first ruggedy draft

tests/test_ingestion.py

@@ -0,0 +1,83 @@
+from __future__ import annotations
+
+from datetime import date
+from decimal import Decimal
+
+from mousehold_api.schemas import ManualObservationCreate, SplitLineCreate
+from mousehold_api.services.ingestion import create_observation_with_candidate
+from mousehold_domain import FinancialEventStatus, FinancialEventType, ObservationStatus, SourceType
+from sqlalchemy.orm import Session
+
+
+def test_duplicate_observation_is_flagged_without_second_event(
+    session: Session,
+    household_setup: dict[str, str],
+) -> None:
+    payload = ManualObservationCreate(
+        household_id=household_setup["household_id"],
+        owner_user_id=household_setup["user_a_id"],
+        source_account_id=household_setup["account_a_id"],
+        source_reference="same-manual-input",
+        amount=Decimal("120.00"),
+        currency="EUR",
+        event_date=date(2026, 1, 1),
+        merchant="Groceries",
+        description="Weekly groceries",
+        split_lines=[
+            SplitLineCreate(user_id=household_setup["user_a_id"], share_amount=Decimal("60.00")),
+            SplitLineCreate(user_id=household_setup["user_b_id"], share_amount=Decimal("60.00")),
+        ],
+    )
+
+    first_observation, first_event = create_observation_with_candidate(session, payload)
+    second_observation, second_event = create_observation_with_candidate(session, payload)
+
+    assert first_observation.status == ObservationStatus.CANDIDATE_CREATED
+    assert first_event is not None
+    assert second_observation.status == ObservationStatus.DUPLICATE_SOURCE
+    assert second_event is None
+
+
+def test_email_with_due_date_becomes_outstanding_event(
+    session: Session,
+    household_setup: dict[str, str],
+) -> None:
+    payload = ManualObservationCreate(
+        household_id=household_setup["household_id"],
+        owner_user_id=household_setup["user_a_id"],
+        source_type=SourceType.KLARNA_EMAIL,
+        amount=Decimal("84.00"),
+        currency="EUR",
+        event_date=date(2026, 1, 3),
+        due_date=date(2026, 2, 2),
+        merchant="Klarna Shop",
+        description="Pay later purchase",
+    )
+
+    _observation, event = create_observation_with_candidate(session, payload)
+
+    assert event is not None
+    assert event.status == FinancialEventStatus.OUTSTANDING
+
+
+def test_bank_provider_debit_becomes_liability_payment(
+    session: Session,
+    household_setup: dict[str, str],
+) -> None:
+    payload = ManualObservationCreate(
+        household_id=household_setup["household_id"],
+        owner_user_id=household_setup["user_a_id"],
+        source_account_id=household_setup["account_a_id"],
+        source_type=SourceType.BANK_CSV,
+        amount=Decimal("250.00"),
+        currency="EUR",
+        event_date=date(2026, 1, 15),
+        merchant="Visa Kartenabrechnung",
+        description="Monthly credit card payment",
+    )
+
+    _observation, event = create_observation_with_candidate(session, payload)
+
+    assert event is not None
+    assert event.event_type == FinancialEventType.LIABILITY_PAYMENT
+    assert event.status == FinancialEventStatus.CONFIRMED