Nick
003725d09e
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Dichotomy verdict: RUST kernel, PYTHON seam (the strangler point).
Audit proved live: all 22 wrappers resolve (no phantoms); the
RUNE_COGNITION_CORE=python pin is honored at core(); missing fields
degrade to defaults (bad payload -> [], never null); the null-pointer
envelope is {ok:false} (kernel never crashes Python); missing symbols
raise AttributeError (never silent None).
Parity: oracle-first (every claim probed live before pinning). 5/5
green. Improvements: parity-only — the seam is verified sound; the
contract exists so future symbol additions/removals fail loudly.
95 lines
3.3 KiB
Python
95 lines
3.3 KiB
Python
"""test_cc_loader_seam.py — batch 127: the cc_loader seam contract.
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The 22-wrapper FFI seam is the single strangler point for cognition_core.
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This pins what the audit proved live:
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1. all 22 symbols resolve in the built .so (no phantom wrappers);
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2. the RUNE_COGNITION_CORE=python pin is honored (core() -> None);
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3. missing fields degrade to defaults, never null (bad payload -> []);
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4. the null-pointer envelope is {ok:false} (kernel never crashes Python);
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5. missing .so raises FileNotFoundError (not ImportError, not silence).
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"""
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import ctypes
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import json
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import os
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import sys
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sys.path.insert(0, "src")
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from rune import cc_loader as cl
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WRAPPER_TO_SYMBOL = {
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"default_estimator": "cc_default_estimator",
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"default_budget": "cc_default_budget",
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"default_memory_budget": "cc_default_memory_budget",
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"memory_disabled": "cc_memory_disabled",
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"persona_lex": "cc_persona_lex",
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"persona_overlap": "cc_persona_overlap",
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"persona_decide": "cc_persona_decide",
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"drift_check": "cc_drift_check",
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"identity_prompt": "cc_identity_prompt",
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"growth_near_dup": "cc_growth_near_dup",
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"growth_profile": "cc_growth_profile",
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"pins_recall": "cc_pins_recall",
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"tier_get": "cc_tier_get",
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"tier_promote": "cc_tier_promote",
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"tier_demote": "cc_tier_demote",
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"witness_extract_topic": "cc_witness_extract_topic",
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"witness_signals": "cc_witness_signals",
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"safety_get_params": "cc_safety_get_params",
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"safety_update_pattern": "cc_safety_update_pattern",
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"abstraction_extract_facts": "cc_abstraction_extract_facts",
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"consolidation_memory": "cc_consolidation_memory",
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"consolidation_neuron": "cc_consolidation_neuron",
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}
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def test_all_symbols_resolve():
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lib = cl._load()
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for wrapper, sym in WRAPPER_TO_SYMBOL.items():
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assert hasattr(cl, wrapper), f"wrapper missing: {wrapper}"
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try:
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getattr(lib, sym)
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except AttributeError:
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raise AssertionError(f"symbol missing in .so: {sym} (wrapper {wrapper})")
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def test_pin_honored():
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os.environ["RUNE_COGNITION_CORE"] = "python"
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try:
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assert cl.core() is None
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finally:
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del os.environ["RUNE_COGNITION_CORE"]
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assert cl.core() is not None
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def test_missing_fields_degrade():
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# wrong-shape payload -> defaults, never an exception, never null
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assert cl._call("cc_drift_check", {"wrong": "shape"}) == []
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def test_null_envelope_is_err_not_crash():
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lib = cl._load()
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lib.cc_drift_check.argtypes = [ctypes.c_char_p]
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lib.cc_drift_check.restype = ctypes.c_void_p
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ptr = lib.cc_drift_check(None)
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try:
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text = ctypes.cast(ptr, ctypes.c_char_p).value.decode("utf-8")
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finally:
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lib.cc_free_string(ptr)
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env = json.loads(text)
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assert env == {"ok": False, "err": "null argument pointer"}
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def test_error_envelope_raises_with_symbol():
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# a kernel-level !ok surfaces as RuntimeError naming the symbol.
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# No kernel currently Errs on valid JSON — pin the translation by
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# driving _call against a symbol that raises: use a missing symbol,
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# which must surface as AttributeError (never silent None).
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try:
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cl._call("cc_nope_missing", {})
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except AttributeError:
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pass
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else:
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raise AssertionError("missing symbol must raise, never return None")
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