How to set the working directory for a <junit> task to something other than the basedir?

Question

I have an Ant script with a junit target where I want it to start up the VM with a different working directory than the basedir. How would I do this?

Here's a pseudo version of my target.

<target name="buildWithClassFiles">
 <mkdir dir="${basedir}/UnitTest/junit-reports"/>
 <junit fork="true" printsummary="yes">
  <classpath>
   <pathelement location="${basedir}/UnitTest/bin"/>
   <path refid="classpath.compile.tests.nojars"/>
  </classpath>
  <jvmarg value="-javaagent:${lib}/jmockit/jmockit.jar=coverage=:html"/>
  <formatter type="xml" />
  <test name="GlobalTests" todir="${basedir}/UnitTest/junit-reports" />
 </junit>

</target>

Answer 1

Have you tried:

 <junit fork="true" printsummary="yes" dir="workingdir">

Answer 2

<batchtest fork="yes" todir="${reports.tests}">
 <fileset dir="${src.tests}">
  <include name="**/*Test*.java"/>
  <exclude name="**/AllTests.java"/>
 </fileset>
</batchtest>

Answer 3

I think the other answers might be overlooking the fact that you want the working directory to be specified, not just that you want to run junit on a particular directory. In other words, you want to make sure that if a test creates a file with no path information, it is from the base directory you are specifying.

Try to pass in the directory you want as a JVM arg to junit, overriding user.dir:

 <junit fork="true" ...>
   <jvmarg value="-Duser.dir=${desired.current.dir}"/>
    ....