* initial commit

test/AppTest/Action/PingActionTest.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace AppTest\Action;
+
+use App\Action\PingAction;
+use Interop\Http\ServerMiddleware\DelegateInterface;
+use PHPUnit\Framework\TestCase;
+use Psr\Http\Message\ServerRequestInterface;
+use Zend\Diactoros\Response\JsonResponse;
+
+class PingActionTest extends TestCase
+{
+    public function testResponse()
+    {
+        $pingAction = new PingAction();
+        $response = $pingAction->process(
+            $this->prophesize(ServerRequestInterface::class)->reveal(),
+            $this->prophesize(DelegateInterface::class)->reveal()
+        );
+
+        $json = json_decode((string) $response->getBody());
+
+        $this->assertInstanceOf(JsonResponse::class, $response);
+        $this->assertTrue(isset($json->ack));
+    }
+}