Update GetAzureRmRecoveryServicesBackupSchedulePolicyObject to defa…

…ult the `PolicySubType` to `Enhanced` for AzureVM. (Azure#27039)

* Set default policy for IaaSVM as enhanced policy

* update Test-AzureVMEnhancedPolicyAsDefault

* update in logic and readme

* Update in readme

src/RecoveryServices/RecoveryServices.Backup.Test/ScenarioTests/IaasVm/PolicyTests.cs

@@ -88,5 +88,17 @@ public void TestAzureVMCrashconsistentPolicy()
                 "Test-AzureVMCrashconsistentPolicy"
             );
         }
+
+        [Fact]
+        [Trait(Category.AcceptanceType, Category.CheckIn)]
+        [Trait(TestConstants.Workload, TestConstants.AzureVM)]
+        public void TestAzureVMEnhancedPolicyAsDefaultPolicy()
+        {
+            TestRunner.RunTestScript(
+                $"Import-Module {_IaasVmcommonModule.AsAbsoluteLocation()}",
+                $"Import-Module {_IaasVmtestModule.AsAbsoluteLocation()}",
+                "Test-AzureVMEnhancedPolicyAsDefault"
+            );
+        }
     }    
 }

src/RecoveryServices/RecoveryServices.Backup.Test/ScenarioTests/IaasVm/PolicyTests.ps1

@@ -343,4 +343,54 @@ function Test-AzureVMPolicy
 		# Cleanup
 		Cleanup-ResourceGroup $resourceGroupName
 	}
+}
+
+function Test-AzureVMEnhancedPolicyAsDefault
+{ 
+	try
+    {
+		$resourceGroupName = "sgholapCZRTesting"
+		$vaultName = "sgholapZRSTestingVault"
+		$owner = "sgholap"
+		$AzureVMPolicyName = "AzureVMPolicy"
+		$AzureFilesPolicyName = "AzureFilesPolicy"
+
+		$vault = Get-AzRecoveryServicesVault -ResourceGroupName $resourceGroupName -Name $vaultName
+
+		$azureVMSchedulePolicy = Get-AzRecoveryServicesBackupSchedulePolicyObject -WorkloadType AzureVM -BackupManagementType AzureVM -ScheduleRunFrequency Weekly
+		Assert-NotNull $azureVMSchedulePolicy
+
+		$azureVMRetentionPolicy = Get-AzRecoveryServicesBackupRetentionPolicyObject -WorkloadType AzureVM -BackupManagementType AzureVM -ScheduleRunFrequency Weekly
+		Assert-NotNull $azureVMRetentionPolicy
+
+		$azureVMPolicy = New-AzRecoveryServicesBackupProtectionPolicy -Name $AzureVMPolicyName -WorkloadType AzureVM -BackupManagementType AzureVM -RetentionPolicy $azureVMRetentionPolicy -SchedulePolicy $azureVMSchedulePolicy -VaultId $vault.ID
+
+		Assert-NotNull $azureVMPolicy
+		Assert-AreEqual $azureVMPolicy.Name $AzureVMPolicyName
+		# Default policy type for AzureVM should be Enhanced
+		Assert-AreEqual $azureVMPolicy.PolicySubType "Enhanced"
+
+		$azureFilesSchedulePolicy = Get-AzRecoveryServicesBackupSchedulePolicyObject -WorkloadType AzureFiles 
+		Assert-NotNull $azureVMSchedulePolicy
+
+		$azureFilesRetentionPolicy = Get-AzRecoveryServicesBackupRetentionPolicyObject -WorkloadType AzureFiles
+		Assert-NotNull $azureVMRetentionPolicy
+
+		$azureFilesPolicy = New-AzRecoveryServicesBackupProtectionPolicy -Name $AzureFilesPolicyName -WorkloadType AzureFiles -RetentionPolicy $azureFilesRetentionPolicy -SchedulePolicy $azureFilesSchedulePolicy -VaultId $vault.ID
+
+		Assert-NotNull $azureFilesPolicy
+		Assert-AreEqual $azureFilesPolicy.Name $AzureFilesPolicyName
+		# Default policy type for AzureFiles should be Standard
+		Assert-AreNotEqual $azureFilesPolicy.PolicySubType "Enhanced"
+    }
+	finally
+	{
+		# Cleanup		
+		# Delete policy
+		$policy = Get-AzRecoveryServicesBackupProtectionPolicy -VaultId $vault.ID -Name $AzureVMPolicyName
+		Remove-AzRecoveryServicesBackupProtectionPolicy -VaultId $vault.ID -Policy $policy -Force
+
+		$policy = Get-AzRecoveryServicesBackupProtectionPolicy -VaultId $vault.ID -Name $AzureFilesPolicyName
+		Remove-AzRecoveryServicesBackupProtectionPolicy -VaultId $vault.ID -Policy $policy -Force
+	}
 }