add unit tests.

test/DotNetCore.CAP.Test/ConsumerServiceSelectorTest.cs

@@ -45,6 +45,7 @@ namespace DotNetCore.CAP.Test
             Assert.NotNull(bestCandidates.MethodInfo);
             Assert.Equal(bestCandidates.MethodInfo.ReturnType, typeof(Task));
         }
+
     }
 
     public class CandidatesTopic : TopicAttribute
@@ -87,6 +88,11 @@ namespace DotNetCore.CAP.Test
         {
             Console.WriteLine("GetBar2() method has bee excuted.");
         }
+
+        public void GetBar3()
+        {
+            Console.WriteLine("GetBar3() method has bee excuted.");
+        }
     }
 
 }

test/DotNetCore.CAP.Test/ObjectMethodExecutorTest.cs

@@ -0,0 +1,93 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Reflection;
+using DotNetCore.CAP.Internal;
+using Xunit;
+
+namespace DotNetCore.CAP.Test
+{
+    public class ObjectMethodExecutorTest
+    {
+
+        [Fact]
+        public void CanCreateInstance()
+        {
+            var testClass = new MethodExecutorClass();
+            var methodInfo = testClass.GetType().GetMethod("Foo");
+
+            var executor = ObjectMethodExecutor.Create(methodInfo, typeof(MethodExecutorClass).GetTypeInfo());
+
+            Assert.NotNull(executor);
+        }
+
+        [Fact]
+        public void CanExcuteMethodWithNoParameters()
+        {
+            var testClass = new MethodExecutorClass();
+            var methodInfo = testClass.GetType().GetMethod("GetThree");
+
+            var executor = ObjectMethodExecutor.Create(methodInfo, typeof(MethodExecutorClass).GetTypeInfo());
+
+            Assert.NotNull(executor);
+
+            var objResult = executor.Execute(testClass, null);
+
+            Assert.Equal(3, objResult);
+        }
+
+        [Fact]
+        public void CanExcuteMethodWithParameters()
+        {
+            var testClass = new MethodExecutorClass();
+            var methodInfo = testClass.GetType().GetMethod("Add");
+
+            var executor = ObjectMethodExecutor.Create(methodInfo, typeof(MethodExecutorClass).GetTypeInfo());
+
+            Assert.NotNull(executor);
+
+            var objResult = executor.Execute(testClass, 1, 2);
+
+            Assert.Equal(3, objResult);
+        }
+
+
+        [Fact]
+        public void CanGetExcuteMethodDefaultValue()
+        {
+            var testClass = new MethodExecutorClass();
+            var methodInfo = testClass.GetType().GetMethod("WithDefaultValue");
+
+            var executor = ObjectMethodExecutor.Create(methodInfo, typeof(MethodExecutorClass).GetTypeInfo());
+
+            var objResult = executor.GetDefaultValueForParameter(0);
+            Assert.Equal("aaa", objResult);
+
+            var objResult2 = executor.GetDefaultValueForParameter(1);
+            Assert.Equal("bbb", objResult2);
+        }
+    }
+
+    public class MethodExecutorClass
+    {
+        public void Foo()
+        {
+
+        }
+
+        public int GetThree()
+        {
+            return 3;
+        }
+
+        public int Add(int a, int b)
+        {
+            return a + b;
+        }
+
+        public void WithDefaultValue(string aaa = "aaa", string bbb = "bbb")
+        {
+
+        }
+    }
+}