/**
* Perform a request and return a promise object (an object
* implementing then method)
*
* @param RequestInterface $request
* @param array $options
*
* @return object|P\PromiseInterface
*/
public function send(RequestInterface $request, array $options = [])
{
$request = $this->preRequest($request, $options);
$promise = $this->transport->exec($request)->then(function (ResponseInterface $response) use($request, $options, &$promise) {
$event = $this->responseEvent($request, $response, $options);
$response = $event->getResponse();
if (!$this->isResponseOK($response)) {
return P\rejection_for($event);
}
return $response;
})->then(null, function (ResponseEvent $event) use($options) {
// options is passed by reference. Use array_merge to ensure
// opts is a copy and not a reference
$opts = array_merge([], $options);
$naReq = $this->getNextRequest($event, $opts);
if ($naReq) {
$options['exceptions'] = false;
return $this->send($naReq, $opts);
}
$response = $event->getResponse();
if ($options['exceptions']) {
throw new BadApiResponseException($response, $response->getStatusCode(), $response->getReasonPhrase());
}
return $response;
});
// Add in shutdown queue
$this->queue->add(function () use($promise) {
$promise->wait(false);
});
return $promise;
}
public function testExecutesTasksInOrder()
{
$tq = new TaskQueue(false);
$called = [];
$tq->add(function () use(&$called) {
$called[] = 'a';
});
$tq->add(function () use(&$called) {
$called[] = 'b';
});
$tq->add(function () use(&$called) {
$called[] = 'c';
});
$tq->run();
$this->assertEquals(['a', 'b', 'c'], $called);
}
