add test for createWithConfig

src/Promise.php

@@ -53,13 +53,13 @@ public function __construct(PromiseInterface $promise, RequestInterface $request
  $this->state = self::FULFILLED;
 
  return $response;
- }, function ($reason) use ($request) {
+ }, function ($reason) {
  $this->state = self::REJECTED;
 
  if ($reason instanceof HttplugException) {
  $this->exception = $reason;
  } elseif ($reason instanceof GuzzleExceptions\GuzzleException) {
- $this->exception = $this->handleException($reason, $request);
+ $this->exception = $this->handleException($reason);
  } elseif ($reason instanceof \Throwable) {
  $this->exception = new HttplugException\TransferException('Invalid exception returned from Guzzle7', 0, $reason);
  } else {
@@ -85,7 +85,7 @@ public function wait($unwrap = true)
  $this->promise->wait(false);
 
  if ($unwrap) {
- if (self::REJECTED == $this->getState()) {
+ if (self::REJECTED === $this->getState()) {
  throw $this->exception;
  }
 
@@ -98,7 +98,7 @@ public function wait($unwrap = true)
  *
  * @return HttplugException
  */
- private function handleException(GuzzleExceptions\GuzzleException $exception, RequestInterface $request)
+ private function handleException(GuzzleExceptions\GuzzleException $exception)
  {
  if ($exception instanceof GuzzleExceptions\ConnectException) {
  return new HttplugException\NetworkException($exception->getMessage(), $exception->getRequest(), $exception);