ldc-mesbr-app/tests/Unit/Domain/Models/Entities/StockTest.php

<?php

declare(strict_types=1);

namespace Tests\Unit\Domain\Models\Entities;

use Domain\Models\Entities\Stock;
use Domain\Models\ValueObjects\Actor\ActorId;
use Domain\Models\ValueObjects\Campaign\CampaignCode;
use Domain\Models\ValueObjects\Coupon\CouponCode;
use Domain\Models\ValueObjects\Stock\StockAdjustment;
use Domain\Models\ValueObjects\Stock\StockAmount;
use Domain\Models\ValueObjects\Stock\StockId;
use Ramsey\Uuid\Uuid;

covers(Stock::class);

describe('stock', function (): void {
    $stockAmount     = new StockAmount(10);
    $campaignCode    = new CampaignCode('AAA01');
    $couponCode      = new CouponCode('AAA01');
    $stockAdjustment = [new StockAdjustment(5, 'Inventory correction', ActorId::generate())];

    it('hydrates a stock', function () use ($stockAmount, $campaignCode, $couponCode, $stockAdjustment): void {
        // GIVEN
        $id = StockId::generate();

        // WHEN
        $stock = Stock::hydrate(
            $id,
            $stockAmount,
            $campaignCode,
            $couponCode,
            $stockAdjustment,
        );

        // THEN
        expect($stock->id())->toBe($id)
            ->and($stock->stockAmount)->toBe($stockAmount)
            ->and($stock->campaignCode)->toBe($campaignCode)
            ->and($stock->couponCode)->toBe($couponCode)
            ->and($stock->stockAdjustment)->toBe($stockAdjustment)
            ->and($stock->updatedAt)->toBeNull()
            ->and($stock->updatedAt())->toBeNull();
    });

    it('hydrates a stock with several stock adjustments', function () use ($stockAmount, $campaignCode, $couponCode): void {
        // GIVEN
        $id                 = StockId::generate();
        $severalAdjustments = [
            new StockAdjustment(5, 'Inventory correction', ActorId::generate()),
            new StockAdjustment(10, 'Inventory correction', ActorId::generate()),
        ];

        // WHEN
        $stock = Stock::hydrate(
            $id,
            $stockAmount,
            $campaignCode,
            $couponCode,
            $severalAdjustments,
        );

        // THEN
        expect($stock->id())->toBe($id)
            ->and($stock->stockAmount)->toBe($stockAmount)
            ->and($stock->campaignCode)->toBe($campaignCode)
            ->and($stock->couponCode)->toBe($couponCode)
            ->and($stock->stockAdjustment)->toBe($severalAdjustments)
            ->and($stock->updatedAt)->toBeNull()
            ->and($stock->updatedAt())->toBeNull();
    });

    it('hydrates a stock without stock adjustement', function () use ($stockAmount, $campaignCode, $couponCode): void {
        // GIVEN
        $id = StockId::generate();

        // WHEN
        $stock = Stock::hydrate(
            $id,
            $stockAmount,
            $campaignCode,
            $couponCode,
        );

        // THEN
        expect($stock->id())->toBe($id)
            ->and($stock->stockAmount)->toBe($stockAmount)
            ->and($stock->campaignCode)->toBe($campaignCode)
            ->and($stock->couponCode)->toBe($couponCode)
            ->and($stock->stockAdjustment)->toBe([])
            ->and($stock->updatedAt)->toBeNull()
            ->and($stock->updatedAt())->toBeNull();
    });

    it('rejects a stock with a non-stock-adjustment element', function () use ($stockAmount, $campaignCode, $couponCode): void {
        // GIVEN
        $id                = StockId::generate();
        $invalidAdjustment = [new StockAmount(5)];

        // WHEN / THEN
        expect(fn (): Stock => Stock::hydrate(
            $id,
            $stockAmount,
            $campaignCode,
            $couponCode,
            $invalidAdjustment,
        ))->toThrow(\DomainException::class, 'Stock adjustment must be StockAdjustment instances.');
    });

    it('hydrates a stock with an explicit updatedAt date', function () use ($stockAmount, $campaignCode, $couponCode, $stockAdjustment): void {
        // GIVEN
        $updatedAt = new \DateTimeImmutable('2026-06-15 12:00:00', new \DateTimeZone('UTC'));

        // WHEN
        $stock = Stock::hydrate(
            StockId::generate(),
            $stockAmount,
            $campaignCode,
            $couponCode,
            $stockAdjustment,
            $updatedAt,
        );

        // THEN
        expect($stock->updatedAt)->toBe($updatedAt)
            ->and($stock->updatedAt())->toBe($updatedAt);
    });

    it('returns the creation date extracted from the id', function () use ($stockAmount, $campaignCode, $couponCode, $stockAdjustment): void {
        // GIVEN
        $expected = new \DateTimeImmutable('2024-06-15 12:34:56.789000', new \DateTimeZone('UTC'));
        $id       = new StockId(Uuid::uuid7($expected));
        $stock    = Stock::hydrate(
            $id,
            $stockAmount,
            $campaignCode,
            $couponCode,
            $stockAdjustment
        );

        // WHEN
        $result = $stock->createdAt();

        // THEN
        expect($result->format('Y-m-d H:i:s.v'))->toBe($expected->format('Y-m-d H:i:s.v'));
    });
});