wehub-resource-sync
b4fbd6fe9f
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57 lines
2.0 KiB
Python
57 lines
2.0 KiB
Python
"""Cross-platform regression for the deferred-SIGINT re-delivery in sync-back.
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``_sync_back_once`` defers a Ctrl+C that lands mid-sync, then re-delivers it once
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the sync completes. It must do so via ``signal.raise_signal`` — which invokes the
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handler through C ``raise()`` on every platform — and NOT via
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``os.kill(os.getpid(), signal.SIGINT)``: on Windows the latter routes SIGINT (2)
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to ``TerminateProcess`` and hard-kills the whole CLI instead of raising
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``KeyboardInterrupt``.
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Unlike ``test_file_sync_back.py`` this module does not depend on ``fcntl`` (the
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locked sync body is stubbed), so it runs on Windows too — the platform the bug
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actually manifests on.
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"""
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from __future__ import annotations
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import os
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import signal
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from tools.environments.file_sync import FileSyncManager
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def _make_manager() -> FileSyncManager:
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return FileSyncManager(
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get_files_fn=lambda: {},
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upload_fn=lambda *a, **k: None,
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delete_fn=lambda *a, **k: None,
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)
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def test_deferred_sigint_redelivered_via_raise_signal(tmp_path, monkeypatch):
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mgr = _make_manager()
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# Simulate a Ctrl+C arriving during the sync body: invoke the deferring
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# handler that _sync_back_once installed, so `deferred_sigint` is populated.
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def fake_locked(lock_path):
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signal.getsignal(signal.SIGINT)(signal.SIGINT, None)
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monkeypatch.setattr(mgr, "_sync_back_locked", fake_locked)
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raised: list[int] = []
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killed: list[tuple[int, int]] = []
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monkeypatch.setattr(
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"tools.environments.file_sync.signal.raise_signal", raised.append
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)
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monkeypatch.setattr(
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"tools.environments.file_sync.os.kill",
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lambda pid, sig: killed.append((pid, sig)),
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)
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mgr._sync_back_once(tmp_path / "sync.lock")
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# The deferred Ctrl+C is re-delivered cross-platform via raise_signal,
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assert raised == [signal.SIGINT]
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# and never through os.kill(getpid, SIGINT) (which hard-kills on Windows).
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assert (os.getpid(), signal.SIGINT) not in killed
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