FamilyOnlyFilter filter = new FamilyOnlyFilter(fam2);
KeyValue kv = new KeyValue(row, fam, qual, 10, val);
ReturnCode code = filter.filterKeyValue(kv);
assertEquals("Didn't filter out non-matching family!", ReturnCode.SKIP, code);
KeyValue accept = new KeyValue(row, fam2, qual, 10, val);
code = filter.filterKeyValue(accept);
assertEquals("Didn't pass matching family", ReturnCode.INCLUDE, code);