diff --git a/OpenSim/Framework/Communications/Tests/Cache/UserProfileCacheServiceTests.cs b/OpenSim/Framework/Communications/Tests/Cache/UserProfileCacheServiceTests.cs
index 68303b044e..c7f3bfc7b1 100644
--- a/OpenSim/Framework/Communications/Tests/Cache/UserProfileCacheServiceTests.cs
+++ b/OpenSim/Framework/Communications/Tests/Cache/UserProfileCacheServiceTests.cs
@@ -86,9 +86,11 @@ namespace OpenSim.Framework.Communications.Tests
             
             TestCommunicationsManager commsManager = new TestCommunicationsManager();
             UserProfileCacheService userCacheService = commsManager.UserProfileCacheService;
+            IUserDataPlugin userDataPlugin = commsManager.UserDataPlugin;
             
             // Check that we can't update info before it exists
             Assert.That(userCacheService.UpdateProfile(newProfile), Is.False);
+            Assert.That(userDataPlugin.GetUserByUUID(userId), Is.Null);
             
             // Check that we can update a profile once it exists
             LocalUserServices lus = (LocalUserServices)commsManager.UserService;           
@@ -97,6 +99,7 @@ namespace OpenSim.Framework.Communications.Tests
             Assert.That(userCacheService.UpdateProfile(newProfile), Is.True);
             UserProfileData retrievedProfile = userCacheService.GetUserDetails(userId).UserProfile;
             Assert.That(retrievedProfile.SurName, Is.EqualTo(newLastName));
+            Assert.That(userDataPlugin.GetUserByUUID(userId).SurName, Is.EqualTo(newLastName));
         }
 
         [Test]