private function checkNoProxyForHost($url, $noProxy, $assertUseProxy)
{
$f = new Handler\CurlFactory(3);
$f->create(new Psr7\Request('GET', $url), ['proxy' => ['http' => 'http://bar.com', 'https' => 'https://t', 'no' => $noProxy]]);
if ($assertUseProxy) {
$this->assertArrayHasKey(CURLOPT_PROXY, $_SERVER['_curl']);
} else {
$this->assertArrayNotHasKey(CURLOPT_PROXY, $_SERVER['_curl']);
}
}