Create External Help File Test

Tests/Public/External-Help.Tests.ps1

@@ -0,0 +1,10 @@
+$filePath = (Split-Path -Parent $MyInvocation.MyCommand.Path) -replace 'Tests', 'ZertoApiWrapper'
+$publicFiles = Get-ChildItem "$filePath" -File
+
+describe "External Help Present" {
+    foreach ($file in $publicFiles) {
+        it "External Help File Defined" {
+            Get-Content -Path $file.fullName -First 1 | should be "<# .ExternalHelp ./en-us/ZertoApiWrapper-help.xml #>"
+        }
+    }
+}