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https://github.com/BigBodyCobain/Shadowbroker.git
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71 lines
2.2 KiB
Python
71 lines
2.2 KiB
Python
"""Regression coverage for malformed/non-finite market snapshot inputs."""
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import math
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import pytest
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from services.infonet.markets.snapshot import build_snapshot, find_snapshot
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def _prediction(node, side, stake, *, timestamp, sequence):
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payload = {"market_id": "m1", "side": side}
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if stake is not None:
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payload["stake_amount"] = stake
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return {
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"event_type": "prediction_place",
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"node_id": node,
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"timestamp": timestamp,
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"sequence": sequence,
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"payload": payload,
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}
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def test_nonfinite_paid_stake_does_not_poison_snapshot():
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chain = [
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_prediction("alice", "yes", None, timestamp=100.0, sequence=1),
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_prediction("mallory", "no", float("inf"), timestamp=101.0, sequence=2),
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]
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snapshot = build_snapshot("m1", chain, frozen_at=200.0)
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assert snapshot["frozen_participant_count"] == 1
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assert snapshot["frozen_predictor_ids"] == ["alice"]
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assert snapshot["frozen_total_stake"] == 0.0
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assert snapshot["frozen_probability_state"] == {"yes": 1.0, "no": 0.0}
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assert all(math.isfinite(v) for v in snapshot["frozen_probability_state"].values())
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def test_malformed_ordering_metadata_does_not_break_snapshot_build():
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chain = [
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_prediction("alice", "yes", 5.0, timestamp="bad", sequence="bad"),
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_prediction("bob", "no", 5.0, timestamp=100.0, sequence=1),
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]
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snapshot = build_snapshot("m1", chain, frozen_at=200.0)
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assert snapshot["frozen_participant_count"] == 2
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assert snapshot["frozen_total_stake"] == 10.0
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assert snapshot["frozen_probability_state"] == {"yes": 0.5, "no": 0.5}
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def test_invalid_snapshot_ordering_does_not_outrank_valid_snapshot():
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invalid = {
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"event_type": "market_snapshot",
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"timestamp": "bad",
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"sequence": "bad",
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"payload": {"market_id": "m1", "marker": "invalid"},
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}
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valid = {
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"event_type": "market_snapshot",
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"timestamp": 100.0,
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"sequence": 1,
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"payload": {"market_id": "m1", "marker": "valid"},
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}
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assert find_snapshot("m1", [invalid, valid])["marker"] == "valid"
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def test_nonfinite_frozen_at_is_rejected():
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with pytest.raises(ValueError, match="frozen_at must be finite"):
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build_snapshot("m1", [], frozen_at=float("nan"))
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