from io import BytesIO

import pytest
from openpyxl import load_workbook

from finance.exporting import build_formula_workbook

pytestmark = pytest.mark.django_db


def test_reconcile_status_guards_non_numeric_difference(workspace):
    ds, member, *_ = workspace
    ds.periods = ["2025-08"]
    ds.save(update_fields=["periods"])
    output = BytesIO()
    build_formula_workbook(
        ds,
        member,
        {"start": "2026-08", "end": "2026-08", "comparison": "yoy", "group": "department"},
        output,
    )
    workbook = load_workbook(BytesIO(output.getvalue()), data_only=False)
    formulas = [
        row[6].value
        for row in workbook["对账检查"].iter_rows(min_row=2)
        if isinstance(row[6].value, str) and row[6].value.startswith("=IF(D")
    ]
    assert formulas
    assert all("ISNUMBER(F" in formula for formula in formulas)
    assert all('"通过"' in formula for formula in formulas)