Payum\Paypal\ExpressCheckout\Nvp\Action\PaymentDetailsStatusAction::execute PHP Method

    public function execute($request)
    {
        RequestNotSupportedException::assertSupports($this, $request);
        $model = ArrayObject::ensureArrayObject($request->getModel());
        foreach (range(0, 9) as $index) {
            if (Api::L_ERRORCODE_PAYMENT_NOT_AUTHORIZED == $model['L_ERRORCODE' . $index]) {
                $request->markCanceled();
                return;
            }
        }
        foreach (range(0, 9) as $index) {
            if ($model['L_ERRORCODE' . $index]) {
                $request->markFailed();
                return;
            }
        }
        if (isset($model['CANCELLED'])) {
            $request->markCanceled();
            return;
        }
        if (false == $model['PAYERID'] && Api::CHECKOUTSTATUS_PAYMENT_ACTION_NOT_INITIATED == $model['CHECKOUTSTATUS']) {
            $request->markPending();
            return;
        }
        //it is possible to set zero amount for create agreement request.
        if ($model['PAYERID'] && Api::CHECKOUTSTATUS_PAYMENT_ACTION_NOT_INITIATED == $model['CHECKOUTSTATUS'] && $model['L_BILLINGTYPE0'] && $model['PAYMENTREQUEST_0_AMT'] == 0) {
            $request->markCaptured();
            return;
        }
        if (false == $model['CHECKOUTSTATUS'] || Api::CHECKOUTSTATUS_PAYMENT_ACTION_NOT_INITIATED == $model['CHECKOUTSTATUS']) {
            $request->markNew();
            return;
        }
        if (Api::CHECKOUTSTATUS_PAYMENT_ACTION_IN_PROGRESS == $model['CHECKOUTSTATUS']) {
            $request->markPending();
            return;
        }
        if (Api::CHECKOUTSTATUS_PAYMENT_ACTION_FAILED == $model['CHECKOUTSTATUS']) {
            $request->markFailed();
            return;
        }
        //todo check all payment statuses.
        if (Api::CHECKOUTSTATUS_PAYMENT_COMPLETED == $model['CHECKOUTSTATUS'] || Api::CHECKOUTSTATUS_PAYMENT_ACTION_COMPLETED == $model['CHECKOUTSTATUS']) {
            $completedCounter = 0;
            $authorizedCounter = 0;
            $voidedCounter = 0;
            $allCounter = 0;
            foreach (range(0, 9) as $index) {
                if (null === ($paymentStatus = $model['PAYMENTREQUEST_' . $index . '_PAYMENTSTATUS'])) {
                    continue;
                }
                $allCounter++;
                $refundStatuses = array(Api::PAYMENTSTATUS_REFUNDED, Api::PAYMENTSTATUS_PARTIALLY_REFUNDED);
                if (in_array($paymentStatus, $refundStatuses)) {
                    $request->markRefunded();
                    return;
                }
                $pendingStatuses = array(Api::PAYMENTSTATUS_IN_PROGRESS, Api::PAYMENTSTATUS_PENDING);
                if (in_array($paymentStatus, $pendingStatuses)) {
                    if (Api::PENDINGREASON_AUTHORIZATION == $model['PAYMENTINFO_' . $index . '_PENDINGREASON']) {
                        $authorizedCounter++;
                    } else {
                        $request->markPending();
                        return;
                    }
                }
                $canceledStatuses = array(Api::PAYMENTSTATUS_VOIDED);
                if (in_array($paymentStatus, $canceledStatuses)) {
                    if (Api::PENDINGREASON_AUTHORIZATION == $model['PAYMENTINFO_' . $index . '_PENDINGREASON']) {
                        $voidedCounter++;
                    }
                }
                $failedStatuses = array(Api::PAYMENTSTATUS_FAILED, Api::PAYMENTSTATUS_EXPIRED, Api::PAYMENTSTATUS_DENIED, Api::PAYMENTSTATUS_CANCELED_REVERSAL);
                if (in_array($paymentStatus, $failedStatuses)) {
                    $request->markFailed();
                    return;
                }
                $completedStatuses = array(Api::PAYMENTSTATUS_COMPLETED, Api::PAYMENTSTATUS_PROCESSED);
                if (in_array($paymentStatus, $completedStatuses)) {
                    $completedCounter++;
                }
            }
            if ($completedCounter === $allCounter) {
                $request->markCaptured();
                return;
            }
            if ($authorizedCounter === $allCounter) {
                $request->markAuthorized();
                return;
            }
            if ($voidedCounter === $allCounter) {
                $request->markCanceled();
                return;
            }
        }
    }

 /**
  * @test
  */
 public function shouldMarkCanceledIfPaymentIsCancelledByUser()
 {
     $action = new PaymentDetailsStatusAction();
     $request = new GetHumanStatus(array('CHECKOUTSTATUS' => Api::CHECKOUTSTATUS_PAYMENT_ACTION_NOT_INITIATED, 'CANCELLED' => true));
     $action->execute($request);
     $this->assertTrue($request->isCanceled());
 }