@Test(expectedExceptions = IllegalStateException.class)
 public void testStrandlessReadsFailSetStrand() {
   final byte[] bases = {'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A'};
   final byte[] quals = {20, 20, 20, 20, 20, 20, 20, 20};
   GATKSAMRecord read = ArtificialSAMUtils.createArtificialRead(bases, quals, "6M");
   read.setIsStrandless(true);
   read.setReadNegativeStrandFlag(true);
 }
  @Test
  public void testStrandlessReads() {
    final byte[] bases = {'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A'};
    final byte[] quals = {20, 20, 20, 20, 20, 20, 20, 20};
    GATKSAMRecord read = ArtificialSAMUtils.createArtificialRead(bases, quals, "6M");
    Assert.assertEquals(read.isStrandless(), false);

    read.setReadNegativeStrandFlag(false);
    Assert.assertEquals(read.isStrandless(), false);
    Assert.assertEquals(read.getReadNegativeStrandFlag(), false);

    read.setReadNegativeStrandFlag(true);
    Assert.assertEquals(read.isStrandless(), false);
    Assert.assertEquals(read.getReadNegativeStrandFlag(), true);

    read.setReadNegativeStrandFlag(true);
    read.setIsStrandless(true);
    Assert.assertEquals(read.isStrandless(), true);
    Assert.assertEquals(
        read.getReadNegativeStrandFlag(),
        false,
        "negative strand flag should return false even through its set for a strandless read");
  }