Mock memcached and test locally.

appengine/flexible/memcache/composer.json

@@ -1,7 +1,8 @@
 {
     "require": {
         "silex/silex": "^1.3",
-        "twig/twig": "^1.24"
+        "twig/twig": "^1.24",
+        "gecko-packages/gecko-memcache-mock": "^2.0"
     },
     "require-dev": {
         "phpunit/phpunit": "~4",

appengine/flexible/memcache/phpunit.xml

@@ -5,4 +5,12 @@
       <directory>tests</directory>
     </testsuite>
   </testsuites>
+  <logging>
+    <log type="coverage-clover" target="build/logs/clover.xml"/>
+  </logging>
+  <filter>
+    <whitelist>
+      <file>app.php</file>
+    </whitelist>
+  </filter>
 </phpunit>

appengine/flexible/memcache/tests/LocalTest.php

@@ -0,0 +1,84 @@
+<?php
+/**
+ * Copyright 2016 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+namespace Google\Cloud\Test;
+
+use Silex\WebTestCase;
+use GeckoPackages\MemcacheMock\MemcachedMock;
+
+class LocalTest extends WebTestCase
+{
+    public function setUp()
+    {
+        parent::setUp();
+        $this->client = $this->createClient();
+    }
+
+    public function createApplication()
+    {
+        $app = require __DIR__ . '/../app.php';
+        $app['memcached'] = new MemcachedMock;
+        $app['memcached']->addServer("localhost", 11211);
+        return $app;
+    }
+
+    public function testIndex()
+    {
+        // Access the modules app top page.
+        $client = $this->client;
+        $client->request('GET', '/');
+        $this->assertTrue($client->getResponse()->isOk());
+
+        // Make sure it handles a POST request too, which will increment the
+        // counter.
+        $this->client->request('POST', '/');
+        $this->assertTrue($this->client->getResponse()->isOk());
+    }
+
+    public function testGetAndPut()
+    {
+        // Use a random key to avoid colliding with simultaneous tests.
+        $key = rand(0, 1000);
+
+        // Test the /memcached REST API.
+        $this->put("/memcached/test$key", "sour");
+        $this->assertEquals("sour", $this->get("/memcached/test$key"));
+        $this->put("/memcached/test$key", "sweet");
+        $this->assertEquals("sweet", $this->get("/memcached/test$key"));
+    }
+
+    /**
+     * HTTP PUTs the body to the url path.
+     * @param $path string
+     * @param $body string
+     */
+    private function put($path, $body)
+    {
+        $this->client->request('PUT', $path, array(), array(), array(), $body);
+        return $this->client->getResponse()->getContent();
+    }
+
+    /**
+     * HTTP GETs the url path.
+     * @param $path string
+     * @return string The HTTP Response.
+     */
+    private function get($path)
+    {
+        $this->client->request('GET', $path);
+        return $this->client->getResponse()->getContent();
+    }
+}