test_parsers.py 文件源码

def test_fwf_for_uint8(self):
        data = """1421302965.213420    PRI=3 PGN=0xef00      DST=0x17 SRC=0x28    04 154 00 00 00 00 00 127
1421302964.226776    PRI=6 PGN=0xf002               SRC=0x47    243 00 00 255 247 00 00 71"""
        df = read_fwf(StringIO(data),
                      colspecs=[(0, 17), (25, 26), (33, 37),
                                (49, 51), (58, 62), (63, 1000)],
                      names=['time', 'pri', 'pgn', 'dst', 'src', 'data'],
                      converters={
            'pgn': lambda x: int(x, 16),
            'src': lambda x: int(x, 16),
            'dst': lambda x: int(x, 16),
            'data': lambda x: len(x.split(' '))})

        expected = DataFrame([[1421302965.213420, 3, 61184, 23, 40, 8],
                              [1421302964.226776, 6, 61442, None, 71, 8]],
                             columns=["time", "pri", "pgn", "dst", "src", "data"])
        expected["dst"] = expected["dst"].astype(object)

        tm.assert_frame_equal(df, expected)