build.xml

<project default="test">

    <property name="lib.dir" value="lib"/>

    <path id="classpath">
        <fileset dir="${lib.dir}" includes="**/*.jar"/>
    </path>

    <target name="clean">
        <delete dir="out"/>
    </target>

    <target name="compile">
        <mkdir dir="out/src/classes"/>
        <javac srcdir="src" destdir="out/src/classes"/>
    </target>

    <target name="compileTests">
        <mkdir dir="out/test/classes"/>
        <javac srcdir="test" destdir="out/test/classes" classpathref="classpath" classpath="out/src/classes"/>
    </target>

    <target name="test" depends="compile,compileTests">
        <junit printsummary="yes">
            <classpath>
                <path refid="classpath"/>
                <path path="out/src/classes"/>
                <path path="out/test/classes"/>
            </classpath>

            <formatter type="plain" usefile="false" />

            <batchtest fork="yes">
                <fileset dir="test" includes="**/*Test.java"/>
            </batchtest>
        </junit>
    </target>

</project>