src/test/resources/testng_convert.xml

<!DOCTYPE suite SYSTEM "http://beust.com/testng/testng-1.0.dtd" >

<suite name="JUnit Convert suite" verbose="1" parallel="false" thread-count="2" annotations="javadoc">
   <parameter name="inputDir" value="./test/src/test/convert"/>
   <test name="JUnit Convert">
     <classes>
       <class name="test.convert.JUnitConverterTest"/>
     </classes>
   </test>
</suite>