MockHandler.php in Zircon Profile 8

Namespace

GuzzleHttp\Handler

File

vendor/guzzlehttp/guzzle/src/Handler/MockHandler.php

<?php

namespace GuzzleHttp\Handler;

use GuzzleHttp\HandlerStack;
use GuzzleHttp\Promise\PromiseInterface;
use GuzzleHttp\Promise\RejectedPromise;
use GuzzleHttp\TransferStats;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;

/**
 * Handler that returns responses or throw exceptions from a queue.
 */
class MockHandler implements \Countable {
  private $queue;
  private $lastRequest;
  private $lastOptions;
  private $onFulfilled;
  private $onRejected;

  /**
   * Creates a new MockHandler that uses the default handler stack list of
   * middlewares.
   *
   * @param array $queue Array of responses, callables, or exceptions.
   * @param callable $onFulfilled Callback to invoke when the return value is fulfilled.
   * @param callable $onRejected  Callback to invoke when the return value is rejected.
   *
   * @return MockHandler
   */
  public static function createWithMiddleware(array $queue = null, callable $onFulfilled = null, callable $onRejected = null) {
    return HandlerStack::create(new self($queue, $onFulfilled, $onRejected));
  }

  /**
   * The passed in value must be an array of
   * {@see Psr7\Http\Message\ResponseInterface} objects, Exceptions,
   * callables, or Promises.
   *
   * @param array $queue
   * @param callable $onFulfilled Callback to invoke when the return value is fulfilled.
   * @param callable $onRejected  Callback to invoke when the return value is rejected.
   */
  public function __construct(array $queue = null, callable $onFulfilled = null, callable $onRejected = null) {
    $this->onFulfilled = $onFulfilled;
    $this->onRejected = $onRejected;
    if ($queue) {
      call_user_func_array([
        $this,
        'append',
      ], $queue);
    }
  }
  public function __invoke(RequestInterface $request, array $options) {
    if (!$this->queue) {
      throw new \OutOfBoundsException('Mock queue is empty');
    }
    if (isset($options['delay'])) {
      usleep($options['delay'] * 1000);
    }
    $this->lastRequest = $request;
    $this->lastOptions = $options;
    $response = array_shift($this->queue);
    if (is_callable($response)) {
      $response = $response($request, $options);
    }
    $response = $response instanceof \Exception ? new RejectedPromise($response) : \GuzzleHttp\Promise\promise_for($response);
    return $response
      ->then(function ($value) use ($request, $options) {
      $this
        ->invokeStats($request, $options, $value);
      if ($this->onFulfilled) {
        call_user_func($this->onFulfilled, $value);
      }
      return $value;
    }, function ($reason) use ($request, $options) {
      $this
        ->invokeStats($request, $options, null, $reason);
      if ($this->onRejected) {
        call_user_func($this->onRejected, $reason);
      }
      return new RejectedPromise($reason);
    });
  }

  /**
   * Adds one or more variadic requests, exceptions, callables, or promises
   * to the queue.
   */
  public function append() {
    foreach (func_get_args() as $value) {
      if ($value instanceof ResponseInterface || $value instanceof \Exception || $value instanceof PromiseInterface || is_callable($value)) {
        $this->queue[] = $value;
      }
      else {
        throw new \InvalidArgumentException('Expected a response or ' . 'exception. Found ' . \GuzzleHttp\describe_type($value));
      }
    }
  }

  /**
   * Get the last received request.
   *
   * @return RequestInterface
   */
  public function getLastRequest() {
    return $this->lastRequest;
  }

  /**
   * Get the last received request options.
   *
   * @return RequestInterface
   */
  public function getLastOptions() {
    return $this->lastOptions;
  }

  /**
   * Returns the number of remaining items in the queue.
   *
   * @return int
   */
  public function count() {
    return count($this->queue);
  }
  private function invokeStats(RequestInterface $request, array $options, ResponseInterface $response = null, $reason = null) {
    if (isset($options['on_stats'])) {
      $stats = new TransferStats($request, $response, 0, $reason);
      call_user_func($options['on_stats'], $stats);
    }
  }

}

Classes

Name	Description
MockHandler	Handler that returns responses or throw exceptions from a queue.