29 lines
847 B
Python
29 lines
847 B
Python
from __future__ import annotations
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from pathlib import Path
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import pytest
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from blackout_notifier.state import StateError, StateRepository, empty_state
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def test_state_round_trip_is_deterministic(tmp_path: Path) -> None:
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repository = StateRepository(tmp_path / "nested" / "outages.json")
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repository.save(empty_state())
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first = repository.path.read_text(encoding="utf-8")
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repository.save(repository.load())
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assert repository.load() == empty_state()
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assert repository.path.read_text(encoding="utf-8") == first
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def test_corrupt_state_fails_closed(tmp_path: Path) -> None:
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path = tmp_path / "outages.json"
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path.write_text("not json", encoding="utf-8")
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with pytest.raises(StateError, match="Cannot read state"):
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StateRepository(path).load()
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assert path.read_text(encoding="utf-8") == "not json"
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