public void Handle_CustomerDoesNotExist_ThrowArgumentNullException(
            [Frozen] Mock <IRepository <Entities.StoreCustomer> > customerRepoMock,
            AddStoreCustomerContactCommandHandler sut,
            string accountNumber,
            string contactType
            )
        {
            // Arrange
            var command = new AddStoreCustomerContactCommand
            {
                AccountNumber   = accountNumber,
                CustomerContact = new StoreCustomerContactDto
                {
                    ContactType   = contactType,
                    ContactPerson = new PersonDto
                    {
                        EmailAddresses = new List <EmailAddressDto>
                        {
                            new EmailAddressDto
                            {
                                EmailAddress = EmailAddress.Create("*****@*****.**").Value
                            }
                        }
                    }
                }
            };

            customerRepoMock.Setup(x => x.GetBySpecAsync(
                                       It.IsAny <GetStoreCustomerSpecification>(),
                                       It.IsAny <CancellationToken>()
                                       ))
            .ReturnsAsync((Entities.StoreCustomer)null);

            //Act
            Func <Task> func = async() => await sut.Handle(command, CancellationToken.None);

            //Assert
            func.Should().Throw <ArgumentNullException>()
            .WithMessage("Value cannot be null. (Parameter 'storeCustomer')");
        }
        public async Task Handle_CustomerExist_AddStoreCustomerContact(
            [Frozen] Mock <IRepository <Entities.StoreCustomer> > customerRepoMock,
            AddStoreCustomerContactCommandHandler sut,
            string accountNumber,
            string contactType
            )
        {
            //Arrange
            var command = new AddStoreCustomerContactCommand
            {
                AccountNumber   = accountNumber,
                CustomerContact = new StoreCustomerContactDto
                {
                    ContactType   = contactType,
                    ContactPerson = new PersonDto
                    {
                        EmailAddresses = new List <EmailAddressDto>
                        {
                            new EmailAddressDto
                            {
                                EmailAddress = EmailAddress.Create("*****@*****.**").Value
                            }
                        }
                    }
                }
            };

            //Act
            var result = await sut.Handle(command, CancellationToken.None);

            //Assert
            result.Should().NotBeNull();
            customerRepoMock.Verify(x => x.UpdateAsync(
                                        It.IsAny <Entities.StoreCustomer>(),
                                        It.IsAny <CancellationToken>()
                                        ));
        }