From 56ea6cc336d3eb2a879c214e93708ac7eb98a9ef Mon Sep 17 00:00:00 2001
From: Brennan <brecon@microsoft.com>
Date: Thu, 1 Oct 2020 12:57:44 -0700
Subject: [PATCH 1/4] Enable test logging for ProjectTemplate tests

---
 src/ProjectTemplates/test/ProjectTemplates.Tests.csproj | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/ProjectTemplates/test/ProjectTemplates.Tests.csproj b/src/ProjectTemplates/test/ProjectTemplates.Tests.csproj
index d0142cdf6eae..f37ad82a4522 100644
--- a/src/ProjectTemplates/test/ProjectTemplates.Tests.csproj
+++ b/src/ProjectTemplates/test/ProjectTemplates.Tests.csproj
@@ -21,7 +21,6 @@
     <TestTemplateCreationFolder>TestTemplates\</TestTemplateCreationFolder>
     <TestPackageRestorePath>$([MSBuild]::EnsureTrailingSlash('$(RepoRoot)'))obj\template-restore\</TestPackageRestorePath>
     <TestTemplateTestsProps>TemplateTests.props</TestTemplateTestsProps>
-    <GenerateLoggingTestingAssemblyAttributes>false</GenerateLoggingTestingAssemblyAttributes>
     <TestDependsOnAspNetRuntime>true</TestDependsOnAspNetRuntime>
   </PropertyGroup>
 

From e454bc763f0d1e1f9c9496c761c6b73148355276 Mon Sep 17 00:00:00 2001
From: BrennanConroy <brecon@microsoft.com>
Date: Thu, 1 Oct 2020 15:35:23 -0700
Subject: [PATCH 2/4] Add logging to templates

---
 .../Shared/TestOutputLogger.cs                | 28 +++++++++++++++++++
 src/ProjectTemplates/test/GrpcTemplateTest.cs |  2 +-
 src/ProjectTemplates/test/MvcTemplateTest.cs  | 26 ++++++++++++++---
 .../test/ProjectTemplates.Tests.csproj        |  1 +
 4 files changed, 52 insertions(+), 5 deletions(-)
 create mode 100644 src/ProjectTemplates/Shared/TestOutputLogger.cs

diff --git a/src/ProjectTemplates/Shared/TestOutputLogger.cs b/src/ProjectTemplates/Shared/TestOutputLogger.cs
new file mode 100644
index 000000000000..d239f9638f6c
--- /dev/null
+++ b/src/ProjectTemplates/Shared/TestOutputLogger.cs
@@ -0,0 +1,28 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using Microsoft.Extensions.Logging;
+using Xunit.Abstractions;
+
+namespace Templates.Test.Helpers
+{
+    internal class TestOutputLogger : ITestOutputHelper
+    {
+        private ILogger _logger;
+
+        public TestOutputLogger(ILogger logger)
+        {
+            _logger = logger;
+        }
+
+        public void WriteLine(string message)
+        {
+            _logger.LogInformation(message);
+        }
+
+        public void WriteLine(string format, params object[] args)
+        {
+            _logger.LogInformation(string.Format(format, args));
+        }
+    }
+}
diff --git a/src/ProjectTemplates/test/GrpcTemplateTest.cs b/src/ProjectTemplates/test/GrpcTemplateTest.cs
index e2e68402225f..1029d2a7b1fc 100644
--- a/src/ProjectTemplates/test/GrpcTemplateTest.cs
+++ b/src/ProjectTemplates/test/GrpcTemplateTest.cs
@@ -34,7 +34,7 @@ public async Task GrpcTemplate()
             using var testLog = assemblyLog.StartTestLog(Output, nameof(GrpcTemplateTest), out var loggerFactory);
             var logger = loggerFactory.CreateLogger("TestLogger");
 
-            Project = await ProjectFactory.GetOrCreateProject("grpc", Output);
+            Project = await ProjectFactory.GetOrCreateProject("grpc", new TestOutputLogger(logger));
 
             var createResult = await Project.RunDotNetNewAsync("grpc");
             Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", Project, createResult));
diff --git a/src/ProjectTemplates/test/MvcTemplateTest.cs b/src/ProjectTemplates/test/MvcTemplateTest.cs
index 9bbe8fdc836a..e909a547efce 100644
--- a/src/ProjectTemplates/test/MvcTemplateTest.cs
+++ b/src/ProjectTemplates/test/MvcTemplateTest.cs
@@ -5,8 +5,10 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Reflection;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Testing;
+using Microsoft.Extensions.Logging;
 using Templates.Test.Helpers;
 using Xunit;
 using Xunit.Abstractions;
@@ -27,15 +29,31 @@ public MvcTemplateTest(ProjectFactoryFixture projectFactory, ITestOutputHelper o
         public ITestOutputHelper Output { get; }
 
         [Fact]
-        public async Task MvcTemplate_NoAuthFSharp() => await MvcTemplateCore(languageOverride: "F#");
+        public async Task MvcTemplate_NoAuthFSharp()
+        {
+            // Setup AssemblyTestLog
+            var assemblyLog = AssemblyTestLog.Create(Assembly.GetExecutingAssembly(), baseDirectory: Project.ArtifactsLogDir);
+            using var testLog = assemblyLog.StartTestLog(Output, nameof(MvcTemplateTest), out var loggerFactory);
+            var logger = loggerFactory.CreateLogger("TestLogger");
+
+            await MvcTemplateCore(languageOverride: "F#", logger);
+        }
 
         [ConditionalFact]
         [SkipOnHelix("cert failure", Queues = "OSX.1014.Amd64;OSX.1014.Amd64.Open")]
-        public async Task MvcTemplate_NoAuthCSharp() => await MvcTemplateCore(languageOverride: null);
+        public async Task MvcTemplate_NoAuthCSharp()
+        {
+            // Setup AssemblyTestLog
+            var assemblyLog = AssemblyTestLog.Create(Assembly.GetExecutingAssembly(), baseDirectory: Project.ArtifactsLogDir);
+            using var testLog = assemblyLog.StartTestLog(Output, nameof(MvcTemplateTest), out var loggerFactory);
+            var logger = loggerFactory.CreateLogger("TestLogger");
+
+            await MvcTemplateCore(languageOverride: null, logger);
+        }
 
-        private async Task MvcTemplateCore(string languageOverride)
+        private async Task MvcTemplateCore(string languageOverride, ILogger logger)
         {
-            Project = await ProjectFactory.GetOrCreateProject("mvcnoauth" + (languageOverride == "F#" ? "fsharp" : "csharp"), Output);
+            Project = await ProjectFactory.GetOrCreateProject("mvcnoauth" + (languageOverride == "F#" ? "fsharp" : "csharp"), new TestOutputLogger(logger));
 
             var createResult = await Project.RunDotNetNewAsync("mvc", language: languageOverride);
             Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", Project, createResult));
diff --git a/src/ProjectTemplates/test/ProjectTemplates.Tests.csproj b/src/ProjectTemplates/test/ProjectTemplates.Tests.csproj
index f37ad82a4522..d0142cdf6eae 100644
--- a/src/ProjectTemplates/test/ProjectTemplates.Tests.csproj
+++ b/src/ProjectTemplates/test/ProjectTemplates.Tests.csproj
@@ -21,6 +21,7 @@
     <TestTemplateCreationFolder>TestTemplates\</TestTemplateCreationFolder>
     <TestPackageRestorePath>$([MSBuild]::EnsureTrailingSlash('$(RepoRoot)'))obj\template-restore\</TestPackageRestorePath>
     <TestTemplateTestsProps>TemplateTests.props</TestTemplateTestsProps>
+    <GenerateLoggingTestingAssemblyAttributes>false</GenerateLoggingTestingAssemblyAttributes>
     <TestDependsOnAspNetRuntime>true</TestDependsOnAspNetRuntime>
   </PropertyGroup>
 

From 29373317c60dbe27ece41aacedc58dce471ab411 Mon Sep 17 00:00:00 2001
From: BrennanConroy <brecon@microsoft.com>
Date: Fri, 2 Oct 2020 13:19:59 -0700
Subject: [PATCH 3/4] some updates

---
 .../AssemblyInfo.AssemblyFixtures.cs          |   2 +-
 ...soft.AspNetCore.Components.E2ETests.csproj |   2 -
 .../AssemblyInfo.AssemblyFixtures.cs          |   8 +-
 .../BlazorTemplates.Tests.csproj              |  13 +-
 .../Shared/ProjectFactoryFixture.cs           |   2 +-
 .../Shared/TestOutputLogger.cs                |   2 +-
 .../test/AssemblyInfo.AssemblyFixtures.cs     |   7 +-
 src/ProjectTemplates/test/BaselineTest.cs     |   6 +-
 .../test/ByteOrderMarkTest.cs                 |   8 +-
 .../test/EmptyWebTemplateTest.cs              |  30 ++---
 src/ProjectTemplates/test/GrpcTemplateTest.cs |  44 +++----
 .../test/IdentityUIPackageTest.cs             |  38 +++---
 src/ProjectTemplates/test/MvcTemplateTest.cs  | 124 ++++++++----------
 .../test/ProjectTemplates.Tests.csproj        |   8 +-
 .../test/RazorClassLibraryTemplateTest.cs     |  36 +++--
 .../test/RazorPagesTemplateTest.cs            |  86 ++++++------
 .../test/WebApiTemplateTest.cs                |  52 ++++----
 .../test/WorkerTemplateTest.cs                |  29 ++--
 .../AssemblyFixtureAttribute.cs               |  17 ---
 ...TestCollectionRunnerWIthAssemblyFixture.cs |  48 -------
 ...itTestAssemblyRunnerWithAssemblyFixture.cs |  82 ------------
 ...estFrameworkExecutorWithAssemblyFixture.cs |  26 ----
 .../XunitTestFrameworkWithAssemblyFixture.cs  |  20 ---
 23 files changed, 221 insertions(+), 469 deletions(-)
 delete mode 100644 src/Shared/E2ETesting/XUnitExtensions/AssemblyFixtureAttribute.cs
 delete mode 100644 src/Shared/E2ETesting/XUnitExtensions/XUnitTestCollectionRunnerWIthAssemblyFixture.cs
 delete mode 100644 src/Shared/E2ETesting/XUnitExtensions/XunitTestAssemblyRunnerWithAssemblyFixture.cs
 delete mode 100644 src/Shared/E2ETesting/XUnitExtensions/XunitTestFrameworkExecutorWithAssemblyFixture.cs
 delete mode 100644 src/Shared/E2ETesting/XUnitExtensions/XunitTestFrameworkWithAssemblyFixture.cs

diff --git a/src/Components/test/E2ETest/Infrastructure/AssemblyInfo.AssemblyFixtures.cs b/src/Components/test/E2ETest/Infrastructure/AssemblyInfo.AssemblyFixtures.cs
index 4f2868269a6b..d7e5921fef32 100644
--- a/src/Components/test/E2ETest/Infrastructure/AssemblyInfo.AssemblyFixtures.cs
+++ b/src/Components/test/E2ETest/Infrastructure/AssemblyInfo.AssemblyFixtures.cs
@@ -2,8 +2,8 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using Microsoft.AspNetCore.E2ETesting;
+using Microsoft.AspNetCore.Testing;
 using Xunit;
 
-[assembly: TestFramework("Microsoft.AspNetCore.E2ETesting.XunitTestFrameworkWithAssemblyFixture", "Microsoft.AspNetCore.Components.E2ETests")]
 [assembly: AssemblyFixture(typeof(SeleniumStandaloneServer))]
 [assembly: AssemblyFixture(typeof(SauceConnectServer))]
diff --git a/src/Components/test/E2ETest/Microsoft.AspNetCore.Components.E2ETests.csproj b/src/Components/test/E2ETest/Microsoft.AspNetCore.Components.E2ETests.csproj
index 266bd5d4fc7d..c727765672fa 100644
--- a/src/Components/test/E2ETest/Microsoft.AspNetCore.Components.E2ETests.csproj
+++ b/src/Components/test/E2ETest/Microsoft.AspNetCore.Components.E2ETests.csproj
@@ -19,8 +19,6 @@
 
     <OutputPath />
 
-    <GenerateLoggingTestingAssemblyAttributes>false</GenerateLoggingTestingAssemblyAttributes>
-
     <!-- This project references the shared framework transitively. Prevent restore errors by setting this flag. -->
     <GenerateErrorForMissingTargetingPacks>false</GenerateErrorForMissingTargetingPacks>
   </PropertyGroup>
diff --git a/src/ProjectTemplates/BlazorTemplates.Tests/AssemblyInfo.AssemblyFixtures.cs b/src/ProjectTemplates/BlazorTemplates.Tests/AssemblyInfo.AssemblyFixtures.cs
index 57f163b513fd..b60a694a12d7 100644
--- a/src/ProjectTemplates/BlazorTemplates.Tests/AssemblyInfo.AssemblyFixtures.cs
+++ b/src/ProjectTemplates/BlazorTemplates.Tests/AssemblyInfo.AssemblyFixtures.cs
@@ -2,11 +2,9 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using Microsoft.AspNetCore.E2ETesting;
+using Microsoft.AspNetCore.Testing;
 using Templates.Test.Helpers;
-using Xunit;
 
-[assembly: TestFramework("Microsoft.AspNetCore.E2ETesting.XunitTestFrameworkWithAssemblyFixture", "BlazorTemplates.Tests")]
-
-[assembly: Microsoft.AspNetCore.E2ETesting.AssemblyFixture(typeof(ProjectFactoryFixture))]
-[assembly: Microsoft.AspNetCore.E2ETesting.AssemblyFixture(typeof(SeleniumStandaloneServer))]
+[assembly: AssemblyFixture(typeof(ProjectFactoryFixture))]
+[assembly: AssemblyFixture(typeof(SeleniumStandaloneServer))]
 
diff --git a/src/ProjectTemplates/BlazorTemplates.Tests/BlazorTemplates.Tests.csproj b/src/ProjectTemplates/BlazorTemplates.Tests/BlazorTemplates.Tests.csproj
index 2da0e11666ef..ba179c77d004 100644
--- a/src/ProjectTemplates/BlazorTemplates.Tests/BlazorTemplates.Tests.csproj
+++ b/src/ProjectTemplates/BlazorTemplates.Tests/BlazorTemplates.Tests.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <!-- Shared testing infrastructure for running E2E tests using selenium -->
   <Import Project="$(SharedSourceRoot)E2ETesting\E2ETesting.props" />
@@ -22,7 +22,6 @@
     <TestTemplateCreationFolder>TestTemplates\</TestTemplateCreationFolder>
     <TestPackageRestorePath>$([MSBuild]::EnsureTrailingSlash('$(RepoRoot)'))obj\template-restore\</TestPackageRestorePath>
     <TestTemplateTestsProps>TemplateTests.props</TestTemplateTestsProps>
-    <GenerateLoggingTestingAssemblyAttributes>false</GenerateLoggingTestingAssemblyAttributes>
     <TestDependsOnAspNetRuntime>true</TestDependsOnAspNetRuntime>
   </PropertyGroup>
 
@@ -43,11 +42,6 @@
     <Reference Include="Microsoft.NET.Sdk.Razor" ReferenceOutputAssembly="false" SkipGetTargetFrameworkProperties="true" />
   </ItemGroup>
 
-  <PropertyGroup>
-    <PreserveExistingLogsInOutput Condition="'$(PreserveExistingLogsInOutput)' == '' AND '$(ContinuousIntegrationBuild)' == 'true'">true</PreserveExistingLogsInOutput>
-    <PreserveExistingLogsInOutput Condition="'$(PreserveExistingLogsInOutput)' == ''">false</PreserveExistingLogsInOutput>
-  </PropertyGroup>
-
   <ItemGroup>
     <AssemblyAttribute Include="System.Reflection.AssemblyMetadataAttribute">
       <_Parameter1>DotNetEfFullPath</_Parameter1>
@@ -65,11 +59,6 @@
       <_Parameter1>ContinuousIntegrationBuild</_Parameter1>
       <_Parameter2>true</_Parameter2>
     </AssemblyAttribute>
-    <AssemblyAttribute Include="Microsoft.AspNetCore.Testing.TestFrameworkFileLoggerAttribute">
-      <_Parameter1>$(PreserveExistingLogsInOutput)</_Parameter1>
-      <_Parameter2>$(TargetFramework)</_Parameter2>
-      <_Parameter3></_Parameter3>
-    </AssemblyAttribute>
   </ItemGroup>
 
   <Target Name="PrepareForTest" BeforeTargets="GetAssemblyAttributes" Condition="$(DesignTimeBuild) != true">
diff --git a/src/ProjectTemplates/Shared/ProjectFactoryFixture.cs b/src/ProjectTemplates/Shared/ProjectFactoryFixture.cs
index d268ce874247..46763a3b96b8 100644
--- a/src/ProjectTemplates/Shared/ProjectFactoryFixture.cs
+++ b/src/ProjectTemplates/Shared/ProjectFactoryFixture.cs
@@ -55,7 +55,7 @@ public async Task<Project> GetOrCreateProject(string projectKey, ITestOutputHelp
         }
 
         private static string GetTemplateFolderBasePath(Assembly assembly) =>
-            (string.IsNullOrEmpty(Environment.GetEnvironmentVariable("HELIX_DIR"))) 
+            (string.IsNullOrEmpty(Environment.GetEnvironmentVariable("HELIX_DIR")))
             ? assembly.GetCustomAttributes<AssemblyMetadataAttribute>()
                 .Single(a => a.Key == "TestTemplateCreationFolder")
                 .Value
diff --git a/src/ProjectTemplates/Shared/TestOutputLogger.cs b/src/ProjectTemplates/Shared/TestOutputLogger.cs
index d239f9638f6c..b01edf2e7bd8 100644
--- a/src/ProjectTemplates/Shared/TestOutputLogger.cs
+++ b/src/ProjectTemplates/Shared/TestOutputLogger.cs
@@ -8,7 +8,7 @@ namespace Templates.Test.Helpers
 {
     internal class TestOutputLogger : ITestOutputHelper
     {
-        private ILogger _logger;
+        private readonly ILogger _logger;
 
         public TestOutputLogger(ILogger logger)
         {
diff --git a/src/ProjectTemplates/test/AssemblyInfo.AssemblyFixtures.cs b/src/ProjectTemplates/test/AssemblyInfo.AssemblyFixtures.cs
index 9e4d5d6b3448..dded12fce8e1 100644
--- a/src/ProjectTemplates/test/AssemblyInfo.AssemblyFixtures.cs
+++ b/src/ProjectTemplates/test/AssemblyInfo.AssemblyFixtures.cs
@@ -4,9 +4,6 @@
 using Microsoft.AspNetCore.E2ETesting;
 using Microsoft.AspNetCore.Testing;
 using Templates.Test.Helpers;
-using Xunit;
 
-[assembly: TestFramework("Microsoft.AspNetCore.E2ETesting.XunitTestFrameworkWithAssemblyFixture", "ProjectTemplates.Tests")]
-
-[assembly: Microsoft.AspNetCore.E2ETesting.AssemblyFixture(typeof(ProjectFactoryFixture))]
-[assembly: Microsoft.AspNetCore.E2ETesting.AssemblyFixture(typeof(SeleniumStandaloneServer))]
+[assembly: AssemblyFixture(typeof(ProjectFactoryFixture))]
+[assembly: AssemblyFixture(typeof(SeleniumStandaloneServer))]
diff --git a/src/ProjectTemplates/test/BaselineTest.cs b/src/ProjectTemplates/test/BaselineTest.cs
index eabacc336d35..f064726e8cd1 100644
--- a/src/ProjectTemplates/test/BaselineTest.cs
+++ b/src/ProjectTemplates/test/BaselineTest.cs
@@ -15,7 +15,7 @@
 
 namespace Templates.Test
 {
-    public class BaselineTest
+    public class BaselineTest : LoggedTest
     {
         private static readonly Regex TemplateNameRegex = new Regex(
             "new (?<template>[a-zA-Z]+)",
@@ -32,10 +32,10 @@ public class BaselineTest
             RegexOptions.Compiled | RegexOptions.ExplicitCapture | RegexOptions.Singleline,
             TimeSpan.FromSeconds(1));
 
-        public BaselineTest(ProjectFactoryFixture projectFactory, ITestOutputHelper output)
+        public BaselineTest(ProjectFactoryFixture projectFactory)
         {
             ProjectFactory = projectFactory;
-            Output = output;
+            Output = new TestOutputLogger(Logger);
         }
 
         public Project Project { get; set; }
diff --git a/src/ProjectTemplates/test/ByteOrderMarkTest.cs b/src/ProjectTemplates/test/ByteOrderMarkTest.cs
index 465d2c411476..ba6cd449ae6f 100644
--- a/src/ProjectTemplates/test/ByteOrderMarkTest.cs
+++ b/src/ProjectTemplates/test/ByteOrderMarkTest.cs
@@ -5,18 +5,20 @@
 using System.IO;
 using System.Linq;
 using System.Text;
+using Microsoft.AspNetCore.Testing;
+using Templates.Test.Helpers;
 using Xunit;
 using Xunit.Abstractions;
 
 namespace Templates.Test
 {
-    public class ByteOrderMarkTest
+    public class ByteOrderMarkTest : LoggedTest
     {
         private readonly ITestOutputHelper _output;
 
-        public ByteOrderMarkTest(ITestOutputHelper output)
+        public ByteOrderMarkTest()
         {
-            _output = output;
+            _output = new TestOutputLogger(Logger);
         }
 
         [Theory]
diff --git a/src/ProjectTemplates/test/EmptyWebTemplateTest.cs b/src/ProjectTemplates/test/EmptyWebTemplateTest.cs
index a448f039a4d9..7f09d5823065 100644
--- a/src/ProjectTemplates/test/EmptyWebTemplateTest.cs
+++ b/src/ProjectTemplates/test/EmptyWebTemplateTest.cs
@@ -9,16 +9,14 @@
 
 namespace Templates.Test
 {
-    public class EmptyWebTemplateTest
+    public class EmptyWebTemplateTest : LoggedTest
     {
-        public EmptyWebTemplateTest(ProjectFactoryFixture projectFactory, ITestOutputHelper output)
+        public EmptyWebTemplateTest(ProjectFactoryFixture projectFactory)
         {
             ProjectFactory = projectFactory;
-            Output = output;
+            Output = new TestOutputLogger(Logger);
         }
 
-        public Project Project { get; set; }
-
         public ProjectFactoryFixture ProjectFactory { get; }
 
         public ITestOutputHelper Output { get; }
@@ -38,10 +36,10 @@ public async Task EmptyWebTemplateFSharp()
 
         private async Task EmtpyTemplateCore(string languageOverride)
         {
-            Project = await ProjectFactory.GetOrCreateProject("empty" + (languageOverride == "F#" ? "fsharp" : "csharp"), Output);
+            var project = await ProjectFactory.GetOrCreateProject("empty" + (languageOverride == "F#" ? "fsharp" : "csharp"), Output);
 
-            var createResult = await Project.RunDotNetNewAsync("web", language: languageOverride);
-            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", Project, createResult));
+            var createResult = await project.RunDotNetNewAsync("web", language: languageOverride);
+            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", project, createResult));
 
             // Avoid the F# compiler. See https://github.com/dotnet/aspnetcore/issues/14022
             if (languageOverride != null)
@@ -49,30 +47,30 @@ private async Task EmtpyTemplateCore(string languageOverride)
                 return;
             }
 
-            var publishResult = await Project.RunDotNetPublishAsync();
-            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", Project, publishResult));
+            var publishResult = await project.RunDotNetPublishAsync();
+            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", project, publishResult));
 
             // Run dotnet build after publish. The reason is that one uses Config = Debug and the other uses Config = Release
             // The output from publish will go into bin/Release/netcoreappX.Y/publish and won't be affected by calling build
             // later, while the opposite is not true.
 
-            var buildResult = await Project.RunDotNetBuildAsync();
-            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", Project, buildResult));
+            var buildResult = await project.RunDotNetBuildAsync();
+            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", project, buildResult));
 
-            using (var aspNetProcess = Project.StartBuiltProjectAsync())
+            using (var aspNetProcess = project.StartBuiltProjectAsync())
             {
                 Assert.False(
                    aspNetProcess.Process.HasExited,
-                   ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", Project, aspNetProcess.Process));
+                   ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", project, aspNetProcess.Process));
 
                 await aspNetProcess.AssertOk("/");
             }
 
-            using (var aspNetProcess = Project.StartPublishedProjectAsync())
+            using (var aspNetProcess = project.StartPublishedProjectAsync())
             {
                 Assert.False(
                     aspNetProcess.Process.HasExited,
-                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run published project", Project, aspNetProcess.Process));
+                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run published project", project, aspNetProcess.Process));
 
                 await aspNetProcess.AssertOk("/");
             }
diff --git a/src/ProjectTemplates/test/GrpcTemplateTest.cs b/src/ProjectTemplates/test/GrpcTemplateTest.cs
index 1029d2a7b1fc..90d5eb5ad306 100644
--- a/src/ProjectTemplates/test/GrpcTemplateTest.cs
+++ b/src/ProjectTemplates/test/GrpcTemplateTest.cs
@@ -2,7 +2,6 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
-using System.Reflection;
 using System.Runtime.InteropServices;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Testing;
@@ -12,16 +11,14 @@
 
 namespace Templates.Test
 {
-    public class GrpcTemplateTest
+    public class GrpcTemplateTest : LoggedTest
     {
-        public GrpcTemplateTest(ProjectFactoryFixture projectFactory, ITestOutputHelper output)
+        public GrpcTemplateTest(ProjectFactoryFixture projectFactory)
         {
             ProjectFactory = projectFactory;
-            Output = output;
+            Output = new TestOutputLogger(Logger);
         }
 
-        public Project Project { get; set; }
-
         public ProjectFactoryFixture ProjectFactory { get; }
         public ITestOutputHelper Output { get; }
 
@@ -29,27 +26,22 @@ public GrpcTemplateTest(ProjectFactoryFixture projectFactory, ITestOutputHelper
         [SkipOnHelix("Not supported queues", Queues = "Windows.7.Amd64;Windows.7.Amd64.Open;Windows.81.Amd64.Open;OSX.1014.Amd64;OSX.1014.Amd64.Open")]
         public async Task GrpcTemplate()
         {
-            // Setup AssemblyTestLog
-            var assemblyLog = AssemblyTestLog.Create(Assembly.GetExecutingAssembly(), baseDirectory: Project.ArtifactsLogDir);
-            using var testLog = assemblyLog.StartTestLog(Output, nameof(GrpcTemplateTest), out var loggerFactory);
-            var logger = loggerFactory.CreateLogger("TestLogger");
-
-            Project = await ProjectFactory.GetOrCreateProject("grpc", new TestOutputLogger(logger));
+            var project = await ProjectFactory.GetOrCreateProject("grpc", Output);
 
-            var createResult = await Project.RunDotNetNewAsync("grpc");
-            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", Project, createResult));
+            var createResult = await project.RunDotNetNewAsync("grpc");
+            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", project, createResult));
 
-            var publishResult = await Project.RunDotNetPublishAsync();
-            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", Project, publishResult));
+            var publishResult = await project.RunDotNetPublishAsync();
+            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", project, publishResult));
 
-            var buildResult = await Project.RunDotNetBuildAsync();
-            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", Project, buildResult));
+            var buildResult = await project.RunDotNetBuildAsync();
+            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", project, buildResult));
 
             var isOsx = RuntimeInformation.IsOSPlatform(OSPlatform.OSX);
             var isWindowsOld = RuntimeInformation.IsOSPlatform(OSPlatform.Windows) && Environment.OSVersion.Version < new Version(6, 2);
             var unsupported = isOsx || isWindowsOld;
 
-            using (var serverProcess = Project.StartBuiltProjectAsync(hasListeningUri: !unsupported, logger: logger))
+            using (var serverProcess = project.StartBuiltProjectAsync(hasListeningUri: !unsupported, logger: Logger))
             {
                 // These templates are HTTPS + HTTP/2 only which is not supported on Mac due to missing ALPN support.
                 // https://github.com/dotnet/aspnetcore/issues/11061
@@ -58,24 +50,24 @@ public async Task GrpcTemplate()
                     serverProcess.Process.WaitForExit(assertSuccess: false);
                     Assert.True(serverProcess.Process.HasExited, "built");
                     Assert.Contains("System.NotSupportedException: HTTP/2 over TLS is not supported on macOS due to missing ALPN support.",
-                        ErrorMessages.GetFailedProcessMessageOrEmpty("Run built service", Project, serverProcess.Process));
+                        ErrorMessages.GetFailedProcessMessageOrEmpty("Run built service", project, serverProcess.Process));
                 }
                 else if (isWindowsOld)
                 {
                     serverProcess.Process.WaitForExit(assertSuccess: false);
                     Assert.True(serverProcess.Process.HasExited, "built");
                     Assert.Contains("System.NotSupportedException: HTTP/2 over TLS is not supported on Windows 7 due to missing ALPN support.",
-                        ErrorMessages.GetFailedProcessMessageOrEmpty("Run built service", Project, serverProcess.Process));
+                        ErrorMessages.GetFailedProcessMessageOrEmpty("Run built service", project, serverProcess.Process));
                 }
                 else
                 {
                     Assert.False(
                         serverProcess.Process.HasExited,
-                        ErrorMessages.GetFailedProcessMessageOrEmpty("Run built service", Project, serverProcess.Process));
+                        ErrorMessages.GetFailedProcessMessageOrEmpty("Run built service", project, serverProcess.Process));
                 }
             }
 
-            using (var aspNetProcess = Project.StartPublishedProjectAsync(hasListeningUri: !unsupported))
+            using (var aspNetProcess = project.StartPublishedProjectAsync(hasListeningUri: !unsupported))
             {
                 // These templates are HTTPS + HTTP/2 only which is not supported on Mac due to missing ALPN support.
                 // https://github.com/dotnet/aspnetcore/issues/11061
@@ -84,20 +76,20 @@ public async Task GrpcTemplate()
                     aspNetProcess.Process.WaitForExit(assertSuccess: false);
                     Assert.True(aspNetProcess.Process.HasExited, "published");
                     Assert.Contains("System.NotSupportedException: HTTP/2 over TLS is not supported on macOS due to missing ALPN support.",
-                        ErrorMessages.GetFailedProcessMessageOrEmpty("Run published service", Project, aspNetProcess.Process));
+                        ErrorMessages.GetFailedProcessMessageOrEmpty("Run published service", project, aspNetProcess.Process));
                 }
                 else if (isWindowsOld)
                 {
                     aspNetProcess.Process.WaitForExit(assertSuccess: false);
                     Assert.True(aspNetProcess.Process.HasExited, "published");
                     Assert.Contains("System.NotSupportedException: HTTP/2 over TLS is not supported on Windows 7 due to missing ALPN support.",
-                        ErrorMessages.GetFailedProcessMessageOrEmpty("Run published service", Project, aspNetProcess.Process));
+                        ErrorMessages.GetFailedProcessMessageOrEmpty("Run published service", project, aspNetProcess.Process));
                 }
                 else
                 {
                     Assert.False(
                         aspNetProcess.Process.HasExited,
-                        ErrorMessages.GetFailedProcessMessageOrEmpty("Run published service", Project, aspNetProcess.Process));
+                        ErrorMessages.GetFailedProcessMessageOrEmpty("Run published service", project, aspNetProcess.Process));
                 }
             }
         }
diff --git a/src/ProjectTemplates/test/IdentityUIPackageTest.cs b/src/ProjectTemplates/test/IdentityUIPackageTest.cs
index 6d907b954bcc..b2bb9f384e97 100644
--- a/src/ProjectTemplates/test/IdentityUIPackageTest.cs
+++ b/src/ProjectTemplates/test/IdentityUIPackageTest.cs
@@ -12,16 +12,14 @@
 
 namespace Templates.Test
 {
-    public class IdentityUIPackageTest
+    public class IdentityUIPackageTest : LoggedTest
     {
-        public IdentityUIPackageTest(ProjectFactoryFixture projectFactory, ITestOutputHelper output)
+        public IdentityUIPackageTest(ProjectFactoryFixture projectFactory)
         {
             ProjectFactory = projectFactory;
-            Output = output;
+            Output = new TestOutputLogger(Logger);
         }
 
-        public Project Project { get; set; }
-
         public ProjectFactoryFixture ProjectFactory { get; set; }
 
         public ITestOutputHelper Output { get; }
@@ -71,35 +69,35 @@ public IdentityUIPackageTest(ProjectFactoryFixture projectFactory, ITestOutputHe
         public async Task IdentityUIPackage_WorksWithDifferentOptions()
         {
             var packageOptions = new Dictionary<string, string>();
-            Project = await ProjectFactory.GetOrCreateProject("identityuipackage" + string.Concat(packageOptions.Values), Output);
+            var project = await ProjectFactory.GetOrCreateProject("identityuipackage" + string.Concat(packageOptions.Values), Output);
             var useLocalDB = false;
 
-            var createResult = await Project.RunDotNetNewAsync("razor", auth: "Individual", useLocalDB: useLocalDB, environmentVariables: packageOptions);
-            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", Project, createResult));
+            var createResult = await project.RunDotNetNewAsync("razor", auth: "Individual", useLocalDB: useLocalDB, environmentVariables: packageOptions);
+            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", project, createResult));
 
-            var projectFileContents = ReadFile(Project.TemplateOutputDir, $"{Project.ProjectName}.csproj");
+            var projectFileContents = ReadFile(project.TemplateOutputDir, $"{project.ProjectName}.csproj");
             Assert.Contains(".db", projectFileContents);
 
-            var publishResult = await Project.RunDotNetPublishAsync(packageOptions: packageOptions);
-            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", Project, publishResult));
+            var publishResult = await project.RunDotNetPublishAsync(packageOptions: packageOptions);
+            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", project, publishResult));
 
             // Run dotnet build after publish. The reason is that one uses Config = Debug and the other uses Config = Release
             // The output from publish will go into bin/Release/netcoreappX.Y/publish and won't be affected by calling build
             // later, while the opposite is not true.
 
-            var buildResult = await Project.RunDotNetBuildAsync(packageOptions: packageOptions);
-            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", Project, buildResult));
+            var buildResult = await project.RunDotNetBuildAsync(packageOptions: packageOptions);
+            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", project, buildResult));
 
-            var migrationsResult = await Project.RunDotNetEfCreateMigrationAsync("razorpages");
-            Assert.True(0 == migrationsResult.ExitCode, ErrorMessages.GetFailedProcessMessage("run EF migrations", Project, migrationsResult));
-            Project.AssertEmptyMigration("razorpages");
+            var migrationsResult = await project.RunDotNetEfCreateMigrationAsync("razorpages");
+            Assert.True(0 == migrationsResult.ExitCode, ErrorMessages.GetFailedProcessMessage("run EF migrations", project, migrationsResult));
+            project.AssertEmptyMigration("razorpages");
 
             var versionValidator = "Bootstrap v4.3.1";
-            using (var aspNetProcess = Project.StartBuiltProjectAsync())
+            using (var aspNetProcess = project.StartBuiltProjectAsync())
             {
                 Assert.False(
                     aspNetProcess.Process.HasExited,
-                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", Project, aspNetProcess.Process));
+                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", project, aspNetProcess.Process));
 
                 var response = await aspNetProcess.SendRequest("/Identity/lib/bootstrap/dist/css/bootstrap.css");
                 Assert.Equal(HttpStatusCode.OK, response.StatusCode);
@@ -107,11 +105,11 @@ public async Task IdentityUIPackage_WorksWithDifferentOptions()
                 await ValidatePublishedFiles(aspNetProcess, Bootstrap4ContentFiles);
             }
 
-            using (var aspNetProcess = Project.StartPublishedProjectAsync())
+            using (var aspNetProcess = project.StartPublishedProjectAsync())
             {
                 Assert.False(
                     aspNetProcess.Process.HasExited,
-                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", Project, aspNetProcess.Process));
+                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", project, aspNetProcess.Process));
 
                 var response = await aspNetProcess.SendRequest("/Identity/lib/bootstrap/dist/css/bootstrap.css");
                 Assert.Equal(HttpStatusCode.OK, response.StatusCode);
diff --git a/src/ProjectTemplates/test/MvcTemplateTest.cs b/src/ProjectTemplates/test/MvcTemplateTest.cs
index e909a547efce..8e7e1431e3e0 100644
--- a/src/ProjectTemplates/test/MvcTemplateTest.cs
+++ b/src/ProjectTemplates/test/MvcTemplateTest.cs
@@ -5,61 +5,41 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
-using System.Reflection;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Testing;
-using Microsoft.Extensions.Logging;
 using Templates.Test.Helpers;
 using Xunit;
 using Xunit.Abstractions;
 
 namespace Templates.Test
 {
-    public class MvcTemplateTest
+    public class MvcTemplateTest : LoggedTest
     {
-        public MvcTemplateTest(ProjectFactoryFixture projectFactory, ITestOutputHelper output)
+        public MvcTemplateTest(ProjectFactoryFixture projectFactory)
         {
             ProjectFactory = projectFactory;
-            Output = output;
+            Output = new TestOutputLogger(Logger);
         }
 
-        public Project Project { get; set; }
-
         public ProjectFactoryFixture ProjectFactory { get; }
         public ITestOutputHelper Output { get; }
 
         [Fact]
-        public async Task MvcTemplate_NoAuthFSharp()
-        {
-            // Setup AssemblyTestLog
-            var assemblyLog = AssemblyTestLog.Create(Assembly.GetExecutingAssembly(), baseDirectory: Project.ArtifactsLogDir);
-            using var testLog = assemblyLog.StartTestLog(Output, nameof(MvcTemplateTest), out var loggerFactory);
-            var logger = loggerFactory.CreateLogger("TestLogger");
-
-            await MvcTemplateCore(languageOverride: "F#", logger);
-        }
+        public async Task MvcTemplate_NoAuthFSharp() => await MvcTemplateCore(languageOverride: "F#");
 
         [ConditionalFact]
         [SkipOnHelix("cert failure", Queues = "OSX.1014.Amd64;OSX.1014.Amd64.Open")]
-        public async Task MvcTemplate_NoAuthCSharp()
-        {
-            // Setup AssemblyTestLog
-            var assemblyLog = AssemblyTestLog.Create(Assembly.GetExecutingAssembly(), baseDirectory: Project.ArtifactsLogDir);
-            using var testLog = assemblyLog.StartTestLog(Output, nameof(MvcTemplateTest), out var loggerFactory);
-            var logger = loggerFactory.CreateLogger("TestLogger");
-
-            await MvcTemplateCore(languageOverride: null, logger);
-        }
+        public async Task MvcTemplate_NoAuthCSharp() => await MvcTemplateCore(languageOverride: null);
 
-        private async Task MvcTemplateCore(string languageOverride, ILogger logger)
+        private async Task MvcTemplateCore(string languageOverride)
         {
-            Project = await ProjectFactory.GetOrCreateProject("mvcnoauth" + (languageOverride == "F#" ? "fsharp" : "csharp"), new TestOutputLogger(logger));
+            var project = await ProjectFactory.GetOrCreateProject("mvcnoauth" + (languageOverride == "F#" ? "fsharp" : "csharp"), Output);
 
-            var createResult = await Project.RunDotNetNewAsync("mvc", language: languageOverride);
-            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", Project, createResult));
+            var createResult = await project.RunDotNetNewAsync("mvc", language: languageOverride);
+            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", project, createResult));
 
             var projectExtension = languageOverride == "F#" ? "fsproj" : "csproj";
-            var projectFileContents = Project.ReadFile($"{Project.ProjectName}.{projectExtension}");
+            var projectFileContents = project.ReadFile($"{project.ProjectName}.{projectExtension}");
             Assert.DoesNotContain(".db", projectFileContents);
             Assert.DoesNotContain("Microsoft.EntityFrameworkCore.Tools", projectFileContents);
             Assert.DoesNotContain("Microsoft.VisualStudio.Web.CodeGeneration.Design", projectFileContents);
@@ -72,15 +52,15 @@ private async Task MvcTemplateCore(string languageOverride, ILogger logger)
                 return;
             }
 
-            var publishResult = await Project.RunDotNetPublishAsync();
-            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", Project, publishResult));
+            var publishResult = await project.RunDotNetPublishAsync();
+            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", project, publishResult));
 
             // Run dotnet build after publish. The reason is that one uses Config = Debug and the other uses Config = Release
             // The output from publish will go into bin/Release/netcoreappX.Y/publish and won't be affected by calling build
             // later, while the opposite is not true.
 
-            var buildResult = await Project.RunDotNetBuildAsync();
-            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", Project, buildResult));
+            var buildResult = await project.RunDotNetBuildAsync();
+            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", project, buildResult));
 
             IEnumerable<string> menuLinks = new List<string> {
                 PageUrls.HomeUrl,
@@ -104,20 +84,20 @@ private async Task MvcTemplateCore(string languageOverride, ILogger logger)
                 }
             };
 
-            using (var aspNetProcess = Project.StartBuiltProjectAsync())
+            using (var aspNetProcess = project.StartBuiltProjectAsync())
             {
                 Assert.False(
                     aspNetProcess.Process.HasExited,
-                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", Project, aspNetProcess.Process));
+                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", project, aspNetProcess.Process));
 
                 await aspNetProcess.AssertPagesOk(pages);
             }
 
-            using (var aspNetProcess = Project.StartPublishedProjectAsync())
+            using (var aspNetProcess = project.StartPublishedProjectAsync())
             {
                 Assert.False(
                     aspNetProcess.Process.HasExited,
-                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run published project", Project, aspNetProcess.Process));
+                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run published project", project, aspNetProcess.Process));
 
                 await aspNetProcess.AssertPagesOk(pages);
             }
@@ -129,30 +109,30 @@ private async Task MvcTemplateCore(string languageOverride, ILogger logger)
         [SkipOnHelix("cert failure", Queues = "OSX.1014.Amd64;OSX.1014.Amd64.Open")]
         public async Task MvcTemplate_IndividualAuth(bool useLocalDB)
         {
-            Project = await ProjectFactory.GetOrCreateProject("mvcindividual" + (useLocalDB ? "uld" : ""), Output);
+            var project = await ProjectFactory.GetOrCreateProject("mvcindividual" + (useLocalDB ? "uld" : ""), Output);
 
-            var createResult = await Project.RunDotNetNewAsync("mvc", auth: "Individual", useLocalDB: useLocalDB);
-            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", Project, createResult));
+            var createResult = await project.RunDotNetNewAsync("mvc", auth: "Individual", useLocalDB: useLocalDB);
+            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", project, createResult));
 
-            var projectFileContents = Project.ReadFile($"{Project.ProjectName}.csproj");
+            var projectFileContents = project.ReadFile($"{project.ProjectName}.csproj");
             if (!useLocalDB)
             {
                 Assert.Contains(".db", projectFileContents);
             }
 
-            var publishResult = await Project.RunDotNetPublishAsync();
-            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", Project, publishResult));
+            var publishResult = await project.RunDotNetPublishAsync();
+            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", project, publishResult));
 
             // Run dotnet build after publish. The reason is that one uses Config = Debug and the other uses Config = Release
             // The output from publish will go into bin/Release/netcoreappX.Y/publish and won't be affected by calling build
             // later, while the opposite is not true.
 
-            var buildResult = await Project.RunDotNetBuildAsync();
-            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", Project, buildResult));
+            var buildResult = await project.RunDotNetBuildAsync();
+            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", project, buildResult));
 
-            var migrationsResult = await Project.RunDotNetEfCreateMigrationAsync("mvc");
-            Assert.True(0 == migrationsResult.ExitCode, ErrorMessages.GetFailedProcessMessage("run EF migrations", Project, migrationsResult));
-            Project.AssertEmptyMigration("mvc");
+            var migrationsResult = await project.RunDotNetEfCreateMigrationAsync("mvc");
+            Assert.True(0 == migrationsResult.ExitCode, ErrorMessages.GetFailedProcessMessage("run EF migrations", project, migrationsResult));
+            project.AssertEmptyMigration("mvc");
 
             var pages = new List<Page> {
                 new Page
@@ -222,20 +202,20 @@ public async Task MvcTemplate_IndividualAuth(bool useLocalDB)
                 }
             };
 
-            using (var aspNetProcess = Project.StartBuiltProjectAsync())
+            using (var aspNetProcess = project.StartBuiltProjectAsync())
             {
                 Assert.False(
                     aspNetProcess.Process.HasExited,
-                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", Project, aspNetProcess.Process));
+                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", project, aspNetProcess.Process));
 
                 await aspNetProcess.AssertPagesOk(pages);
             }
 
-            using (var aspNetProcess = Project.StartPublishedProjectAsync())
+            using (var aspNetProcess = project.StartPublishedProjectAsync())
             {
                 Assert.False(
                     aspNetProcess.Process.HasExited,
-                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run published project", Project, aspNetProcess.Process));
+                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run published project", project, aspNetProcess.Process));
 
                 await aspNetProcess.AssertPagesOk(pages);
             }
@@ -261,14 +241,14 @@ public async Task MvcTemplate_SingleFileExe()
                 return;
             }
 
-            Project = await ProjectFactory.GetOrCreateProject("mvcsinglefileexe", Output);
-            Project.RuntimeIdentifier = runtimeIdentifer;
+            var project = await ProjectFactory.GetOrCreateProject("mvcsinglefileexe", Output);
+            project.RuntimeIdentifier = runtimeIdentifer;
 
-            var createResult = await Project.RunDotNetNewAsync("mvc", auth: "Individual", useLocalDB: true);
-            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", Project, createResult));
+            var createResult = await project.RunDotNetNewAsync("mvc", auth: "Individual", useLocalDB: true);
+            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", project, createResult));
 
-            var publishResult = await Project.RunDotNetPublishAsync(additionalArgs: $"/p:PublishSingleFile=true -r {runtimeIdentifer}", noRestore: false);
-            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", Project, publishResult));
+            var publishResult = await project.RunDotNetPublishAsync(additionalArgs: $"/p:PublishSingleFile=true -r {runtimeIdentifer}", noRestore: false);
+            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", project, publishResult));
 
             var pages = new[]
             {
@@ -304,10 +284,10 @@ public async Task MvcTemplate_SingleFileExe()
                 },
             };
 
-            using var aspNetProcess = Project.StartPublishedProjectAsync(usePublishedAppHost: true);
+            using var aspNetProcess = project.StartPublishedProjectAsync(usePublishedAppHost: true);
             Assert.False(
                 aspNetProcess.Process.HasExited,
-                ErrorMessages.GetFailedProcessMessageOrEmpty("Run published project", Project, aspNetProcess.Process));
+                ErrorMessages.GetFailedProcessMessageOrEmpty("Run published project", project, aspNetProcess.Process));
 
             await aspNetProcess.AssertPagesOk(pages);
         }
@@ -316,9 +296,9 @@ public async Task MvcTemplate_SingleFileExe()
         [QuarantinedTest("https://github.com/dotnet/aspnetcore/issues/23993")]
         public async Task MvcTemplate_RazorRuntimeCompilation_BuildsAndPublishes()
         {
-            await MvcTemplateBuildsAndPublishes(auth: null, args: new[] { "--razor-runtime-compilation" });
+            var project = await MvcTemplateBuildsAndPublishes(auth: null, args: new[] { "--razor-runtime-compilation" });
 
-            Assert.False(Directory.Exists(Path.Combine(Project.TemplatePublishDir, "refs")), "The refs directory should not be published.");
+            Assert.False(Directory.Exists(Path.Combine(project.TemplatePublishDir, "refs")), "The refs directory should not be published.");
         }
 
         [Theory]
@@ -329,20 +309,22 @@ public async Task MvcTemplate_RazorRuntimeCompilation_BuildsAndPublishes()
         [InlineData("SingleOrg", new string[] { "--calls-graph" })]
         public Task MvcTemplate_IdentityWeb_BuildsAndPublishes(string auth, string[] args) => MvcTemplateBuildsAndPublishes(auth: auth, args: args);
 
-        private async Task MvcTemplateBuildsAndPublishes(string auth, string[] args)
+        private async Task<Project> MvcTemplateBuildsAndPublishes(string auth, string[] args)
         {
-            Project = await ProjectFactory.GetOrCreateProject("mvc" + Guid.NewGuid().ToString().Substring(0, 10).ToLower(), Output);
+            var project = await ProjectFactory.GetOrCreateProject("mvc" + Guid.NewGuid().ToString().Substring(0, 10).ToLower(), Output);
 
-            var createResult = await Project.RunDotNetNewAsync("mvc", auth: auth, args: args);
-            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", Project, createResult));
+            var createResult = await project.RunDotNetNewAsync("mvc", auth: auth, args: args);
+            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", project, createResult));
 
             // Verify building in debug works
-            var buildResult = await Project.RunDotNetBuildAsync();
-            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", Project, buildResult));
+            var buildResult = await project.RunDotNetBuildAsync();
+            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", project, buildResult));
 
             // Publish builds in "release" configuration. Running publish should ensure we can compile in release and that we can publish without issues.
-            buildResult = await Project.RunDotNetPublishAsync();
-            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", Project, buildResult));
+            buildResult = await project.RunDotNetPublishAsync();
+            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", project, buildResult));
+
+            return project;
         }
     }
 }
diff --git a/src/ProjectTemplates/test/ProjectTemplates.Tests.csproj b/src/ProjectTemplates/test/ProjectTemplates.Tests.csproj
index d0142cdf6eae..f5582d8649db 100644
--- a/src/ProjectTemplates/test/ProjectTemplates.Tests.csproj
+++ b/src/ProjectTemplates/test/ProjectTemplates.Tests.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <!-- Shared testing infrastructure for running E2E tests using selenium -->
   <Import Project="$(SharedSourceRoot)E2ETesting\E2ETesting.props" />
@@ -21,7 +21,6 @@
     <TestTemplateCreationFolder>TestTemplates\</TestTemplateCreationFolder>
     <TestPackageRestorePath>$([MSBuild]::EnsureTrailingSlash('$(RepoRoot)'))obj\template-restore\</TestPackageRestorePath>
     <TestTemplateTestsProps>TemplateTests.props</TestTemplateTestsProps>
-    <GenerateLoggingTestingAssemblyAttributes>false</GenerateLoggingTestingAssemblyAttributes>
     <TestDependsOnAspNetRuntime>true</TestDependsOnAspNetRuntime>
   </PropertyGroup>
 
@@ -79,11 +78,6 @@
       <_Parameter1>ContinuousIntegrationBuild</_Parameter1>
       <_Parameter2>true</_Parameter2>
     </AssemblyAttribute>
-    <AssemblyAttribute Include="Microsoft.AspNetCore.Testing.TestFrameworkFileLoggerAttribute">
-      <_Parameter1>$(PreserveExistingLogsInOutput)</_Parameter1>
-      <_Parameter2>$(TargetFramework)</_Parameter2>
-      <_Parameter3></_Parameter3>
-    </AssemblyAttribute>
   </ItemGroup>
 
   <Target Name="PrepareForTest" BeforeTargets="GetAssemblyAttributes" Condition="$(DesignTimeBuild) != true">
diff --git a/src/ProjectTemplates/test/RazorClassLibraryTemplateTest.cs b/src/ProjectTemplates/test/RazorClassLibraryTemplateTest.cs
index 59e36da6fd16..11110e7f4f11 100644
--- a/src/ProjectTemplates/test/RazorClassLibraryTemplateTest.cs
+++ b/src/ProjectTemplates/test/RazorClassLibraryTemplateTest.cs
@@ -9,55 +9,53 @@
 
 namespace Templates.Test
 {
-    public class RazorClassLibraryTemplateTest
+    public class RazorClassLibraryTemplateTest : LoggedTest
     {
-        public RazorClassLibraryTemplateTest(ProjectFactoryFixture projectFactory, ITestOutputHelper output)
+        public RazorClassLibraryTemplateTest(ProjectFactoryFixture projectFactory)
         {
             ProjectFactory = projectFactory;
-            Output = output;
+            Output = new TestOutputLogger(Logger);
         }
 
-        public Project Project { get; set; }
-
         public ProjectFactoryFixture ProjectFactory { get; }
         public ITestOutputHelper Output { get; }
 
         [Fact]
         public async Task RazorClassLibraryTemplate_WithViews_Async()
         {
-            Project = await ProjectFactory.GetOrCreateProject("razorclasslibwithviews", Output);
+            var project = await ProjectFactory.GetOrCreateProject("razorclasslibwithviews", Output);
 
-            var createResult = await Project.RunDotNetNewAsync("razorclasslib", args: new[] { "--support-pages-and-views", "true" });
-            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", Project, createResult));
+            var createResult = await project.RunDotNetNewAsync("razorclasslib", args: new[] { "--support-pages-and-views", "true" });
+            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", project, createResult));
 
-            var publishResult = await Project.RunDotNetPublishAsync();
-            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", Project, publishResult));
+            var publishResult = await project.RunDotNetPublishAsync();
+            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", project, publishResult));
 
             // Run dotnet build after publish. The reason is that one uses Config = Debug and the other uses Config = Release
             // The output from publish will go into bin/Release/netcoreappX.Y/publish and won't be affected by calling build
             // later, while the opposite is not true.
 
-            var buildResult = await Project.RunDotNetBuildAsync();
-            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", Project, buildResult));
+            var buildResult = await project.RunDotNetBuildAsync();
+            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", project, buildResult));
         }
 
         [Fact]
         public async Task RazorClassLibraryTemplateAsync()
         {
-            Project = await ProjectFactory.GetOrCreateProject("razorclasslib", Output);
+            var project = await ProjectFactory.GetOrCreateProject("razorclasslib", Output);
 
-            var createResult = await Project.RunDotNetNewAsync("razorclasslib");
-            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", Project, createResult));
+            var createResult = await project.RunDotNetNewAsync("razorclasslib");
+            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", project, createResult));
 
-            var publishResult = await Project.RunDotNetPublishAsync();
-            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", Project, publishResult));
+            var publishResult = await project.RunDotNetPublishAsync();
+            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", project, publishResult));
 
             // Run dotnet build after publish. The reason is that one uses Config = Debug and the other uses Config = Release
             // The output from publish will go into bin/Release/netcoreappX.Y/publish and won't be affected by calling build
             // later, while the opposite is not true.
 
-            var buildResult = await Project.RunDotNetBuildAsync();
-            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", Project, buildResult));
+            var buildResult = await project.RunDotNetBuildAsync();
+            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", project, buildResult));
         }
     }
 }
diff --git a/src/ProjectTemplates/test/RazorPagesTemplateTest.cs b/src/ProjectTemplates/test/RazorPagesTemplateTest.cs
index 65e424b019ca..260a60ec4380 100644
--- a/src/ProjectTemplates/test/RazorPagesTemplateTest.cs
+++ b/src/ProjectTemplates/test/RazorPagesTemplateTest.cs
@@ -12,16 +12,14 @@
 
 namespace Templates.Test
 {
-    public class RazorPagesTemplateTest
+    public class RazorPagesTemplateTest : LoggedTest
     {
-        public RazorPagesTemplateTest(ProjectFactoryFixture projectFactory, ITestOutputHelper output)
+        public RazorPagesTemplateTest(ProjectFactoryFixture projectFactory)
         {
             ProjectFactory = projectFactory;
-            Output = output;
+            Output = new TestOutputLogger(Logger);
         }
 
-        public Project Project { get; set; }
-
         public ProjectFactoryFixture ProjectFactory { get; set; }
 
         public ITestOutputHelper Output { get; }
@@ -30,27 +28,27 @@ public RazorPagesTemplateTest(ProjectFactoryFixture projectFactory, ITestOutputH
         [SkipOnHelix("Cert failures", Queues = "OSX.1014.Amd64;OSX.1014.Amd64.Open")]
         public async Task RazorPagesTemplate_NoAuth()
         {
-            Project = await ProjectFactory.GetOrCreateProject("razorpagesnoauth", Output);
+            var project = await ProjectFactory.GetOrCreateProject("razorpagesnoauth", Output);
 
-            var createResult = await Project.RunDotNetNewAsync("razor");
-            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("razor", Project, createResult));
+            var createResult = await project.RunDotNetNewAsync("razor");
+            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("razor", project, createResult));
 
-            var projectFileContents = ReadFile(Project.TemplateOutputDir, $"{Project.ProjectName}.csproj");
+            var projectFileContents = ReadFile(project.TemplateOutputDir, $"{project.ProjectName}.csproj");
             Assert.DoesNotContain(".db", projectFileContents);
             Assert.DoesNotContain("Microsoft.EntityFrameworkCore.Tools", projectFileContents);
             Assert.DoesNotContain("Microsoft.VisualStudio.Web.CodeGeneration.Design", projectFileContents);
             Assert.DoesNotContain("Microsoft.EntityFrameworkCore.Tools.DotNet", projectFileContents);
             Assert.DoesNotContain("Microsoft.Extensions.SecretManager.Tools", projectFileContents);
 
-            var publishResult = await Project.RunDotNetPublishAsync();
-            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", Project, createResult));
+            var publishResult = await project.RunDotNetPublishAsync();
+            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", project, createResult));
 
             // Run dotnet build after publish. The reason is that one uses Config = Debug and the other uses Config = Release
             // The output from publish will go into bin/Release/netcoreappX.Y/publish and won't be affected by calling build
             // later, while the opposite is not true.
 
-            var buildResult = await Project.RunDotNetBuildAsync();
-            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", Project, createResult));
+            var buildResult = await project.RunDotNetBuildAsync();
+            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", project, createResult));
 
             var pages = new List<Page>
             {
@@ -76,20 +74,20 @@ public async Task RazorPagesTemplate_NoAuth()
                 }
             };
 
-            using (var aspNetProcess = Project.StartBuiltProjectAsync())
+            using (var aspNetProcess = project.StartBuiltProjectAsync())
             {
                 Assert.False(
                     aspNetProcess.Process.HasExited,
-                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", Project, aspNetProcess.Process));
+                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", project, aspNetProcess.Process));
 
                 await aspNetProcess.AssertPagesOk(pages);
             }
 
-            using (var aspNetProcess = Project.StartPublishedProjectAsync())
+            using (var aspNetProcess = project.StartPublishedProjectAsync())
             {
                 Assert.False(
                     aspNetProcess.Process.HasExited,
-                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run published project", Project, aspNetProcess.Process));
+                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run published project", project, aspNetProcess.Process));
 
                 await aspNetProcess.AssertPagesOk(pages);
             }
@@ -102,30 +100,30 @@ public async Task RazorPagesTemplate_NoAuth()
         [QuarantinedTest("https://github.com/dotnet/aspnetcore/issues/19716")]
         public async Task RazorPagesTemplate_IndividualAuth(bool useLocalDB)
         {
-            Project = await ProjectFactory.GetOrCreateProject("razorpagesindividual" + (useLocalDB ? "uld" : ""), Output);
+            var project = await ProjectFactory.GetOrCreateProject("razorpagesindividual" + (useLocalDB ? "uld" : ""), Output);
 
-            var createResult = await Project.RunDotNetNewAsync("razor", auth: "Individual", useLocalDB: useLocalDB);
-            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", Project, createResult));
+            var createResult = await project.RunDotNetNewAsync("razor", auth: "Individual", useLocalDB: useLocalDB);
+            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", project, createResult));
 
-            var projectFileContents = ReadFile(Project.TemplateOutputDir, $"{Project.ProjectName}.csproj");
+            var projectFileContents = ReadFile(project.TemplateOutputDir, $"{project.ProjectName}.csproj");
             if (!useLocalDB)
             {
                 Assert.Contains(".db", projectFileContents);
             }
 
-            var publishResult = await Project.RunDotNetPublishAsync();
-            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", Project, publishResult));
+            var publishResult = await project.RunDotNetPublishAsync();
+            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", project, publishResult));
 
             // Run dotnet build after publish. The reason is that one uses Config = Debug and the other uses Config = Release
             // The output from publish will go into bin/Release/netcoreappX.Y/publish and won't be affected by calling build
             // later, while the opposite is not true.
 
-            var buildResult = await Project.RunDotNetBuildAsync();
-            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", Project, buildResult));
+            var buildResult = await project.RunDotNetBuildAsync();
+            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", project, buildResult));
 
-            var migrationsResult = await Project.RunDotNetEfCreateMigrationAsync("razorpages");
-            Assert.True(0 == migrationsResult.ExitCode, ErrorMessages.GetFailedProcessMessage("run EF migrations", Project, migrationsResult));
-            Project.AssertEmptyMigration("razorpages");
+            var migrationsResult = await project.RunDotNetEfCreateMigrationAsync("razorpages");
+            Assert.True(0 == migrationsResult.ExitCode, ErrorMessages.GetFailedProcessMessage("run EF migrations", project, migrationsResult));
+            project.AssertEmptyMigration("razorpages");
 
             var pages = new List<Page> {
                 new Page
@@ -195,20 +193,20 @@ public async Task RazorPagesTemplate_IndividualAuth(bool useLocalDB)
                 }
             };
 
-            using (var aspNetProcess = Project.StartBuiltProjectAsync())
+            using (var aspNetProcess = project.StartBuiltProjectAsync())
             {
                 Assert.False(
                     aspNetProcess.Process.HasExited,
-                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", Project, aspNetProcess.Process));
+                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", project, aspNetProcess.Process));
 
                 await aspNetProcess.AssertPagesOk(pages);
             }
 
-            using (var aspNetProcess = Project.StartPublishedProjectAsync())
+            using (var aspNetProcess = project.StartPublishedProjectAsync())
             {
                 Assert.False(
                     aspNetProcess.Process.HasExited,
-                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", Project, aspNetProcess.Process));
+                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", project, aspNetProcess.Process));
 
                 await aspNetProcess.AssertPagesOk(pages);
             }
@@ -217,12 +215,12 @@ public async Task RazorPagesTemplate_IndividualAuth(bool useLocalDB)
         [Fact]
         public async Task RazorPagesTemplate_RazorRuntimeCompilation_BuildsAndPublishes()
         {
-            await BuildAndPublishRazorPagesTemplate(auth: null, new[] { "--razor-runtime-compilation" });
+            var project = await BuildAndPublishRazorPagesTemplate(auth: null, new[] { "--razor-runtime-compilation" });
 
-            Assert.False(Directory.Exists(Path.Combine(Project.TemplatePublishDir, "refs")), "The refs directory should not be published.");
+            Assert.False(Directory.Exists(Path.Combine(project.TemplatePublishDir, "refs")), "The refs directory should not be published.");
 
             // Verify ref assemblies isn't published
-            var refsDirectory = Path.Combine(Project.TemplatePublishDir, "refs");
+            var refsDirectory = Path.Combine(project.TemplatePublishDir, "refs");
             Assert.False(Directory.Exists(refsDirectory), $"{refsDirectory} should not be in the publish output.");
         }
 
@@ -234,20 +232,22 @@ public async Task RazorPagesTemplate_RazorRuntimeCompilation_BuildsAndPublishes(
         [InlineData("SingleOrg", new string[] { "--calls-graph" })]
         public Task RazorPagesTemplate_IdentityWeb_BuildsAndPublishes(string auth, string[] args) => BuildAndPublishRazorPagesTemplate(auth: auth, args: args);
 
-        private async Task BuildAndPublishRazorPagesTemplate(string auth, string[] args)
+        private async Task<Project> BuildAndPublishRazorPagesTemplate(string auth, string[] args)
         {
-            Project = await ProjectFactory.GetOrCreateProject("razorpages" + Guid.NewGuid().ToString().Substring(0, 10).ToLower(), Output);
+            var project = await ProjectFactory.GetOrCreateProject("razorpages" + Guid.NewGuid().ToString().Substring(0, 10).ToLower(), Output);
 
-            var createResult = await Project.RunDotNetNewAsync("razor", auth: auth, args: args);
-            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", Project, createResult));
+            var createResult = await project.RunDotNetNewAsync("razor", auth: auth, args: args);
+            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", project, createResult));
 
             // Verify building in debug works
-            var buildResult = await Project.RunDotNetBuildAsync();
-            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", Project, buildResult));
+            var buildResult = await project.RunDotNetBuildAsync();
+            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", project, buildResult));
 
             // Publish builds in "release" configuration. Running publish should ensure we can compile in release and that we can publish without issues.
-            buildResult = await Project.RunDotNetPublishAsync();
-            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", Project, buildResult));
+            buildResult = await project.RunDotNetPublishAsync();
+            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", project, buildResult));
+
+            return project;
        }
 
 
diff --git a/src/ProjectTemplates/test/WebApiTemplateTest.cs b/src/ProjectTemplates/test/WebApiTemplateTest.cs
index 3ed7ed94f4e5..60dbc8bab1d4 100644
--- a/src/ProjectTemplates/test/WebApiTemplateTest.cs
+++ b/src/ProjectTemplates/test/WebApiTemplateTest.cs
@@ -10,20 +10,18 @@
 
 namespace Templates.Test
 {
-    public class WebApiTemplateTest
+    public class WebApiTemplateTest : LoggedTest
     {
-        public WebApiTemplateTest(ProjectFactoryFixture factoryFixture, ITestOutputHelper output)
+        public WebApiTemplateTest(ProjectFactoryFixture factoryFixture)
         {
             FactoryFixture = factoryFixture;
-            Output = output;
+            Output = new TestOutputLogger(Logger);
         }
 
         public ProjectFactoryFixture FactoryFixture { get; }
 
         public ITestOutputHelper Output { get; }
 
-        public Project Project { get; set; }
-
         [Theory]
         [InlineData("IndividualB2C", null)]
         [InlineData("IndividualB2C", new string[] { "--called-api-url \"https://graph.microsoft.com\"", "--called-api-scopes user.readwrite" })]
@@ -43,49 +41,51 @@ public WebApiTemplateTest(ProjectFactoryFixture factoryFixture, ITestOutputHelpe
         [SkipOnHelix("Cert failures", Queues = "OSX.1014.Amd64;OSX.1014.Amd64.Open")]
         public async Task WebApiTemplateCSharp_WithoutOpenAPI()
         {
-            Project = await FactoryFixture.GetOrCreateProject("webapinoopenapi", Output);
+            var project = await FactoryFixture.GetOrCreateProject("webapinoopenapi", Output);
 
-            var createResult = await Project.RunDotNetNewAsync("webapi", args: new[] { "--no-openapi" });
-            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", Project, createResult));
+            var createResult = await project.RunDotNetNewAsync("webapi", args: new[] { "--no-openapi" });
+            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", project, createResult));
 
-            var buildResult = await Project.RunDotNetBuildAsync();
-            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", Project, buildResult));
+            var buildResult = await project.RunDotNetBuildAsync();
+            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", project, buildResult));
 
-            using var aspNetProcess = Project.StartBuiltProjectAsync();
+            using var aspNetProcess = project.StartBuiltProjectAsync();
             Assert.False(
                 aspNetProcess.Process.HasExited,
-                ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", Project, aspNetProcess.Process));
+                ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", project, aspNetProcess.Process));
 
             await aspNetProcess.AssertNotFound("swagger");
         }
 
-        private async Task PublishAndBuildWebApiTemplate(string languageOverride, string auth, string[] args)
+        private async Task<Project> PublishAndBuildWebApiTemplate(string languageOverride, string auth, string[] args)
         {
-            Project = await FactoryFixture.GetOrCreateProject("webapi" + (languageOverride == "F#" ? "fsharp" : "csharp") + Guid.NewGuid().ToString().Substring(0, 10).ToLower(), Output);
+            var project = await FactoryFixture.GetOrCreateProject("webapi" + (languageOverride == "F#" ? "fsharp" : "csharp") + Guid.NewGuid().ToString().Substring(0, 10).ToLower(), Output);
 
-            var createResult = await Project.RunDotNetNewAsync("webapi", language: languageOverride, auth: auth, args: args);
-            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", Project, createResult));
+            var createResult = await project.RunDotNetNewAsync("webapi", language: languageOverride, auth: auth, args: args);
+            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", project, createResult));
 
             // Avoid the F# compiler. See https://github.com/dotnet/aspnetcore/issues/14022
             if (languageOverride != null)
             {
-                return;
+                return project;
             }
 
-            var publishResult = await Project.RunDotNetPublishAsync();
-            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", Project, publishResult));
+            var publishResult = await project.RunDotNetPublishAsync();
+            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", project, publishResult));
 
             // Run dotnet build after publish. The reason is that one uses Config = Debug and the other uses Config = Release
             // The output from publish will go into bin/Release/netcoreappX.Y/publish and won't be affected by calling build
             // later, while the opposite is not true.
 
-            var buildResult = await Project.RunDotNetBuildAsync();
-            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", Project, buildResult));
+            var buildResult = await project.RunDotNetBuildAsync();
+            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", project, buildResult));
+
+            return project;
         }
 
         private async Task WebApiTemplateCore(string languageOverride)
         {
-            await PublishAndBuildWebApiTemplate(languageOverride, null, null);
+            var project = await PublishAndBuildWebApiTemplate(languageOverride, null, null);
 
             // Avoid the F# compiler. See https://github.com/dotnet/aspnetcore/issues/14022
             if (languageOverride != null)
@@ -93,22 +93,22 @@ private async Task WebApiTemplateCore(string languageOverride)
                 return;
             }
 
-            using (var aspNetProcess = Project.StartBuiltProjectAsync())
+            using (var aspNetProcess = project.StartBuiltProjectAsync())
             {
                 Assert.False(
                     aspNetProcess.Process.HasExited,
-                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", Project, aspNetProcess.Process));
+                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", project, aspNetProcess.Process));
 
                 await aspNetProcess.AssertOk("weatherforecast");
                 await aspNetProcess.AssertOk("swagger");
                 await aspNetProcess.AssertNotFound("/");
             }
 
-            using (var aspNetProcess = Project.StartPublishedProjectAsync())
+            using (var aspNetProcess = project.StartPublishedProjectAsync())
             {
                 Assert.False(
                     aspNetProcess.Process.HasExited,
-                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run published project", Project, aspNetProcess.Process));
+                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run published project", project, aspNetProcess.Process));
 
 
                 await aspNetProcess.AssertOk("weatherforecast");
diff --git a/src/ProjectTemplates/test/WorkerTemplateTest.cs b/src/ProjectTemplates/test/WorkerTemplateTest.cs
index 1656ebb0896b..d1ee495a7899 100644
--- a/src/ProjectTemplates/test/WorkerTemplateTest.cs
+++ b/src/ProjectTemplates/test/WorkerTemplateTest.cs
@@ -9,15 +9,14 @@
 
 namespace Templates.Test
 {
-    public class WorkerTemplateTest
+    public class WorkerTemplateTest : LoggedTest
     {
-        public WorkerTemplateTest(ProjectFactoryFixture projectFactory, ITestOutputHelper output)
+        public WorkerTemplateTest(ProjectFactoryFixture projectFactory)
         {
             ProjectFactory = projectFactory;
-            Output = output;
+            Output = new TestOutputLogger(Logger);
         }
 
-        public Project Project { get; set; }
         public ProjectFactoryFixture ProjectFactory { get; }
         public ITestOutputHelper Output { get; }
 
@@ -27,35 +26,35 @@ public WorkerTemplateTest(ProjectFactoryFixture projectFactory, ITestOutputHelpe
         [InlineData("F#")]
         public async Task WorkerTemplateAsync(string language)
         {
-            Project = await ProjectFactory.GetOrCreateProject(
+            var project = await ProjectFactory.GetOrCreateProject(
                 $"worker-{ language.ToLowerInvariant()[0] }sharp",
                 Output);
 
-            var createResult = await Project.RunDotNetNewAsync("worker", language: language);
-            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", Project, createResult));
+            var createResult = await project.RunDotNetNewAsync("worker", language: language);
+            Assert.True(0 == createResult.ExitCode, ErrorMessages.GetFailedProcessMessage("create/restore", project, createResult));
 
-            var publishResult = await Project.RunDotNetPublishAsync();
-            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", Project, publishResult));
+            var publishResult = await project.RunDotNetPublishAsync();
+            Assert.True(0 == publishResult.ExitCode, ErrorMessages.GetFailedProcessMessage("publish", project, publishResult));
 
             // Run dotnet build after publish. The reason is that one uses Config = Debug and the other uses Config = Release
             // The output from publish will go into bin/Release/netcoreappX.Y/publish and won't be affected by calling build
             // later, while the opposite is not true.
 
-            var buildResult = await Project.RunDotNetBuildAsync();
-            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", Project, buildResult));
+            var buildResult = await project.RunDotNetBuildAsync();
+            Assert.True(0 == buildResult.ExitCode, ErrorMessages.GetFailedProcessMessage("build", project, buildResult));
 
-            using (var aspNetProcess = Project.StartBuiltProjectAsync(hasListeningUri: false))
+            using (var aspNetProcess = project.StartBuiltProjectAsync(hasListeningUri: false))
             {
                 Assert.False(
                     aspNetProcess.Process.HasExited,
-                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", Project, aspNetProcess.Process));
+                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run built project", project, aspNetProcess.Process));
             }
 
-            using (var aspNetProcess = Project.StartPublishedProjectAsync(hasListeningUri: false))
+            using (var aspNetProcess = project.StartPublishedProjectAsync(hasListeningUri: false))
             {
                 Assert.False(
                     aspNetProcess.Process.HasExited,
-                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run published project", Project, aspNetProcess.Process));
+                    ErrorMessages.GetFailedProcessMessageOrEmpty("Run published project", project, aspNetProcess.Process));
             }
         }
     }
diff --git a/src/Shared/E2ETesting/XUnitExtensions/AssemblyFixtureAttribute.cs b/src/Shared/E2ETesting/XUnitExtensions/AssemblyFixtureAttribute.cs
deleted file mode 100644
index b90aca743887..000000000000
--- a/src/Shared/E2ETesting/XUnitExtensions/AssemblyFixtureAttribute.cs
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) .NET Foundation. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using System;
-
-namespace Microsoft.AspNetCore.E2ETesting
-{
-    [AttributeUsage(AttributeTargets.Assembly, AllowMultiple = true)]
-    public class AssemblyFixtureAttribute : Attribute
-    {
-        public AssemblyFixtureAttribute(Type fixtureType)
-        {
-            FixtureType = fixtureType;
-        }
-        public Type FixtureType { get; private set; }
-    }
-}
diff --git a/src/Shared/E2ETesting/XUnitExtensions/XUnitTestCollectionRunnerWIthAssemblyFixture.cs b/src/Shared/E2ETesting/XUnitExtensions/XUnitTestCollectionRunnerWIthAssemblyFixture.cs
deleted file mode 100644
index e9d30ed893de..000000000000
--- a/src/Shared/E2ETesting/XUnitExtensions/XUnitTestCollectionRunnerWIthAssemblyFixture.cs
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) .NET Foundation. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using System;
-using System.Collections.Generic;
-using System.Threading;
-using System.Threading.Tasks;
-using Xunit.Abstractions;
-using Xunit.Sdk;
-
-namespace Microsoft.AspNetCore.E2ETesting
-{
-    public class XunitTestCollectionRunnerWithAssemblyFixture : XunitTestCollectionRunner
-    {
-        private readonly IDictionary<Type, object> _assemblyFixtureMappings;
-        private readonly IMessageSink _diagnosticMessageSink;
-
-        public XunitTestCollectionRunnerWithAssemblyFixture(Dictionary<Type, object> assemblyFixtureMappings,
-                                                            ITestCollection testCollection,
-                                                            IEnumerable<IXunitTestCase> testCases,
-                                                            IMessageSink diagnosticMessageSink,
-                                                            IMessageBus messageBus,
-                                                            ITestCaseOrderer testCaseOrderer,
-                                                            ExceptionAggregator aggregator,
-                                                            CancellationTokenSource cancellationTokenSource)
-            : base(testCollection, testCases, diagnosticMessageSink, messageBus, testCaseOrderer, aggregator, cancellationTokenSource)
-        {
-            _assemblyFixtureMappings = assemblyFixtureMappings;
-            _diagnosticMessageSink = diagnosticMessageSink;
-        }
-
-        protected override Task<RunSummary> RunTestClassAsync(ITestClass testClass, IReflectionTypeInfo @class, IEnumerable<IXunitTestCase> testCases)
-        {
-            var runner = new XunitTestClassRunner(
-                testClass,
-                @class,
-                testCases,
-                _diagnosticMessageSink,
-                MessageBus,
-                TestCaseOrderer,
-                new ExceptionAggregator(Aggregator),
-                CancellationTokenSource,
-                _assemblyFixtureMappings);
-
-            return runner.RunAsync();
-        }
-    }
-}
diff --git a/src/Shared/E2ETesting/XUnitExtensions/XunitTestAssemblyRunnerWithAssemblyFixture.cs b/src/Shared/E2ETesting/XUnitExtensions/XunitTestAssemblyRunnerWithAssemblyFixture.cs
deleted file mode 100644
index d280ac1c0438..000000000000
--- a/src/Shared/E2ETesting/XUnitExtensions/XunitTestAssemblyRunnerWithAssemblyFixture.cs
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) .NET Foundation. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading;
-using System.Threading.Tasks;
-using Xunit.Abstractions;
-using Xunit.Sdk;
-
-namespace Microsoft.AspNetCore.E2ETesting
-{
-    public class XunitTestAssemblyRunnerWithAssemblyFixture : XunitTestAssemblyRunner
-    {
-        private readonly Dictionary<Type, object> _assemblyFixtureMappings = new Dictionary<Type, object>();
-
-        public XunitTestAssemblyRunnerWithAssemblyFixture(ITestAssembly testAssembly,
-                                                          IEnumerable<IXunitTestCase> testCases,
-                                                          IMessageSink diagnosticMessageSink,
-                                                          IMessageSink executionMessageSink,
-                                                          ITestFrameworkExecutionOptions executionOptions)
-            : base(testAssembly, testCases, diagnosticMessageSink, executionMessageSink, executionOptions)
-        {
-        }
-
-        protected override async Task AfterTestAssemblyStartingAsync()
-        {
-            await base.AfterTestAssemblyStartingAsync();
-
-            // Find all the AssemblyFixtureAttributes on the test assembly
-            Aggregator.Run(() =>
-            {
-                var fixturesAttributes = ((IReflectionAssemblyInfo)TestAssembly.Assembly)
-                    .Assembly
-                    .GetCustomAttributes(typeof(AssemblyFixtureAttribute), false)
-                    .Cast<AssemblyFixtureAttribute>()
-                    .ToList();
-
-                // Instantiate all the fixtures
-                foreach (var fixtureAttribute in fixturesAttributes)
-                {
-                    var ctorWithDiagnostics = fixtureAttribute.FixtureType.GetConstructor(new[] { typeof(IMessageSink) });
-                    if (ctorWithDiagnostics != null)
-                    {
-                        _assemblyFixtureMappings[fixtureAttribute.FixtureType] = Activator.CreateInstance(fixtureAttribute.FixtureType, DiagnosticMessageSink);
-                    }
-                    else
-                    {
-                        _assemblyFixtureMappings[fixtureAttribute.FixtureType] = Activator.CreateInstance(fixtureAttribute.FixtureType);
-                    }
-                }
-            });
-        }
-
-        protected override Task BeforeTestAssemblyFinishedAsync()
-        {
-            // Dispose fixtures
-            foreach (var disposable in _assemblyFixtureMappings.Values.OfType<IDisposable>())
-            {
-                Aggregator.Run(disposable.Dispose);
-            }
-
-            return base.BeforeTestAssemblyFinishedAsync();
-        }
-
-        protected override Task<RunSummary> RunTestCollectionAsync(
-            IMessageBus messageBus,
-            ITestCollection testCollection,
-            IEnumerable<IXunitTestCase> testCases,
-            CancellationTokenSource cancellationTokenSource)
-            => new XunitTestCollectionRunnerWithAssemblyFixture(
-                _assemblyFixtureMappings,
-                testCollection,
-                testCases,
-                DiagnosticMessageSink,
-                messageBus,
-                TestCaseOrderer,
-                new ExceptionAggregator(Aggregator),
-                cancellationTokenSource).RunAsync();
-    }
-}
diff --git a/src/Shared/E2ETesting/XUnitExtensions/XunitTestFrameworkExecutorWithAssemblyFixture.cs b/src/Shared/E2ETesting/XUnitExtensions/XunitTestFrameworkExecutorWithAssemblyFixture.cs
deleted file mode 100644
index 420a13082e47..000000000000
--- a/src/Shared/E2ETesting/XUnitExtensions/XunitTestFrameworkExecutorWithAssemblyFixture.cs
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) .NET Foundation. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using System.Collections.Generic;
-using System.Reflection;
-using Xunit.Abstractions;
-using Xunit.Sdk;
-
-namespace Microsoft.AspNetCore.E2ETesting
-{
-    public class XunitTestFrameworkExecutorWithAssemblyFixture : XunitTestFrameworkExecutor
-    {
-        public XunitTestFrameworkExecutorWithAssemblyFixture(AssemblyName assemblyName, ISourceInformationProvider sourceInformationProvider, IMessageSink diagnosticMessageSink)
-            : base(assemblyName, sourceInformationProvider, diagnosticMessageSink)
-        {
-        }
-
-        protected override async void RunTestCases(IEnumerable<IXunitTestCase> testCases, IMessageSink executionMessageSink, ITestFrameworkExecutionOptions executionOptions)
-        {
-            using (var assemblyRunner = new XunitTestAssemblyRunnerWithAssemblyFixture(TestAssembly, testCases, DiagnosticMessageSink, executionMessageSink, executionOptions))
-            {
-                await assemblyRunner.RunAsync();
-            }
-        }
-    }
-}
diff --git a/src/Shared/E2ETesting/XUnitExtensions/XunitTestFrameworkWithAssemblyFixture.cs b/src/Shared/E2ETesting/XUnitExtensions/XunitTestFrameworkWithAssemblyFixture.cs
deleted file mode 100644
index c09fc41294f8..000000000000
--- a/src/Shared/E2ETesting/XUnitExtensions/XunitTestFrameworkWithAssemblyFixture.cs
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) .NET Foundation. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using System.Reflection;
-using Xunit.Abstractions;
-using Xunit.Sdk;
-
-namespace Microsoft.AspNetCore.E2ETesting
-{
-    public class XunitTestFrameworkWithAssemblyFixture : XunitTestFramework
-    {
-        public XunitTestFrameworkWithAssemblyFixture(IMessageSink messageSink)
-            : base(messageSink)
-        {
-        }
-
-        protected override ITestFrameworkExecutor CreateExecutor(AssemblyName assemblyName)
-            => new XunitTestFrameworkExecutorWithAssemblyFixture(assemblyName, SourceInformationProvider, DiagnosticMessageSink);
-    }
-}

From cfbb362d4b368a13c17d8566a02df35d30098095 Mon Sep 17 00:00:00 2001
From: BrennanConroy <brecon@microsoft.com>
Date: Fri, 2 Oct 2020 15:50:19 -0700
Subject: [PATCH 4/4] nullref

---
 src/ProjectTemplates/test/BaselineTest.cs     | 14 +++++++++++--
 .../test/ByteOrderMarkTest.cs                 | 20 ++++++++++++++-----
 .../test/EmptyWebTemplateTest.cs              | 14 +++++++++++--
 src/ProjectTemplates/test/GrpcTemplateTest.cs | 14 +++++++++++--
 .../test/IdentityUIPackageTest.cs             | 14 +++++++++++--
 src/ProjectTemplates/test/MvcTemplateTest.cs  | 16 +++++++++++++--
 .../test/RazorClassLibraryTemplateTest.cs     | 14 +++++++++++--
 .../test/RazorPagesTemplateTest.cs            | 14 +++++++++++--
 .../test/WebApiTemplateTest.cs                | 14 +++++++++++--
 .../test/WorkerTemplateTest.cs                | 14 +++++++++++--
 10 files changed, 125 insertions(+), 23 deletions(-)

diff --git a/src/ProjectTemplates/test/BaselineTest.cs b/src/ProjectTemplates/test/BaselineTest.cs
index f064726e8cd1..23e9320ec7ff 100644
--- a/src/ProjectTemplates/test/BaselineTest.cs
+++ b/src/ProjectTemplates/test/BaselineTest.cs
@@ -35,7 +35,6 @@ public class BaselineTest : LoggedTest
         public BaselineTest(ProjectFactoryFixture projectFactory)
         {
             ProjectFactory = projectFactory;
-            Output = new TestOutputLogger(Logger);
         }
 
         public Project Project { get; set; }
@@ -67,7 +66,18 @@ public static TheoryData<string, string[]> TemplateBaselines
         }
 
         public ProjectFactoryFixture ProjectFactory { get; }
-        public ITestOutputHelper Output { get; }
+        private ITestOutputHelper _output;
+        public ITestOutputHelper Output
+        {
+            get
+            {
+                if (_output == null)
+                {
+                    _output = new TestOutputLogger(Logger);
+                }
+                return _output;
+            }
+        }
 
         [Theory]
         [MemberData(nameof(TemplateBaselines))]
diff --git a/src/ProjectTemplates/test/ByteOrderMarkTest.cs b/src/ProjectTemplates/test/ByteOrderMarkTest.cs
index ba6cd449ae6f..bd5d7a185fc6 100644
--- a/src/ProjectTemplates/test/ByteOrderMarkTest.cs
+++ b/src/ProjectTemplates/test/ByteOrderMarkTest.cs
@@ -14,11 +14,21 @@ namespace Templates.Test
 {
     public class ByteOrderMarkTest : LoggedTest
     {
-        private readonly ITestOutputHelper _output;
+        private ITestOutputHelper _output;
+        public ITestOutputHelper Output
+        {
+            get
+            {
+                if (_output == null)
+                {
+                    _output = new TestOutputLogger(Logger);
+                }
+                return _output;
+            }
+        }
 
         public ByteOrderMarkTest()
         {
-            _output = new TestOutputLogger(Logger);
         }
 
         [Theory]
@@ -45,13 +55,13 @@ public void JSAndJSONInAllTemplates_ShouldNotContainBOM(string projectName)
                 // Check for UTF8 BOM 0xEF,0xBB,0xBF
                 if (bytes[0] == 0xEF && bytes[1] == 0xBB && bytes[2] == 0xBF)
                 {
-                    _output.WriteLine($"File {filePath} has UTF-8 BOM characters.");
+                    Output.WriteLine($"File {filePath} has UTF-8 BOM characters.");
                     filesWithBOMCharactersPresent = true;
                 }
                 // Check for UTF16 BOM 0xFF, 0xFE
                 if (bytes[0] == 0xFF && bytes[1] == 0xFE)
                 {
-                    _output.WriteLine($"File {filePath} has UTF-16 BOM characters.");
+                    Output.WriteLine($"File {filePath} has UTF-16 BOM characters.");
                     filesWithBOMCharactersPresent = true;
                 }
             }
@@ -85,7 +95,7 @@ public void RazorFilesInWebProjects_ShouldContainBOM(string projectName)
                 var expectedBytes = Encoding.UTF8.GetPreamble();
                 if (bytes[0] != expectedBytes[0] || bytes[1] != expectedBytes[1] || bytes[2] != expectedBytes[2])
                 {
-                    _output.WriteLine($"File {filePath} does not have UTF-8 BOM characters.");
+                    Output.WriteLine($"File {filePath} does not have UTF-8 BOM characters.");
                     nonBOMFilesPresent = true;
                 }
             }
diff --git a/src/ProjectTemplates/test/EmptyWebTemplateTest.cs b/src/ProjectTemplates/test/EmptyWebTemplateTest.cs
index 7f09d5823065..ada7b31fac44 100644
--- a/src/ProjectTemplates/test/EmptyWebTemplateTest.cs
+++ b/src/ProjectTemplates/test/EmptyWebTemplateTest.cs
@@ -14,12 +14,22 @@ public class EmptyWebTemplateTest : LoggedTest
         public EmptyWebTemplateTest(ProjectFactoryFixture projectFactory)
         {
             ProjectFactory = projectFactory;
-            Output = new TestOutputLogger(Logger);
         }
 
         public ProjectFactoryFixture ProjectFactory { get; }
 
-        public ITestOutputHelper Output { get; }
+        private ITestOutputHelper _output;
+        public ITestOutputHelper Output
+        {
+            get
+            {
+                if (_output == null)
+                {
+                    _output = new TestOutputLogger(Logger);
+                }
+                return _output;
+            }
+        }
 
         [ConditionalFact]
         [SkipOnHelix("Cert failures", Queues = "OSX.1014.Amd64;OSX.1014.Amd64.Open")]
diff --git a/src/ProjectTemplates/test/GrpcTemplateTest.cs b/src/ProjectTemplates/test/GrpcTemplateTest.cs
index 90d5eb5ad306..f5a9b73064f1 100644
--- a/src/ProjectTemplates/test/GrpcTemplateTest.cs
+++ b/src/ProjectTemplates/test/GrpcTemplateTest.cs
@@ -16,11 +16,21 @@ public class GrpcTemplateTest : LoggedTest
         public GrpcTemplateTest(ProjectFactoryFixture projectFactory)
         {
             ProjectFactory = projectFactory;
-            Output = new TestOutputLogger(Logger);
         }
 
         public ProjectFactoryFixture ProjectFactory { get; }
-        public ITestOutputHelper Output { get; }
+        private ITestOutputHelper _output;
+        public ITestOutputHelper Output
+        {
+            get
+            {
+                if (_output == null)
+                {
+                    _output = new TestOutputLogger(Logger);
+                }
+                return _output;
+            }
+        }
 
         [ConditionalFact]
         [SkipOnHelix("Not supported queues", Queues = "Windows.7.Amd64;Windows.7.Amd64.Open;Windows.81.Amd64.Open;OSX.1014.Amd64;OSX.1014.Amd64.Open")]
diff --git a/src/ProjectTemplates/test/IdentityUIPackageTest.cs b/src/ProjectTemplates/test/IdentityUIPackageTest.cs
index b2bb9f384e97..94c569496efa 100644
--- a/src/ProjectTemplates/test/IdentityUIPackageTest.cs
+++ b/src/ProjectTemplates/test/IdentityUIPackageTest.cs
@@ -17,12 +17,22 @@ public class IdentityUIPackageTest : LoggedTest
         public IdentityUIPackageTest(ProjectFactoryFixture projectFactory)
         {
             ProjectFactory = projectFactory;
-            Output = new TestOutputLogger(Logger);
         }
 
         public ProjectFactoryFixture ProjectFactory { get; set; }
 
-        public ITestOutputHelper Output { get; }
+        private ITestOutputHelper _output;
+        public ITestOutputHelper Output
+        {
+            get
+            {
+                if (_output == null)
+                {
+                    _output = new TestOutputLogger(Logger);
+                }
+                return _output;
+            }
+        }
 
         public static string[] Bootstrap4ContentFiles { get; } = new string[]
         {
diff --git a/src/ProjectTemplates/test/MvcTemplateTest.cs b/src/ProjectTemplates/test/MvcTemplateTest.cs
index 8e7e1431e3e0..649286396976 100644
--- a/src/ProjectTemplates/test/MvcTemplateTest.cs
+++ b/src/ProjectTemplates/test/MvcTemplateTest.cs
@@ -10,6 +10,7 @@
 using Templates.Test.Helpers;
 using Xunit;
 using Xunit.Abstractions;
+using Xunit.Sdk;
 
 namespace Templates.Test
 {
@@ -18,11 +19,22 @@ public class MvcTemplateTest : LoggedTest
         public MvcTemplateTest(ProjectFactoryFixture projectFactory)
         {
             ProjectFactory = projectFactory;
-            Output = new TestOutputLogger(Logger);
         }
 
         public ProjectFactoryFixture ProjectFactory { get; }
-        public ITestOutputHelper Output { get; }
+
+        private ITestOutputHelper _output;
+        public ITestOutputHelper Output
+        {
+            get
+            {
+                if (_output == null)
+                {
+                    _output = new TestOutputLogger(Logger);
+                }
+                return _output;
+            }
+        }
 
         [Fact]
         public async Task MvcTemplate_NoAuthFSharp() => await MvcTemplateCore(languageOverride: "F#");
diff --git a/src/ProjectTemplates/test/RazorClassLibraryTemplateTest.cs b/src/ProjectTemplates/test/RazorClassLibraryTemplateTest.cs
index 11110e7f4f11..2977ed78e813 100644
--- a/src/ProjectTemplates/test/RazorClassLibraryTemplateTest.cs
+++ b/src/ProjectTemplates/test/RazorClassLibraryTemplateTest.cs
@@ -14,11 +14,21 @@ public class RazorClassLibraryTemplateTest : LoggedTest
         public RazorClassLibraryTemplateTest(ProjectFactoryFixture projectFactory)
         {
             ProjectFactory = projectFactory;
-            Output = new TestOutputLogger(Logger);
         }
 
         public ProjectFactoryFixture ProjectFactory { get; }
-        public ITestOutputHelper Output { get; }
+        private ITestOutputHelper _output;
+        public ITestOutputHelper Output
+        {
+            get
+            {
+                if (_output == null)
+                {
+                    _output = new TestOutputLogger(Logger);
+                }
+                return _output;
+            }
+        }
 
         [Fact]
         public async Task RazorClassLibraryTemplate_WithViews_Async()
diff --git a/src/ProjectTemplates/test/RazorPagesTemplateTest.cs b/src/ProjectTemplates/test/RazorPagesTemplateTest.cs
index 260a60ec4380..919f410f0f61 100644
--- a/src/ProjectTemplates/test/RazorPagesTemplateTest.cs
+++ b/src/ProjectTemplates/test/RazorPagesTemplateTest.cs
@@ -17,12 +17,22 @@ public class RazorPagesTemplateTest : LoggedTest
         public RazorPagesTemplateTest(ProjectFactoryFixture projectFactory)
         {
             ProjectFactory = projectFactory;
-            Output = new TestOutputLogger(Logger);
         }
 
         public ProjectFactoryFixture ProjectFactory { get; set; }
 
-        public ITestOutputHelper Output { get; }
+        private ITestOutputHelper _output;
+        public ITestOutputHelper Output
+        {
+            get
+            {
+                if (_output == null)
+                {
+                    _output = new TestOutputLogger(Logger);
+                }
+                return _output;
+            }
+        }
 
         [ConditionalFact]
         [SkipOnHelix("Cert failures", Queues = "OSX.1014.Amd64;OSX.1014.Amd64.Open")]
diff --git a/src/ProjectTemplates/test/WebApiTemplateTest.cs b/src/ProjectTemplates/test/WebApiTemplateTest.cs
index 60dbc8bab1d4..5e18beaf0381 100644
--- a/src/ProjectTemplates/test/WebApiTemplateTest.cs
+++ b/src/ProjectTemplates/test/WebApiTemplateTest.cs
@@ -15,12 +15,22 @@ public class WebApiTemplateTest : LoggedTest
         public WebApiTemplateTest(ProjectFactoryFixture factoryFixture)
         {
             FactoryFixture = factoryFixture;
-            Output = new TestOutputLogger(Logger);
         }
 
         public ProjectFactoryFixture FactoryFixture { get; }
 
-        public ITestOutputHelper Output { get; }
+        private ITestOutputHelper _output;
+        public ITestOutputHelper Output
+        {
+            get
+            {
+                if (_output == null)
+                {
+                    _output = new TestOutputLogger(Logger);
+                }
+                return _output;
+            }
+        }
 
         [Theory]
         [InlineData("IndividualB2C", null)]
diff --git a/src/ProjectTemplates/test/WorkerTemplateTest.cs b/src/ProjectTemplates/test/WorkerTemplateTest.cs
index d1ee495a7899..0b04d17c6d79 100644
--- a/src/ProjectTemplates/test/WorkerTemplateTest.cs
+++ b/src/ProjectTemplates/test/WorkerTemplateTest.cs
@@ -14,11 +14,21 @@ public class WorkerTemplateTest : LoggedTest
         public WorkerTemplateTest(ProjectFactoryFixture projectFactory)
         {
             ProjectFactory = projectFactory;
-            Output = new TestOutputLogger(Logger);
         }
 
         public ProjectFactoryFixture ProjectFactory { get; }
-        public ITestOutputHelper Output { get; }
+        private ITestOutputHelper _output;
+        public ITestOutputHelper Output
+        {
+            get
+            {
+                if (_output == null)
+                {
+                    _output = new TestOutputLogger(Logger);
+                }
+                return _output;
+            }
+        }
 
         [ConditionalTheory]
         [OSSkipCondition(OperatingSystems.Linux, SkipReason = "https://github.com/dotnet/sdk/issues/12831")]