function it_throws_invalid_argument_exception_when_expecte_code_length_is_null(InstructionInterface $instruction)
{
$instruction->getAmount()->willReturn(18);
$instruction->getCodeLength()->willReturn(null);
$this->shouldThrow(\InvalidArgumentException::class)->during('isGenerationPossible', [$instruction]);
$this->shouldThrow(\InvalidArgumentException::class)->during('getPossibleGenerationAmount', [$instruction]);
}
/**
* @param InstructionInterface $instruction
*
* @return int
*/
private function calculatePossibleGenerationAmount(InstructionInterface $instruction)
{
$expectedAmount = $instruction->getAmount();
$expectedCodeLength = $instruction->getCodeLength();
Assert::allNotNull([$expectedAmount, $expectedCodeLength], 'Code length or amount cannot be null.');
$generatedAmount = $this->couponRepository->countCouponsByCodeLength($expectedCodeLength);
return floor(pow(16, $expectedCodeLength) * $this->ratio - $generatedAmount);
}
function it_not_adds_violation(ExecutionContextInterface $context, CouponPossibleGenerationAmount $constraint, InstructionInterface $instruction, GenerationPolicyInterface $generationPolicy)
{
$instruction->getAmount()->willReturn(5);
$instruction->getCodeLength()->willReturn(1);
$generationPolicy->isGenerationPossible($instruction)->willReturn(true);
$generationPolicy->getPossibleGenerationAmount($instruction)->shouldNotBeCalled();
$context->addViolation($constraint->message)->shouldNotBeCalled();
$this->validate($instruction, $constraint);
}
function it_throws_invalid_argument_exception_when_code_length_is_not_between_one_and_forty(CouponInterface $coupon, FactoryInterface $couponFactory, GenerationPolicyInterface $generationPolicy, PromotionInterface $promotion, InstructionInterface $instruction)
{
$instruction->getAmount()->willReturn(16);
$instruction->getCodeLength()->willReturn(-1);
$generationPolicy->isGenerationPossible($instruction)->willReturn(true);
$couponFactory->createNew()->willReturn($coupon);
$this->shouldThrow(\InvalidArgumentException::class)->during('generate', [$promotion, $instruction]);
$instruction->getCodeLength()->willReturn(45);
$this->shouldThrow(\InvalidArgumentException::class)->during('generate', [$promotion, $instruction]);
}
function let(InstructionInterface $instruction, \InvalidArgumentException $previousException)
{
$instruction->getAmount()->willReturn(17);
$instruction->getCodeLength()->willReturn(1);
$this->beConstructedWith($instruction, 0, $previousException);
}
/**
* {@inheritdoc}
*/
public function __construct(InstructionInterface $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);
}
