protected function assertPageLoaded($uri, $message = null)
{
$status = $this->response->getStatusCode();
try {
$this->assertEquals(200, $status);
} catch (PHPUnitException $e) {
$message = $message ?: "A request to [{$uri}] failed. Received status code [{$status}].";
throw new PHPUnitException($message, null, $this->response->exception);
}
}