Create test package for macOS on release builds (#9344)

tools/releaseBuild/azureDevOps/releaseBuild.yml

@@ -97,6 +97,11 @@ jobs:
     buildName: linux
     pool: Hosted Ubuntu 1604
 
+- template: templates/testartifacts.yml
+  parameters:
+    buildName: macOS
+    pool: Hosted Mac Internal
+
 - job: release_json
   displayName: Create and Upload release.json
   steps:

tools/releaseBuild/azureDevOps/templates/testartifacts.yml

@@ -28,9 +28,12 @@ jobs:
       $packageName = if ($IsWindows) {
         "TestPackage-win.zip"
       }
-      else {
+      elseif ($IsLinux) {
         "TestPackage-linux.zip"
       }
+      else {
+        "TestPackage-macOS.zip"
+      }
 
       Rename-Item $(System.ArtifactsDirectory)/TestPackage.zip $packageName