<?php

declare(strict_types=1);

namespace Tests\Unit\Domain\Models\ValueObjects\Coupon;

use Domain\Models\ValueObjects\Coupon\CouponMovement;

covers(CouponMovement::class);

describe('coupon movement', function (): void {
    it('keeps the given quantity and creation date', function (): void {
        // GIVEN
        $quantity  = 10;
        $createdAt = new \DateTimeImmutable('2026-01-01 12:00:00');

        // WHEN
        $movement = new CouponMovement($quantity, $createdAt);

        // THEN
        expect($movement->quantity)->toBe($quantity)
            ->and($movement->createdAt)->toBe($createdAt);
    });

    it('defaults the creation date to now', function (): void {
        // GIVEN
        $before = new \DateTimeImmutable();

        // WHEN
        $movement = new CouponMovement(5);

        // THEN
        $after = new \DateTimeImmutable();

        expect($movement->createdAt)->toBeInstanceOf(\DateTimeImmutable::class)
            ->and($movement->createdAt >= $before)->toBeTrue()
            ->and($movement->createdAt <= $after)->toBeTrue();
    });

    it('accepts a negative quantity', function (): void {
        // GIVEN / WHEN
        $movement = new CouponMovement(-3);

        // THEN
        expect($movement->quantity)->toBe(-3);
    });
});