Add test for Zend Stratigility

tests/Middleware/Stratigility/MiddlewareTest.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace Rougin\Slytherin\Test\Middleware\Auryn;
+
+use Zend\Stratigility\MiddlewarePipe;
+
+use Rougin\Slytherin\Middleware\Stratigility\Middleware;
+
+use PHPUnit_Framework_TestCase;
+use Rougin\Slytherin\Test\Fixture\Http\Uri;
+use Rougin\Slytherin\Test\Fixture\Http\Response;
+use Rougin\Slytherin\Test\Fixture\Http\ServerRequest;
+
+/**
+ * Stratigility Middleware Test
+ *
+ * @package Slytherin
+ * @author  Rougin Royce Gutib <[email protected]>
+ */
+class MiddlewareTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * Tests __invoke() method
+     *
+     * @return void
+     */
+    public function testInvokeMethod()
+    {
+        if (! class_exists('Zend\Stratigility\MiddlewarePipe')) {
+            $this->markTestSkipped('Zend Stratigility is not installed.');
+        }
+
+        $queue = [
+            'Rougin\Slytherin\Test\Fixture\Middlewares\FirstMiddleware',
+            'Rougin\Slytherin\Test\Fixture\Middlewares\SecondMiddleware',
+            'Rougin\Slytherin\Test\Fixture\Middlewares\LastMiddleware',
+        ];
+
+        $middleware = new Middleware(new MiddlewarePipe);
+        $request    = new ServerRequest('1.1', [], null, '/', 'GET', new Uri);
+        $response   = new Response;
+
+        $response = $middleware($request, $response, $queue);
+
+        $this->assertEquals('First! Second! Last!', $response->getBody());
+    }
+}