Backup Item fixes and test

Author: dragonfly91

src/ResourceManager/RecoveryServices.Backup/Cmdlets/Item/BackupAzureRmRecoveryServicesItem.cs

@@ -33,7 +33,7 @@ public class BackupAzureRmRecoveryServicesItem : RecoveryServicesBackupCmdletBas
         [ValidateNotNullOrEmpty]
         public AzureRmRecoveryServicesItemBase Item { get; set; }
 
-        [Parameter(Mandatory = true, HelpMessage = ParamHelpMsg.Item.ExpiryDate, ValueFromPipeline = false)]
+        [Parameter(Mandatory = false, HelpMessage = ParamHelpMsg.Item.ExpiryDate, ValueFromPipeline = false)]
         [ValidateNotNullOrEmpty]
         public DateTime ExpiryDate { get; set; }
 

src/ResourceManager/RecoveryServices.Backup/Commands.RecoveryServices.Backup.Providers/PsBackupProviderManager.cs

@@ -42,11 +42,6 @@ public IPsBackupProvider GetProviderInstance(ContainerType containerType, Backup
             switch (containerType)
             {
                 case ContainerType.AzureVM:
-                    if (backupManagementType.HasValue && backupManagementType != BackupManagementType.AzureVM)
-                    {
-                        throw new ArgumentException("BackupManagementType is not expected for ContainerType: " +
-                                                     containerType.ToString());
-                    }
                     providerType = PsBackupProviderTypes.IaasVm;
                     break;
                 case ContainerType.Windows:

src/ResourceManager/RecoveryServices.Backup/Commands.RecoveryServices.Backup.Test/ScenarioTests/IaasVm/ItemTests.cs

@@ -31,5 +31,11 @@ public void TestGetItemScenario()
         {
             this.RunPowerShellTest(PsBackupProviderTypes.IaasVm.ToString(), "Test-GetItemScenario");
         }
+
+        [Fact]
+        public void TestBackupItemScenario()
+        {
+            this.RunPowerShellTest(PsBackupProviderTypes.IaasVm.ToString(), "Test-BackupItemScenario");
+        }
     }
 }

src/ResourceManager/RecoveryServices.Backup/Commands.RecoveryServices.Backup.Test/ScenarioTests/IaasVm/ItemTests.ps1

@@ -22,4 +22,18 @@ function Test-GetItemScenario
 
 	$item = Get-AzureRmRecoveryServicesItem -Container $namedContainer -WorkloadType "AzureVM";
 	echo $item.Name;
+}
+
+function Test-BackupItemScenario
+{
+	$vault = Get-AzureRmRecoveryServicesVault -ResourceGroupName "pstestrg" -Name "pstestrsvault";
+	Set-AzureRmRecoveryServicesVaultContext -Vault $vault;
+	
+	$namedContainer = Get-AzureRmRecoveryServicesContainer -ContainerType "AzureVM" -Status "Registered" -Name "pstestv2vm1";
+	Assert-AreEqual $namedContainer.FriendlyName "pstestv2vm1";
+
+	$item = Get-AzureRmRecoveryServicesItem -Container $namedContainer -WorkloadType "AzureVM";
+	echo $item.Name;
+
+	Backup-AzureRmRecoveryServicesItem -Item $item;
 }