updated pester tests and uncluded new ones for CIS cmdlets

Pester/Test Disconnect-VIServer to VC.Tests.ps1

@@ -0,0 +1,20 @@
+<#
+Script name: Test Disconnect-VIServer to VC.ps1
+Created on: 04/20/2017
+Author: Alan Renouf, @alanrenouf
+Description: The purpose of this pester test is to ensure the Disconnect-VIServer cmdlet disconnects
+Dependencies: Pester Module
+Example run:
+
+Invoke-Pester -Script @{ Path = '.\Test Disconnect-VISServer to VC.ps1'; Parameters = @{ VCNAME="VC01.local" } }
+
+#>
+
+$VCNAME = $Parameters.Get_Item("VCNAME")
+
+Describe "Disconnect-VIServer Tests" {
+    It "Disconnect from $VCName" {
+        Disconnect-VIServer $VCName -confirm:$false
+        $Global:DefaultVIServer | Should Be $null
+    }
+}