<?php

declare(strict_types=1);

namespace Tests\Unit\Domain\Models\ValueObjects;

use Domain\Models\ValueObjects\WarningThresholdQuantity;

covers(WarningThresholdQuantity::class);

describe('warning threshold quantity', function (): void {
    it('creates a valid warning threshold quantity', function (): void {
        // GIVEN
        $value = 10;

        // WHEN
        $threshold = new WarningThresholdQuantity($value);

        // THEN
        expect($threshold)->toBeInstanceOf(WarningThresholdQuantity::class)
            ->and($threshold->value)->toBe($value);
    });

    it('accepts a zero value, meaning no warning', function (): void {
        // WHEN
        $threshold = new WarningThresholdQuantity(0);

        // THEN
        expect($threshold->value)->toBe(0);
    });

    it('rejects a negative value', function (): void {
        // WHEN
        $action = fn (): WarningThresholdQuantity => new WarningThresholdQuantity(-1);

        // THEN
        expect($action)->toThrow(\DomainException::class, 'Warning threshold quantity cannot be negative.');
    });
});