public function testActivityOwner()
 {
     $user = new User();
     $user->setFirstName('First Name');
     $organization = new Organization();
     $organization->setName('Organization One');
     $activityOwner = new ActivityOwner();
     $activityOwner->setUser($user);
     $activityOwner->setOrganization($organization);
     $activityList = new ActivityList();
     $activityList->addActivityOwner($activityOwner);
     $this->assertCount(1, $activityList->getActivityOwners());
     $firstOwner = $activityList->getActivityOwners()->first();
     $this->assertEquals('First Name', $firstOwner->getUser()->getFirstName());
     $this->assertEquals('Organization One', $firstOwner->getOrganization()->getName());
 }