Added test for ScriptRule parsing crash bugfix

Author: raghushantha

Tests/Engine/CustomizedRule.tests.ps1

@@ -22,6 +22,27 @@ Describe "Test importing customized rules with null return results" {
 }
 
 Describe "Test importing correct customized rules" {
+    
+    Context "Test Get-Help functionality in ScriptRule parsing logic" {
+        It "ScriptRule help section must be correctly processed when Get-Help is called for the first time" {
+            
+            # Force Get-Help to prompt for interactive input to download help using Update-Help
+            # By removing this registry key we force to turn on Get-Help interactivity logic during ScriptRule parsing
+            $null,"Wow6432Node" | ForEach-Object {
+                try
+                {
+                    Remove-ItemProperty -Name "DisablePromptToUpdateHelp" -Path "HKLM:\SOFTWARE\$($_)\Microsoft\PowerShell" -ErrorAction Stop
+                } catch {
+                    #Ignore for cases when tests are running in non-elevated more or registry key does not exist or not accessible
+                }
+            }
+
+            $customizedRulePath = Invoke-ScriptAnalyzer $directory\TestScript.ps1 -CustomizedRulePath $directory\samplerule\samplerule.psm1 | Where-Object {$_.Message -eq $message}
+            $customizedRulePath.Count | Should Be 1
+        }
+       
+    }
+
     Context "Test Get-ScriptAnalyzer with customized rules" {
         It "will show the customized rule" {
             $customizedRulePath = Get-ScriptAnalyzerRule  -CustomizedRulePath $directory\samplerule\samplerule.psm1 | Where-Object {$_.RuleName -eq $measure}