PaymentMethodDefinition example

public function testFormatHandlerIdentifier(): void
    {
        $paymentMethods = [
            $this->getPaymentMethod(),
            $this->getPaymentMethod(AsynchronousPaymentHandlerInterface::class),
            $this->getPaymentMethod(RefundPaymentHandlerInterface::class),
            $this->getPaymentMethod(PreparedPaymentHandlerInterface::class),
            $this->getPaymentMethod(RecurringPaymentHandlerInterface::class),
        ];

        $event = new EntityLoadedEvent(
            new PaymentMethodDefinition(),
            $paymentMethods,
            Context::createDefaultContext()
        );

        $subscriber = new PaymentHandlerIdentifierSubscriber();
        $subscriber->formatHandlerIdentifier($event);

        /** @var array<PaymentMethodEntity> $methods */
        $methods = $event->getEntities();

        static::assertContainsOnly(PaymentMethodEntity::class, $methods);