<?php

declare(strict_types=1);

namespace App\Tests\Form\DataTransformer;

use App\Form\DataTransformer\RoomSelectionToIdTransformer;
use App\Form\Model\RoomSelectionDto;
use PHPUnit\Framework\TestCase;
use Symfony\Component\Form\Exception\TransformationFailedException;

class RoomSelectionToIdTransformerTest extends TestCase
{
    public function testReverseTransformAcceptsRoomSelectionDto(): void
    {
        $roomSelection = new RoomSelectionDto();
        $roomSelection->id = 7;
        $roomSelection->label = 'Doppelzimmer';

        $transformer = new RoomSelectionToIdTransformer([$roomSelection]);

        self::assertSame(7, $transformer->reverseTransform($roomSelection));
    }

    public function testReverseTransformReturnsNullForEmptyValues(): void
    {
        $transformer = new RoomSelectionToIdTransformer([]);

        self::assertNull($transformer->reverseTransform(null));
        self::assertNull($transformer->reverseTransform(''));
    }

    public function testReverseTransformRejectsInvalidValues(): void
    {
        $transformer = new RoomSelectionToIdTransformer([]);

        $this->expectException(TransformationFailedException::class);

        $transformer->reverseTransform('12');
    }

    public function testTransformReturnsMatchingRoomSelectionDto(): void
    {
        $roomSelection = new RoomSelectionDto();
        $roomSelection->id = 7;
        $roomSelection->label = 'Doppelzimmer';

        $transformer = new RoomSelectionToIdTransformer([$roomSelection]);

        self::assertSame($roomSelection, $transformer->transform(7));
    }
}