function it_saves_associations($registry, AssociationInterface $association1, AssociationInterface $association2, ProductInterface $product1, ProductInterface $product2, GroupInterface $group1, GroupInterface $group2, ObjectManager $manager)
 {
     $registry->getManagerForClass(Argument::any())->willReturn($manager);
     $registry->getManagers()->willReturn([$manager]);
     $association1->getProducts()->willReturn([$product1, $product2]);
     $association1->getGroups()->willReturn([$group1, $group2]);
     $association1->getId()->willReturn(2);
     $association2->getProducts()->willReturn([$product1, $product2]);
     $association2->getGroups()->willReturn([$group1, $group2]);
     $association2->getId()->willReturn(null);
     $manager->persist($association1)->shouldBeCalled();
     $manager->persist($association2)->shouldBeCalled();
     $manager->flush()->shouldBeCalled();
     $this->write([$association1, $association2]);
 }