public function testResponseHeaders()
{
$params = new MakeRequestOptions('http://www.example.com');
$params->setNoCache(true);
$headers = array('Content-Type' => 'text/plain');
$this->response->setResponseHeaders($headers);
$this->fetcher->enqueueResponse($this->response);
$result = $this->makeRequest->fetch($this->context, $params);
$response_headers = $result->getResponseHeaders();
$this->assertArrayHasKey('Content-Type', $response_headers);
$this->assertEquals('text/plain', $response_headers['Content-Type']);
}
