首次提交：本地项目同步到Gitea

LibShapesTests/Core/Command/CommandRecorderTests.cs

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+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Io.Github.Kerwinxu.LibShapes.Core.Command;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Io.Github.Kerwinxu.LibShapes.Core.Command.Tests
+{
+    [TestClass()]
+    public class CommandRecorderTests
+    {
+        [TestMethod()]
+        public void UndoTest()
+        {
+            //// 这个是测试一下是否可以有undo和redo
+            //// 1. 先有画布
+            //UserControlCanvas canvas = new UserControlCanvas();
+            //// 2. 然后新建一个线段
+            //Shape.ShapeLine line = new Shape.ShapeLine() { 
+            //    X=10,
+            //    Y=20,
+            //    Width=30,
+            //    Height=40
+            //};
+            ////手动添加进去
+            //canvas.addShape(line);
+            //// 需要手动建立这个新建命令
+            //// todo
+            ////canvas.commandRecorder.addCommand(
+            ////    new Command.CommandCreate() {
+            ////        canvas = canvas,
+            ////        NewShape=line
+            ////    });
+            //// 3. 添加一个矩形
+            //Shape.ShapeRectangle rect = new Shape.ShapeRectangle()
+            //{
+            //    X = 50,
+            //    Y = 60,
+            //    Width = 70,
+            //    Height = 80
+            //};
+            ////手动添加进去
+            //canvas.addShape(rect);
+            //// 需要手动建立这个新建命令
+            //canvas.commandRecorder.addCommand(
+            //    new Command.CommandCreate()
+            //    {
+            //        canvas = canvas,
+            //        NewShape = rect
+            //    });
+            //// 4. 删除最后一个
+            //canvas.changeSelect(rect);
+            //canvas.deleteShapes();
+            //// 5. 判断有几个形状
+            //Assert.AreEqual(1, canvas.shapes.lstShapes.Count);
+            //// 6. 然后执行undo
+            //canvas.commandRecorder.Undo();
+            //// 7. 判断有几个形状
+            //Assert.AreEqual(2, canvas.shapes.lstShapes.Count);
+            //// 8. 执行redo
+            //canvas.commandRecorder.Redo();
+            //// 9. 判断有几个形状
+            //Assert.AreEqual(1, canvas.shapes.lstShapes.Count);
+
+        }
+    }
+}