/** Test method for {@link com.rtg.mode.TranslatedFrame#phase()}. */
 public final void testPhase() {
   for (final TranslatedFrame bi : TranslatedFrame.values()) {
     assertTrue(bi.phase() >= 0 && bi.phase() < 3);
   }
   assertEquals(0, FORWARD1.phase());
   assertEquals(1, FORWARD2.phase());
   assertEquals(2, FORWARD3.phase());
   assertEquals(0, REVERSE1.phase());
   assertEquals(1, REVERSE2.phase());
   assertEquals(2, REVERSE3.phase());
 }