"""Tests for workspace root detection and env overrides."""
from __future__ import annotations
from pathlib import Path
from aleph.mcp.local_server import _detect_workspace_root
def _make_repo(tmp_path: Path) -> tuple[Path, Path]:
repo = tmp_path / "repo"
repo.mkdir()
(repo / ".git").mkdir()
sub = repo / "sub"
sub.mkdir()
return repo, sub
def test_detect_workspace_root_uses_env_override(monkeypatch, tmp_path: Path) -> None:
"""ALEPH_WORKSPACE_ROOT takes precedence over everything."""
repo, sub = _make_repo(tmp_path)
other = tmp_path / "other"
other.mkdir()
monkeypatch.chdir(other)
monkeypatch.setenv("ALEPH_WORKSPACE_ROOT", str(repo))
monkeypatch.delenv("PWD", raising=False)
monkeypatch.delenv("INIT_CWD", raising=False)
assert _detect_workspace_root() == repo
def test_detect_workspace_root_uses_pwd(monkeypatch, tmp_path: Path) -> None:
"""Without ALEPH_WORKSPACE_ROOT, uses PWD and finds git root."""
repo, sub = _make_repo(tmp_path)
other = tmp_path / "other"
other.mkdir()
monkeypatch.chdir(other)
monkeypatch.delenv("ALEPH_WORKSPACE_ROOT", raising=False)
monkeypatch.setenv("PWD", str(sub))
monkeypatch.delenv("INIT_CWD", raising=False)
assert _detect_workspace_root() == repo
def test_detect_workspace_root_uses_init_cwd(monkeypatch, tmp_path: Path) -> None:
"""Without PWD, falls back to INIT_CWD and finds git root."""
repo, sub = _make_repo(tmp_path)
other = tmp_path / "other"
other.mkdir()
monkeypatch.chdir(other)
monkeypatch.delenv("ALEPH_WORKSPACE_ROOT", raising=False)
monkeypatch.delenv("PWD", raising=False)
monkeypatch.setenv("INIT_CWD", str(sub))
assert _detect_workspace_root() == repo
def test_detect_workspace_root_expands_tilde(monkeypatch, tmp_path: Path) -> None:
"""Tilde expansion works in ALEPH_WORKSPACE_ROOT."""
home = tmp_path / "home"
home.mkdir()
workspace = home / "myworkspace"
workspace.mkdir()
monkeypatch.setenv("HOME", str(home))
monkeypatch.setenv("ALEPH_WORKSPACE_ROOT", "~/myworkspace")
monkeypatch.delenv("PWD", raising=False)
monkeypatch.delenv("INIT_CWD", raising=False)
assert _detect_workspace_root() == workspace
def test_detect_workspace_root_falls_back_to_cwd(monkeypatch, tmp_path: Path) -> None:
"""Without any env vars, uses cwd and finds git root."""
repo, sub = _make_repo(tmp_path)
monkeypatch.chdir(sub)
monkeypatch.delenv("ALEPH_WORKSPACE_ROOT", raising=False)
monkeypatch.delenv("PWD", raising=False)
monkeypatch.delenv("INIT_CWD", raising=False)
assert _detect_workspace_root() == repo
