test_lzma.py 文件源码

def test__encode_filter_properties(self):
        with self.assertRaises(TypeError):
            lzma._encode_filter_properties(b"not a dict")
        with self.assertRaises(ValueError):
            lzma._encode_filter_properties({"id": 0x100})
        with self.assertRaises(ValueError):
            lzma._encode_filter_properties({"id": lzma.FILTER_LZMA2, "junk": 12})
        with self.assertRaises(lzma.LZMAError):
            lzma._encode_filter_properties({"id": lzma.FILTER_DELTA,
                                           "dist": 9001})

        # Test with parameters used by zipfile module.
        props = lzma._encode_filter_properties({
                "id": lzma.FILTER_LZMA1,
                "pb": 2,
                "lp": 0,
                "lc": 3,
                "dict_size": 8 << 20,
            })
        self.assertEqual(props, b"]\x00\x00\x80\x00")