#NEWLINE# def test_comparing_empty_lists( self ) : #NEWLINE# #INDENT# group_gen = difflib . SequenceMatcher ( None , [ ] , [ ] ) . get_grouped_opcodes ( ) #NEWLINE# self . assertRaises ( StopIteration , group_gen . next ) #NEWLINE# diff_gen = difflib . unified_diff ( [ ] , [ ] ) #NEWLINE# self . assertRaises ( StopIteration , self . next )