@Test(dataProvider = "RBPCountingTest")
 public void testRBPCountingTestMultiSample(RBPCountTest params) {
   final RBPCountTest newSample = new RBPCountTest(2, 1, 1);
   final Map<String, ReadBackedPileupImpl> pileupsBySample =
       new HashMap<String, ReadBackedPileupImpl>();
   pileupsBySample.put(newSample.sample, newSample.makePileup());
   pileupsBySample.put(params.sample, params.makePileup());
   final ReadBackedPileup pileup = new ReadBackedPileupImpl(loc, pileupsBySample);
   testRBPCounts(
       pileup, new RBPCountTest(params.nReads + 2, params.nMapq0 + 1, params.nDeletions + 1));
 }
 @Test(dataProvider = "RBPCountingTest")
 public void testRBPCountingTestSinglePileup(RBPCountTest params) {
   testRBPCounts(params.makePileup(), params);
 }