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# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
import os
import pkgutil
import subprocess
import sys
import typing
import cryptography
def find_all_modules() -> typing.List[str]:
return sorted(
mod
for _, mod, _ in pkgutil.walk_packages(
cryptography.__path__,
prefix=cryptography.__name__ + ".",
)
)
def test_no_circular_imports(subtests):
env = os.environ.copy()
env["PYTHONPATH"] = os.pathsep.join(sys.path)
# When using pytest-cov it attempts to instrument subprocesses. This
# causes the memleak tests to raise exceptions.
# we don't need coverage so we remove the env vars.
env.pop("COV_CORE_CONFIG", None)
env.pop("COV_CORE_DATAFILE", None)
env.pop("COV_CORE_SOURCE", None)
for module in find_all_modules():
with subtests.test():
argv = [sys.executable, "-c", f"__import__({module!r})"]
subprocess.check_call(argv, env=env)
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