MyClassTest/MyClassesTest/FileProcessTest.cs

using Microsoft.VisualStudio.TestPlatform.PlatformAbstractions.Interfaces;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using MyClasses;
using System;
using System.IO;

namespace MyClassesTest
{
    [TestClass]
    public class FileProcessTest : TestBase
    {
        private const string BAD_FILE_NAME = @"C:\NotExists.bad";

        [ClassInitialize()]
        public static void ClassInitialize(TestContext tc)
        {
            // TODO Initialize for all tests in class
            tc.WriteLine("In ClassInitialize() method");
        }

        [ClassCleanup()]
        public static void ClassCleanup()
        {
            // TODO Cleanup after all test in class
        }

        [TestInitialize]
        public void TestInitialize()
        {
            TestContext.WriteLine("In TestInitialize() method");
            WriteDescription(this.GetType()); // <-- See TestBase
            if (TestContext.TestName.StartsWith("FileNameDoesExist"))
            {
                SetGoodFileName();
                if (!string.IsNullOrEmpty(_goodFileName))
                {
                    TestContext.WriteLine("Creating file: " + _goodFileName);
                    // Create the 'Good' file
                    File.AppendAllText(_goodFileName, "Some Text");
                }
            }
        }

        [TestCleanup]
        public void TestCleanup()
        {
            TestContext.WriteLine("In TestCleanup() method");
            if (TestContext.TestName.StartsWith("FileNameDoesExist"))
            {
                // Delete File
                if (File.Exists(_goodFileName))
                {
                    TestContext.WriteLine("Deleting file: " + _goodFileName);
                    File.Delete(_goodFileName);
                }
            }
        }

        [TestMethod]
        [DataRow(1, 1, DisplayName = "First Test (1,1)")]
        [DataRow(42, 42, DisplayName = "Second Test (42,42)")]
        public void AreNumbersEqual(int num1, int num2)
        {
            Assert.AreEqual(num1, num2);
        }

        [TestMethod]
        [DeploymentItem("FileToDeploy.txt")]
        [DataRow(@"C:\Windows\Regedit.exe", DisplayName = "Regedit.exe")]
        [DataRow("FileToDeploy.txt", DisplayName = "Deployment Item: FileToDeploy.txt")]
        public void FileNameUsingDataRow(string fileName)
        {
            FileProcess fp = new FileProcess();
            bool fromCall;

            if (!fileName.Contains(@"\"))
            {
                fileName = TestContext.DeploymentDirectory + @"\" + fileName;
            }
            TestContext.WriteLine("Checking File " + fileName);
            fromCall = fp.FileExists(fileName);
            Assert.IsTrue(fromCall);
        }

        [TestMethod]
        [Description("Check to see if a file exists.")]
        [Owner("Sylvain")]
        [Priority(1)]
        [TestCategory("NoException")]
        //[Ignore]
        public void FileNameDoesExist()
        {
            FileProcess fp = new FileProcess();
            bool fromCall;

            TestContext.WriteLine(@"Checking File " + _goodFileName);

            fromCall = fp.FileExists(_goodFileName);

            Assert.IsTrue(fromCall);
        }

        //[TestMethod]
        [Timeout(4000)]
        public void SimulateTimeout()
        {
            System.Threading.Thread.Sleep(200);
        }

        [TestMethod]
        [Description("Check to see if a file does not exists.")]
        [Owner("Sylvain")]
        [Priority(1)]
        [TestCategory("NoException")]
        public void FileNameDoesNotExist()
        {
            FileProcess fp = new FileProcess();
            bool fromCall;
            TestContext.WriteLine(@"Checking File " + BAD_FILE_NAME);
            fromCall = fp.FileExists(BAD_FILE_NAME);
            Assert.IsFalse(fromCall);
        }

        [TestMethod]
        [ExpectedException(typeof(ArgumentNullException))]
        [Description("Check for a throw ArgumentNullException using ExceptedException.")]
        [Owner("Sylvain")]
        [Priority(2)]
        [TestCategory("Exception")]
        public void FileNameNullOrEmpty_UsingAttribute()
        {
            FileProcess fp = new FileProcess();
            fp.FileExists("");
        }

        [TestMethod]
        [Description("Check for a throw ArgumentNullException using try...catch.")]
        [Owner("Sylvain")]
        [Priority(2)]
        [TestCategory("Exception")]
        public void FileNameNullOrEmpty_UsingTryCatch()
        {
            FileProcess fp = new FileProcess();

            try
            {
                fp.FileExists("");
            }
            catch (ArgumentNullException)
            {
                // Test was a success
                return;
            }
            // Fail the test
            Assert.Fail("Call to FileExists() dit NOT throw an ArgumentNullException.");
        }
    }
}