Make sure default first in list

Author: azdevxps

src/ResourceManager/Common/Commands.ResourceManager.Common/TabCompleter/ResourceGroupCompleter.cs

@@ -48,6 +48,7 @@ protected static IList<String> ResourceGroupNames
                             instance.AuthenticationFactory.GetServiceClientCredentials(context, AzureEnvironment.Endpoint.ResourceManager),
                             instance.ClientFactory.GetCustomHandlers());
                         client.SubscriptionId = context.Subscription.Id;
+                        // Retrieve only the first page of ResourceGroups to display to the user
                         var resourceGroups = client.ResourceGroups.ListAsync();
                         if (resourceGroups.Wait(TimeSpan.FromSeconds(5)))
                         {
@@ -112,9 +113,9 @@ public static string[] GetResourceGroups(IList<string> resourceGroupNames, strin
             {
                 if (resourceGroupNames.Contains(defaultResourceGroup))
                 {
-                    resourceGroupNames.Remove(defaultResourceGroup);
-                    resourceGroupNames.Insert(0, defaultResourceGroup);
+                    resourceGroupNames.Remove(defaultResourceGroup);    
                 }
+                resourceGroupNames.Insert(0, defaultResourceGroup);
             }
             return resourceGroupNames.ToArray();
         }

src/ResourceManager/Profile/Commands.Profile.Test/ResourcGroupCompleterUnitTests.cs

@@ -53,7 +53,8 @@ public void OneResourceGroupWithInvalidDefault()
         {
             IList<string> resourceGroupsReturned = new List<string>();
             resourceGroupsReturned.Add("test1");
-            Assert.Collection(ResourceGroupCompleterAttribute.GetResourceGroups(resourceGroupsReturned, "invalidDefault"), e1 => Assert.Equal("test1", e1));
+            Assert.Collection(ResourceGroupCompleterAttribute.GetResourceGroups(resourceGroupsReturned, "defaultOutOfPage"), e1 => Assert.Equal("defaultOutOfPage", e1),
+                e2 => Assert.Equal("test1", e2));
         }
 
         [Fact]