Test-ComputerSecureChannelPSSession.ps1

function Test-ComputerSecureChannelPSSession
{
    [CmdletBinding(SupportsShouldProcess = $true, ConfirmImpact = 'Low')]
    param
    (
        [Parameter(Mandatory = $true, ValueFromPipelineByPropertyName = $true, Position = 0)]
        [ValidateNotNullOrEmpty()]
        [string]$ComputerName,

        [Parameter(Mandatory = $false, Position = 1)]
        [ValidateNotNullOrEmpty()]
        [Alias("LdapServer")]
        [string]$Server,

        [Parameter(Mandatory = $false, Position = 2)]
        [switch]$Repair,

        [Parameter(Mandatory = $true, Position = 3)]
        [ValidateNotNullOrEmpty()]
        [System.Management.Automation.PSCredential]
        [System.Management.Automation.CredentialAttribute()]
        [pscredential]$DomainCredential,

        [Parameter(Mandatory = $true, Position = 4)]
        [ValidateNotNullOrEmpty()]
        [System.Management.Automation.PSCredential]
        [System.Management.Automation.CredentialAttribute()]
        [pscredential]$LocalCredential
    )
    begin
    {
		$winRM = Get-Service -Name WinRM
        if ($winRM.Status -ne 'Running')
        {
            throw "WinRM service on $env:computername was $($winRM.Status).  Please start service so WSMan Trusted hosts can be validated prior to Invoke-Command."
        }

        try
        {
            Test-NetConnection -ComputerName $ComputerName -CommonTCPPort WINRM -InformationLevel Quiet -ErrorAction Stop | Out-Null
        }
        catch
        {
            throw "WinRM could not be contacted on $ComputerName, please resolve before continuing."
        }
            
        if ($PSBoundParameters.ContainsKey('Server'))
        {	
            try
            {
                Resolve-DnsName -Name "$LdapServer" -ErrorAction Stop | Out-Null
            }
            catch
            {
                throw "Could not resolve Domain Controller $LdapServer, please make sure the domain controller is valid."
            }
        }
    }
    process
    {
        $testComputerSecureChannelParams = @{
            'Credential' = $DomainCredential
        }

        if ($PSBoundParameters.ContainsKey('Server'))
        {
            $testComputerSecureChannelParams.Add('Server', $LdapServer)
        }

        if ($PSBoundParameters.ContainsKey('Repair'))
        {
            $testComputerSecureChannelParams.Add('Repair', $true)
        }

        if ($PSCmdlet.ShouldProcess("$ComputerName, Testing machine to domain trust for, $fqdn"))
        {
            Invoke-Command -ComputerName $ComputerName -Credential $LocalCredential -ScriptBlock {Test-ComputerSecureChannel @using:testComputerSecureChannelParams} -ErrorAction Stop
        }
    }
}