Make PlatformDetection.IsInHelix lazy (#68445)

* Make IsInHelix lazy * Update src/libraries/Common/tests/TestUtilities/System/PlatformDetection.cs Co-authored-by: Adeel Mujahid <[email protected]> Co-authored-by: Adeel Mujahid <[email protected]>
dotnet · Apr 24, 2022 · 46464bd · 46464bd
1 parent 4fe6359
commit 46464bd
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/libraries/Common/tests/TestUtilities/System/PlatformDetection.cs b/src/libraries/Common/tests/TestUtilities/System/PlatformDetection.cs
@@ -23,7 +23,8 @@ public static partial class PlatformDetection
         // do it in a way that failures don't cascade.
         //
 
-        public static readonly bool IsInHelix = Environment.GetEnvironmentVariables().Keys.Cast<string>().Where(key => key.StartsWith("HELIX")).Any();
+        private static Lazy<bool> s_IsInHelix => new Lazy<bool>(() => Environment.GetEnvironmentVariables().Keys.Cast<string>().Any(key => key.StartsWith("HELIX")));
+        public static bool IsInHelix => s_IsInHelix.Value;
 
         public static bool IsNetCore => Environment.Version.Major >= 5 || RuntimeInformation.FrameworkDescription.StartsWith(".NET Core", StringComparison.OrdinalIgnoreCase);
         public static bool IsMonoRuntime => Type.GetType("Mono.RuntimeStructs") != null;