"""Tests für CSV-Vorlagen-Validierung (#71)."""

from csv_parser.template_validator import validate_csv_template


def test_validate_csv_template_rejects_invalid_row_processing():
    report = validate_csv_template(
        "nutrition",
        {"Datum": "date", "kcal": "kcal"},
        None,
        {"group_by": ["date"], "aggregates": {"kcal": "not_an_op"}},
        ["Datum", "kcal"],
    )
    assert report["valid"] is False
    assert any(e.get("code") == "invalid_import_row_processing" for e in report["errors"])


def test_validate_csv_template_accepts_nutrition_aggregation():
    report = validate_csv_template(
        "nutrition",
        {"Datum": "date", "kcal": "kcal", "protein": "protein_g"},
        None,
        {"group_by": ["date"], "aggregates": {"kcal": "sum", "protein_g": "sum"}},
        ["Datum", "kcal", "protein"],
    )
    assert report["valid"] is True