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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647"""File trace distinguishes user edits from process supervision and atomic temporaries."""import osfrom pathlib import Pathimport sysimport tempfileimport unittest
sys.path.insert(0, str(Path(__file__).resolve().parents[2] / "priv" / "python"))import albedo_trace
class Capture: def __init__(self): self.trace = albedo_trace.Trace()
class TraceTest(unittest.TestCase): def test_atomic_replace_records_destination_without_temp_and_ignores_proc(self): with tempfile.TemporaryDirectory() as directory: target = Path(directory) / "file.py" temporary = Path(directory) / ".file.py.tmp" target.write_text("old\n") capture = Capture() albedo_trace.install(lambda: capture) # The audit hook observes only this capture; imports and cleanup run outside it. try: with open("/proc/46202/stat", "rb"): pass except OSError: pass try: os.listdir("/proc") except OSError: pass self.assertEqual(target.read_text(), "old\n") temporary.write_text("new\n") os.replace(temporary, target) trace = capture.trace.finish() self.assertEqual([item["target"] for item in trace["activities"]], [str(target)]) self.assertEqual([change["path"] for change in trace["changes"]], [str(target)]) self.assertEqual(trace["changes"][0]["kind"], "diff") self.assertEqual(trace["changes"][0]["added"], 1)
if __name__ == "__main__": unittest.main()