public void With_valid_customer_does_not_throw()
{
// Arrange
var sut = new CustomerProvider();
// Act
Action action = () => sut.CreateCustomer(new Customer());
// Assert
action.Should().NotThrow <Exception>();
}
public void With_missing_customer_throws()
{
// Arrange
var sut = new CustomerProvider();
// Act
Action action = () => sut.CreateCustomer(null);
// Assert
action.Should()
.Throw <Exception>()
.WithMessage("Customer is empty");
}