/**
* @param string $username
* @param string $password
*/
public function login($username, $password)
{
$loginForm = new LoginForm();
$this->actor->fillField('input[name="' . $loginForm->formName() . '[username]"]', $username);
$this->actor->fillField('input[name="' . $loginForm->formName() . '[password]"]', $password);
$this->actor->click('login-button');
}
