src/etc/testcases/taskdefs/gunzip.xml

<?xml version="1.0"?>

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

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

  <target name="test2">
    <gunzip src=""/>
  </target>

  <target name="cleanup">
    <delete file="asf-logo.gif" />
  </target>

  <target name="testGzipTask">
    <ant antfile="gzip.xml" target="realTest" />
    <gunzip src="asf-logo.gif.gz" dest="asf-logo.gif" />
    <ant antfile="gzip.xml" target="cleanup" />
  </target>

  <target name="realTest">
    <gunzip src="expected/asf-logo.gif.gz" dest="asf-logo.gif" />
  </target>

</project>