Update RunInstallationTests.ps1

Author: markcowl

tools/InstallationTests/RunInstallationTests.ps1

@@ -91,7 +91,8 @@ $resourceCommands = @(
   {Get-AzureResourceGroupGalleryTemplate},
   {Get-AzureTag},
   {Get-AzureADUser -UPN $credential.UserName},
-  {Get-AzureRoleAssignment}
+  {Get-AzureRoleAssignment},
+  {Get-AzureRmWebApp}
 )
 
 if ($credential -eq $null)
@@ -158,4 +159,4 @@ Write-Host
 Write-Host "============================================================================================="
 Write-Host
 
-$ErrorActionPreference = "Continue"
+$ErrorActionPreference = "Continue"