mirror of
https://github.com/kuhyx/wake-alarm.git
synced 2026-11-10 18:07:05 +01:00
Krzysztof kuhy Rudnicki
728e00cde7
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
71 lines
2.3 KiB
Python
71 lines
2.3 KiB
Python
"""Named events and the change-only state behind them."""
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from __future__ import annotations
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import json
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import logging
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from pathlib import Path
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from typing import TYPE_CHECKING
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from unittest.mock import patch
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from wake_alarm import _events
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from wake_alarm._events import emit, emit_on_change, last_value, remember
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if TYPE_CHECKING:
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import pytest
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def _records(caplog: pytest.LogCaptureFixture) -> list[logging.LogRecord]:
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return [r for r in caplog.records if hasattr(r, "event")]
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def test_emit_carries_event_and_fields(caplog: pytest.LogCaptureFixture) -> None:
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with caplog.at_level(logging.INFO):
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emit("rtc_armed", "wake at 06:50", epoch=5)
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(record,) = _records(caplog)
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assert record.event == "rtc_armed"
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assert record.fields == {"epoch": 5}
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assert "rtc_armed: wake at 06:50" in record.getMessage()
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def test_emit_on_change_logs_once_per_key(caplog: pytest.LogCaptureFixture) -> None:
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with caplog.at_level(logging.INFO):
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assert emit_on_change("fallback_tick", "a", "first")
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assert not emit_on_change("fallback_tick", "a", "again")
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assert emit_on_change("fallback_tick", "b", "changed")
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assert [r.getMessage() for r in _records(caplog)] == [
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"fallback_tick: first",
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"fallback_tick: changed",
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]
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assert last_value("fallback_tick") == "b"
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def test_remember_and_forget() -> None:
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remember("slot", "x")
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remember("slot", "x") # unchanged: no rewrite needed
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assert last_value("slot") == "x"
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remember("slot", None)
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assert last_value("slot") is None
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remember("slot", None) # forgetting nothing is a no-op
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assert not _events.EVENT_STATE_FILE.read_text().count("slot")
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def test_unreadable_or_odd_state_reads_empty() -> None:
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_events.EVENT_STATE_FILE.write_text("{nope")
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assert last_value("slot") is None
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_events.EVENT_STATE_FILE.write_text("[1, 2]")
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assert last_value("slot") is None
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_events.EVENT_STATE_FILE.write_text(json.dumps({"a": "x", "b": 3}))
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assert last_value("a") == "x"
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assert last_value("b") is None
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def test_write_failure_only_costs_a_repeat(caplog: pytest.LogCaptureFixture) -> None:
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with (
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patch.object(Path, "write_text", side_effect=OSError("ro")),
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caplog.at_level(logging.INFO),
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):
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remember("slot", "x")
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assert last_value("slot") is None
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assert "Cannot persist" in caplog.text
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