public function testRead()
{
$key = 'key';
$keys = array($key);
$time = time() + 60;
$path = Libraries::get(true, 'resources') . "/tmp/cache/{$key}";
file_put_contents($path, "{:expiry:{$time}}\ndata");
$this->assertFileExists($path);
$params = compact('keys');
$result = $this->File->read($keys);
$this->assertEqual(array($key => 'data'), $result);
unlink($path);
}