@Test
  public void testDeletePet() throws Exception {
    Pet pet = createRandomPet();
    api.addPet(pet);

    Pet fetched = api.getPetById(pet.getId());
    api.deletePet(fetched.getId(), null);

    try {
      fetched = api.getPetById(fetched.getId());
      fail("expected an error");
    } catch (ApiException e) {
      assertEquals(404, e.getCode());
    }
  }