Fix ServiceManagement test

Author: hyonholee

src/ServiceManagement/Compute/Commands.ServiceManagement.Test/FunctionalTests/PIRTest.cs

@@ -342,12 +342,12 @@ public void AzurePlatformVMImageScenarioTest()
 
         private void SwitchToPublisher()
         {
-            vmPowershellCmdlets.SetDefaultAzureSubscription(publisher);
+            vmPowershellCmdlets.SetDefaultAzureSubscription(publisherSubId);
         }
 
         private void SwitchToNormalUser()
         {
-            vmPowershellCmdlets.SetDefaultAzureSubscription(normaluser);
+            vmPowershellCmdlets.SetDefaultAzureSubscription(normaluserSubId);
         }
 
         private void WaitForReplicationComplete(string imageName)

src/ServiceManagement/Compute/Commands.ServiceManagement.Test/FunctionalTests/ServiceManagementTest.cs

@@ -341,7 +341,7 @@ protected static void ReImportSubscription()
         {
             // Re-import the subscription.
             vmPowershellCmdlets.ImportAzurePublishSettingsFile();
-            vmPowershellCmdlets.SetDefaultAzureSubscription(CredentialHelper.DefaultSubscriptionName);
+            vmPowershellCmdlets.SetDefaultAzureSubscription(defaultAzureSubscription.SubscriptionId);
             vmPowershellCmdlets.SetAzureSubscription(defaultAzureSubscription.SubscriptionId, defaultAzureSubscription.CurrentStorageAccountName);
         }