public async void Test_GivenAUser_WhenConfirmEmailOrPhoneNumber_ThenResponseIsNotAltered()
        {
            var cognitoUser = GetCognitoUser();

            userStoreMock.Setup(mock => mock.VerifyUserAttributeAsync(It.IsAny <CognitoUser>(), It.IsAny <string>(), It.IsAny <string>(), It.IsAny <CancellationToken>())).Returns(Task.FromResult(IdentityResult.Success)).Verifiable();
            var output = await userManager.ConfirmEmailAsync(cognitoUser, "code").ConfigureAwait(false);

            Assert.Equal(IdentityResult.Success, output);
            output = await userManager.ConfirmPhoneNumberAsync(cognitoUser, "code").ConfigureAwait(false);

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