https://powershell.org/forums/topic/help-with-test-path-in-foreach-loop/

PS_helpcode_001.txt

function Copy-RCSSFile {

<#
.SYNOPSIS
    Copy files from a given path to a remote computer.

.PARAMETER ComputerName
    Target remote computer

.PARAMETER Path
    File path for the local file to be copied

.PARAMETER Destination
    File path for the destination file on the target computer

.PARAMETER DestinationPath
    Destination directory on the target computer
#>

[CmdletBinding()]

param (

    [Parameter( Mandatory=$True, ValueFromPipeline=$True, ValueFromPipelineByPropertyName=$True )
    ]
    [string]$computername,

    [Parameter( Mandatory=$True, ValueFromPipelineByPropertyName=$True )
    ]
    [string]$path,
    
    [Parameter( Mandatory=$True, ValueFromPipelineByPropertyName=$True )
    ]
    [string]$destination,

    [Parameter( ValueFromPipelineByPropertyName=$True )
    ]
    [string]$destinationfolder

) # param

BEGIN {

    # Setting up DestinationFolder
    Write-Verbose "Setting $destinationfolder variable"
    $destinationfolder = "C:\_Code"

} #BEGIN

PROCESS {

    foreach ( $computer in $ComputerName ) {

        # Setting up Session to remote computer
        Write-Verbose "Connecting to $computer to copy items"
        $session = New-PSSession -ComputerName $computer
        
        Write-Verbose "Checking to see if $destinationfolder exists on $computer"

            If (-not (Test-Path -LiteralPath $destinationfolder)) {

                Try {

                    Write-Verbose "Creating $destinationfolder on $computer"
                    New-Item -Path $destinationfolder -ItemType Directory -ErrorAction Stop

                } Catch {

                    Write-Error -Message "Unable to create directory $destinationfolder. Error was: $_" -ErrorAction Stop
                
                }

            } Else {

                Write-Verbose "Directory already exists"
            
            } # If

        Write-Verbose "Copying files to $computer"
        Copy-Item -Path $path -Destination $destination -ToSession $session

        Write-Verbose "Closing $computer session"
        Remove-PSSession -Session $session

    } # foreach

} #PROCESS

END {

} #END

} #function