param([Parameter(Mandatory = $true)][string]$ConfigPath)

$ErrorActionPreference = 'Stop'
. (Join-Path $PSScriptRoot 'mail-common.ps1')
$context = Get-MailContext -ConfigPath $ConfigPath

foreach ($testNumber in 1, 2) {
    $synthetic = [guid]::NewGuid().ToString('N')
    $password = ConvertTo-SecureString -String $synthetic -AsPlainText -Force
    try {
        Save-SmtpPassword -Context $context -Password $password
        $loaded = Load-SmtpPassword -Context $context
        try {
            $credential = New-Object System.Net.NetworkCredential -ArgumentList @('test', $loaded)
            if ($credential.Password -cne $synthetic) { throw 'Protected password round trip failed' }
        }
        finally {
            $loaded.Dispose()
        }
    }
    finally {
        $password.Dispose()
    }
}
Write-Output 'DPAPI password save, load, and rotation passed'