public function testSendEmail() { $this->container['httpClient']->expects($this->once())->method('postFormAsync')->with('https://api.sendgrid.com/api/mail.send.json', $this->anything(), $this->anything()); $pm = new EmailHandler($this->container); $pm->sendEmail('test@localhost', 'Me', 'Test', 'Content', 'Bob'); }