msgpack-python/test/test_unpack.py
Ken Dreyer f40fdf523a tests: add pytest 2.3 compatibility
Adjust the skipif conditional to use the older pytest 2.3 syntax.

(This allows the tests to pass with the system pytest package on RHEL
7.0, since RHEL 7.0 ships pytest 2.3.5.)
2015-01-23 12:27:58 -07:00

71 lines
1.9 KiB
Python

from io import BytesIO
import sys
from msgpack import Unpacker, packb, OutOfData, ExtType
from pytest import raises, mark
def test_unpack_array_header_from_file():
f = BytesIO(packb([1,2,3,4]))
unpacker = Unpacker(f)
assert unpacker.read_array_header() == 4
assert unpacker.unpack() == 1
assert unpacker.unpack() == 2
assert unpacker.unpack() == 3
assert unpacker.unpack() == 4
with raises(OutOfData):
unpacker.unpack()
@mark.skipif("not hasattr(sys, 'getrefcount') == True",
reason='sys.getrefcount() is needed to pass this test')
def test_unpacker_hook_refcnt():
result = []
def hook(x):
result.append(x)
return x
basecnt = sys.getrefcount(hook)
up = Unpacker(object_hook=hook, list_hook=hook)
assert sys.getrefcount(hook) >= basecnt + 2
up.feed(packb([{}]))
up.feed(packb([{}]))
assert up.unpack() == [{}]
assert up.unpack() == [{}]
assert result == [{}, [{}], {}, [{}]]
del up
assert sys.getrefcount(hook) == basecnt
def test_unpacker_ext_hook():
class MyUnpacker(Unpacker):
def __init__(self):
super(MyUnpacker, self).__init__(ext_hook=self._hook,
encoding='utf-8')
def _hook(self, code, data):
if code == 1:
return int(data)
else:
return ExtType(code, data)
unpacker = MyUnpacker()
unpacker.feed(packb({'a': 1}, encoding='utf-8'))
assert unpacker.unpack() == {'a': 1}
unpacker.feed(packb({'a': ExtType(1, b'123')}, encoding='utf-8'))
assert unpacker.unpack() == {'a': 123}
unpacker.feed(packb({'a': ExtType(2, b'321')}, encoding='utf-8'))
assert unpacker.unpack() == {'a': ExtType(2, b'321')}
if __name__ == '__main__':
test_unpack_array_header_from_file()
test_unpacker_hook_refcnt()
test_unpacker_ext_hook()