public async Task AcceptUserFailsGracefullyWhenEmailDoesNotExist()
        {
            var response = await
                           _controller.Accept(new AcceptRequestInformation("[email protected]",
                                                                           "Monkey", Guid.Empty,
                                                                           Database, "1admin.abc"));

            Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.PreconditionFailed));
        }