"""Tests for suite-config discovery and resolution."""

from pathlib import Path

from skill_eval_runner.config import load_config


def test_defaults_when_no_config(tmp_path: Path) -> None:
    """With no config file, the conventional layout is assumed."""
    config = load_config(tmp_path)
    assert config.skill_file == (tmp_path / "SKILL.md").resolve()
    assert config.suite == (tmp_path / "evals/evals.json").resolve()
    assert config.file_root == tmp_path.resolve()
    assert config.artifact.mode == "tool"
    assert config.artifact.tool_name == "write_report"


def test_loads_skill_eval_toml(tmp_path: Path) -> None:
    """skill-eval.toml overrides paths, artifact, and models."""
    (tmp_path / "skill-eval.toml").write_text(
        "[skill_eval]\n"
        'skill_file = "S.md"\n'
        'suite = "e/evals.json"\n'
        "[skill_eval.artifact]\n"
        'mode = "final_message"\n'
        "[skill_eval.models]\n"
        'small = "haiku"\n'
    )
    config = load_config(tmp_path)
    assert config.skill_file == (tmp_path / "S.md").resolve()
    assert config.suite == (tmp_path / "e/evals.json").resolve()
    assert config.artifact.mode == "final_message"
    assert config.models.small == "haiku"


def test_discovers_config_walking_up(tmp_path: Path) -> None:
    """Discovery walks up from a nested start directory to the config root."""
    (tmp_path / "skill-eval.toml").write_text('[skill_eval]\nskill_file = "S.md"\n')
    nested = tmp_path / "a" / "b"
    nested.mkdir(parents=True)
    config = load_config(nested)
    assert config.root == tmp_path.resolve()