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https://github.com/msgpack/msgpack-python.git
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33e0e86f4e
* use isort * fallback: use BytesIO instead of StringIO. We had dropped Python 2 already.
59 lines
1.7 KiB
Python
59 lines
1.7 KiB
Python
from collections import namedtuple
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from msgpack import ExtType, packb, unpackb
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def test_namedtuple():
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T = namedtuple("T", "foo bar")
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def default(o):
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if isinstance(o, T):
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return dict(o._asdict())
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raise TypeError(f"Unsupported type {type(o)}")
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packed = packb(T(1, 42), strict_types=True, use_bin_type=True, default=default)
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unpacked = unpackb(packed, raw=False)
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assert unpacked == {"foo": 1, "bar": 42}
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def test_tuple():
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t = ("one", 2, b"three", (4,))
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def default(o):
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if isinstance(o, tuple):
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return {"__type__": "tuple", "value": list(o)}
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raise TypeError(f"Unsupported type {type(o)}")
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def convert(o):
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if o.get("__type__") == "tuple":
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return tuple(o["value"])
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return o
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data = packb(t, strict_types=True, use_bin_type=True, default=default)
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expected = unpackb(data, raw=False, object_hook=convert)
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assert expected == t
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def test_tuple_ext():
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t = ("one", 2, b"three", (4,))
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MSGPACK_EXT_TYPE_TUPLE = 0
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def default(o):
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if isinstance(o, tuple):
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# Convert to list and pack
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payload = packb(list(o), strict_types=True, use_bin_type=True, default=default)
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return ExtType(MSGPACK_EXT_TYPE_TUPLE, payload)
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raise TypeError(repr(o))
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def convert(code, payload):
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if code == MSGPACK_EXT_TYPE_TUPLE:
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# Unpack and convert to tuple
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return tuple(unpackb(payload, raw=False, ext_hook=convert))
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raise ValueError(f"Unknown Ext code {code}")
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data = packb(t, strict_types=True, use_bin_type=True, default=default)
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expected = unpackb(data, raw=False, ext_hook=convert)
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assert expected == t
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