self.assertEqual(
sanitize_filename('New World record at 0:12:34'),
'New World record at 0_12_34')
+
self.assertEqual(sanitize_filename('--gasdgf'), '_-gasdgf')
self.assertEqual(sanitize_filename('--gasdgf', is_id=True), '--gasdgf')
+ self.assertEqual(sanitize_filename('.gasdgf'), 'gasdgf')
+ self.assertEqual(sanitize_filename('.gasdgf', is_id=True), '.gasdgf')
forbidden = '"\0\\/'
for fc in forbidden: