tests/org.eclipse.core.tests.runtime/Plugin_Testing/extensiveFragmentTest/fragmentRequires1Test.xml

<?xml version="1.0" encoding="UTF-8"?>
<fragment
  name="Fragment Requires 1 Test"
  id="fragmentRequires1Test"
  version="1.0"
  plugin-id="requires1Test"
  plugin-version="1.2">

  <requires>
     <import plugin="plugin3"/>
  </requires>

</fragment>