build.xml

<project name="groovy_experiments" default="test" basedir=".">

  <path id="lib.classpath">
    <fileset dir="lib">
      <include name="**/*.jar" />
    </fileset>
  </path>

  <path id="test.classpath">
    <pathelement location="gen/classes" />
    <path refid="lib.classpath"/>
  </path>
  
  <target name="clean" description="clean up">
    <delete dir="gen"/>
  </target>
  
  <target name="compile" depends="compile-source,compile-resources"/>
  
  <target name="compile-resources" description="compile the resources ">
    <copy toDir="gen/classes">
      <fileSet dir="test">
        <include name="**/*.txt"/>
      </fileSet>
    </copy>
  </target>

  <target name="compile-source" description="compile the source ">
    <taskdef name="groovyc" classname="org.codehaus.groovy.ant.Groovyc" classpathref="lib.classpath"/>
    
    <mkdir dir="gen/classes"/>
    <groovyc destdir="gen/classes" classpathref="lib.classpath">
      <src path="test"/>
      <javac source="1.7" target="1.7" debug="on"/>
    </groovyc>
  </target>
  
  <taskdef 
      name="junit" 
      classname="org.apache.tools.ant.taskdefs.optional.junit.JUnitTask" 
      classpathref="lib.classpath" />
  
  <property name="test.pattern" value="**/*Test.class" />
  <property name="test.formatter" value="xml"/>
  <property name="test.useFile" value="true"/>

  <target name="test" depends="compile" description="Run unit tests">
    <delete dir="gen/unit" />
    <mkdir dir="gen/unit" />
    
    <junit printsummary="yes" failureproperty="junit.failure" haltonerror="no" haltonfailure="no" fork="yes">
      <formatter type="${test.formatter}" usefile="${test.useFile}" />
      <batchtest todir="gen/unit">
        <fileset dir="gen/classes">
          <include name="${test.pattern}" />
          <exclude name="**/HTTPBuilderTest.class"/>
        </fileset>
      </batchtest>
      <classpath refid="test.classpath" />
    </junit>
    <fail if="junit.failure" message="JUNIT tests failed."/>
  </target>
  
</project>