JUnit tests in Javascript, using this ant include file which provides the `compile-jsjunit-tests` task

build-jsjunit.xml

<project name='jsjunit'>
  <taskdef resource="net/sf/antcontrib/antcontrib.properties"/>

  <property name='slash' value='${file.separator}'/>
  <path id='classpath'>
    <pathelement path="${junit.jar}"/>
    <pathelement path="${js.jar}"/>
    <pathelement path="${basedir}"/>
  </path>

  <macrodef name='build-interface-file'>
    <attribute name='jspath'/>
    <attribute name='interface'/>
    <attribute name='package'/>
    <attribute name='location'/>
    <sequential>
      <var name='interface.file' value='@{location}${slash}@{interface}.java' />

      <mkdir dir='@{location}'/>
      <echo file='${interface.file}' append='false'>package @{package};</echo>
      <echo file='${interface.file}' append='true' >public interface @{interface} {</echo>
      <concat destfile='${interface.file}' append='true'>
        <path>
          <pathelement location='@{jspath}'/>
        </path>
        <filterchain>
          <linecontainsregexp>
            <regexp pattern='(\btest\w+ = function)|(function test\w+)|(\bsetUp = function)|(function setUp\b)|(\btearDown= function)|(function tearDown\b)'/>
          </linecontainsregexp>
          <replaceregex pattern='.*\b(test\w*).*' replace='public void \1();'/>
          <replaceregex pattern='.*\b(setUp).*' replace='public void setUp();'/>
          <replaceregex pattern='.*\b(tearDown).*' replace='public void tearDown();'/>
        </filterchain>
      </concat>
      <echo file='${interface.file}' append='true' >}</echo>

      <javac srcdir='@{location}'/>
      <delete file='${interface.file}'/>
    </sequential>
  </macrodef>

  <macrodef name='compile-jsjunit-test'>
    <attribute name='jspath'/>
    <attribute name='interface'/>
    <attribute name='package'/>
    <attribute name='dir'/>
    <sequential>
      <java classname='org.mozilla.javascript.tools.jsc.Main'>
        <classpath>
          <path refid='classpath'/>
          <pathelement location='@{dir}'/>
        </classpath>
        <arg value='-extends'/><arg value='junit.framework.TestCase'/>
        <arg value='-implements'/><arg value='@{package}.@{interface}'/>
        <arg value='-package'/><arg value='@{package}'/>
        <arg value='-d'/><arg value='@{dir}'/>
        <arg value='@{jspath}'/>
      </java>
    </sequential>
  </macrodef>

  <macrodef name='compile-jsjunit-tests'>
    <element name='includes' implicit='true' optional='true'/>
    <attribute name='srcdir'/>
    <attribute name='destdir'/>
    <sequential>
      <ac:for param='jspath' xmlns:ac="antlib:net.sf.antcontrib">
        <path>
          <fileset dir='@{srcdir}'>
            <includes/>
          </fileset>
        </path>
        <sequential>
          <propertyregex property='jsfile' input='@{jspath}' regexp='.*${slash}(.*)' select='\1' override='true'/>
          <propertyregex property='name' input='${jsfile}' regexp='(\w+)\..*' select='\1' override='true'/>
          <propertyregex property='subdir' input='@{jspath}' regexp='${basedir}${slash}@{srcdir}${slash}(.*)${slash}${jsfile}' select='\1' override='true'/>
          <propertyregex property='package' input='${subdir}' regexp='${slash}' replace='.' override='true' defaultValue='${subdir}'/>

          <build-interface-file jspath='@{jspath}' interface='${name}Interface' package='${package}' location='@{destdir}${slash}${subdir}' />
          <compile-jsjunit-test jspath='@{jspath}' interface='${name}Interface' package='${package}' dir='@{destdir}' />
        </sequential>
      </ac:for>
    </sequential>
  </macrodef>
</project>