tokencrawler/.venv/lib/python3.9/site-packages/setuptools/tests/integration/helpers.py
2022-03-17 22:16:30 +01:00

61 lines
2.1 KiB
Python

"""Reusable functions and classes for different types of integration tests.
For example ``Archive`` can be used to check the contents of distribution built
with setuptools, and ``run`` will always try to be as verbose as possible to
facilitate debugging.
"""
import os
import subprocess
import tarfile
from zipfile import ZipFile
def run(cmd, env=None):
r = subprocess.run(
cmd,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
universal_newlines=True,
env={**os.environ, **(env or {})}
# ^-- allow overwriting instead of discarding the current env
)
out = r.stdout + "\n" + r.stderr
# pytest omits stdout/err by default, if the test fails they help debugging
print("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~")
print(f"Command: {cmd}\nreturn code: {r.returncode}\n\n{out}")
if r.returncode == 0:
return out
raise subprocess.CalledProcessError(r.returncode, cmd, r.stdout, r.stderr)
class Archive:
"""Compatibility layer for ZipFile/Info and TarFile/Info"""
def __init__(self, filename):
self._filename = filename
if filename.endswith("tar.gz"):
self._obj = tarfile.open(filename, "r:gz")
elif filename.endswith("zip"):
self._obj = ZipFile(filename)
else:
raise ValueError(f"{filename} doesn't seem to be a zip or tar.gz")
def __iter__(self):
if hasattr(self._obj, "infolist"):
return iter(self._obj.infolist())
return iter(self._obj)
def get_name(self, zip_or_tar_info):
if hasattr(zip_or_tar_info, "filename"):
return zip_or_tar_info.filename
return zip_or_tar_info.name
def get_content(self, zip_or_tar_info):
if hasattr(self._obj, "extractfile"):
content = self._obj.extractfile(zip_or_tar_info)
if content is None:
msg = f"Invalid {zip_or_tar_info.name} in {self._filename}"
raise ValueError(msg)
return str(content.read(), "utf-8")
return str(self._obj.read(zip_or_tar_info), "utf-8")