}

  public void testInstantiate_noConstantEnum() throws Exception {
    assertThat(tester.instantiate(NoConstantEnum.class)).isNull();
  }

  public void testInstantiate_oneConstantEnum() throws Exception {
    assertEquals(OneConstantEnum.A, tester.instantiate(OneConstantEnum.class));
  }

  public void testInstantiate_interface() throws Exception {