如何将单元测试添加到我的流畅验证类中？

Question

我有 ac# 模型类 (Address.cs)，看起来像这样......

namespace myProject.Models
{
    [Validator(typeof(AddressValidator))]
    public class Address
    {
        public string AddressLine1 { get; set; }
        public string PostCode { get; set; }
    }
}

我有一个验证器类（AddressValidator.cs），看起来像这样......

namespace myProject.Validation
{
    public class AddressValidator : AbstractValidator<Address>
    {
        public AddressValidator()
        {
            RuleFor(x => x.PostCode).NotEmpty().WithMessage("The Postcode is required");
            RuleFor(x => x.AddressLine1).MaximumLength(40).WithMessage("The first line of the address must be {MaxLength} characters or less");
        }
    }
}

我想知道如何为我的验证器类添加单元测试，以便我可以测试“地址行 1”最多占用 40 个字符？

Answer 1

您可以使用类似以下内容来做到这一点（这使用 xunit，调整到您喜欢的框架）

public class AddressValidationShould
{
  private AddressValidator Validator {get;}
  public AddressValidationShould()
  {
    Validator = new AddressValidator();
  }

  [Fact]
  public void NotAllowEmptyPostcode()
  {
    var address = new Address(); // You should create a valid address object here
    address.Postcode = string.empty; // and then invalidate the specific things you want to test
    Validator.Validate(address).IsValid.Should().BeFalse();
  }
}

...并且显然创建其他测试来涵盖应该/不应该允许的其他事情。如AddressLine1超过40为无效，40以下为有效。