Function Test-FolderAccess{
[CmdletBinding()] Param(
    [Parameter(Mandatory=$True)]
    [string]$Path,
    [Parameter(Mandatory=$True)]
    [string]$SamAccountName
)
    Import-Module ActiveDirectory
    (Get-ACL $folder).Access | ForEach-Object{
        $member = $null
        if( $_.IdentityReference -Like "$env:USERDOMAIN\*" ){
            try{ $member = Get-ADGroupMember ($_.IdentityReference -replace "$env:USERDOMAIN\\","") -Recursive }catch{}
        }
        $output = [PSCustomObject]@{
            IdentityReference = $_.IdentityReference;
            IsMemberOfTheADGroup = $member.SamAccountName -contains $SamAccountName
            FileSystemRights = $_.FileSystemRights;
            AccessControlType = $_.AccessControlType;
            IsInherited = $_.IsInherited;
            InheritanceFlags = $_.InheritanceFlags;
            PropagationFlags = $_.PropagationFlags;
        }
        Write-Output $output
    }
}

Test-FolderAccess "\\SERVER\SHARE" "USERNAME" | FT -AutoSize