setHandlerIdentifier example

static::expectException(PaymentException::class);
        static::expectExceptionMessage('The payment method foo could not be found.');

        $processor->processRecurring('foo', Context::createDefaultContext());
    }

    public function testPaymentHandlerNotFoundException(): void
    {
        $paymentMethod = new PaymentMethodEntity();
        $paymentMethod->setId('foo');
        $paymentMethod->setHandlerIdentifier('foo_recurring_handler');

        $transaction = new OrderTransactionEntity();
        $transaction->setId('foo');
        $transaction->setStateId('initial_state_id');
        $transaction->setPaymentMethodId('foo');
        $transaction->setPaymentMethod($paymentMethod);

        $transactions = new OrderTransactionCollection([$transaction]);

        $order = new OrderEntity();
        $order->setId('foo');