import asyncio
from pathlib import Path
import pytest
class _DummyPipe:
def __init__(self) -> None: # pragma: no cover - trivial
self._buf = b""
def write(self, data: bytes) -> None: # pragma: no cover - trivial
self._buf += data
async def drain(self) -> None: # pragma: no cover - trivial
return None
def close(self) -> None: # pragma: no cover - trivial
return None
class _DummyProc:
def __init__(self, rc: int = 0, out: bytes = b"OK", err: bytes = b"") -> None:
self.returncode = rc
self._out = out
self._err = err
self.stdin = _DummyPipe()
async def communicate(self): # pragma: no cover - exercised indirectly
return self._out, self._err
def kill(self) -> None: # pragma: no cover - trivial
return None
async def wait(self) -> None: # pragma: no cover - trivial
return None
@pytest.mark.asyncio
async def test_codex_stdin_is_default(monkeypatch, tmp_path: Path):
"""By default, provider should use stdin (argument '-' after 'exec')."""
from chunkhound.providers.llm.codex_cli_provider import CodexCLIProvider
# Force availability
monkeypatch.setattr(CodexCLIProvider, "_codex_available", lambda self: True, raising=True)
# Deterministic overlay path
overlay_dir = tmp_path / "overlay-home"
overlay_dir.mkdir(parents=True, exist_ok=True)
requested_model = {}
def _fake_overlay_home(self, model_override=None):
requested_model["value"] = model_override
return str(overlay_dir)
monkeypatch.setattr(CodexCLIProvider, "_build_overlay_home", _fake_overlay_home, raising=True)
captured_args = {}
async def _fake_create_subprocess_exec(*args, **kwargs): # noqa: ANN001
# Save invocation for assertions
captured_args["args"] = list(args)
captured_args["kwargs"] = dict(kwargs)
return _DummyProc(rc=0, out=b"OK", err=b"")
monkeypatch.setattr(asyncio, "create_subprocess_exec", _fake_create_subprocess_exec, raising=True)
prov = CodexCLIProvider(model="codex")
out = await prov._run_exec("ping", cwd=None, max_tokens=32, timeout=10, model="codex") # type: ignore[attr-defined]
assert out.strip() == "OK"
# Validate that the provider invoked: codex exec -
args = captured_args.get("args") or []
# Expected shape: [binary, "exec", "-", ...]
assert len(args) >= 3, f"unexpected argv: {args!r}"
assert args[1] == "exec"
assert args[2] == "-", f"provider did not use stdin-first; argv was: {args!r}"
# Ensure overlay is cleaned
assert not overlay_dir.exists(), "overlay CODEX_HOME should be removed after run"
# "codex" alias should resolve to the default Codex model
assert requested_model.get("value") == "gpt-5.1-codex"
