/usr/lib/python3/dist-packages/pandas/tests/test_msgpack/test_obj.py is in python3-pandas 0.13.1-2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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import unittest
import nose
import datetime
from pandas.msgpack import packb, unpackb
class DecodeError(Exception):
pass
class TestObj(unittest.TestCase):
def _arr_to_str(self, arr):
return ''.join(str(c) for c in arr)
def bad_complex_decoder(self, o):
raise DecodeError("Ooops!")
def _decode_complex(self, obj):
if b'__complex__' in obj:
return complex(obj[b'real'], obj[b'imag'])
return obj
def _encode_complex(self, obj):
if isinstance(obj, complex):
return {b'__complex__': True, b'real': 1, b'imag': 2}
return obj
def test_encode_hook(self):
packed = packb([3, 1+2j], default=self._encode_complex)
unpacked = unpackb(packed, use_list=1)
assert unpacked[1] == {b'__complex__': True, b'real': 1, b'imag': 2}
def test_decode_hook(self):
packed = packb([3, {b'__complex__': True, b'real': 1, b'imag': 2}])
unpacked = unpackb(packed, object_hook=self._decode_complex, use_list=1)
assert unpacked[1] == 1+2j
def test_decode_pairs_hook(self):
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), use_list=1)
assert unpacked[1] == prod_sum
def test_only_one_obj_hook(self):
self.assertRaises(ValueError, unpackb, b'', object_hook=lambda x: x, object_pairs_hook=lambda x: x)
def test_bad_hook(self):
def f():
packed = packb([3, 1+2j], default=lambda o: o)
unpacked = unpackb(packed, use_list=1)
self.assertRaises(ValueError, f)
def test_array_hook(self):
packed = packb([1,2,3])
unpacked = unpackb(packed, list_hook=self._arr_to_str, use_list=1)
assert unpacked == '123'
def test_an_exception_in_objecthook1(self):
def f():
packed = packb({1: {'__complex__': True, 'real': 1, 'imag': 2}})
unpackb(packed, object_hook=self.bad_complex_decoder)
self.assertRaises(DecodeError, f)
def test_an_exception_in_objecthook2(self):
def f():
packed = packb({1: [{'__complex__': True, 'real': 1, 'imag': 2}]})
unpackb(packed, list_hook=self.bad_complex_decoder, use_list=1)
self.assertRaises(DecodeError, f)
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