout="absolute">
<mx:Label text="Hello World!"/>
Here is the build.xml source:
<?xml version="1.0"?>
<project name="fx_practice7" default="all">

<!-- Init the build process -->
<target name="init" unless="initialized">
<!-- Name of project and version -->
<property name="FLEX_HOME" location="/Users/mykola/java/flex"/>

<property na…

Using FlexUnit for Stress Testing

I saw quite a few questions in the forums on how to stress
test a Flex application. I thought about it and came up with an idea
that I want to share here.

I think FlexUnit can be used for stress testing. It is not
that difficult. I simply add multiple test runners for each client
application and run all of them asynchronously. Here is the example of
the FlexUnit runner:

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="" xmlns="*"

import flexunit.framework.TestSuite;
import test.TemperatureConverterTest;
import test.ArrayUtilTest;
import mx.collections.ArrayCollection;
import flexunit.flexui.TestRunnerBase;

public var testClients:ArrayCollection;

public var NUMBER_OF_TESTS:int = 100;

private function onCreationComplete():void
var cli…