Added support for PSScriptAnalyzer in Pester tests

Tests/Project.Tests.ps1

@@ -4,32 +4,46 @@ $moduleName = Split-Path $moduleRoot -Leaf
 
 Describe "General project validation: $moduleName" -Tags Build {
 
-    $scripts = Get-ChildItem $projectRoot -Include *.ps1,*.psm1,*.psd1 -Recurse | where fullname -notmatch 'classes'
+    Context "Valid Powershell" {
+        $scripts = Get-ChildItem $projectRoot -Include *.ps1,*.psm1,*.psd1 -Recurse | where fullname -notmatch 'classes'
+        # TestCases are splatted to the script so we need hashtables
+        $testCase = $scripts | Foreach-Object{@{file=$_}}   
 
-    # TestCases are splatted to the script so we need hashtables
-    $testCase = $scripts | Foreach-Object{@{file=$_}}         
-    It "Script <file> should be valid powershell" -TestCases $testCase {
-        param($file)
+        It "Script <file> should be valid powershell" -TestCases $testCase {
+            param($file)
 
-        $file.fullname | Should Exist
+            $file.fullname | Should Exist
 
-        $contents = Get-Content -Path $file.fullname -ErrorAction Stop
-        $errors = $null
-        $null = [System.Management.Automation.PSParser]::Tokenize($contents, [ref]$errors)
-        $errors.Count | Should Be 0
-    }
+            $contents = Get-Content -Path $file.fullname -ErrorAction Stop
+            $errors = $null
+            $null = [System.Management.Automation.PSParser]::Tokenize($contents, [ref]$errors)
+            $errors.Count | Should Be 0
+        }
 
-    It "Classes are valid" {        
-        $classes = Get-ChildItem $projectRoot -Include *.ps1,*.psm1,*.psd1 -Recurse | where fullname -match 'classes'
-        
-        # Must be imported togehter incase they depend on each other
-        $contents = Get-Content -Path $classes.FullName | Out-String
+        It "Classes are valid" {        
+            $classes = Get-ChildItem $projectRoot -Include *.ps1,*.psm1,*.psd1 -Recurse | where fullname -match 'classes'
+            
+            # Must be imported togehter incase they depend on each other
+            $contents = Get-Content -Path $classes.FullName | Out-String
 
-        $errors = $null
-        $null = [System.Management.Automation.PSParser]::Tokenize($contents, [ref]$errors)
-        $errors.Count | Should Be 0
+            $errors = $null
+            $null = [System.Management.Automation.PSParser]::Tokenize($contents, [ref]$errors)
+            $errors.Count | Should Be 0
+        }
     }
     
+    Context "ScriptAnalyzer" {
+
+        $scripts = Get-ChildItem $moduleRoot -Include *.ps1,*.psm1,*.psd1 -Recurse | where fullname -notmatch 'classes'
+        $testCase = $scripts | Foreach-Object{@{file=$_}} 
+
+        it "Script <file> should pass ScriptAnalyzer rules" -TestCases $testCase {
+            param($file)
+
+            $file.fullname | Should Exist 
+            Invoke-ScriptAnalyzer $file| Should BeNullOrEmpty
+        }
+    }
 
     It "Module '$moduleName' can import cleanly" {
         {Import-Module (Join-Path $moduleRoot "$moduleName.psm1") -force } | Should Not Throw