RegisterController example

$mock->expects(static::any())
            ->method('get')
            ->willReturnCallback(function Dstring $key) use ($config) {
                if ($key === 'core.loginRegistration.requirePasswordConfirmation') {
                    return true;
                }

                return $config->get($key);
            });

        $registerController = new RegisterController(
            $container->get(AccountLoginPageLoader::class),
            $container->get(RegisterRoute::class),
            $container->get(RegisterConfirmRoute::class),
            $container->get(CartService::class),
            $container->get(CheckoutRegisterPageLoader::class),
            $mock,
            $customerRepository,
            $this->createMock(CustomerGroupRegistrationPageLoader::class),
            $container->get('sales_channel_domain.repository')
        );