src/test/resources/sanitycheck/test2.xml

<?xml version="1.0" encoding="UTF-8"?>
<suite name="SanityCheck tests 2">
  <test name="SanityCheck:Tests" preserve-order="true">
    <classes>
      <class name="test.sanitycheck.SampleTest1"/>
    </classes>
  </test>
  <test name="SanityCheck:Tests:Another" preserve-order="true">
    <classes>
      <class name="test.sanitycheck.SampleTest3"/>
    </classes>
  </test>
</suite>