function it_throws_an_invalid_argument_exception_when_expecte_code_length_is_null(PromotionCouponGeneratorInstructionInterface $instruction)
{
$instruction->getAmount()->willReturn(18);
$instruction->getCodeLength()->willReturn(null);
$this->shouldThrow(\InvalidArgumentException::class)->during('isGenerationPossible', [$instruction]);
$this->shouldThrow(\InvalidArgumentException::class)->during('getPossibleGenerationAmount', [$instruction]);
}
/**
* @param PromotionCouponGeneratorInstructionInterface $instruction
*
* @return int
*
* @throws \InvalidArgumentException
*/
private function calculatePossibleGenerationAmount(PromotionCouponGeneratorInstructionInterface $instruction)
{
$expectedAmount = $instruction->getAmount();
$expectedCodeLength = $instruction->getCodeLength();
Assert::allNotNull([$expectedAmount, $expectedCodeLength], 'Code length or amount cannot be null.');
$generatedAmount = $this->couponRepository->countByCodeLength($expectedCodeLength);
return floor(pow(16, $expectedCodeLength) * $this->ratio - $generatedAmount);
}
function it_does_not_add_violation(ExecutionContextInterface $context, PromotionCouponGeneratorInstructionInterface $instruction, GenerationPolicyInterface $generationPolicy)
{
$constraint = new CouponPossibleGenerationAmount();
$instruction->getAmount()->willReturn(5);
$instruction->getCodeLength()->willReturn(1);
$generationPolicy->isGenerationPossible($instruction)->willReturn(true);
$generationPolicy->getPossibleGenerationAmount($instruction)->shouldNotBeCalled();
$context->addViolation($constraint->message, Argument::any())->shouldNotBeCalled();
$this->validate($instruction, $constraint);
}
function it_throws_an_invalid_argument_exception_when_code_length_is_not_between_one_and_forty(PromotionCouponInterface $promotionCoupon, FactoryInterface $promotionCouponFactory, GenerationPolicyInterface $generationPolicy, PromotionInterface $promotion, PromotionCouponGeneratorInstructionInterface $instruction)
{
$instruction->getAmount()->willReturn(16);
$instruction->getCodeLength()->willReturn(-1);
$generationPolicy->isGenerationPossible($instruction)->willReturn(true);
$promotionCouponFactory->createNew()->willReturn($promotionCoupon);
$this->shouldThrow(\InvalidArgumentException::class)->during('generate', [$promotion, $instruction]);
$instruction->getCodeLength()->willReturn(45);
$this->shouldThrow(\InvalidArgumentException::class)->during('generate', [$promotion, $instruction]);
}
function let(PromotionCouponGeneratorInstructionInterface $instruction, \InvalidArgumentException $previousException)
{
$instruction->getAmount()->willReturn(17);
$instruction->getCodeLength()->willReturn(1);
$this->beConstructedWith($instruction, 0, $previousException);
}
/**
* {@inheritdoc}
*/
public function __construct(PromotionCouponGeneratorInstructionInterface $instruction, $exceptionCode = 0, \Exception $previousException = null)
{
$message = sprintf('Invalid coupon code length or coupons amount. It is not possible to generate %d unique coupons with %d code length', $instruction->getAmount(), $instruction->getCodeLength());
parent::__construct($message, $exceptionCode, $previousException);
}
