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39 lines
1.3 KiB
Python
39 lines
1.3 KiB
Python
"""Regression coverage for malformed chain timestamps."""
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from typing import Any
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from services.infonet.time_validity import chain_majority_time, is_event_too_future
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def _event(node_id: str, timestamp: Any) -> dict[str, Any]:
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return {"node_id": node_id, "timestamp": timestamp}
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def test_chain_majority_time_ignores_malformed_and_nonfinite_timestamps() -> None:
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chain = [
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_event("valid-a", 10.0),
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_event("bad-text", "not-a-timestamp"),
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_event("bad-nan", float("nan")),
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_event("bad-inf", float("inf")),
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_event("valid-b", 20.0),
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]
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assert chain_majority_time(chain) == 15.0
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def test_chain_majority_time_accepts_finite_numeric_strings() -> None:
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chain = [_event("a", "10.5"), _event("b", "20.5")]
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assert chain_majority_time(chain) == 15.5
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def test_future_check_fails_closed_for_invalid_timestamps() -> None:
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assert is_event_too_future(_event("bad-text", "not-a-timestamp"), chain_time=100.0)
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assert is_event_too_future(_event("bad-nan", float("nan")), chain_time=100.0)
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assert is_event_too_future(_event("bad-inf", float("inf")), chain_time=100.0)
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def test_future_check_preserves_valid_timestamp_behavior() -> None:
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assert not is_event_too_future(_event("near", 110.0), chain_time=100.0)
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assert is_event_too_future(_event("far", 10_000.0), chain_time=100.0)
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