使用Moq无法验证具有默认参数的模拟呼叫

如何解决使用Moq无法验证具有默认参数的模拟呼叫

无论我进行的安装多么普通，尝试在模拟的依赖项上调用验证总是失败。

这是我希望模拟的接口上的方法签名：

Task EnqueueAsync<T>(string factoryId,string clientId,T messageObject,string messageId = null,string messageLabel = null,bool forcePersistence = true,DateTime? scheduledEnqueueTimeUtc = null,Dictionary<string,object> properties = null,double retryTime = 0);

这是我的设置方法：

mockTopic = new Mock<ITopic>();
mockTopic.Setup(m => m.EnqueueAsync(It.IsAny<string>(),It.IsAny<string>(),It.IsAny<bool>(),It.IsAny<DateTime?>(),It.IsAny<Dictionary<string,object>>(),It.IsAny<double>()))
.Callback((string factoryId,string messageObject,string messageId,string messageLabel,bool forcePersistence,DateTime? scheduledEnqueueTimeUtc,object> properties,double retryTime) =>
{
    testProperties = properties;
    testMessageId = messageId;
});

这是我的电话来验证：

mockTopic.Verify(m => m.EnqueueAsync(It.IsAny<string>(),It.IsAny<double>()));

这是来自verify方法的错误消息：

Moq.MockException : 
Expected invocation on the mock once,but was 0 times: m => m.EnqueueAsync<string>(It.IsAny<string>(),It.IsAny<double>())

Performed invocations:

Mock<ITopic:1> (m):

    IServiceBus<Topicclient>.EnqueueAsync<object>(null,null,"","c0fa2b2a-fcb7-4252-964e-cecf97bbeeb9",True,object>,1)

查看比较验证和调用定义的消息，我发现调用之间没有区别。我为此机智。

解决方法

您可以为此使用It.IsAnyType

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Moq;

namespace ConsoleApp24
{
    class Program
    {
        static void Main(string[] args)
        {
            var mock = new Mock<ITopic>();
            var ensureAsyncSetup = mock.Setup(m => m.EnqueueAsync(
                It.IsAny<string>(),It.IsAny<string>(),// By using It.IsAnyType the matcher will work for all T
                It.Is<It.IsAnyType>((v,_) => true),It.IsAny<bool>(),It.IsAny<DateTime?>(),It.IsAny <Dictionary<string,object>>(),It.IsAny<double>()));

            ensureAsyncSetup.Callback((string factoryId,string clientId,object messageObject,string messageId,string messageLabel,bool forcePersistence,DateTime? scheduledEnqueueTimeUtc,Dictionary<string,object> properties,double retryTime) =>
                {
                    Console.WriteLine("This will run");
                });

            // Setup call as verifiable
            ensureAsyncSetup.Verifiable();

            mock.Object.EnqueueAsync(null,null,"","c0fa2b2a-fcb7-4252-964e-cecf97bbeeb9",true,new Dictionary<string,object>(),1);

            // This will pass as the method is called once
            mock.Verify();
        }
    }

    public interface ITopic
    {
        Task EnqueueAsync<T>(string factoryId,T messageObject,string messageId = null,string messageLabel = null,bool forcePersistence = true,DateTime? scheduledEnqueueTimeUtc = null,object> properties = null,double retryTime = 0);
    }
}