Added basic API endpoints (#258)

tests/API/HealthcheckControllerTest.php

@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Tests\API;
+
+use App\Entity\User;
+
+/**
+ * @coversDefaultClass \App\API\HealthcheckController
+ * @group integration
+ * @group legacy
+ */
+class HealthcheckControllerTest extends APIControllerBaseTest
+{
+    public function testIsSecure()
+    {
+        $this->assertUrlIsSecured('/api/ping');
+    }
+
+    public function testPing()
+    {
+        $client = $this->getClientForAuthenticatedUser(User::ROLE_USER);
+        $this->assertAccessIsGranted($client, '/api/ping');
+        $result = json_decode($client->getResponse()->getContent(), true);
+
+        $this->assertInternalType('array', $result);
+        $this->assertEquals(['message' => 'pong'], $result);
+    }
+}