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test: A.3 end-to-end regression - weak evidence never becomes a write candidate

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Adds test_weak_composed_evidence_never_becomes_a_candidate_regardless_of_the_write_flag,
proving from the real field_contract.resolve_product (not an isolated stub)
that the beer misclassification fixed on master (see
"fix: product_role never infers OWN_PRODUCTION from a single COMPOSICAO
occurrence") can never reach select_candidates as an AUTO_FILL_SAFE
candidate, independent of cfop_ippt_write_mode/write_gate.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
gti
2026-09-28 10:53:20 -03:00
co-authored by Claude Sonnet 5
parent 1abb7e516e
commit a2bad050f9
1 changed files with 26 additions and 0 deletions
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agent/tests/test_cfop_ippt_auto_apply.py
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@@ -97,6 +97,32 @@ def test_select_candidates_only_change_and_write_eligible_cfop_or_ippt():
assert all(c["field"] in apply_mod.ALLOWED_FIELDS for c in cands)
def test_weak_composed_evidence_never_becomes_a_candidate_regardless_of_the_write_flag():
"""Missão 4 / Bloco A.3: a cell whose role evidence is weak (field_contract itself refuses to
classify it OWN_PRODUCTION/RESALE with confidence) must never reach select_candidates as
AUTO_FILL_SAFE - proven end-to-end from the real resolver, not just asserted in isolation.
This holds independently of cfop_ippt_write_mode/write_gate, which only gates whether
apply_candidates() is ever invoked - it never affects what counts as a candidate."""
from central.app.field_contract import resolve_product, Context, WRITE_FIELDS
def product(**kw):
p = {f: None for f in WRITE_FIELDS}
p.update({"CODIGO": "000321", "PRODUTO": "CERVEJA LONG NECK NOVA SCHIN", "CODGRUPO": "G1", "TIPO": "VENDA", "PROD_COZINHA": None, "PRODUTO_SERVICO": None,
"CLASSIFICACAO_FISCAL": "22030000", "CFOP": "5102", "CSOSN": "102", "CST": "000", "SITUACAO_TRIBUTARIA": "T", "IAT": "A", "IPPT": "T",
"INCIDENCIA_PISCOFINS": "NENHUMA", "PISCOFINS": "N"})
p.update(kw)
return p
decision = {"status": "EXACT_NCM", "cest_status": "NO_CEST_MAPPING_FOUND", "ipi_status": "IPI_RESOLVED", "ba_st_mva_status": "NO_MVA_MAPPING_FOUND", "dataset_versions": {},
"classification": {"ncm": "22030000", "ipi": {"rate_kind": "NUMERIC", "rate_numeric": 3.9, "rate": "3.9"}, "ipi_candidates": [], "cest": None, "cest_candidates": [], "ba_st_mva": None, "ba_st_mva_candidates": []}}
refs = {"cfop_valid": {"5101", "5102"}, "csosn": {"102"}, "cst_icms": set(), "cst_pis": set(), "cst_cofins": set(), "origem": set("012345678"), "fcp_uf": {}, "cbs_rate_2026": None, "cclasstrib_count": 0}
co = {"uf": "BA", "crt": "1", "contribuinte_ipi": "N", "company_code": "000001"}
ev_weak = {"recipes": set(), "composed": set(), "composed_ratio": {"000321": {"composed": 1, "other": 19}}, "purchases": {}, "stock_entry": {"000321": True}, "stock_in": {"000321": True}}
result = resolve_product(product(), decision, co, refs, ev_weak, Context([]))
candidates, total = apply_mod.select_candidates({"000321": result})
assert total == 0 and candidates == [] # the weak-evidence beer never becomes a write candidate
def test_select_candidates_respects_limit():
results = {f"{i:06d}": {"CFOP": {"state": CHANGE, "current": None, "proposed": "5102", "write_eligible": True, "reason": "R"}} for i in range(5)}
cands, total = apply_mod.select_candidates(results, limit=2)