Test existing cookies

tests/SessionMiddlewareTest.php

@@ -0,0 +1,41 @@
+<?php declare(strict_types=1);
+
+namespace WyriHaximus\React\Tests\Http\Middleware;
+
+use ApiClients\Tools\TestUtilities\TestCase;
+use Psr\Http\Message\ServerRequestInterface;
+use React\Cache\ArrayCache;
+use RingCentral\Psr7\Response;
+use RingCentral\Psr7\ServerRequest;
+use WyriHaximus\React\Http\Middleware\SessionMiddleware;
+
+final class SessionMiddlewareTest extends TestCase
+{
+    public function testSessionExists()
+    {
+        $contents = ['Sand'];
+        $cookieName = 'CookieMonster';
+        $cache = new ArrayCache();
+        $cache->set('cookies', ['Chocolate Chip']);
+        $middleware = new SessionMiddleware($cookieName, $cache);
+
+        $request = (new ServerRequest(
+            'GET',
+            'https://www.example.com/'
+        ))->withCookieParams([
+            'CookieMonster' => 'cookies',
+        ]);
+
+        $next = function (ServerRequestInterface $request) use ($contents) {
+            $request->getAttribute(SessionMiddleware::ATTRIBUTE_NAME)->setContents($contents);
+
+            return new Response();
+        };
+
+        $middleware($request, $next);
+
+        $sandCoookies = $this->await($cache->get('cookies'));
+
+        self::assertSame($contents, $sandCoookies);
+    }
+}