Fixing get-help on Linux

test/powershell/engine/HelpSystem.Tests.ps1

@@ -0,0 +1,25 @@
+Describe 'Basic help system tests' -Tags "CI" {
+
+    Context "Validate help content for cmdlets in Microsof.PowerShell.Core" {
+
+        $cmdlets = get-command -module "Microsoft.PowerShell.Core"
+        $cmdletsToSkip = @(
+            "Get-PSHostProcessInfo",
+            "Out-Default",
+            "Register-ArgumentCompleter"
+        )
+
+        foreach ($cmdletName in $cmdlets)
+        {
+            if ($cmdletsToSkip -notcontains $cmdletName)
+            {
+                It "Validate -Description and -Examples sections in help content. Run 'Get-help -name $cmdletName'" {
+
+                    $help = get-help -name $cmdletName
+                    $help.Description | Out-String | Should Match $cmdletName
+                    $help.Examples | Out-String | Should Match $cmdletName
+                }
+            }
+        }
+    }
+}