Unit Test测试框架中的测试的执行顺序

[ClassInitialize()] [ClassCleanup()] [TestInitialize()] [TestMethod] [TestCleanup()]
在执行一个或多个[TestMethod]输出时， [ClassInitialize()] 最先执行，[ClassCleanup()]最后执行，对于执行每个[TestMethod]，执行顺序是[TestInitialize()] [TestMethod] [TestCleanup()]

using System;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.IO;
namespace UnitTestProject1
{
    [TestClass]
    public class UnitTest1
    {
        static StreamWriter sw = new StreamWriter("C:\\temp\\Test.txt", false);
        [ClassInitialize()]
        public static void MyClassInitialize(TestContext testContext)
        {
            sw.WriteLine("MyClassInitialize");
            sw.Flush();
        }
        [ClassCleanup()]
        public static void MyClassCleanup()
        {
            sw.WriteLine("MyClassCleanup");
            sw.Flush();
        }

        [TestInitialize()]
        public void MyTestInitialize()
        {
            sw.WriteLine("MyTestInitialize");
            sw.Flush();
        }
        [TestCleanup()]
        public void MyTestCleanup()
        {
            sw.WriteLine("MyTestCleanup");
            sw.Flush();
        }
        [TestMethod]
        public void TestMethod1()
        {
            sw.WriteLine("TestMethod1");
            sw.Flush();
        }
        [TestMethod]
        public void TestMethod2()
        {
            sw.WriteLine("TestMethod2");
            sw.Flush();
        }
        [TestMethod]
        public void TestMethod3()
        {
            sw.WriteLine("TestMethod3");
            sw.Flush();
        }
    }
}

3个method一起选中执行的输出

MyClassInitialize

MyTestInitialize
TestMethod1
MyTestCleanup

MyTestInitialize
TestMethod2
MyTestCleanup

MyTestInitialize
TestMethod3
MyTestCleanup

MyClassCleanup

选中一个，执行后的输出

MyClassInitialize
MyTestInitialize
TestMethod1
MyTestCleanup
MyClassCleanup