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import os
import multiprocessing
import re
import signal
from functools import partial
from unittest.mock import patch
from pkgdev.mangle import Mangler
from pkgdev.scripts.pkgdev_commit import Change
import pytest
from snakeoil.cli.exceptions import UserException
def fake_change(s):
return Change("/repo", "A", str(s))
class TestMangler:
def test_nonexistent_file(self, tmp_path):
path = tmp_path / "nonexistent"
assert list(Mangler([fake_change(path)])) == []
def test_empty_file(self, tmp_path):
path = tmp_path / "empty"
path.touch()
assert list(Mangler([fake_change(path)])) == []
def test_skipped_file(self, tmp_path):
paths = [(tmp_path / x) for x in ("file", "file.patch")]
for p in paths:
p.write_text("# comment")
# skip patch files
skip_regex = re.compile(r".+\.patch$")
mangled_paths = set(Mangler(map(fake_change, paths), skip_regex=skip_regex))
assert mangled_paths == {str(tmp_path / "file")}
for p in paths:
p.write_text("# comment")
# don't skip any files
mangled_paths = set(Mangler(map(fake_change, paths)))
assert mangled_paths == set(map(str, paths))
def test_nonmangled_file(self, tmp_path):
path = tmp_path / "file"
path.write_text("# comment\n")
assert list(Mangler([fake_change(path)])) == []
def test_mangled_file(self, tmp_path):
path = tmp_path / "file"
path.write_text("# comment")
assert list(Mangler([fake_change(path)])) == [str(path)]
assert path.read_text() == "# comment\n"
def test_iterator_exceptions(self, tmp_path):
"""Test parallelized iterator against unhandled exceptions."""
path = tmp_path / "file"
path.write_text("# comment\n")
def _mangle_func(self, data):
raise Exception("func failed")
with patch("pkgdev.mangle.Mangler._mangle", _mangle_func):
with pytest.raises(UserException, match="Exception: func failed"):
list(Mangler([fake_change(path)]))
def test_sigint_handling(self, tmp_path):
"""Verify SIGINT is properly handled by the parallelized pipeline."""
path = tmp_path / "file"
path.write_text("# comment\n")
def run(queue):
"""Mangler run in a separate process that gets interrupted."""
import sys
import time
from unittest.mock import patch
from pkgdev.mangle import Mangler
def sleep():
"""Notify testing process then sleep."""
queue.put("ready")
time.sleep(100)
with patch("pkgdev.mangle.Mangler.__iter__") as fake_iter:
fake_iter.side_effect = partial(sleep)
try:
iter(Mangler([fake_change(path)]))
except KeyboardInterrupt:
queue.put(None)
sys.exit(0)
queue.put(None)
sys.exit(1)
mp_ctx = multiprocessing.get_context("fork")
queue = mp_ctx.SimpleQueue()
p = mp_ctx.Process(target=run, args=(queue,))
p.start()
# wait for pipeline object to be fully initialized then send SIGINT
for _ in iter(queue.get, None):
os.kill(p.pid, signal.SIGINT)
p.join()
assert p.exitcode == 0
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