build-impl.xml

<target depends="init,compile-test,-pre-test-run" if="have.tests" name="-do-test-run">
  <scalaProject1:java classname="scala.tools.nsc.MainGenericRunner">
    <customize>
        <classpath>
            <path path="${javac.test.classpath}"></path>
        </classpath>
        <arg line="org.scalatest.tools.Runner -p ${build.test.classes.dir}" />
    </customize>
  </scalaProject1:java>
</target>