function it_calculates_average_price(ReviewableInterface $reviewable, ReviewInterface $review1, ReviewInterface $review2)
 {
     $reviewable->getReviews()->willReturn([$review1, $review2]);
     $review1->getStatus()->willReturn(ReviewInterface::STATUS_ACCEPTED);
     $review2->getStatus()->willReturn(ReviewInterface::STATUS_ACCEPTED);
     $review1->getRating()->willReturn(4);
     $review2->getRating()->willReturn(5);
     $this->calculate($reviewable)->shouldReturn(4.5);
 }