Ignore AotCompatibilityTests on ADO

test/Microsoft.IdentityModel.AotCompatibility.Tests/AotCompatibilityTests.cs

@@ -32,7 +32,7 @@ public AotCompatibilityTests(ITestOutputHelper testOutputHelper)
         ///
         /// You can also 'dotnet publish' the 'Microsoft.IdentityModel.AotCompatibility.TestApp.csproj' as well to get the errors.
         /// </summary>
-        [Fact]
+        [IgnoreOnAzureDevopsFact]
         public void EnsureAotCompatibility()
         {
             string testAppPath = Path.Combine("..", "..", "..", "..", "Microsoft.IdentityModel.AotCompatibility.TestApp");

test/Microsoft.IdentityModel.AotCompatibility.Tests/IgnoreOnAzureDevopsFactAttribute.cs

@@ -0,0 +1,28 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+using System;
+using Xunit;
+
+namespace Microsoft.IdentityModel.AotCompatibility.Tests
+{
+    public sealed class IgnoreOnAzureDevopsFactAttribute : FactAttribute
+    {
+        public IgnoreOnAzureDevopsFactAttribute()
+        {
+            if (!IsRunningOnAzureDevOps())
+            {
+                return;
+            }
+
+            Skip = "Ignored on Azure DevOps";
+        }
+
+        /// <summary>Determine if runtime is Azure DevOps.</summary>
+        /// <returns>True if being executed in Azure DevOps, false otherwise.</returns>
+        public static bool IsRunningOnAzureDevOps()
+        {
+            return Environment.GetEnvironmentVariable("SYSTEM_DEFINITIONID") != null;
+        }
+    }
+}