From 08298ecb293dc7be77fc655d2daff5ad76395248 Mon Sep 17 00:00:00 2001
From: Iman Malik <imanmalik@microsoft.com>
Date: Thu, 19 May 2022 13:35:37 -0400
Subject: [PATCH] test preferred region list is null when app region is set

---
 .../ClientConfigurationDiagnosticTest.cs                         | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Microsoft.Azure.Cosmos/tests/Microsoft.Azure.Cosmos.EmulatorTests/ClientConfigurationDiagnosticTest.cs b/Microsoft.Azure.Cosmos/tests/Microsoft.Azure.Cosmos.EmulatorTests/ClientConfigurationDiagnosticTest.cs
index 50636a04d6..89fbccb62d 100644
--- a/Microsoft.Azure.Cosmos/tests/Microsoft.Azure.Cosmos.EmulatorTests/ClientConfigurationDiagnosticTest.cs
+++ b/Microsoft.Azure.Cosmos/tests/Microsoft.Azure.Cosmos.EmulatorTests/ClientConfigurationDiagnosticTest.cs
@@ -86,6 +86,7 @@ public void ClientConfigWithOptionsTest()
 
             ClientConfigurationTraceDatum clientConfig = new ClientConfigurationTraceDatum(context, DateTime.UtcNow);
             Assert.AreEqual(clientConfig.ConsistencyConfig.ApplicationRegion, "East US");
+            Assert.IsNull(clientConfig.ConsistencyConfig.PreferredRegions);
 
         }