SolitaryThinker
a9e5f6ee7a
Directory rename (git mv, history preserved) plus rewrite of all references: absolute imports in tests, the zero-dep runner, docstrings, comments, and the README. No behavior change. Run: python3 -m pytest v2/tests/ -q ; python3 v2/run_tests.py ; python3 -m v2.examples
46 lines
1.8 KiB
Python
46 lines
1.8 KiB
Python
"""ParityAligner + consistency ladder (design_v3 §9.1, §9.2)."""
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from __future__ import annotations
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import numpy as np
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from v2.parity import ConsistencyLevel, ParityAligner, array_diff, bit_identical, within
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def test_aligner_no_divergence_on_identical_runs():
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ref, cur = ParityAligner(), ParityAligner()
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for s in range(3):
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v = np.ones((2, 2)) * s
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ref.record_tap(s, "latents", v)
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cur.record_tap(s, "latents", v.copy())
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assert cur.first_divergence(ref) is None
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def test_aligner_reports_first_divergence_in_step_order():
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ref, cur = ParityAligner(), ParityAligner()
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ref.record_tap(0, "l", np.zeros(2)); cur.record_tap(0, "l", np.zeros(2))
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ref.record_tap(1, "l", np.zeros(2)); cur.record_tap(1, "l", np.ones(2)) # diverges here
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ref.record_tap(2, "l", np.zeros(2)); cur.record_tap(2, "l", np.full(2, 9))
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d = cur.first_divergence(ref)
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assert d is not None and d.where == "l@1" # first, not the bigger step-2 diff
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def test_aligner_respects_per_tap_tolerance():
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ref, cur = ParityAligner(), ParityAligner()
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ref.set_tolerance("l", atol=0.1)
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cur.set_tolerance("l", atol=0.1)
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ref.record_tap(0, "l", np.zeros(2)); cur.record_tap(0, "l", np.full(2, 0.05))
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assert cur.first_divergence(ref) is None # within tolerance
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cur.record_tap(0, "l", np.full(2, 0.05)) # idempotent re-record
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def test_consistency_ladder_ranks_increase():
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assert ConsistencyLevel.C0.rank < ConsistencyLevel.C1.rank < ConsistencyLevel.C2.rank
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assert ConsistencyLevel.C2.rank < ConsistencyLevel.C3.rank < ConsistencyLevel.C4.rank
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def test_numeric_helpers():
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assert bit_identical(np.ones(3), np.ones(3))
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assert within(np.ones(3), np.ones(3) + 1e-9, atol=1e-6)
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abs_d, rel_d = array_diff(np.array([1.0]), np.array([2.0]))
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assert abs_d == 1.0 and rel_d == 0.5
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