/**
* Specter JSON Fake Data
*
* The route should return json data of Specter format, and this middleware
* will substitute fake data into it.
*
* @param RequestInterface $request PSR7 request
* @param ResponseInterface $response PSR7 response
* @param callable $next Next middleware
*
* @return ResponseInterface
* @throws InvalidArgumentException
* @throws LogicException
*/
public function __invoke(RequestInterface $request, ResponseInterface $response, callable $next)
{
/**
* We are a post processor, and so we run the $next immediately
*
* @var ResponseInterface $response
*/
$response = $next($request, $response);
// Decode the json returned by the route and prepare it for mock data
// processing.
$fixture = @json_decode($response->getBody()->getContents(), true);
if (json_last_error() !== JSON_ERROR_NONE) {
throw new LogicException('Failed to parse json string. Error: ' . json_last_error_msg());
}
// We will not process files without the Specter trigger, and instead
// return an unchanged response.
if (!array_key_exists($this->specterTrigger, $fixture)) {
return $response;
}
// Process the fixture data, using a seed in case the designer wants
// a repeatable result.
$seed = $request->getHeader('SpecterSeed');
$specter = new Specter(array_shift($seed));
$json = $specter->substituteMockData($fixture);
// Prepare a fresh body stream
$data = json_encode($json);
$stream = Psr7\stream_for($data);
// Return an immutable body in a cloned $request object
return $response->withBody($stream);
}
/**
* Handle an incoming request.
*
* @param Request $request
* @param Closure $next
*
* @return Response
* @throws LogicException
*/
public function handle(Request $request, Closure $next)
{
/**
* @var Response $response
*/
$response = $next($request);
$fixture = @json_decode($response->getContent(), true);
if (json_last_error() !== JSON_ERROR_NONE) {
throw new LogicException('Failed to parse json string. Error: ' . json_last_error_msg());
}
// We will not process files without the Specter trigger, and instead
// return an unchanged response.
if (!array_key_exists($this->specterTrigger, $fixture)) {
return $response;
}
// Process the fixture data, using a seed in case the designer wants
// a repeatable result.
$seed = $request->header('SpecterSeed', 0);
$specter = new Specter($seed);
$json = $specter->substituteMockData($fixture);
return $response->setContent(json_encode($json));
}
/**
* Specter should be able to select a related value from a list
*
* @test
* @return void
*/
public function specterCanSelectRelatedValuesWithStaticValue()
{
$seed = 2;
$specter = new Specter($seed);
$json = file_get_contents(TEST_FIXTURE_FOLDER . '/related-element.json');
$fixture = json_decode($json, true);
$data = $specter->substituteMockData($fixture);
self::assertEquals($data['type'], 'guest', 'The seed should have made the type == guest');
self::assertEquals($data['name'], 'Guest User', 'A guest user should have been created');
}
<?php
/**
* Specter command line tool
*
* @author Platform Team <*****@*****.**>
* @copyright 2016 Help Scout
*/
require __DIR__ . '/../vendor/autoload.php';
use HelpScout\Specter\Specter;
$fixtureFolder = __DIR__ . '/../tests/fixture';
$specter = new Specter();
$json = file_get_contents($fixtureFolder . '/customer.json');
$fixture = @json_decode($json, true);
if (json_last_error() !== JSON_ERROR_NONE) {
throw new LogicException('Failed to parse json string. Error: ' . json_last_error_msg());
}
var_dump($specter->substituteMockData($fixture));
/* End of file cli.php */