Actualización

vendor/symfony/cache/Tests/Fixtures/ArrayCache.php

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+<?php
+
+namespace Symfony\Component\Cache\Tests\Fixtures;
+
+use Doctrine\Common\Cache\CacheProvider;
+
+class ArrayCache extends CacheProvider
+{
+    private $data = [];
+
+    protected function doFetch($id)
+    {
+        return $this->doContains($id) ? $this->data[$id][0] : false;
+    }
+
+    protected function doContains($id)
+    {
+        if (!isset($this->data[$id])) {
+            return false;
+        }
+
+        $expiry = $this->data[$id][1];
+
+        return !$expiry || microtime(true) < $expiry || !$this->doDelete($id);
+    }
+
+    protected function doSave($id, $data, $lifeTime = 0)
+    {
+        $this->data[$id] = [$data, $lifeTime ? microtime(true) + $lifeTime : false];
+
+        return true;
+    }
+
+    protected function doDelete($id)
+    {
+        unset($this->data[$id]);
+
+        return true;
+    }
+
+    protected function doFlush()
+    {
+        $this->data = [];
+
+        return true;
+    }
+
+    protected function doGetStats()
+    {
+        return null;
+    }
+}

vendor/symfony/cache/Tests/Fixtures/ExternalAdapter.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Tests\Fixtures;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\Adapter\ArrayAdapter;
+
+/**
+ * Adapter not implementing the {@see \Symfony\Component\Cache\Adapter\AdapterInterface}.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class ExternalAdapter implements CacheItemPoolInterface
+{
+    private $cache;
+
+    public function __construct(int $defaultLifetime = 0)
+    {
+        $this->cache = new ArrayAdapter($defaultLifetime);
+    }
+
+    public function getItem($key)
+    {
+        return $this->cache->getItem($key);
+    }
+
+    public function getItems(array $keys = [])
+    {
+        return $this->cache->getItems($keys);
+    }
+
+    public function hasItem($key)
+    {
+        return $this->cache->hasItem($key);
+    }
+
+    public function clear()
+    {
+        return $this->cache->clear();
+    }
+
+    public function deleteItem($key)
+    {
+        return $this->cache->deleteItem($key);
+    }
+
+    public function deleteItems(array $keys)
+    {
+        return $this->cache->deleteItems($keys);
+    }
+
+    public function save(CacheItemInterface $item)
+    {
+        return $this->cache->save($item);
+    }
+
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        return $this->cache->saveDeferred($item);
+    }
+
+    public function commit()
+    {
+        return $this->cache->commit();
+    }
+}