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https://github.com/msgpack/msgpack-python.git
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74 lines
1.9 KiB
Python
74 lines
1.9 KiB
Python
#!/usr/bin/env python
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# coding: utf-8
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from nose import main
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from nose.tools import *
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from msgpack import packb, unpackb
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def _decode_complex(obj):
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if b'__complex__' in obj:
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return complex(obj[b'real'], obj[b'imag'])
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return obj
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def _encode_complex(obj):
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if isinstance(obj, complex):
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return {b'__complex__': True, b'real': 1, b'imag': 2}
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return obj
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def test_encode_hook():
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packed = packb([3, 1+2j], default=_encode_complex)
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unpacked = unpackb(packed, use_list=1)
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eq_(unpacked[1], {b'__complex__': True, b'real': 1, b'imag': 2})
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def test_decode_hook():
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packed = packb([3, {b'__complex__': True, b'real': 1, b'imag': 2}])
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unpacked = unpackb(packed, object_hook=_decode_complex, use_list=1)
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eq_(unpacked[1], 1+2j)
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def test_decode_pairs_hook():
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packed = packb([3, {1: 2, 3: 4}])
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prod_sum = 1 * 2 + 3 * 4
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unpacked = unpackb(packed, object_pairs_hook=lambda l: sum(k * v for k, v in l), use_list=1)
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eq_(unpacked[1], prod_sum)
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@raises(ValueError)
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def test_only_one_obj_hook():
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unpackb(b'', object_hook=lambda x: x, object_pairs_hook=lambda x: x)
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@raises(ValueError)
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def test_bad_hook():
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packed = packb([3, 1+2j], default=lambda o: o)
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unpacked = unpackb(packed, use_list=1)
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def _arr_to_str(arr):
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return ''.join(str(c) for c in arr)
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def test_array_hook():
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packed = packb([1,2,3])
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unpacked = unpackb(packed, list_hook=_arr_to_str, use_list=1)
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eq_(unpacked, '123')
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class DecodeError(Exception):
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pass
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def bad_complex_decoder(o):
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raise DecodeError("Ooops!")
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@raises(DecodeError)
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def test_an_exception_in_objecthook1():
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packed = packb({1: {'__complex__': True, 'real': 1, 'imag': 2}})
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unpackb(packed, object_hook=bad_complex_decoder)
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@raises(DecodeError)
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def test_an_exception_in_objecthook2():
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packed = packb({1: [{'__complex__': True, 'real': 1, 'imag': 2}]})
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unpackb(packed, list_hook=bad_complex_decoder, use_list=1)
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if __name__ == '__main__':
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main()
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