test: 增加单元测试

Author: ArgoZhang

test/UnitTestTcpSocket/ModbusCrcTest.cs

@@ -0,0 +1,36 @@
+// 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/
+
+using BootstrapBlazor.Components.Utility;
+
+namespace UnitTestTcpSocket;
+
+public class ModbusCrcTest
+{
+    [Fact]
+    public void Computer_Ok()
+    {
+        // 06 00 00 01 7F C9 BA
+        var data = new byte[] { 0x01, 0x06, 0x00, 0x00, 0x01, 0x7F };
+
+        var crc = ModbusCrc16.Compute(data);
+        Assert.Equal("BAC9", crc.ToString("X4"));
+        Assert.Equal("01060000017FC9BA", HexConverter.ToString(ModbusCrc16.Append(data), ""));
+    }
+
+    [Fact]
+    public void Validate_Ok()
+    {
+        var result = ModbusCrc16.Validate([0x01]);
+        Assert.False(result);
+
+        result = ModbusCrc16.Validate([0x01, 0x06, 0x00, 0x00, 0x01, 0x7F, 0xC9, 0xBA]);
+        Assert.True(result);
+
+        result = false;
+        var data = Enumerable.Range(0, 300).Select(i => (byte)Random.Shared.Next(0, 255));
+        result = ModbusCrc16.Validate(ModbusCrc16.Append(data.ToArray()));
+        Assert.True(result);
+    }
+}