"""Tests for workspace iteration-directory resolution (no model calls)."""

from pathlib import Path

from skill_eval_runner.workspace import resolve_iteration


def test_resolve_iteration_starts_at_one(tmp_path: Path) -> None:
    """An empty workspace yields iteration-1."""
    assert resolve_iteration(tmp_path, None).name == "iteration-1"


def test_resolve_iteration_auto_increments(tmp_path: Path) -> None:
    """The next iteration is one past the highest existing numbered dir."""
    (tmp_path / "iteration-1").mkdir()
    (tmp_path / "iteration-2").mkdir()
    assert resolve_iteration(tmp_path, None).name == "iteration-3"


def test_resolve_iteration_ignores_non_numeric_entries(tmp_path: Path) -> None:
    """A nonconforming `iteration-*` entry doesn't crash the increment logic."""
    (tmp_path / "iteration-1").mkdir()
    (tmp_path / "iteration-old").mkdir()
    assert resolve_iteration(tmp_path, None).name == "iteration-2"


def test_resolve_iteration_honors_forced_number(tmp_path: Path) -> None:
    """A forced iteration number is used verbatim and is idempotent."""
    assert resolve_iteration(tmp_path, 7).name == "iteration-7"
    assert resolve_iteration(tmp_path, 7).name == "iteration-7"