Тестирование кода. Разворачиваем проект с помощью Apache Ant.

# Путь к flex sdk
FLEX_HOME = 
# URL до архива с тестовым фреймворком
url.flexunit = http://www.eu.apache.org/dist/flex/flexunit/4.2.0/binaries/apache-flex-flexunit-4.2.0-4.12.0-bin.zip
# Путь к директории временных файлов
tmp = ${basedir}/tmp 
# Путь к библиотекам проекта
lib = ${basedir}/lib
# Путь к библиотекам, которые необходимы для тестирования
lib.flexunit = ${lib}/flexunit
# Путь к тестовой директории
test = ${basedir}/test
# Путь к тестовому коду проекта
test.src = ${test}/src
# Путь к отчетам, которые будут генерироваться при тестировании
test.report = ${test}/report

<?xml version="1.0" encoding="utf-8" ?>
<project name="downloads" default="main">
	<property file="build.properties"/>
	<target name="main" depends="-init, download flexunit"/>
	<target name="clean">
		<delete dir="${tmp}" includeEmptyDirs="true" failonerror="false"/>
		<delete dir="${lib.flexunit}" includeEmptyDirs="true" failonerror="false"/>
	</target>
	<target name="download flexunit" depends="-check flexunit libs" unless="flexunit.libs.exists">
		<mkdir dir="${tmp}"/>
		<get src="${url.flexunit}" dest="${tmp}/flexunit.zip"/>
		<unzip src="${tmp}/flexunit.zip" dest="${tmp}"/>
		<copy todir="${lib.flexunit}" verbose="true">
			<fileset dir="${tmp}/flexunit/"/>
		</copy>
		<delete dir="${tmp}" includeEmptyDirs="true" failonerror="false"/>
	</target>
	<target name="-init">
		<mkdir dir="${lib.flexunit}"/>
	</target>
	<target name="-check flexunit libs" description="Checks if flexunit libs and jars exists.">
		<fileset dir="${lib.flexunit}" id="fileset"/>
		<pathconvert refid="fileset" property="flexunit.libs.exists" setonempty="false"/>
	</target>
</project>

<?xml version="1.0" encoding="utf-8" ?>
<project name="tests" basedir="." default="main">
	<property file="build.properties"/>
	<taskdef resource="flexTasks.tasks" classpath="${FLEX_HOME}/ant/lib/flexTasks.jar"/>
	<taskdef name="flexunit" classname="org.flexunit.ant.tasks.FlexUnitTask">
		<classpath>
			<fileset dir="${lib.flexunit}">
				<include name="flexUnitTasks*.jar"/>
			</fileset>
		</classpath>
	</taskdef>
	<target name="main">
		<delete dir="${test.report}" includeEmptyDirs="true" failonerror="false"/>
		<mkdir dir="${test.report}"/>
		<flexunit debug="true" workingDir="${test}" toDir="${test.report}" haltonfailure="false" verbose="true" localTrusted="true">
			<testSource dir="${test.src}">
				<include name="**/*Test.as" />
			</testSource>
			<library dir="${lib.flexunit}">
				<include name="**/flexunit-*.swc"/>
			</library>
		</flexunit>
		<junitreport todir="${test.report}">
			<fileset dir="${test.report}">
				<include name="TEST-*.xml" />
			</fileset>
			<report format="frames" todir="${test.report}" />
		</junitreport>
	</target>
</project>

<?xml version="1.0" encoding="utf-8" ?>
<project name="build" basedir="." default="main">
	<property file="build.properties"/>
	<target name="main" depends="-init">
	</target>
	<target name="test" depends="-init">
		<ant antfile="${basedir}/downloads.xml"/>
		<ant antfile="${basedir}/tests.xml"/>
	</target>
	<target name="-init">
		<mkdir dir="${lib}"/>
		<mkdir dir="${test}"/>
		<mkdir dir="${test.src}"/>
	</target>
</project>

Код AS3:

package {
	import org.flexunit.asserts.assertTrue;
	public class SimpleTest {
 
		[test]
		public function alwaysTrue():void {
			assertTrue(true);
		}
	}
}

...
 [flexunit] Suite: SimpleTest
 [flexunit] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0,012 sec
 [flexunit]
 [flexunit] Results :
 [flexunit]
 [flexunit] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0,012 sec
 [flexunit]
...