/**
* @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_returns_possible_generation_amount(InstructionInterface $instruction, CouponRepositoryInterface $couponRepository)
{
$instruction->getAmount()->willReturn(17);
$instruction->getCodeLength()->willReturn(1);
$couponRepository->countCouponsByCodeLength(1)->willReturn(1);
$this->isGenerationPossible($instruction)->shouldReturn(false);
$this->getPossibleGenerationAmount($instruction)->shouldReturn(7.0);
}
