add unit test.

test/DotNetCore.CAP.Test/QueueExecutorFactoryTest.cs

+using System;
+using System.Collections.Generic;
+using System.Text;
+using Microsoft.Extensions.DependencyInjection;
+using Xunit;
+
+namespace DotNetCore.CAP.Test
+{
+    public class QueueExecutorFactoryTest
+    {
+        private IServiceProvider _provider;
+
+        public QueueExecutorFactoryTest()
+        {
+            var services = new ServiceCollection();
+            services.AddLogging();
+            services.AddOptions();
+            services.AddCap(x => { });
+            _provider = services.BuildServiceProvider();
+        }
+
+        [Fact]
+        public void CanCreateInstance()
+        {
+            var queueExecutorFactory = _provider.GetService<IQueueExecutorFactory>();
+            Assert.NotNull(queueExecutorFactory);
+
+            var publishExecutor = queueExecutorFactory.GetInstance(Models.MessageType.Publish);
+            Assert.Null(publishExecutor);
+
+            var disPatchExector = queueExecutorFactory.GetInstance(Models.MessageType.Subscribe);
+            Assert.NotNull(disPatchExector);
+        }
+
+        [Fact]
+        public void CanGetSubscribeExector()
+        {
+            var queueExecutorFactory = _provider.GetService<IQueueExecutorFactory>();
+            Assert.NotNull(queueExecutorFactory);
+
+            var publishExecutor = queueExecutorFactory.GetInstance(Models.MessageType.Publish);
+            Assert.Equal(null, publishExecutor);
+        }
+
+
+
+    }
+}

test/DotNetCore.CAP.Test/SubscribeFinderTest.cs

+using System;
+using System.Collections.Generic;
+using System.Text;
+using DotNetCore.CAP.Abstractions;
+using Microsoft.Extensions.DependencyInjection;
+using Xunit;
+
+namespace DotNetCore.CAP.Test
+{
+    public class SubscribeFinderTest
+    {
+        private IServiceProvider _provider;
+
+        public SubscribeFinderTest()
+        {
+            var services = new ServiceCollection();
+            services.AddScoped<ITestService, TestService>();
+            services.AddCap(x => { });
+            _provider = services.BuildServiceProvider();
+        }
+
+        [Fact]
+        public void CanFindControllers()
+        {
+            
+        }
+
+        [Fact]
+        public void CanFindSubscribeService()
+        {
+            var testService = _provider.GetService<ICapSubscribe>();
+            Assert.NotNull(testService);
+            Assert.IsType<TestService>(testService);
+        }
+    }
+
+    public class HomeController
+    {
+
+    }
+
+    public interface ITestService { }
+
+    public class TestService : ITestService, ICapSubscribe
+    {
+        [CapSubscribe("test")]
+        public void Index()
+        {
+
+        }
+    }
+
+    public class CapSubscribeAttribute : TopicAttribute
+    {
+        public CapSubscribeAttribute(string name) : base(name)
+        {
+        }
+    }
+}