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BigBodyCobain
88 lines
2.8 KiB
Python
88 lines
2.8 KiB
Python
"""Sprint 3 — temporal burst adversarial tests.
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Maps to IMPLEMENTATION_PLAN.md §7.1 Sprint 3 row:
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"Temporal burst flags 5+ upreps within 5 min."
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"""
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from __future__ import annotations
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from services.infonet.config import CONFIG
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from services.infonet.reputation.anti_gaming import is_in_burst, temporal_multiplier
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from services.infonet.tests._chain_factory import make_event
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_BURST_WINDOW = float(CONFIG["temporal_burst_window_sec"])
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_BURST_THRESHOLD = int(CONFIG["temporal_burst_min_upreps"])
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def _uprep(author: str, target: str, ts: float, seq: int = 1) -> dict:
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return make_event(
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"uprep", author,
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{"target_node_id": target, "target_event_id": f"e-{author}-{target}-{seq}"},
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timestamp=ts, sequence=seq,
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)
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def test_no_upreps_is_not_burst():
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assert not is_in_burst("alice", 1000.0, [])
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def test_below_threshold_is_not_burst():
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chain = [
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_uprep(f"n{i}", "alice", ts=1000.0 + i, seq=i + 1)
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for i in range(_BURST_THRESHOLD - 1)
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]
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assert not is_in_burst("alice", 1000.0, chain)
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def test_at_threshold_within_window_is_burst():
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chain = [
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_uprep(f"n{i}", "alice", ts=1000.0 + i, seq=i + 1)
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for i in range(_BURST_THRESHOLD)
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]
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# All within ~5 seconds of each other → well inside the 5-min window.
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assert is_in_burst("alice", 1000.0, chain)
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def test_burst_window_is_centered_not_forward_only():
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"""An attacker pre-warming events BEFORE the suspect uprep should
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still trigger the burst — window is centered on the evaluated ts.
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"""
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pre = _BURST_THRESHOLD - 1
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chain = [
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_uprep(f"n{i}", "alice", ts=1000.0 - i * 10, seq=i + 1)
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for i in range(pre)
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]
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chain.append(_uprep("nlast", "alice", ts=1000.0, seq=99))
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assert is_in_burst("alice", 1000.0, chain)
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def test_outside_window_is_not_burst():
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"""Upreps spread across more than the burst window — none of any
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sub-group of 5 fits inside a 5-min slice."""
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spacing = _BURST_WINDOW # one full window apart
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chain = [
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_uprep(f"n{i}", "alice", ts=1_000_000.0 + i * spacing, seq=i + 1)
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for i in range(_BURST_THRESHOLD)
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]
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# Evaluate around the middle entry — only that one falls inside its window
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middle_ts = 1_000_000.0 + (_BURST_THRESHOLD // 2) * spacing
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assert not is_in_burst("alice", middle_ts, chain)
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def test_other_targets_do_not_count_toward_burst():
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"""Upreps to a different target don't contribute."""
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chain = [
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_uprep(f"n{i}", "bob", ts=1000.0 + i, seq=i + 1)
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for i in range(_BURST_THRESHOLD)
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]
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assert not is_in_burst("alice", 1000.0, chain)
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def test_temporal_multiplier_in_burst_is_low():
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assert temporal_multiplier(True) == 0.2
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def test_temporal_multiplier_outside_burst_is_full():
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assert temporal_multiplier(False) == 1.0
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