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#!/usr/bin/env python
# coding: utf-8
from nose import main
from nose.tools import *
from msgpack import packb, unpackb
def _decode_complex(obj):
if b'__complex__' in obj:
return complex(obj[b'real'], obj[b'imag'])
return obj
def _encode_complex(obj):
if isinstance(obj, complex):
return {b'__complex__': True, b'real': 1, b'imag': 2}
return obj
def test_encode_hook():
packed = packb([3, 1+2j], default=_encode_complex)
unpacked = unpackb(packed, use_list=1)
eq_(unpacked[1], {b'__complex__': True, b'real': 1, b'imag': 2})
def test_decode_hook():
packed = packb([3, {b'__complex__': True, b'real': 1, b'imag': 2}])
unpacked = unpackb(packed, object_hook=_decode_complex, use_list=1)
eq_(unpacked[1], 1+2j)
def test_decode_pairs_hook():
packed = packb([3, {1: 2, 3: 4}])
prod_sum = 1 * 2 + 3 * 4
unpacked = unpackb(packed, object_pairs_hook=lambda l: sum(k * v for k, v in l))
eq_(unpacked[1], prod_sum)
@raises(ValueError)
def test_only_one_obj_hook():
unpackb(b'', object_hook=lambda x: x, object_pairs_hook=lambda x: x)
@raises(ValueError)
def test_bad_hook():
packed = packb([3, 1+2j], default=lambda o: o)
unpacked = unpackb(packed, use_list=1)
def _arr_to_str(arr):
return ''.join(str(c) for c in arr)
def test_array_hook():
packed = packb([1,2,3])
unpacked = unpackb(packed, list_hook=_arr_to_str, use_list=1)
eq_(unpacked, '123')
if __name__ == '__main__':
main()
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