Re-enable Microsoft.Extensions.Hosting FunctionalTests/TestApp shutdown coverage across local and Helix environments

src/libraries/Microsoft.Extensions.Hosting/tests/FunctionalTests/IntegrationTesting/src/ProcessExtensions.cs

@@ -3,6 +3,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Diagnostics;
 using System.IO;
 using System.Runtime.InteropServices;
@@ -41,11 +42,19 @@ public static void KillTree(this Process process, TimeSpan timeout)
 
         private static void GetAllChildIdsUnix(int parentId, ISet<int> children, TimeSpan timeout)
         {
-            RunProcessAndWaitForExit(
-                "pgrep",
-                $"-P {parentId}",
-                timeout,
-                out var stdout);
+            string stdout;
+            try
+            {
+                RunProcessAndWaitForExit(
+                    "pgrep",
+                    $"-P {parentId}",
+                    timeout,
+                    out stdout);
+            }
+            catch (Win32Exception)
+            {
+                return;
+            }
 
             if (!string.IsNullOrEmpty(stdout))
             {
@@ -72,11 +81,26 @@ private static void GetAllChildIdsUnix(int parentId, ISet<int> children, TimeSpa
 
         private static void KillProcessUnix(int processId, TimeSpan timeout)
         {
-            RunProcessAndWaitForExit(
-                "kill",
-                $"-TERM {processId}",
-                timeout,
-                out var stdout);
+            try
+            {
+                using (Process process = Process.GetProcessById(processId))
+                {
+                    process.Kill();
+                    process.WaitForExit((int)timeout.TotalMilliseconds);
+                }
+            }
+            catch (ArgumentException)
+            {
+                // Ignore if process has already exited.
+            }
+            catch (InvalidOperationException)
+            {
+                // Ignore if process has already exited.
+            }
+            catch (Win32Exception)
+            {
+                // Ignore permission or process-not-found errors.
+            }
         }
 
         private static void RunProcessAndWaitForExit(string fileName, string arguments, TimeSpan timeout, out string stdout)

src/libraries/Microsoft.Extensions.Hosting/tests/FunctionalTests/Microsoft.Extensions.Hosting.Functional.Tests.csproj

@@ -3,8 +3,6 @@
   <PropertyGroup>
     <TargetFrameworks>$(NetCoreAppCurrent);$(NetFrameworkCurrent)</TargetFrameworks>
     <EnableDefaultItems>true</EnableDefaultItems>
-    <!-- ActiveIssue in AssemblyInfo.cs -->
-    <IgnoreForCI>true</IgnoreForCI>
   </PropertyGroup>
 
   <ItemGroup>

src/libraries/Microsoft.Extensions.Hosting/tests/FunctionalTests/Properties/AssemblyInfo.cs

@@ -4,4 +4,3 @@
 using Xunit;
 
 [assembly: CollectionBehavior(CollectionBehavior.CollectionPerAssembly)]
-[assembly: ActiveIssue("https://github.com/dotnet/runtime/issues/34090")] // Note: remove IgnoreForCI from .csproj when reenabling

src/libraries/Microsoft.Extensions.Hosting/tests/FunctionalTests/ShutdownTests.cs

@@ -3,7 +3,6 @@
 
 using System;
 using System.Diagnostics;
-using System.IO;
 using System.Runtime.InteropServices;
 using System.Threading.Tasks;
 using Microsoft.Extensions.Hosting.IntegrationTesting;
@@ -50,23 +49,22 @@ private async Task ExecuteShutdownTest(string testName, string shutdownMechanic)
                 builder.AddXunit(_output);
             });
 
-            // TODO refactor deployers to not depend on source code
-            // see https://github.com/dotnet/extensions/issues/1697 and https://github.com/dotnet/aspnetcore/issues/10268
-#pragma warning disable 0618
-            var applicationPath = string.Empty; // disabled for now
-#pragma warning restore 0618
+            string applicationPath = AppContext.BaseDirectory;
 
             Version version = Environment.Version;
             var deploymentParameters = new DeploymentParameters(
                 applicationPath,
                 RuntimeFlavor.CoreClr,
                 RuntimeArchitecture.x64)
             {
+                ApplicationName = "Microsoft.Extensions.Hosting.TestApp",
                 TargetFramework = $"net{version.Major}.{version.Minor}",
                 ApplicationType = ApplicationType.Portable,
                 PublishApplicationBeforeDeployment = true,
+                PreservePublishedApplicationForDebugging = true,
                 StatusMessagesEnabled = false
             };
+            deploymentParameters.ApplicationPublisher = new ExistingOutputApplicationPublisher(applicationPath);
 
             deploymentParameters.EnvironmentVariables["DOTNET_STARTMECHANIC"] = shutdownMechanic;
 
@@ -154,5 +152,19 @@ private static void WaitForExitOrKill(Process process)
 
             Assert.Equal(0, process.ExitCode);
         }
+
+        private sealed class ExistingOutputApplicationPublisher : ApplicationPublisher
+        {
+            private readonly string _applicationPath;
+
+            public ExistingOutputApplicationPublisher(string applicationPath)
+                : base(applicationPath)
+            {
+                _applicationPath = applicationPath;
+            }
+
+            public override Task<PublishedApplication> Publish(DeploymentParameters deploymentParameters, ILogger logger)
+                => Task.FromResult(new PublishedApplication(_applicationPath, logger));
+        }
     }
 }