Add test

Author: Youssef1313

test/IntegrationTests/MSTest.Acceptance.IntegrationTests/DeploymentItemTests.cs

@@ -0,0 +1,88 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using Microsoft.Testing.Platform.Acceptance.IntegrationTests;
+using Microsoft.Testing.Platform.Acceptance.IntegrationTests.Helpers;
+using Microsoft.Testing.Platform.Helpers;
+
+namespace MSTest.Acceptance.IntegrationTests;
+
+[TestClass]
+public class DeploymentItemTests : AcceptanceTestBase<DeploymentItemTests.TestAssetFixture>
+{
+    private const string AssetName = nameof(DeploymentItemTests);
+
+    [TestMethod]
+    [OSCondition(OperatingSystems.Windows)]
+    public async Task AssemblyIsLoadedOnceFromDeploymentDirectory()
+    {
+        var testHost = TestHost.LocateFrom(AssetFixture.TargetAssetPath, AssetName, TargetFrameworks.NetFramework[0]);
+        TestHostResult testHostResult = await testHost.ExecuteAsync(cancellationToken: TestContext.CancellationToken);
+        testHostResult.AssertOutputContainsSummary(failed: 0, passed: 1, skipped: 0);
+        testHostResult.AssertExitCodeIs(ExitCodes.Success);
+    }
+
+    public sealed class TestAssetFixture() : TestAssetFixtureBase(AcceptanceFixture.NuGetGlobalPackagesFolder)
+    {
+        private const string Sources = """
+#file DeploymentItemTests.csproj
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFrameworks>$TargetFrameworks$</TargetFrameworks>
+    <EnableMSTestRunner>true</EnableMSTestRunner>
+    <OutputType>Exe</OutputType>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="MSTest.TestFramework" Version="$MSTestVersion$" />
+    <PackageReference Include="MSTest.TestAdapter" Version="$MSTestVersion$" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="TestDeploymentItem.xml">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>
+
+#file TestDeploymentItem.xml
+<?xml version="1.0" encoding="utf-8" ?>
+<Root />
+
+#file TestClass1.cs
+using System;
+using System.Collections.Generic;
+using SYstem.IO;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+[TestClass]
+public sealed class Test1
+{
+    public TestContext TestContext { get; set; }
+
+    [TestMethod]
+    [DeploymentItem("TestDeploymentItem.xml")]
+    public void TestMethod1()
+    {
+        var asm = Assert.ContainsSingle(AppDomain.CurrentDomain.GetAssemblies().Where(a => a.GetName().Name == "DeploymentItemTests"));
+        var path = asm.Location;
+        Assert.AreEqual(TestContext.DeploymentDirectory, Path.GetDirectoryName(path));
+    }
+}
+""";
+
+        public string TargetAssetPath => GetAssetPath(AssetName);
+
+        public override IEnumerable<(string ID, string Name, string Code)> GetAssetsToGenerate()
+        {
+            yield return (AssetName, AssetName,
+                Sources
+                .PatchTargetFrameworks(TargetFrameworks.NetFramework[0])
+                .PatchCodeWithReplace("$MSTestVersion$", MSTestVersion));
+        }
+    }
+
+    public TestContext TestContext { get; set; }
+}