from pathlib import Path

from app.modules.results.service import parse_training_curve


def test_parse_yolo_results_curve(tmp_path: Path):
    csv_path = tmp_path / "results.csv"
    csv_path.write_text(
        "\n".join(
            [
                "epoch,time,train/box_loss,train/seg_loss,metrics/mAP50(M),val/seg_loss,lr/pg0",
                "1,1.0,1.5,3.0,0.12,2.8,0.001",
                "2,2.0,1.2,2.5,0.18,2.1,0.001",
                "3,3.0,0.9,2.0,0.25,1.9,0.001",
            ]
        ),
        encoding="utf-8",
    )

    curve = parse_training_curve(csv_path)

    assert curve is not None
    assert curve["x_key"] == "epoch"
    names = [item["name"] for item in curve["series"]]
    assert "train/seg_loss" in names
    assert "metrics/mAP50(M)" in names
    assert all("lr/" not in name for name in names)