Code Quality: Added a test project to ensure AoT compatibility of external packages & class libraries

Directory.Packages.props

@@ -27,6 +27,7 @@
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="9.0.5" />
     <PackageVersion Include="Microsoft.Extensions.Hosting" Version="9.0.5" />
     <PackageVersion Include="Microsoft.Extensions.Logging" Version="9.0.5" />
+    <PackageVersion Include="Microsoft.TestPlatform.TestHost" Version="17.13.0" />
     <PackageVersion Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.26100.3916" />
     <PackageVersion Include="Microsoft.Xaml.Behaviors.WinUI.Managed" Version="3.0.0" />
     <PackageVersion Include="OwlCore.Storage" Version="0.12.2" />

Files.slnx

@@ -75,6 +75,12 @@
     </Project>
   </Folder>
   <Folder Name="/tests/">
+    <Project Path="tests/Files.App.UnitTests/Files.App.UnitTests.csproj" Id="dcd7e0a5-b198-4359-ab3b-1ca130997337">
+      <Platform Solution="*|arm64" Project="ARM64" />
+      <Platform Solution="*|x64" Project="x64" />
+      <Platform Solution="*|x86" Project="x86" />
+      <Deploy />
+    </Project>
     <Project Path="tests/Files.App.UITests/Files.App.UITests.csproj">
       <Platform Solution="*|arm64" Project="arm64" />
       <Platform Solution="*|x64" Project="x64" />

tests/Files.App.UnitTests/App.xaml

@@ -0,0 +1,15 @@
+<Application
+	x:Class="Files.App.UnitTests.App"
+	xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+	xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+	xmlns:local="using:Files.App.UnitTests">
+
+	<Application.Resources>
+		<ResourceDictionary>
+			<ResourceDictionary.MergedDictionaries>
+				<XamlControlsResources xmlns="using:Microsoft.UI.Xaml.Controls" />
+			</ResourceDictionary.MergedDictionaries>
+		</ResourceDictionary>
+	</Application.Resources>
+
+</Application>

tests/Files.App.UnitTests/App.xaml.cs

@@ -0,0 +1,30 @@
+// Copyright (c) Files Community
+// Licensed under the MIT License.
+
+using Microsoft.UI.Xaml;
+using Microsoft.VisualStudio.TestTools.UnitTesting.AppContainer;
+
+namespace Files.App.UnitTests
+{
+	public partial class App : Application
+	{
+		private Window? _window;
+
+		public App()
+		{
+			InitializeComponent();
+		}
+
+		protected override void OnLaunched(LaunchActivatedEventArgs args)
+		{
+			Microsoft.VisualStudio.TestPlatform.TestExecutor.UnitTestClient.CreateDefaultUI();
+
+			_window = new MainWindow();
+			_window.Activate();
+
+			UITestMethodAttribute.DispatcherQueue = _window.DispatcherQueue;
+
+			Microsoft.VisualStudio.TestPlatform.TestExecutor.UnitTestClient.Run(System.Environment.CommandLine);
+		}
+	}
+}

tests/Files.App.UnitTests/Files.App.UnitTests.csproj

@@ -0,0 +1,42 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>$(WindowsTargetFramework)</TargetFramework>
+        <TargetPlatformMinVersion>$(MinimalWindowsVersion)</TargetPlatformMinVersion>
+        <OutputType>WinExe</OutputType>
+        <ApplicationManifest>app.manifest</ApplicationManifest>
+        <Platforms>x86;x64;ARM64</Platforms>
+        <RuntimeIdentifiers>win-x86;win-x64;win-arm64</RuntimeIdentifiers>
+        <PublishProfile>win-$(Platform).pubxml</PublishProfile>
+        <UseWinUI>true</UseWinUI>
+        <EnableMsixTooling>true</EnableMsixTooling>
+        <Nullable>enable</Nullable>
+        <PublishAot>true</PublishAot>
+        <PublishTrimmed>true</PublishTrimmed>
+        <IlcGenerateMstatFile>true</IlcGenerateMstatFile>
+        <IlcGenerateDgmlFile>true</IlcGenerateDgmlFile>
+        <HasPackageAndPublishMenu Condition="'$(DisableHasPackageAndPublishMenuAddedByProject)'!='true' and '$(EnableMsixTooling)'=='true'">true</HasPackageAndPublishMenu>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <Manifest Include="$(ApplicationManifest)" />
+        <Content Include="Assets\*.png" />
+        <ProjectCapability Include="TestContainer" />
+        <ProjectCapability Condition="'$(DisableMsixProjectCapabilityAddedByProject)'!='true' and '$(EnableMsixTooling)'=='true'" Include="Msix" />
+    </ItemGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Microsoft.TestPlatform.TestHost" />
+        <PackageReference Include="MSTest.TestAdapter" />
+        <PackageReference Include="MSTest.TestFramework" />
+        <PackageReference Include="Microsoft.Windows.SDK.BuildTools" />
+        <PackageReference Include="Microsoft.WindowsAppSDK" />
+    </ItemGroup>
+
+    <ItemGroup>
+        <ProjectReference Include="..\..\src\Files.App.CsWin32\Files.App.CsWin32.csproj" />
+        <ProjectReference Include="..\..\src\Files.App.Storage\Files.App.Storage.csproj" />
+        <ProjectReference Include="..\..\src\Files.Shared\Files.Shared.csproj" />
+    </ItemGroup>
+
+</Project>

tests/Files.App.UnitTests/MainWindow.xaml

@@ -0,0 +1,14 @@
+<Window
+	x:Class="Files.App.UnitTests.MainWindow"
+	xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+	xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+	xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+	xmlns:local="using:Files.App.UnitTests"
+	xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+	Title="Files.App.UnitTests"
+	mc:Ignorable="d">
+	<Window.SystemBackdrop>
+		<MicaBackdrop />
+	</Window.SystemBackdrop>
+
+</Window>

tests/Files.App.UnitTests/MainWindow.xaml.cs

@@ -0,0 +1,17 @@
+// Copyright (c) Files Community
+// Licensed under the MIT License.
+
+using Microsoft.UI.Xaml;
+
+namespace Files.App.UnitTests
+{
+	public sealed partial class MainWindow : Window
+	{
+		public MainWindow()
+		{
+			InitializeComponent();
+
+			ExtendsContentIntoTitleBar = true;
+		}
+	}
+}

tests/Files.App.UnitTests/Package.appxmanifest

@@ -0,0 +1,47 @@
+<Package
+	xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10"
+	xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest"
+	xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10"
+	xmlns:rescap="http://schemas.microsoft.com/appx/manifest/foundation/windows10/restrictedcapabilities"
+	IgnorableNamespaces="uap rescap">
+
+	<Identity
+		Name="f20f07f5-b301-4f12-92af-febb4e36abaf"
+		Publisher="CN=Files Community"
+		Version="1.0.2.0" />
+
+	<Properties>
+		<DisplayName>Files Unit Test WinUI app</DisplayName>
+		<PublisherDisplayName>Files Community</PublisherDisplayName>
+		<Logo>Assets\StoreLogo.png</Logo>
+	</Properties>
+
+	<Dependencies>
+		<TargetDeviceFamily Name="Windows.Desktop" MinVersion="10.0.19041.0" MaxVersionTested="10.0.22621.0" />
+	</Dependencies>
+
+	<Resources>
+		<Resource Language="x-generate"/>
+	</Resources>
+
+	<Applications>
+		<Application Id="App"
+			Executable="$targetnametoken$.exe"
+			EntryPoint="$targetentrypoint$">
+			<uap:VisualElements
+				DisplayName="Files.App.UnitTests"
+				Description="Files.App.UnitTests"
+				BackgroundColor="transparent"
+				Square150x150Logo="Assets\Square150x150Logo.png"
+				Square44x44Logo="Assets\Square44x44Logo.png">
+				<uap:DefaultTile Wide310x150Logo="Assets\Wide310x150Logo.png" />
+				<uap:SplashScreen Image="Assets\SplashScreen.png" />
+			</uap:VisualElements>
+		</Application>
+	</Applications>
+
+	<Capabilities>
+		<rescap:Capability Name="runFullTrust" />
+	</Capabilities>
+
+</Package>

tests/Files.App.UnitTests/UnitTests.cs

@@ -0,0 +1,26 @@
+// Copyright (c) Files Community
+// Licensed under the MIT License.
+
+using Microsoft.UI.Xaml.Controls;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Microsoft.VisualStudio.TestTools.UnitTesting.AppContainer;
+
+namespace App1
+{
+	[TestClass]
+	public class UnitTest1
+	{
+		[TestMethod]
+		public void TestMethod1()
+		{
+			Assert.AreEqual(0, 0);
+		}
+
+		[UITestMethod]
+		public void TestMethod2()
+		{
+			var grid = new Grid();
+			Assert.AreEqual(0, grid.MinWidth);
+		}
+	}
+}

tests/Files.App.UnitTests/app.manifest

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+	<assemblyIdentity version="1.0.0.0" name="Files.App.UnitTests.app"/>
+
+	<compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+		<application>
+			<supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />
+		</application>
+	</compatibility>
+
+	<application xmlns="urn:schemas-microsoft-com:asm.v3">
+		<windowsSettings>
+			<dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
+		</windowsSettings>
+	</application>
+
+</assembly>