From 73ac1a91d5c196819c39b18ac4ac04479a4b665b Mon Sep 17 00:00:00 2001
From: Stephen Toub <stoub@microsoft.com>
Date: Thu, 5 Nov 2020 17:50:19 -0500
Subject: [PATCH] Update SharedPerformanceCounter assert

---
 .../src/System/Diagnostics/SharedPerformanceCounter.cs          | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libraries/System.Diagnostics.PerformanceCounter/src/System/Diagnostics/SharedPerformanceCounter.cs b/src/libraries/System.Diagnostics.PerformanceCounter/src/System/Diagnostics/SharedPerformanceCounter.cs
index 8d9dfd334d78b4..633730d6bb14d5 100644
--- a/src/libraries/System.Diagnostics.PerformanceCounter/src/System/Diagnostics/SharedPerformanceCounter.cs
+++ b/src/libraries/System.Diagnostics.PerformanceCounter/src/System/Diagnostics/SharedPerformanceCounter.cs
@@ -697,7 +697,7 @@ private unsafe CategoryData GetCategoryData()
                             }
                             else
                             {
-                                Debug.Assert(counterNamesObject is string[], $"Expected string[], got '{counterNamesObject}' with kind '{categoryKey.GetValueKind("Counter Names")}'for category '{_categoryName}'");
+                                Debug.Assert(counterNamesObject is string[], $"Expected string[], got '{counterNamesObject}' of type '{counterNamesObject?.GetType()}' with kind '{categoryKey.GetValueKind("Counter Names")}' for category '{_categoryName}'");
                                 string[] counterNames = (string[])counterNamesObject;
                                 for (int i = 0; i < counterNames.Length; i++)
                                     counterNames[i] = counterNames[i].ToLowerInvariant();