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=======
Testing
=======
RingPHP tests client handlers using `PHPUnit <https://phpunit.de/>`_ and a
built-in node.js web server.
Running Tests
-------------
First, install the dependencies using `Composer <https://getcomposer.org>`_.
composer.phar install
Next, run the unit tests using ``Make``.
make test
The tests are also run on Travis-CI on each commit: https://travis-ci.org/guzzle/guzzle-ring
Test Server
-----------
Testing client handlers usually involves actually sending HTTP requests.
RingPHP provides a node.js web server that returns canned responses and
keep a list of the requests that have been received. The server can then
be queried to get a list of the requests that were sent by the client so that
you can ensure that the client serialized and transferred requests as intended.
The server keeps a list of queued responses and returns responses that are
popped off of the queue as HTTP requests are received. When there are not
more responses to serve, the server returns a 500 error response.
The test server uses the ``GuzzleHttp\Tests\Ring\Client\Server`` class to
control the server.
.. code-block:: php
use GuzzleHttp\Ring\Client\StreamHandler;
use GuzzleHttp\Tests\Ring\Client\Server;
// First return a 200 followed by a 404 response.
Server::enqueue([
['status' => 200],
['status' => 404]
]);
$handler = new StreamHandler();
$response = $handler([
'http_method' => 'GET',
'headers' => ['host' => [Server::$host]],
'uri' => '/'
]);
assert(200 == $response['status']);
$response = $handler([
'http_method' => 'HEAD',
'headers' => ['host' => [Server::$host]],
'uri' => '/'
]);
assert(404 == $response['status']);
After requests have been sent, you can get a list of the requests as they
were sent over the wire to ensure they were sent correctly.
.. code-block:: php
$received = Server::received();
assert('GET' == $received[0]['http_method']);
assert('HEAD' == $received[1]['http_method']);