1 files changed, 27 insertions, 0 deletions

diff --git a/src/test/burn/WixTestTools/LongRuntimeFactAttribute.cs b/src/test/burn/WixTestTools/LongRuntimeFactAttribute.cs
new file mode 100644
index 00000000..1da10df8
--- /dev/null
+++ b/src/test/burn/WixTestTools/LongRuntimeFactAttribute.cs
@@ -0,0 +1,27 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixTestTools
+{
+    using System;
+
+    public class LongRuntimeFactAttribute : RuntimeFactAttribute
+    {
+        const string RequiredEnvironmentVariableName = "LongRuntimeTestsEnabled";
+
+        public static bool LongRuntimeTestsEnabled { get; }
+
+        static LongRuntimeFactAttribute()
+        {
+            var testsEnabledString = Environment.GetEnvironmentVariable(RequiredEnvironmentVariableName);
+            LongRuntimeTestsEnabled = Boolean.TryParse(testsEnabledString, out var testsEnabled) && testsEnabled;
+        }
+
+        public LongRuntimeFactAttribute()
+        {
+            if (!LongRuntimeTestsEnabled)
+            {
+                this.Skip = $"These tests take a long time to run, so the {RequiredEnvironmentVariableName} environment variable must be set to true.";
+            }
+        }
+    }
+}