def test_canonical_identity_excludes_tenant_fiscal_context():
    from central.app.ai.kb_consolidation import canonical_product_id

    a = canonical_product_id({"gtin": "7891234567895", "ncm": "22011000", "database": "A"})
    b = canonical_product_id({"gtin": "7891234567895", "ncm": "22019000", "database": "B"})
    assert a == b == "GTIN:7891234567895"


def test_conflicts_are_conservative():
    from central.app.ai.kb_consolidation import NCM_CONFLICT, PACKAGING_VARIATION, classify_conflict

    assert classify_conflict([
        {"gtin": "7891234567895", "ncm": "22011000", "normalized_description": "AGUA MINERAL", "package_quantity": "500"},
        {"gtin": "7891234567895", "ncm": "22019000", "normalized_description": "AGUA MINERAL", "package_quantity": "500"},
    ]) == NCM_CONFLICT
    assert classify_conflict([
        {"gtin": "7891234567895", "ncm": "22011000", "normalized_description": "AGUA MINERAL", "package_quantity": "500"},
        {"gtin": "7891234567895", "ncm": "22011000", "normalized_description": "AGUA MINERAL", "package_quantity": "1L"},
    ]) == PACKAGING_VARIATION


def test_payload_audit_reports_observable_coverage():
    from central.app.ai.kb_consolidation import audit_payload

    report = audit_payload({"products": [
        {"gtin": "7891234567895", "ncm": "22011000", "normalized_description": "AGUA", "observations": [{"database": "A"}]},
        {"gtin": "7891234567895", "ncm": "22019000", "normalized_description": "AGUA", "observations": [{"database": "B"}]},
    ]}, historical_conflicts=163)
    assert report["historical_conflicts_reported"] == 163
    assert report["observable_conflicts_audited"] == 1
    assert report["unobservable_historical_conflicts"] == 162