/**
* Checks whether the given path ($path) is available in the hash.
* @param $path A list of keys to traverse, seperated by '/'
* @param $hash The hash to search
* @return bool
*/
public static function exists($path, $hash)
{
$path = \arc\path::collapse($path);
$parent = \arc\path::parent($path);
$filename = basename($path);
$hash = self::get($parent, $hash);
return is_array($hash) && array_key_exists($filename, $hash);
}
function testParent()
{
$this->assertTrue(\arc\path::parent('/') == null);
$this->assertTrue(\arc\path::parent('/test/') == '/');
$this->assertTrue(\arc\path::parent('/a/b/') == '/a/');
$this->assertTrue(\arc\path::parent('/a/b/', '/a/b/') == null);
$this->assertTrue(\arc\path::parent('/a/b/', '/a/') == '/a/');
$this->assertTrue(\arc\path::parent('/a/b/', '/test/') == null);
}
