src/etc/testcases/taskdefs/deltree.xml

<?xml version="1.0"?>

<project name="deltree-test" basedir="." default="test1">

  <target name="test1">
    <deltree/>
  </target>

  <target name="test2">
    <deltree dir="src/etc/testcases/taskdefs.tmp"/>
  </target>

</project>