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import pickle
from pathlib import Path
from typing import TYPE_CHECKING
import pytest
from multidict import MultiDict, MultiDictProxy, istr
if TYPE_CHECKING:
from conftest import MultidictImplementation
here = Path(__file__).resolve().parent
def test_pickle(
any_multidict_class: type[MultiDict[int]], pickle_protocol: int
) -> None:
d = any_multidict_class([("a", 1), ("a", 2)])
pbytes = pickle.dumps(d, pickle_protocol)
obj = pickle.loads(pbytes)
assert d == obj
assert isinstance(obj, any_multidict_class)
def test_pickle_proxy(
any_multidict_class: type[MultiDict[int]],
any_multidict_proxy_class: type[MultiDictProxy[int]],
) -> None:
d = any_multidict_class([("a", 1), ("a", 2)])
proxy = any_multidict_proxy_class(d)
with pytest.raises(TypeError):
pickle.dumps(proxy)
def test_pickle_istr(
case_insensitive_str_class: type[istr], pickle_protocol: int
) -> None:
s = case_insensitive_str_class("str")
pbytes = pickle.dumps(s, pickle_protocol)
obj = pickle.loads(pbytes)
assert s == obj
assert isinstance(obj, case_insensitive_str_class)
def test_load_from_file(
any_multidict_class: type[MultiDict[int]],
multidict_implementation: "MultidictImplementation",
pickle_protocol: int,
) -> None:
multidict_class_name = any_multidict_class.__name__
pickle_file_basename = "-".join(
(
multidict_class_name.lower(),
multidict_implementation.tag,
)
)
d = any_multidict_class([("a", 1), ("a", 2)])
fname = f"{pickle_file_basename}.pickle.{pickle_protocol}"
p = here / fname
with p.open("rb") as f:
obj = pickle.load(f)
assert d == obj
assert isinstance(obj, any_multidict_class)
def test_load_istr_from_file(
case_insensitive_str_class: type[istr],
multidict_implementation: "MultidictImplementation",
pickle_protocol: int,
) -> None:
istr_class_name = case_insensitive_str_class.__name__
pickle_file_basename = "-".join(
(
istr_class_name.lower(),
multidict_implementation.tag,
)
)
s = case_insensitive_str_class("str")
fname = f"{pickle_file_basename}.pickle.{pickle_protocol}"
p = here / fname
with p.open("rb") as f:
obj = pickle.load(f)
assert s == obj
assert isinstance(obj, case_insensitive_str_class)
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