40 lines
1.2 KiB
PHP
40 lines
1.2 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Tests\Unit\Domain\Models\ValueObjects\Coupon;
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use Domain\Models\ValueObjects\Coupon\CouponQuantity;
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covers(CouponQuantity::class);
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describe('coupon quantity', function (): void {
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$quantity = 10;
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$zeroQuantity = 0;
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$negativeQuantity = -1;
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it('creates a valid coupon quantity', function () use ($quantity): void {
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// GIVEN / WHEN
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$couponQuantity = new CouponQuantity($quantity);
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// THEN
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expect($couponQuantity)->toBeInstanceOf(CouponQuantity::class)
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->and($couponQuantity->value)->toBe($quantity);
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});
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it('rejects a quantity of zero', function () use ($zeroQuantity): void {
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// WHEN
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$action = fn (): CouponQuantity => new CouponQuantity($zeroQuantity);
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// THEN
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expect($action)->toThrow(\DomainException::class, 'CouponQuantity quantity must be positive.');
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});
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it('rejects a negative quantity', function () use ($negativeQuantity): void {
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// WHEN
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$action = fn (): CouponQuantity => new CouponQuantity($negativeQuantity);
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// THEN
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expect($action)->toThrow(\DomainException::class, 'CouponQuantity quantity must be positive.');
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});
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});
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