如何使用It.IsAny <>TValue匹配对象的某些属性？

如何解决如何使用It.IsAny <>TValue匹配对象的某些属性？

考虑以下代码。它具有BookingRequest，其中包含两个属性。接口IBookingRequestProcessor具有处理BookingRequest的方法。我想创建一个模拟，该模拟将匹配所有与一个属性匹配的BookingRequest对象，而其他属性可以是任何值。

为此，我创建了模拟匹配对象，其匹配属性设置为我要匹配的值，其他属性设置为It.IsAny<>()。但是，我得到Moq.MockException的原因是All invocations on the mock must have a corresponding setup.。

完整的代码如下：

using System;
using Moq;

public class Program {

    public class BookingRequest
    {
        public string FlightId { get; set; }
        public string BookingId { get; set; }

        public BookingRequest() { }

        public BookingRequest(string FlightId,string BookingId)
        {
            this.FlightId = FlightId;
            this.BookingId = BookingId;
        }
    }

    public interface IBookingRequestProcessor
    {
        string ConstantReturn(string param);

        int ProcessBooking(BookingRequest bookingRequest);
    }
    
    public static void Main(String[] args) {
        var bookingRequestMock = new Mock<IBookingRequestProcessor>(MockBehavior.Strict);

        bookingRequestMock
            .Setup(bp => bp.ConstantReturn(It.IsAny<string>()))
            .Returns("AB");

        Console.WriteLine(bookingRequestMock.Object.ConstantReturn(Guid.NewGuid().ToString()));

        Console.WriteLine("----");

        var bookingRequestMatcher = new BookingRequest()
        {
            FlightId = "AB495",BookingId = It.IsAny<string>()
        };

        bookingRequestMock
            .Setup(bp => bp.ProcessBooking(bookingRequestMatcher))
            .Returns(495);

        var bookingRequest = new BookingRequest("AB495",Guid.NewGuid().ToString());
        Console.WriteLine(bookingRequest.FlightId + " --> " + bookingRequestMock.Object.ProcessBooking(bookingRequest));
    }
}

解决方法

模拟对象属性的匹配必须通过Is<TValue>()处理。您可以通过以下方式根据所需属性进行匹配：

bookingRequestMock
    .Setup(bp => bp.ProcessBooking(It.Is<BookingRequest>(br => br.FlightId == "AB495")))
    .Returns(495);