/**
* perform a login
*
* @param string $username Username
* @param string $password Password
*
* @return void
*/
public function login($username, $password)
{
$this->_selenium->url($this->_config->getLoginURL());
$usernameField = $this->_selenium->byId($this->_txtUsername);
$usernameField->value($username);
$passwordField = $this->_selenium->byId($this->_txtPassword);
$passwordField->value($password);
$this->_selenium->byId($this->_btnLogin)->click();
}
