Gc\User\Model::setEmail PHP Method

    public function setEmail($userEmail)
    {
        $userEmail = trim($userEmail);
        $validator = new EmailAddress();
        if ($validator->isValid($userEmail)) {
            $userId = $this->getId();
            $select = $this->select(function (Select $select) use($userEmail, $userId) {
                $select->where->equalTo('email', $userEmail);
                if ($userId !== null) {
                    $select->where->notEqualTo('id', $userId);
                }
            });
            $row = $this->fetchRow($select);
            if (empty($row)) {
                $this->setData('email', $userEmail);
                return true;
            }
        }
        return false;
    }

 /**
  * Test
  *
  * @return void
  */
 public function testSetFakeEmail()
 {
     $this->assertFalse($this->object->setEmail('wrong email'));
 }