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# coding: utf-8
from collections import namedtuple
from msgpack import packb, unpackb, ExtType
def test_namedtuple():
T = namedtuple('T', "foo bar")
def default(o):
if isinstance(o, T):
return dict(o._asdict())
raise TypeError('Unsupported type %s' % (type(o),))
packed = packb(T(1, 42), strict_types=True, use_bin_type=True, default=default)
unpacked = unpackb(packed, raw=False)
assert unpacked == {'foo': 1, 'bar': 42}
def test_tuple():
t = ('one', 2, b'three', (4, ))
def default(o):
if isinstance(o, tuple):
return {
'__type__': 'tuple',
'value': list(o),
}
raise TypeError('Unsupported type %s' % (type(o),))
def convert(o):
if o.get('__type__') == 'tuple':
return tuple(o['value'])
return o
data = packb(t, strict_types=True, use_bin_type=True, default=default)
expected = unpackb(data, raw=False, object_hook=convert)
assert expected == t
def test_tuple_ext():
t = ('one', 2, b'three', (4, ))
MSGPACK_EXT_TYPE_TUPLE = 0
def default(o):
if isinstance(o, tuple):
# Convert to list and pack
payload = packb(
list(o), strict_types=True, use_bin_type=True, default=default)
return ExtType(MSGPACK_EXT_TYPE_TUPLE, payload)
raise TypeError(repr(o))
def convert(code, payload):
if code == MSGPACK_EXT_TYPE_TUPLE:
# Unpack and convert to tuple
return tuple(unpackb(payload, raw=False, ext_hook=convert))
raise ValueError('Unknown Ext code {}'.format(code))
data = packb(t, strict_types=True, use_bin_type=True, default=default)
expected = unpackb(data, raw=False, ext_hook=convert)
assert expected == t
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