test: 增加 CreateInstance 扩展方法单元测试

Author: ArgoZhang

test/UnitTestTcpSocket/ActivationExtensionsTest.cs

@@ -0,0 +1,45 @@
+// Copyright (c) BootstrapBlazor & Argo Zhang (argo@live.ca). All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+// Website: https://www.blazor.zone or https://argozhang.github.io/
+
+namespace UnitTestTcpSocket;
+
+public class ActivationExtensionsTest
+{
+    [Fact]
+    public void Activation_Ok()
+    {
+        var type = typeof(Foo);
+        var o = type.CreateInstance();
+        Assert.NotNull(o);
+
+        var foo = o as Foo;
+        Assert.NotNull(foo);
+
+        var foo1 = type.CreateInstance<Foo>();
+        Assert.NotNull(foo1);
+    }
+
+    [Fact]
+    public void Activation_Nest()
+    {
+        var o = typeof(MockNestEntity).CreateInstance<MockNestEntity>([0.01f]);
+        Assert.Equal(0.01f, o?.Rate);
+    }
+
+    [Fact]
+    public void Activation_Fail()
+    {
+        var type = typeof(string);
+        var o = type.CreateInstance([123]);
+        Assert.Null(o);
+
+        var foo = type.CreateInstance<Foo>();
+        Assert.Null(foo);
+    }
+
+    class MockNestEntity(float rate)
+    {
+        public float Rate { get; } = rate;
+    }
+}