--TEST--
getCachedMarkdown / setCachedMarkdown: store and retrieve rendered HTML by file key
--FILE--
<?php
require '/var/www/app/cache.php';

$dir = sys_get_temp_dir() . '/phpt_mdcache_' . getmypid();
mkdir($dir);
$file = "$dir/post.md";
file_put_contents($file, '# Hello');

// Nothing cached yet
echo (getCachedMarkdown($file) ?? 'null') . "\n";

// Store and retrieve
setCachedMarkdown($file, '<h1>Hello</h1>');
echo getCachedMarkdown($file) . "\n";

// langPrefix produces a separate cache entry
echo (getCachedMarkdown($file, '/fr') ?? 'null') . "\n";

setCachedMarkdown($file, '<h1>Bonjour</h1>', '/fr');
echo getCachedMarkdown($file, '/fr') . "\n";

// Default key is unaffected
echo getCachedMarkdown($file) . "\n";

unlink($file);
rmdir($dir);
?>
--EXPECT--
null
<h1>Hello</h1>
null
<h1>Bonjour</h1>
<h1>Hello</h1>