"""Tests for BOM tools."""

import csv

import pytest


@pytest.mark.unit
def test_analyze_bom_no_csv(project_path):
    """analyze_bom with no CSV files should return empty results gracefully."""
    from mckicad.tools.bom import analyze_bom

    result = analyze_bom(project_path)
    # Should succeed but find no data
    assert isinstance(result, dict)


@pytest.mark.unit
def test_analyze_bom_with_csv(tmp_project_dir, project_path):
    """analyze_bom should parse a BOM CSV file."""
    from mckicad.tools.bom import analyze_bom

    # Create a simple BOM CSV
    bom_path = tmp_project_dir / "test_project-bom.csv"
    with open(bom_path, "w", newline="") as f:
        writer = csv.writer(f)
        writer.writerow(["Reference", "Value", "Footprint", "Qty"])
        writer.writerow(["R1", "10k", "0805", "1"])
        writer.writerow(["R2", "4.7k", "0805", "1"])
        writer.writerow(["C1", "100nF", "0805", "1"])

    result = analyze_bom(project_path)
    assert isinstance(result, dict)