/**
  * @test
  * @group metadata
  * @group contactperson
  */
 public function presence_of_an_email_address_can_be_tested()
 {
     $emailOne = new EmailAddress('*****@*****.**');
     $emailTwo = new EmailAddress('*****@*****.**');
     $notInList = new EmailAddress('*****@*****.**');
     $list = new EmailAddressList(array($emailOne, $emailTwo));
     $this->assertTrue($list->contains($emailOne));
     $this->assertTrue($list->contains($emailTwo));
     $this->assertFalse($list->contains($notInList));
 }