spec\Fenos\Notifynder\Groups\GroupManagerSpec::it_add_a_category_to_a_group_by_id PHP Метод

    public function it_add_a_category_to_a_group_by_id(NotifynderGroupCategoryDB $groupCategoryDB, NotificationGroup $group)
    {
        $group_id = 1;
        $category_id = 2;
        $groupCategoryDB->addCategoryToGroupById($group_id, $category_id)->shouldBeCalled()->willReturn($group);
        $this->addCategoryToGroupById($group_id, $category_id)->shouldReturnAnInstanceOf(NotificationGroup::class);
    }