Run host tests on osx_arm64

eng/pipelines/runtime.yml

@@ -86,21 +86,6 @@ extends:
                 eq(stageDependencies.EvaluatePaths.evaluate_paths.outputs['SetPathVars_non_mono_and_wasm.containsChange'], true),
                 eq(variables['isRollingBuild'], true))
 
-      - template: /eng/pipelines/common/platform-matrix.yml
-        parameters:
-          jobTemplate: /eng/pipelines/common/global-build-job.yml
-          buildConfig: ${{ variables.debugOnPrReleaseOnRolling }}
-          platforms:
-          - osx_arm64
-          jobParameters:
-            nameSuffix: AllSubsets_CoreCLR
-            buildArgs: -s clr+libs+host+packs -rc Release -c Release -lc $(_BuildConfig)
-            timeoutInMinutes: 120
-            condition: >-
-              or(
-                eq(stageDependencies.EvaluatePaths.evaluate_paths.outputs['SetPathVars_non_mono_and_wasm.containsChange'], true),
-                eq(variables['isRollingBuild'], true))
-
       - template: /eng/pipelines/common/platform-matrix.yml
         parameters:
           jobTemplate: /eng/pipelines/common/global-build-job.yml
@@ -208,6 +193,36 @@ extends:
                 eq(stageDependencies.EvaluatePaths.evaluate_paths.outputs['SetPathVars_libraries.containsChange'], true),
                 eq(variables['isRollingBuild'], true))
 
+      #
+      # Build CoreCLR and Libraries
+      # For running installer tests
+      #
+      - template: /eng/pipelines/common/platform-matrix.yml
+        parameters:
+          jobTemplate: /eng/pipelines/common/global-build-job.yml
+          buildConfig: release
+          platforms:
+          - osx_arm64
+          jobParameters:
+            nameSuffix: CoreCLR_Libraries
+            buildArgs: -s clr+libs -c $(_BuildConfig)
+            timeoutInMinutes: 120
+            postBuildSteps:
+              - template: /eng/pipelines/common/upload-artifact-step.yml
+                parameters:
+                  rootFolder: $(Build.SourcesDirectory)/artifacts/bin
+                  includeRootFolder: false
+                  archiveType: $(archiveType)
+                  archiveExtension: $(archiveExtension)
+                  tarCompression: $(tarCompression)
+                  artifactName: CoreCLR_Libraries_BuildArtifacts_$(osGroup)$(osSubgroup)_$(archType)_$(_BuildConfig)
+                  displayName: Build Assets
+            condition: >-
+              or(
+                eq(stageDependencies.EvaluatePaths.evaluate_paths.outputs['SetPathVars_non_mono_and_wasm.containsChange'], true),
+                eq(stageDependencies.EvaluatePaths.evaluate_paths.outputs['SetPathVars_libraries.containsChange'], true),
+                eq(variables['isRollingBuild'], true))
+
       #
       # Build CoreCLR and Libraries with the respective tests
       # for the test configurations we run.
@@ -1261,6 +1276,7 @@ extends:
           buildConfig: ${{ variables.debugOnPrReleaseOnRolling }}
           platforms:
             - windows_x86
+            - osx_arm64
           helixQueuesTemplate: /eng/pipelines/installer/helix-queues-setup.yml
           jobParameters:
             nameSuffix: Installer_Build_And_Test

src/installer/tests/HostActivation.Tests/FrameworkResolution/FrameworkResolution.cs

@@ -33,7 +33,7 @@ public FrameworkResolution(SharedTestState sharedState)
         public void Default(string requestedVersion, string resolvedVersion)
         {
             CommandResult result = RunTest(
-                new TestSettings().WithRuntimeConfigCustomizer(rc => 
+                new TestSettings().WithRuntimeConfigCustomizer(rc =>
                     rc.WithFramework(MicrosoftNETCoreApp, requestedVersion)));
 
             result.ShouldHaveResolvedFrameworkOrFailToFind(MicrosoftNETCoreApp, resolvedVersion);
@@ -137,6 +137,12 @@ public SharedTestState()
                 foreach (string version in EmptyVersions)
                     Directory.CreateDirectory(Path.Combine(InstalledDotNet.SharedFxPath, version));
 
+                // Enable test-only behaviour. We always do this - even for tests that don't need the behaviour.
+                // On macOS with system integrity protection enabled, if the binary is loaded, modified (test-only
+                // behaviour rewrites part of the binary), and loaded again, the process will crash.
+                // We don't bother disabling it later, as we just delete the containing folder after tests run.
+                _ = TestOnlyProductBehavior.Enable(InstalledDotNet.GreatestVersionHostFxrFilePath);
+
                 App = CreateFrameworkReferenceApp();
             }
         }