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from __future__ import annotations
import os
import subprocess
import sys
from pathlib import Path
import execnet
import pytest
# We use the execnet folder in order to avoid triggering a missing apipkg.
pyimportdir = os.fspath(Path(execnet.__file__).parent)
class PythonWrapper:
def __init__(self, executable: str, tmp_path: Path) -> None:
self.executable = executable
self.tmp_path = tmp_path
def dump(self, obj_rep: str) -> bytes:
script_file = self.tmp_path.joinpath("dump.py")
script_file.write_text(
f"""
import sys
sys.path.insert(0, {pyimportdir!r})
import gateway_base as serializer
sys.stdout = sys.stdout.detach()
sys.stdout.write(serializer.dumps_internal({obj_rep}))
"""
)
res = subprocess.run(
[str(self.executable), str(script_file)], capture_output=True, check=True
)
return res.stdout
def load(self, data: bytes) -> list[str]:
script_file = self.tmp_path.joinpath("load.py")
script_file.write_text(
rf"""
import sys
sys.path.insert(0, {pyimportdir!r})
import gateway_base as serializer
from io import BytesIO
data = {data!r}
io = BytesIO(data)
loader = serializer.Unserializer(io)
obj = loader.load()
sys.stdout.write(type(obj).__name__ + "\n")
sys.stdout.write(repr(obj))
"""
)
res = subprocess.run(
[str(self.executable), str(script_file)],
capture_output=True,
check=True,
)
return res.stdout.decode("ascii").splitlines()
def __repr__(self) -> str:
return f"<PythonWrapper for {self.executable}>"
@pytest.fixture
def py3(tmp_path: Path) -> PythonWrapper:
return PythonWrapper(sys.executable, tmp_path)
@pytest.fixture
def dump(py3: PythonWrapper):
return py3.dump
@pytest.fixture
def load(py3: PythonWrapper):
return py3.load
simple_tests = [
# expected before/after repr
("int", "4"),
("float", "3.25"),
("complex", "(1.78+3.25j)"),
("list", "[1, 2, 3]"),
("tuple", "(1, 2, 3)"),
("dict", "{(1, 2, 3): 32}"),
]
@pytest.mark.parametrize(["tp_name", "repr"], simple_tests)
def test_simple(tp_name, repr, dump, load) -> None:
p = dump(repr)
tp, v = load(p)
assert tp == tp_name
assert v == repr
def test_set(load, dump) -> None:
p = dump("set((1, 2, 3))")
tp, v = load(p)
assert tp == "set"
# assert v == "{1, 2, 3}" # ordering prevents this assertion
assert v.startswith("{") and v.endswith("}")
assert "1" in v and "2" in v and "3" in v
p = dump("set()")
tp, v = load(p)
assert tp == "set"
assert v == "set()"
def test_frozenset(load, dump):
p = dump("frozenset((1, 2, 3))")
tp, v = load(p)
assert tp == "frozenset"
assert v == "frozenset({1, 2, 3})"
def test_long(load, dump) -> None:
really_big = "9223372036854775807324234"
p = dump(really_big)
tp, v = load(p)
assert tp == "int"
assert v == really_big
def test_bytes(dump, load) -> None:
p = dump("b'hi'")
tp, v = load(p)
assert tp == "bytes"
assert v == "b'hi'"
def test_str(dump, load) -> None:
p = dump("'xyz'")
tp, s = load(p)
assert tp == "str"
assert s == "'xyz'"
def test_unicode(load, dump) -> None:
p = dump("u'hi'")
tp, s = load(p)
assert tp == "str"
assert s == "'hi'"
def test_bool(dump, load) -> None:
p = dump("True")
tp, s = load(p)
assert s == "True"
assert tp == "bool"
def test_none(dump, load) -> None:
p = dump("None")
tp, s = load(p)
assert s == "None"
def test_tuple_nested_with_empty_in_between(dump, load) -> None:
p = dump("(1, (), 3)")
tp, s = load(p)
assert tp == "tuple"
assert s == "(1, (), 3)"
def test_py2_string_loads() -> None:
"""Regression test for #267."""
assert execnet.loads(b"\x02M\x00\x00\x00\x01aQ") == b"a"
|
