README.md

mezzio-test

mezzio-test provides classes and tools to help testing mezzio applications. Its API aims to be similar to laminas-test to ease migration from Laminas MVC to Mezzio.

The package is not bound to any testing framework as it does not do any assertions. Instead it just bootstraps the Container and Application based on your config file. Config file locations default to the mezzio-skeleton, but can be reconfigured.

Also, a TestConfigProvider is provided for loading custom testing configuration (custom database, custom container configuration, ...).

Usage

Instantiate the \Trinet\MezzioTest\MezzioTestEnvironment class in your test setup:

protected function setUp(): void
{
    parent::setUp();
    $this->mezzioApp = new MezzioTestEnvironment();
}

This will build your application container, bootstrap the mezzio Application (pipeline, routes) and registers a custom \Laminas\Stratigility\Middleware\ErrorHandler listener, which will just re-throw any exception. Thus, the native exception assertions can be used (eg. $this->expectException() in PHPUnit).

Currently, the Test environment offers three possibilities to dispatch a request:

• dispatch(UriInterface|string $uri, ?string $method = null, array $params = [], array $headers = []): ResponseInterface: dispatch any URI with the given method (defaults to GET). $params will be used as query parameters for GET and as parsed body for POST requests.
• dispatchRoute(string $routeName, array $routeParams = [], string $method = null, array $requestParams = [], array $headers = []): ResponseInterface: dispatch a given named route
• dispatchRequest(ServerRequestInterface $request): ResponseInterface: dispatch a ServerRequestInterface

If your base directory is not at the default location, a constructor parameter can be given to MezzioTestEnvironment.

The container and router can also be retrieved with MezzioTestEnvironment->container() and ->router(), respectively.

Configuration

The \Trinet\MezzioTest\TestConfigProvider can be used to load additional config files used for testing. It will look for *testing.php, *testing.local.php, testing/*testing.php and testing/*testing.local.php in the config directory, which defaults to config/autoload/ in your project root, but can be configured to anything else.

To use it, call the loader when in testing mode in your config/config.php file to get an array of providers:

$providers = [
    \A\ConfigProvider::class,
    \B\ConfigProvider::class,
    // ...
];

if (getenv('APP_TESTING') !== false) {
    $providers = array_merge($providers, \Trinet\MezzioTest\TestConfigProvider::load());
}

$aggregator = new ConfigAggregator($providers, null, []);

or to use another config path:

$providers = [
    \A\ConfigProvider::class,
    \B\ConfigProvider::class,
    // ...
];

if (getenv('APP_TESTING') !== false) {
    $providers = array_merge($providers, \Trinet\MezzioTest\TestConfigProvider::load('custom/path'));
}

$aggregator = new ConfigAggregator($providers, null, []);