+    _VALID_URL =  r'(?:(?:http://)?(?:v|player)\.youku\.com/(?:v_show/id_|player\.php/sid/)|youku:)(?P<ID>[A-Za-z0-9]+)(?:\.html|/v\.swf|)'
+    _TEST =   {
+        u"url": u"http://v.youku.com/v_show/id_XNDgyMDQ2NTQw.html",
+        u"file": u"XNDgyMDQ2NTQw_part00.flv",
+        u"md5": u"ffe3f2e435663dc2d1eea34faeff5b5b",
+        u"params": {u"test": False},
+        u"info_dict": {
+            u"title": u"youtube-dl test video \"'/\\ä↭𝕐"
+        }
+    }
+