"""Unit + integration tests for the LLM-fallback CSV parser."""
from __future__ import annotations

import pytest


def test_csv_format_template_model_columns():
    """Model exposes every column the spec requires, with correct types."""
    from sqlalchemy import inspect

    from app.models import CsvFormatTemplate

    cols = {c.name: c for c in inspect(CsvFormatTemplate).columns}
    assert "fingerprint" in cols
    assert "headers" in cols
    assert "sample_row" in cols
    assert "mapping" in cols
    assert "preamble_rows" in cols
    assert "delimiter" in cols
    assert "broker_label" in cols
    assert "first_seen_at" in cols
    assert "use_count" in cols
    assert "last_used_at" in cols
    assert "llm_model" in cols
    assert "llm_cost_usd" in cols
    # Crucially, no user attribution.
    assert "user_id" not in cols
    assert "first_seen_user_id" not in cols
    # Fingerprint is the cache key.
    assert cols["fingerprint"].unique is True
    assert cols["fingerprint"].nullable is False