FluentValidation 和嵌套验证器

Question

我有一堂课：

public class ClientInfo
{
    public string LabAccount { get; set; }
    //....
}

和验证器类：

public class ClientInfoFluentValidator : AbstractValidator<ClientInfo>
{
    public ClientInfoFluentValidator()
    {
        RuleFor(d => d.LabAccount)
            .NotEmpty()
            .WithMessage("LabAccount is required");

        RuleFor(d => d.LabAccount)
            .Length(8)
            .WithMessage("LabAccount is limited by 8 letters");
        //....
    }
}

然后我有类，它有 ClientInfo 类作为属性：

public class Order
{
    public ClientInfo ClientInfo { get; set; }
    //....
}

和验证器类：

public class OrderFluentValidator : AbstractValidator<Order>
{
    public OrderFluentValidator()
    {
        //...
        RuleFor(d => d.ClientInfo)
            .NotNull()
            .WithMessage("ClientInfo part is required");

        RuleFor(d => d.ClientInfo)
            .SetValidator(new ClientInfoFluentValidator());
    }
}

当我尝试仅验证 ClientInfo 时，它可以工作：

    ClientInfoFluentValidator validator = new ClientInfoFluentValidator();
    [TestMethod]
    public void ClientInfoInvalidLabAccountLength()
    {
        ClientInfo model = new ClientInfo
        {
            LabAccount = "1234567"
            //....
        };

        validator.ShouldHaveValidationErrorFor(d => d.LabAccount, model);
        //....
    }

但是当我尝试验证 Order 类时：

    OrderFluentValidator validator = new OrderFluentValidator();
    [TestMethod]
    public void OrderInfoValid()
    {
        Order model = new Order
        {
            ClientInfo = new ClientInfo
            {
                LabAccount = "1234567"
                //....
            },
            //....
        };

        validator.ShouldHaveValidationErrorFor(d => d.ClientInfo, model);
    }

它说，model 类是有效的。为什么这样？为什么ClientInfo 验证器不起作用？

Answer 1

您需要在子视图模型上指定应该有错误消息的确切属性。这似乎是断言的问题，而不是您的视图模型或验证器：

validator.ShouldHaveValidationErrorFor(d => d.ClientInfo.LabAccount, model);