@Test
  public void testMultipleConcordantMappings() throws Exception {
    File testInput = new File(getClass().getResource("4f9f9_fix.txt").getFile());
    String content = new Scanner(testInput).useDelimiter("\\Z").next();
    String key = content.substring(0, content.indexOf("\t"));
    String val = content.substring(content.indexOf("\t") + 1);

    MockOutputCollector mockOutputCollector = new MockOutputCollector();
    mapper.setAlignmentReader(new SAMAlignmentReader());
    mapper.setFaix(
        new FaidxFileHelper("foo") {
          @Override
          public Short getKeyForChromName(String name) throws IOException {
            assertEquals("2", name);
            return (short) 9;
          }
        });
    mapper.setMaxInsertSize(2500);
    mapper.setTargetIsize(300);
    mapper.setTargetIsizeSD(30);
    mapper.map(new Text(key), new Text(val), mockOutputCollector, null);

    assertEquals(9, mockOutputCollector.keys.size());
    assertEquals(new HashSet(mockOutputCollector.keys).size(), mockOutputCollector.keys.size());
  }