Fix running native aot testing locally (#125354)

Fixes #125317

Author: MichalStrehovsky

eng/pipelines/extra-platforms/runtime-extra-platforms-ioslike.yml

@@ -163,7 +163,7 @@ jobs:
         - template: /eng/pipelines/common/templates/runtimes/build-runtime-tests-and-send-to-helix.yml
           parameters:
             creator: dotnet-bot
-            testBuildArgs: tree nativeaot/SmokeTests /p:BuildNativeAOTRuntimePack=true
+            testBuildArgs: tree nativeaot/MobileSmokeTest /p:BuildNativeAOTRuntimePack=true
             testRunNamePrefixSuffix: NativeAOT_$(_BuildConfig)
             buildAllTestsAsStandalone: true
 

eng/pipelines/extra-platforms/runtime-extra-platforms-ioslikesimulator.yml

@@ -130,7 +130,7 @@ jobs:
         - template: /eng/pipelines/common/templates/runtimes/build-runtime-tests-and-send-to-helix.yml
           parameters:
             creator: dotnet-bot
-            testBuildArgs: tree nativeaot/SmokeTests /p:BuildNativeAOTRuntimePack=true
+            testBuildArgs: tree nativeaot/MobileSmokeTest /p:BuildNativeAOTRuntimePack=true
             testRunNamePrefixSuffix: NativeAOT_$(_BuildConfig)
             buildAllTestsAsStandalone: true
 

eng/pipelines/extra-platforms/runtime-extra-platforms-maccatalyst.yml

@@ -162,7 +162,7 @@ jobs:
           parameters:
             creator: dotnet-bot
             buildAllTestsAsStandalone: true
-            testBuildArgs: tree nativeaot/SmokeTests /p:BuildNativeAOTRuntimePack=true
+            testBuildArgs: tree nativeaot/MobileSmokeTest /p:BuildNativeAOTRuntimePack=true
             testRunNamePrefixSuffix: NativeAOT_$(_BuildConfig)
 
 #
@@ -201,7 +201,7 @@ jobs:
           parameters:
             creator: dotnet-bot
             buildAllTestsAsStandalone: true
-            testBuildArgs: tree nativeaot/SmokeTests /p:BuildNativeAOTRuntimePack=true /p:DevTeamProvisioning=adhoc /p:EnableAppSandbox=true
+            testBuildArgs: tree nativeaot/MobileSmokeTest /p:BuildNativeAOTRuntimePack=true /p:DevTeamProvisioning=adhoc /p:EnableAppSandbox=true
             testRunNamePrefixSuffix: NativeAOT_$(_BuildConfig)
 
 #

src/tests/nativeaot/Directory.Build.props

@@ -5,11 +5,5 @@
   <PropertyGroup>
     <!-- We expect trimming to be fully enabled in these tests -->
     <EnableAggressiveTrimming>true</EnableAggressiveTrimming>
-
-    <!--
-      Each of these tests is considered its own "merged runner" that contains merged-in tests.
-      This allows the tests to run on mobile platforms where process isolation is not supported.
-    -->
-    <HasMergedInTests>true</HasMergedInTests>
   </PropertyGroup>
 </Project>

src/tests/nativeaot/Directory.Build.targets

@@ -0,0 +1,28 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System;
+using System.Runtime.CompilerServices;
+
+unsafe class Program
+{
+    [MethodImpl(MethodImplOptions.NoInlining)]
+    static int ReadPointer(int* pVal)
+    {
+        return *pVal;
+    }
+
+    static int Main()
+    {
+        try
+        {
+            ReadPointer(null);
+        }
+        catch (Exception)
+        {
+            return 100;
+        }
+
+        return 1;
+    }
+}

src/tests/nativeaot/MobileSmokeTest/MobileSmokeTest.cs

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <ReferenceXUnitWrapperGenerator>false</ReferenceXUnitWrapperGenerator>
+    <HasMergedInTests>true</HasMergedInTests>
+    <CLRTestTargetUnsupported Condition="'$(TargetsAppleMobile)' != 'true'">true</CLRTestTargetUnsupported>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Compile Include="MobileSmokeTest.cs" />
+  </ItemGroup>
+
+  <Import Project="$(TestSourceDir)MergedTestRunner.targets" />
+</Project>

src/tests/nativeaot/MobileSmokeTest/MobileSmokeTest.csproj

@@ -5,8 +5,8 @@
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <StartupHookSupport>true</StartupHookSupport>
     <NoWarn>$(NoWarn);IL2026</NoWarn>
+    <RequiresProcessIsolation>true</RequiresProcessIsolation>
     <ReferenceXUnitWrapperGenerator>false</ReferenceXUnitWrapperGenerator>
-    <HasMergedInTests>true</HasMergedInTests>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="StartupHook.cs" />

src/tests/nativeaot/StartupHook/StartupHook.csproj

@@ -0,0 +1,7 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <ItemGroup>
+    <MergedWrapperProjectReference Include="*/**/*.??proj" Exclude="*/**/Library.csproj;MobileSmokeTest/MobileSmokeTest.csproj" />
+  </ItemGroup>
+
+  <Import Project="$(TestSourceDir)MergedTestRunner.targets" />
+</Project>