public async void Test_GivenAUser_WhenResendSignupConfirmationCode_ThenResponseIsNotAltered()
        {
            userStoreMock.Setup(mock => mock.ResendSignupConfirmationCodeAsync(It.IsAny <CognitoUser>(), It.IsAny <CancellationToken>())).Returns(Task.FromResult(IdentityResult.Success)).Verifiable();
            var output = await userManager.ResendSignupConfirmationCodeAsync(GetCognitoUser()).ConfigureAwait(false);

            Assert.Equal(IdentityResult.Success, output);
            userStoreMock.Verify();
        }