Set-EX16DNSRecords.tests.ps1

<#

Author: I.C.A. Strachan
Version:
Version History:

Purpose: Pester script to validate that DNS Zones and Records have been configured

#>

[CmdletBinding()]
Param(
   [string]$fqdn ='domain.local',
   [string[]]$ServerIPAddress= @('192.168.1.4', '192.168.1.5')
)

Import-Module DNSServer -Verbose:$false

Describe "DNS Exchange Configuration Test for $fqdn" {

   $zoneNames = @(
      "autodiscover.$($fqdn)"
      "mail.$($fqdn)"
      "webmail.$($fqdn)"
      "_autodiscover._tcp.$($fqdn)"
   )

   Context 'DNS Zones' {
      
      # Test every zone
      foreach($zoneName in $zoneNames){
         it "Has a zone named: $zoneName" {
                
               Get-DnsServerZone $zoneName | Should Not BeNullOrEmpty
         }
      }
   }

   Context 'DNS Resource records' {

      foreach ($IPAddress in $ServerIPAddress){

        foreach($zoneName in $zoneNames){
            
            It "Has IPAddress $($IPAddress) in zone $($zoneName)"{
                (Get-DnsServerResourceRecord -ZoneName $zoneName | out-string)  | Should Match $IPAddress
            } 
         }
      }
   }
}