groovy-core/src/test/groovy/util/AntTest.xml

<!-- 
does exactly the same as the AntBuilder in AntTest... just to be sure that ant behaves the same
as what we expect from the AntBuilder
 -->
<project name="test" default="full">

    <target name="full">
        <path id="task.path">
            <pathelement location="classes"/>
        </path>
        <taskdef name="spoofcontainer" classname="groovy.util.SpoofTaskContainer" classpathref="task.path"/>
        <taskdef name="spoof" classname="groovy.util.SpoofTask" classpathref="task.path"/>

        <spoofcontainer>
            <spoof foo="123"/>
        </spoofcontainer>
    </target>
	
	<target name="testAntBuilderWithinGroovyTask" description="Test for GROOVY-1602">
		<taskdef name="groovy" classname="org.codehaus.groovy.ant.Groovy"/>
		<echo message="before groovy task"/>
		<groovy>
			ant.echo(message: 'ant builder within groovy task')
		</groovy>
		<echo message="after groovy task"/>
	</target>
</project>