ant/src/etc/testcases/taskdefs/dirname.xml

<?xml version="1.0"?>

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

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

  <target name="test2">
    <dirname property="propname"/>
  </target>

  <target name="test3">
    <dirname file="filename"/>
  </target>

  <target name="test4">
    <dirname property="local.dir" file="/usr/local/foo.txt"/>
  </target>

  <target name="test5">
    <dirname property="base.dir" file="foo.txt"/>
  </target>

</project>