diff --git a/clients/dotnet/ZB.MOM.WW.MxGateway.Client.Tests/LazyBrowseNodeTests.cs b/clients/dotnet/ZB.MOM.WW.MxGateway.Client.Tests/LazyBrowseNodeTests.cs
index 3a40275..b4d5452 100644
--- a/clients/dotnet/ZB.MOM.WW.MxGateway.Client.Tests/LazyBrowseNodeTests.cs
+++ b/clients/dotnet/ZB.MOM.WW.MxGateway.Client.Tests/LazyBrowseNodeTests.cs
@@ -106,6 +106,8 @@ public sealed class LazyBrowseNodeTests
                 new RpcException(new Status(StatusCode.NotFound, "Parent not found"))));
 
         await Assert.ThrowsAsync<MxGatewayException>(async () => await roots[0].ExpandAsync());
+        Assert.False(roots[0].IsExpanded);
+        Assert.Empty(roots[0].Children);
     }
 
     /// <summary>