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group_fqcd_jr/tests/unit/service/test_suitability_service.py
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Python

from datetime import UTC, datetime, timedelta
import pytest
from pydantic import ValidationError
from app.core.contracts import RequestContext
from app.service.suitability_service import (
RiskAuthorityProfile,
SuitabilityService,
SuitabilityToolInput,
suitability_tool_handler,
)
def _request(**overrides: object) -> SuitabilityToolInput:
values: dict[str, object] = {
"customer_id": "7",
"product_risk_level": 3,
"product_requires_disclosure": True,
}
values.update(overrides)
return SuitabilityToolInput.model_validate(values)
def _context() -> RequestContext:
return RequestContext(user_id="7", trace_id="trace-suitability")
def _profile(
customer_risk_level: int | None = 3,
*,
valid_until: datetime | None = None,
authority_reason: str = "AUTHORITY_OK",
) -> RiskAuthorityProfile:
return RiskAuthorityProfile(
customer_id="7",
customer_risk_level=customer_risk_level,
valid_until=valid_until or datetime.now(UTC) + timedelta(days=30),
authority_reason=authority_reason, # type: ignore[arg-type]
)
@pytest.mark.asyncio
@pytest.mark.parametrize(
("customer", "product", "allowed"),
[(1, 1, True), (1, 2, False), (3, 2, True), (5, 5, True)],
)
async def test_risk_level_boundary(
monkeypatch: pytest.MonkeyPatch,
customer: int,
product: int,
allowed: bool,
) -> None:
service = SuitabilityService()
async def load_profile(_customer_id: str) -> RiskAuthorityProfile:
return _profile(customer)
monkeypatch.setattr(service, "_load_authority_profile", load_profile)
decision = await service.evaluate(
_request(product_risk_level=product), _context()
)
assert decision.allowed is allowed
assert decision.reason_code == ("SUITABLE" if allowed else "RISK_LEVEL_MISMATCH")
@pytest.mark.asyncio
async def test_expired_assessment_is_denied(monkeypatch: pytest.MonkeyPatch) -> None:
now = datetime(2026, 9, 9, tzinfo=UTC)
service = SuitabilityService()
async def load_profile(_customer_id: str) -> RiskAuthorityProfile:
return _profile(valid_until=now - timedelta(seconds=1))
monkeypatch.setattr(service, "_load_authority_profile", load_profile)
decision = await service.evaluate(_request(), _context(), now=now)
assert decision.allowed is False
assert decision.reason_code == "ASSESSMENT_EXPIRED"
assert decision.requires_recording is True
@pytest.mark.asyncio
async def test_missing_assessment_is_denied(monkeypatch: pytest.MonkeyPatch) -> None:
service = SuitabilityService()
async def load_profile(_customer_id: str) -> RiskAuthorityProfile:
return _profile(None, authority_reason="ASSESSMENT_MISSING")
monkeypatch.setattr(service, "_load_authority_profile", load_profile)
decision = await service.evaluate(_request(), _context())
assert decision.allowed is False
assert decision.reason_code == "ASSESSMENT_MISSING"
def test_tool_input_rejects_client_supplied_authority_fields() -> None:
with pytest.raises(ValidationError):
SuitabilityToolInput(
customer_id="7",
customer_risk_level=3,
product_risk_level=3,
)
def test_tool_input_rejects_invalid_customer_id() -> None:
with pytest.raises(ValidationError):
SuitabilityToolInput(customer_id="customer-7", product_risk_level=3)
@pytest.mark.asyncio
async def test_tool_handler_uses_current_service_entrypoint(
monkeypatch: pytest.MonkeyPatch,
) -> None:
class DummySession:
def add(self, _item: object) -> None:
pass
async def __aenter__(self) -> "DummySession":
return self
async def __aexit__(self, *_args: object) -> None:
pass
def begin(self) -> "DummySession":
return self
service = SuitabilityService(session_factory=lambda: DummySession())
async def load_profile(_customer_id: str) -> RiskAuthorityProfile:
return _profile(1)
monkeypatch.setattr(service, "_load_authority_profile", load_profile)
monkeypatch.setattr(
"app.service.suitability_service.SuitabilityService",
lambda: service,
)
result = await suitability_tool_handler(
SuitabilityToolInput(customer_id="7", product_risk_level=2),
_context(),
)
assert result["allowed"] is False
assert result["reason_code"] == "RISK_LEVEL_MISMATCH"