* @param testsuites
*/
private void processTestsuites(final AbstractAggregatedTest parent, final File f, final Testsuites testsuites) {
Date fileTs = new Date(f.lastModified());
Testsuite containerSuite = JunitresultFactory.eINSTANCE.createTestsuite();
containerSuite.setName(suitename(f));
containerSuite.getTestsuites().addAll(testsuites.getTestsuites());
// make sure that at least the top level testsuite instances have timestamps
for(Testsuite ts : testsuites.getTestsuites()) {
if(ts.getTimestamp() == null)
ts.setTimestamp(fileTs);
}