@Test
  public void duplicateServiceInstanceCreationFails() throws Exception {
    ServiceInstance instance = ServiceInstanceFixture.getServiceInstance();

    String url = ServiceInstanceController.BASE_PATH + "/" + instance.getId();
    String body = ServiceInstanceFixture.getCreateServiceInstanceRequestJson();

    serviceInstanceService.createServiceInstance(
        ServiceFixture.getService(),
        instance.getId(),
        instance.getPlanId(),
        instance.getOrganizationGuid(),
        instance.getSpaceGuid());

    mockMvc
        .perform(
            put(url)
                .contentType(MediaType.APPLICATION_JSON)
                .content(body)
                .accept(MediaType.APPLICATION_JSON))
        .andExpect(status().isConflict());

    serviceInstanceService.deleteServiceInstance(
        instance.getId(), instance.getServiceDefinitionId(), instance.getPlanId());
  }