update single pass test

Author: ejarvi

src/ResourceManager/Compute/Commands.Compute.Test/ScenarioTests/VirtualMachineExtensionTests.cs

@@ -116,7 +116,7 @@ public void TestAzureDiskEncryptionExtension()
         }
 
         [Fact(Skip = "TODO: only works for live mode due to key vault dependency")]
-        [Trait(Category.AcceptanceType, Category.CheckIn)]
+        [Trait(Category.RunType, Category.LiveOnly)]
         public void TestAzureDiskEncryptionExtensionSinglePass()
         {
             ComputeTestController.NewInstance.RunPsTest("Test-AzureDiskEncryptionExtensionSinglePass");

src/ResourceManager/Compute/Commands.Compute.Test/ScenarioTests/VirtualMachineExtensionTests.ps1

@@ -1052,7 +1052,7 @@ function Test-AzureDiskEncryptionExtensionSinglePass
 		$status = Get-AzureRmVmDiskEncryptionStatus -ResourceGroupName $vm.ResourceGroupName -VMName $vm.Name
 		Assert-NotNull $status
 		Assert-AreEqual $status.OsVolumeEncrypted Encrypted
-		Assert-AreEqual $status.DataVolumesEncrypted NotEncrypted
+		Assert-AreEqual $status.DataVolumesEncrypted Unknown
 
 		# verify encryption settings 
 		$settings = $status.OsVolumeEncryptionSettings