http://gitunderground.i2p/archive/youtube-dl/src/commit/46521096433aceaa41b4caa845bed22ca6f377ce/test/test_utils.py
x=y#a ' smug_url = smuggle_url ( url , data ) unsmug_url , unsmug_data = unsmuggle_url ( smug_url ) self . assertEqual ( url , unsmug_url ) self . assertEqual ( data , unsmug_data ) res_url , res_data = unsmuggle_url ( url ) self . assertEqual ( res_url , url ) self . assertEqual ( res_data , None ) smug_url = smuggle_url ( url , { ' a ' : ' b ' } ) smug_smug_url = smuggle_url ( smug_url , { ' c ' : ' d ' } ) res_url , res_data = unsmuggle_url ( smug_smug_url ) self . assertEqual ( res_url , url ) self ....