def invalid_state_test_2():
    lexer = LatexIncrementalDecoder()
    # piggyback invalid state
    lexer.state = '**invalid**'
    nose.tools.assert_raises(AssertionError, lambda: lexer.decode(b'   '))
def invalid_state_test_2():
    lexer = LatexIncrementalDecoder()
    # piggyback invalid state
    lexer.state = '**invalid**'
    nose.tools.assert_raises(AssertionError, lambda: lexer.decode(b'   '))