public function testSetCc()
 {
     $email = new SendGrid\Email();
     $email->setCc('*****@*****.**');
     $email->setCc('*****@*****.**');
     $this->assertEquals(1, count($email->getCcs()));
     $cc_list = $email->getCcs();
     $this->assertEquals('*****@*****.**', $cc_list[0]);
 }