public function testLastModifiedTimeIsUpdatedOnWrite()
{
$adapter = new InMemory(array('foobar' => array('content' => 'Some content', 'mtime' => 123456789)));
$time = time();
$adapter->write('foobar', 'Changed content');
$this->assertTrue(in_array($adapter->mtime('foobar'), array($time, $time + 1)));
}