src/etc/testcases/taskdefs/tar.xml

<?xml version="1.0"?>

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

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

  <target name="test2">
    <tar tarfile=""/>
  </target>

  <target name="test3">
    <tar basedir=""/>
  </target>

  <target name="test4">
    <touch file="test4.tar"/>
    <tar tarfile="test4.tar"
         basedir="."/>
  </target>

  <target name="test5">
    <mkdir dir="test5dir"/>
    <tar tarfile="test5.tar"
         basedir="."
         includes="test5dir"/>
  </target>
  
  <target name="cleanup"> 
    <delete file="test4.tar"/>
    <delete file="test5.tar"/>
    <delete dir="test5dir"/>
  </target>
</project>