public function testGetPageCache()
{
$pc = new PageCache();
$result = $pc->getPageCache();
$this->assertSame(false, $result);
$pc->destroy();
$pc = new PageCache(__DIR__ . '/config_test.php');
$pc->setPath(vfsStream::url('tmpdir') . '/');
$pc->init();
$output = 'Testing output for getPageCache()';
echo $output;
ob_end_flush();
$this->assertEquals($output, $pc->getPageCache());
}