final class CheckoutStepsExtensionTest extends IntegrationTestCase
{
    /**
     * The directory with test cases
     */
    protected function getFixturesDir(): string
    {
        return __DIR__ . '/Fixtures';
    }
    
    /**
     * Unit tested extensions
     */
    protected function getExtensions(): array
    {
        return [new CheckoutStepsExtension()];
    }
    
    /**
     * Called functions expects an "Order" object.
     * Lets create a helper function will will return an Order.
     */
    protected function getTwigFunctions(): array
    {
        return [
            new TwigFunction('get_test_order', function (): OrderInterface {
                return new Order();
            }),
        ];
    }

    /**
     * Since the runtime depends on its dependencies when created
     * we need to register custom runtime loader which will spawn called runtime.
     * For the sake of simplicity, we will mock the actual helper.
     */
    protected function getRuntimeLoaders(): array
    {
        return [new FactoryRuntimeLoader([
            CheckoutStepsHelperRuntime::class => function (): CheckoutStepsHelperRuntime {
                $helper = $this->prophesize(CheckoutStepsHelper::class);
                $helper->isShippingRequired(Argument::type(Order::class))->willReturn(true);
                $helper->isPaymentRequired(Argument::type(Order::class))->willReturn(true);

                return new CheckoutStepsHelperRuntime($helper->reveal());
            }
        ])];
    }
}