from __future__ import annotations
import json
import subprocess
from pathlib import Path
def _run(cmd: list[str], cwd: Path | None = None, timeout: int = 30) -> subprocess.CompletedProcess[str]:
return subprocess.run(["uv", "run", *cmd], cwd=str(cwd) if cwd else None, text=True, capture_output=True, timeout=timeout)
def test_index_profile_startup_emits_json(tmp_path: Path) -> None:
root = tmp_path
(root / "a.py").write_text("print('x')\n")
proc = _run(["chunkhound", "index", str(root), "--no-embeddings", "--profile-startup"], timeout=60)
assert proc.returncode == 0, proc.stderr
# Profile JSON is printed to stderr as the last line(s)
# Extract the last JSON object safely by scanning lines
err = proc.stderr.strip().splitlines()
joined = "\n".join(err[-20:]) # tail window
# Find first '{' from this tail and parse
first = joined.find('{')
assert first != -1, f"stderr tail did not contain JSON: {joined!r}"
data = json.loads(joined[first:])
assert "startup_profile" in data
sp = data["startup_profile"]
assert set(["discovery_ms", "cleanup_ms", "change_scan_ms"]).issubset(sp.keys())
