headroom/tests/test_cli/test_wrap_opencode.py
Abhay Singh 20968a4fa4
fix(wrap/opencode): unwrap removes the rtk block from AGENTS.md (#2025)
## Description

`headroom wrap opencode` injects the marker-fenced rtk guidance block —
"prefix shell commands
with `rtk`" — into **both** instruction files (`headroom/cli/wrap.py`):

```python
# wrap opencode
project_agents = Path.cwd() / "AGENTS.md"
_inject_rtk_instructions(project_agents, verbose=verbose)
global_agents = _opencode_home_dir() / "AGENTS.md"
_inject_rtk_instructions(global_agents, verbose=verbose)
```

But `unwrap_opencode` only restores the OpenCode config and cleans up
MCP servers — it never
removes that rtk block. So after `unwrap opencode`, both `AGENTS.md`
files still contain the
marker-fenced instruction, and a plain `opencode` launch keeps following
"prefix shell commands
with `rtk`" and fails once the managed rtk binary is off PATH.

`unwrap_codex` (#1421) and `unwrap_copilot` both already do this cleanup
via
`_remove_rtk_instructions`; opencode was simply never given the
equivalent — a wrap/unwrap
asymmetry.

Closes: no issue filed — found while auditing wrap/unwrap symmetry
across agents.

## Fix

In `unwrap_opencode`, after the MCP cleanup, strip the rtk block from
both files it was injected
into, mirroring `unwrap_codex`:

```python
for _agents_md in (Path.cwd() / "AGENTS.md", _opencode_home_dir() / "AGENTS.md"):
    if _remove_rtk_instructions(_agents_md):
        click.echo(f"  Removed Headroom rtk instructions from {_agents_md}.")
```

Best-effort and unconditional, matching the existing MCP cleanup and the
codex/copilot unwrap
paths. `_remove_rtk_instructions` already no-ops when the file or marker
is absent.

## Type of Change

- [x] Bug fix (non-breaking change that fixes an issue)

## Changes Made

- `headroom/cli/wrap.py`: `unwrap_opencode` removes the rtk block from
the project and global `AGENTS.md`.
- `tests/test_cli/test_wrap_opencode.py`: add
`test_unwrap_opencode_removes_rtk_from_agents_md` (wrap injects into
both, unwrap removes from both).

## Testing

- [x] New regression test added (`tests/test_cli/test_wrap_opencode.py`)
- [x] Linting/formatting clean — run with the CI-pinned `ruff==0.15.17`
- [ ] Full `pytest` deferred to CI (local-OOM reason below).

```text
$ uvx ruff@0.15.17 check headroom/cli/wrap.py tests/test_cli/test_wrap_opencode.py
All checks passed!
```

## Real Behavior Proof

- Environment: Windows 11, Python 3.10, headroom from this branch.
Importing `headroom` pulls in the torch/transformers stack and a full
`pytest` gets OOM-killed on this box, so I verified the wrap→unwrap
round-trip through the new Click-runner test (which drives the real
command) and reasoned through the marker logic; the full pytest runs on
CI.
- Exact command / steps: the added test runs `wrap opencode --no-mcp`
(asserts `_RTK_MARKER` present in both the project and global
`AGENTS.md`), then `unwrap opencode`, and asserts the marker is gone
from both.
- Observed result (the assertions the test enforces): before the fix,
`unwrap opencode` left `_RTK_MARKER` in both files; after the fix both
are clean:

```text
after wrap:   _RTK_MARKER in project AGENTS.md  ✓   _RTK_MARKER in global AGENTS.md  ✓
after unwrap: _RTK_MARKER absent (project)      ✓   _RTK_MARKER absent (global)      ✓
```

- Not tested: launching a real `opencode` binary (mocked in the test, as
the existing wrap tests do). Full local `pytest` deferred to CI (OOM,
per above).

## Review Readiness

- [x] I have performed a self-review
- [x] This PR is ready for human review

## Checklist

- [x] My code follows the project's style guidelines
- [x] I have performed a self-review of my code
- [x] I have commented my code, particularly in hard-to-understand areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [x] I have added tests that prove my fix is effective or that my
feature works
- [ ] New and existing unit tests pass locally with my changes — ran
lint + the new Click-runner test path; full pytest deferred to CI (local
OOM, disclosed above)
- [x] I have updated the CHANGELOG.md if applicable

## Additional Notes

- Directly parallels the merged `unwrap codex` rtk cleanup (#1421); no
new dependencies.
- @JerrettDavis tagging you — same class as the codex rtk fix, just the
opencode side that was missed. Thanks!

---------

Co-authored-by: JerrettDavis <mxjerrett@gmail.com>
Co-authored-by: Tejas Chopra <chopratejas@gmail.com>
2026-07-13 09:53:45 -04:00

993 lines
40 KiB
Python

"""Tests for `headroom wrap opencode` and `headroom unwrap opencode`."""
from __future__ import annotations
import json
from pathlib import Path
from unittest.mock import patch
import pytest
from click.testing import CliRunner
from headroom.cli import wrap as wrap_mod
from headroom.cli.main import main
@pytest.fixture
def runner() -> CliRunner:
return CliRunner()
def _set_test_home(monkeypatch: pytest.MonkeyPatch, tmp_path: Path) -> None:
home = str(tmp_path)
monkeypatch.setenv("HOME", home)
monkeypatch.setenv("USERPROFILE", home)
monkeypatch.delenv("OPENCODE_HOME", raising=False)
monkeypatch.delenv("OPENCODE_CONFIG", raising=False)
# ---------------------------------------------------------------------------
# Wrap opencode
# ---------------------------------------------------------------------------
def test_wrap_opencode_sets_config_content_env(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""OPENCODE_CONFIG_CONTENT env var is set with the headroom provider."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
monkeypatch.setenv("OPENAI_BASE_URL", "https://deepseek.example/v1")
monkeypatch.setenv("ANTHROPIC_BASE_URL", "https://anthropic.example")
captured: dict[str, object] = {}
def fake_launch_tool(**kwargs): # noqa: ANN003
captured.update(kwargs)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=fake_launch_tool):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(
main,
["wrap", "opencode", "--port", "9000", "--no-mcp", "--", "--model", "gpt-4o"],
)
assert result.exit_code == 0, result.output
env = captured["env"]
assert isinstance(env, dict)
assert "OPENCODE_CONFIG_CONTENT" in env
config = json.loads(env["OPENCODE_CONFIG_CONTENT"])
assert config["provider"]["headroom"]["npm"] == "@ai-sdk/openai-compatible"
assert config["provider"]["headroom"]["options"]["baseURL"] == "http://127.0.0.1:9000/v1"
assert "model" not in config # headroom provider is a transparent pass-through
assert captured["tool_label"] == "OPENCODE"
assert captured["agent_type"] == "opencode"
assert captured["args"] == ("--model", "gpt-4o")
def test_wrap_opencode_does_not_add_base_url_env_vars(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""OPENAI_BASE_URL and ANTHROPIC_BASE_URL are left to OpenCode providers."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
monkeypatch.setenv("OPENAI_BASE_URL", "https://deepseek.example/v1")
monkeypatch.setenv("ANTHROPIC_BASE_URL", "https://anthropic.example")
captured: dict[str, object] = {}
def fake_launch_tool(**kwargs): # noqa: ANN003
captured.update(kwargs)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=fake_launch_tool):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
assert result.exit_code == 0, result.output
env = captured["env"]
assert isinstance(env, dict)
assert env["OPENAI_BASE_URL"] == "https://deepseek.example/v1"
assert env["ANTHROPIC_BASE_URL"] == "https://anthropic.example"
def test_wrap_opencode_missing_binary_errors_clearly(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""If the opencode binary is missing the command must fail with a clear error."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
with patch.object(wrap_mod.shutil, "which", return_value=None):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode"])
assert result.exit_code == 1
assert "'opencode' not found in PATH" in result.output
def test_wrap_opencode_prepare_only_injects_config(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""`wrap opencode --prepare-only` writes the provider config to opencode.json."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--prepare-only"])
assert result.exit_code == 0, result.output
config_file = tmp_path / ".config" / "opencode" / "opencode.json"
assert config_file.exists()
config = json.loads(config_file.read_text(encoding="utf-8"))
assert config["provider"]["headroom"]["options"]["baseURL"] == "http://127.0.0.1:9000/v1"
def test_wrap_opencode_prepare_only_registers_serena_with_agent_context(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--prepare-only"])
assert result.exit_code == 0, result.output
config_file = tmp_path / ".config" / "opencode" / "opencode.json"
config = json.loads(config_file.read_text())
serena_command = config["mcp"]["serena"]["command"]
assert serena_command[serena_command.index("--context") + 1] == "agent"
def test_wrap_opencode_no_mcp_skips_mcp_injection(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""`--no-mcp` skips MCP server injection."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
captured: dict[str, object] = {}
def fake_launch_tool(**kwargs): # noqa: ANN003
captured.update(kwargs)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=fake_launch_tool):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
assert result.exit_code == 0, result.output
env = captured["env"]
config = json.loads(env["OPENCODE_CONFIG_CONTENT"])
assert "mcp" not in config
config_file = tmp_path / ".config" / "opencode" / "opencode.json"
persisted_config = json.loads(config_file.read_text())
assert "headroom" not in persisted_config.get("mcp", {})
def test_wrap_opencode_injects_mcp_by_default(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""MCP is included in OPENCODE_CONFIG_CONTENT by default."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
captured: dict[str, object] = {}
def fake_launch_tool(**kwargs): # noqa: ANN003
captured.update(kwargs)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=fake_launch_tool):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--port", "9000"])
assert result.exit_code == 0, result.output
env = captured["env"]
config = json.loads(env["OPENCODE_CONFIG_CONTENT"])
assert "mcp" in config
assert config["mcp"]["headroom"] == {
"type": "local",
"command": ["headroom", "mcp", "serve"],
"enabled": True,
"environment": {"HEADROOM_PROXY_URL": "http://127.0.0.1:9000"},
}
def test_wrap_opencode_injects_rtk_into_agents_md(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""RTK instructions are injected into global and project AGENTS.md."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
assert result.exit_code == 0, result.output
global_agents = tmp_path / ".config" / "opencode" / "AGENTS.md"
project_agents = tmp_path / "AGENTS.md"
assert global_agents.exists(), "Global AGENTS.md should be created"
assert project_agents.exists(), "Project AGENTS.md should be created"
assert wrap_mod._RTK_MARKER in global_agents.read_text(encoding="utf-8")
assert wrap_mod._RTK_MARKER in project_agents.read_text(encoding="utf-8")
def test_unwrap_opencode_removes_rtk_from_agents_md(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""unwrap opencode removes the rtk block that wrap opencode injected into both
the project and global AGENTS.md — mirroring unwrap_codex / unwrap_copilot."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
global_agents = tmp_path / ".config" / "opencode" / "AGENTS.md"
project_agents = tmp_path / "AGENTS.md"
assert wrap_mod._RTK_MARKER in global_agents.read_text(encoding="utf-8")
assert wrap_mod._RTK_MARKER in project_agents.read_text(encoding="utf-8")
with patch.object(wrap_mod, "_stop_local_proxy_for_unwrap", return_value="stopped"):
result = runner.invoke(main, ["unwrap", "opencode"])
assert result.exit_code == 0, result.output
# Both rtk blocks are gone after unwrap (previously left behind). A file that
# held only the rtk block is removed entirely by _remove_rtk_instructions, so
# treat a missing file as "block gone".
def _rtk_absent(path: Path) -> bool:
return not path.exists() or wrap_mod._RTK_MARKER not in path.read_text(encoding="utf-8")
assert _rtk_absent(global_agents)
assert _rtk_absent(project_agents)
def test_wrap_opencode_no_project_rtk_only_skips_project_agents_md(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
project_agents = tmp_path / "AGENTS.md"
project_agents.write_text("# Team instructions\n", encoding="utf-8")
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(
main,
[
"wrap",
"opencode",
"--no-project-rtk",
"--no-proxy",
"--port",
"9000",
"--no-mcp",
],
)
assert result.exit_code == 0, result.output
assert project_agents.read_text(encoding="utf-8") == "# Team instructions\n"
global_agents = tmp_path / ".config" / "opencode" / "AGENTS.md"
assert wrap_mod._RTK_MARKER in global_agents.read_text(encoding="utf-8")
def test_wrap_opencode_idempotent_no_duplicate_block(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""Running wrap twice must not duplicate the RTK block in AGENTS.md."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
project_agents = tmp_path / "AGENTS.md"
content = project_agents.read_text(encoding="utf-8")
assert content.count(wrap_mod._RTK_MARKER) == 1
# ---------------------------------------------------------------------------
# Unwrap opencode
# ---------------------------------------------------------------------------
def test_unwrap_opencode_restores_from_backup(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""Unwrap restores the pre-wrap backup and removes it."""
monkeypatch.chdir(tmp_path)
_set_test_home(monkeypatch, tmp_path)
config_file = tmp_path / ".config" / "opencode" / "opencode.json"
backup_file = config_file.with_suffix(".json.headroom-backup")
config_file.parent.mkdir(parents=True, exist_ok=True)
original = '{"model": "openai/gpt-4o"}'
config_file.write_text(original)
backup_file.write_text(original)
with patch.object(wrap_mod, "_stop_local_proxy_for_unwrap", return_value="stopped"):
result = runner.invoke(main, ["unwrap", "opencode"])
assert result.exit_code == 0, result.output
assert "Restored prior" in result.output
assert not backup_file.exists()
assert config_file.read_text(encoding="utf-8") == original
def test_unwrap_opencode_strips_blocks_when_no_backup(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""Unwrap strips Headroom blocks when no backup exists."""
monkeypatch.chdir(tmp_path)
_set_test_home(monkeypatch, tmp_path)
config_file = tmp_path / ".config" / "opencode" / "opencode.json"
config_file.parent.mkdir(parents=True, exist_ok=True)
user_content = '{"model": "openai/gpt-4o"}'
wrapped_content = (
wrap_mod._PROVIDER_MARKER_START
+ '\n"provider": {},\n'
+ wrap_mod._PROVIDER_MARKER_END
+ "\n"
+ user_content
)
config_file.write_text(wrapped_content)
with patch.object(wrap_mod, "_stop_local_proxy_for_unwrap", return_value="stopped"):
result = runner.invoke(main, ["unwrap", "opencode"])
assert result.exit_code == 0, result.output
assert "Removed Headroom block" in result.output
assert user_content in config_file.read_text(encoding="utf-8")
assert wrap_mod._PROVIDER_MARKER_START not in config_file.read_text(encoding="utf-8")
# ---------------------------------------------------------------------------
# Edge cases — wrap
# ---------------------------------------------------------------------------
def test_wrap_opencode_preserves_existing_user_providers(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""Wrap merges headroom provider without disturbing user's existing providers."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
config_file = tmp_path / ".config" / "opencode" / "opencode.json"
config_file.parent.mkdir(parents=True, exist_ok=True)
config_file.write_text('{"provider": {"openai": {"models": {"gpt-4o": {"name": "GPT-4o"}}}}}')
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
assert result.exit_code == 0, result.output
config = json.loads(config_file.read_text(encoding="utf-8"))
assert "headroom" in config["provider"], "headroom provider not injected"
assert "openai" in config["provider"], "user's openai provider was removed"
def test_wrap_opencode_port_change_updates_existing_config(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""Wrapping with a different port updates the baseURL in opencode.json."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
runner.invoke(main, ["wrap", "opencode", "--port", "9001", "--no-mcp"])
config_file = tmp_path / ".config" / "opencode" / "opencode.json"
config = json.loads(config_file.read_text(encoding="utf-8"))
assert config["provider"]["headroom"]["options"]["baseURL"] == "http://127.0.0.1:9001/v1"
def test_wrap_opencode_handles_malformed_config_file(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""Wrap handles a malformed opencode.json by backing it up before overwriting."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
config_file = tmp_path / ".config" / "opencode" / "opencode.json"
config_file.parent.mkdir(parents=True, exist_ok=True)
malformed = '{"model": "gpt-4o",}' # trailing comma
config_file.write_text(malformed)
backup_file = config_file.with_suffix(".json.headroom-backup")
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
assert result.exit_code == 0, result.output
assert backup_file.exists(), "backup must be created before overwriting"
assert backup_file.read_text(encoding="utf-8") == malformed, (
"backup must preserve original byte-for-byte"
)
# The config file is now valid JSON with headroom provider.
config = json.loads(config_file.read_text(encoding="utf-8"))
assert "headroom" in config.get("provider", {})
def test_wrap_opencode_handles_empty_config_file(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""Wrap handles an empty opencode.json file gracefully."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
config_file = tmp_path / ".config" / "opencode" / "opencode.json"
config_file.parent.mkdir(parents=True, exist_ok=True)
config_file.write_text("")
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
assert result.exit_code == 0, result.output
config = json.loads(config_file.read_text(encoding="utf-8"))
assert config["provider"]["headroom"]["options"]["baseURL"] == "http://127.0.0.1:9000/v1"
def test_wrap_opencode_handles_config_dir_missing(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""Wrap creates the config directory when it doesn't exist."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
config_dir = tmp_path / ".config" / "opencode"
assert not config_dir.exists()
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
assert result.exit_code == 0, result.output
assert config_dir.exists()
assert (config_dir / "opencode.json").exists()
def test_wrap_opencode_rtk_preserves_existing_agents_md(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""RTK injection appends to AGENTS.md without removing existing content."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
existing_content = "# My custom rules\nUse spaces, not tabs."
(tmp_path / "AGENTS.md").write_text(existing_content)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
assert result.exit_code == 0, result.output
content = (tmp_path / "AGENTS.md").read_text(encoding="utf-8")
assert existing_content in content
assert wrap_mod._RTK_MARKER in content
def test_wrap_opencode_no_rtk_leaves_agents_md_untouched(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""`--no-rtk` flag leaves existing AGENTS.md untouched."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
existing_content = "# My custom rules\nUse spaces, not tabs."
(tmp_path / "AGENTS.md").write_text(existing_content)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(
main, ["wrap", "opencode", "--port", "9000", "--no-rtk", "--no-mcp"]
)
assert result.exit_code == 0, result.output
content = (tmp_path / "AGENTS.md").read_text(encoding="utf-8")
assert content == existing_content, "--no-rtk modified AGENTS.md"
assert wrap_mod._RTK_MARKER not in content
def test_wrap_opencode_respects_opencode_config_env(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""OPENCODE_CONFIG env var overrides the default config path."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
custom_config = tmp_path / "custom" / "config.json"
monkeypatch.setenv("OPENCODE_CONFIG", str(custom_config))
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
assert result.exit_code == 0, result.output
assert custom_config.exists()
default_config = tmp_path / ".config" / "opencode" / "opencode.json"
assert not default_config.exists(), (
"default config should not be created when OPENCODE_CONFIG is set"
)
def test_wrap_opencode_headroom_project_from_cwd(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""HEADROOM_PROJECT is set based on the current working directory name."""
project_dir = tmp_path / "my-project"
project_dir.mkdir()
monkeypatch.chdir(project_dir)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
monkeypatch.delenv("HEADROOM_PROJECT", raising=False)
_set_test_home(monkeypatch, tmp_path)
captured: dict[str, object] = {}
def fake_launch_tool(**kwargs): # noqa: ANN003
captured.update(kwargs)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=fake_launch_tool):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
assert result.exit_code == 0, result.output
env = captured["env"]
assert env.get("HEADROOM_PROJECT") == "my-project"
def test_wrap_opencode_respects_existing_headroom_project(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""User-set HEADROOM_PROJECT env var is preserved, not overridden."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
monkeypatch.setenv("HEADROOM_PROJECT", "user-set-value")
captured: dict[str, object] = {}
def fake_launch_tool(**kwargs): # noqa: ANN003
captured.update(kwargs)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=fake_launch_tool):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
assert result.exit_code == 0, result.output
env = captured["env"]
assert env["HEADROOM_PROJECT"] == "user-set-value"
def test_wrap_opencode_config_merges_existing_model(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""Wrap preserves the user's existing model selection."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
config_file = tmp_path / ".config" / "opencode" / "opencode.json"
config_file.parent.mkdir(parents=True, exist_ok=True)
config_file.write_text('{"model": "openai/gpt-4o"}')
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
assert result.exit_code == 0, result.output
config = json.loads(config_file.read_text(encoding="utf-8"))
assert config["model"] == "openai/gpt-4o"
assert config["provider"]["headroom"]["npm"] == "@ai-sdk/openai-compatible"
# ---------------------------------------------------------------------------
# Edge cases — unwrap
# ---------------------------------------------------------------------------
def test_unwrap_opencode_removes_config_when_only_headroom_content(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""Unwrap removes the config file entirely when it contained only Headroom content."""
monkeypatch.chdir(tmp_path)
_set_test_home(monkeypatch, tmp_path)
config_file = tmp_path / ".config" / "opencode" / "opencode.json"
config_file.parent.mkdir(parents=True, exist_ok=True)
wrapped_content = (
wrap_mod._PROVIDER_MARKER_START + '\n"provider": {},\n' + wrap_mod._PROVIDER_MARKER_END
)
config_file.write_text(wrapped_content)
with patch.object(wrap_mod, "_stop_local_proxy_for_unwrap", return_value="stopped"):
result = runner.invoke(main, ["unwrap", "opencode"])
assert result.exit_code == 0, result.output
assert "Removed" in result.output
assert not config_file.exists()
def test_unwrap_opencode_noop_when_config_missing(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""Unwrap is a safe no-op when the config file doesn't exist."""
monkeypatch.chdir(tmp_path)
_set_test_home(monkeypatch, tmp_path)
with patch.object(wrap_mod, "_stop_local_proxy_for_unwrap", return_value="stopped"):
result = runner.invoke(main, ["unwrap", "opencode"])
assert result.exit_code == 0, result.output
assert "does not exist" in result.output
def test_unwrap_opencode_noop_when_no_headroom_markers(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""Unwrap is a safe no-op when the config has no Headroom markers."""
monkeypatch.chdir(tmp_path)
_set_test_home(monkeypatch, tmp_path)
config_file = tmp_path / ".config" / "opencode" / "opencode.json"
config_file.parent.mkdir(parents=True, exist_ok=True)
config_file.write_text('{"model": "openai/gpt-4o"}')
with patch.object(wrap_mod, "_stop_local_proxy_for_unwrap", return_value="stopped"):
result = runner.invoke(main, ["unwrap", "opencode"])
assert result.exit_code == 0, result.output
assert "no Headroom wrap markers" in result.output
assert config_file.read_text(encoding="utf-8").strip() == '{"model": "openai/gpt-4o"}'
def test_wrap_unwrap_rewrap_is_idempotent(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""Full wrap-unwrap-rewrap cycle produces consistent results."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
config_file = tmp_path / ".config" / "opencode" / "opencode.json"
config_file.parent.mkdir(parents=True, exist_ok=True)
user_config = '{"model": "openai/gpt-4o", "provider": {"openai": {}}}'
config_file.write_text(user_config)
# First wrap
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
# Unwrap
with patch.object(wrap_mod, "_stop_local_proxy_for_unwrap", return_value="stopped"):
runner.invoke(main, ["unwrap", "opencode"])
# After unwrap, file should match original
after_unwrap = json.loads(config_file.read_text(encoding="utf-8"))
assert after_unwrap["model"] == "openai/gpt-4o"
assert "headroom" not in after_unwrap.get("provider", {})
# Re-wrap
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
runner.invoke(main, ["wrap", "opencode", "--port", "9001", "--no-mcp"])
# After re-wrap, headroom should be back, model unchanged
after_rewrap = json.loads(config_file.read_text(encoding="utf-8"))
assert after_rewrap["model"] == "openai/gpt-4o"
assert "headroom" in after_rewrap.get("provider", {})
def test_unwrap_opencode_restores_backup_and_removes_it(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""Unwrap removes the backup file after successful restore."""
monkeypatch.chdir(tmp_path)
_set_test_home(monkeypatch, tmp_path)
config_file = tmp_path / ".config" / "opencode" / "opencode.json"
backup_file = config_file.with_suffix(".json.headroom-backup")
config_file.parent.mkdir(parents=True, exist_ok=True)
original = '{"model": "openai/gpt-4o"}'
config_file.write_text(original)
backup_file.write_text(original)
with patch.object(wrap_mod, "_stop_local_proxy_for_unwrap", return_value="stopped"):
result = runner.invoke(main, ["unwrap", "opencode"])
assert result.exit_code == 0, result.output
assert "Restored prior" in result.output
assert not backup_file.exists(), "backup file was not cleaned up after restore"
def test_wrap_opencode_no_arguments_is_valid(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""`headroom wrap opencode` with no additional arguments is a valid command."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
captured: dict[str, object] = {}
def fake_launch_tool(**kwargs): # noqa: ANN003
captured.update(kwargs)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=fake_launch_tool):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--no-mcp"])
assert result.exit_code == 0, result.output
assert captured["tool_label"] == "OPENCODE"
assert captured["args"] == ()
def test_wrap_opencode_with_memory_flag(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""--memory flag is accepted and does not crash."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(
main, ["wrap", "opencode", "--port", "9000", "--memory", "--no-mcp"]
)
assert result.exit_code == 0, result.output
def test_wrap_opencode_with_backend_and_anyllm_provider(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""--backend and --anyllm-provider flags are accepted."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(
main,
[
"wrap",
"opencode",
"--port",
"9000",
"--backend",
"anyllm",
"--anyllm-provider",
"groq",
"--no-mcp",
],
)
assert result.exit_code == 0, result.output
def test_wrap_opencode_with_no_proxy(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""--no-proxy flag skips proxy startup but still configures the tool."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(
main, ["wrap", "opencode", "--port", "9000", "--no-proxy", "--no-mcp"]
)
assert result.exit_code == 0, result.output
def test_wrap_opencode_with_verbose_flag(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""--verbose flag does not crash."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
_set_test_home(monkeypatch, tmp_path)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(
main, ["wrap", "opencode", "--port", "9000", "--verbose", "--no-mcp"]
)
assert result.exit_code == 0, result.output
def test_wrap_opencode_respects_opencode_home_env(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""OPENCODE_HOME env var controls where AGENTS.md is written."""
monkeypatch.chdir(tmp_path)
monkeypatch.delenv("HEADROOM_CONTEXT_TOOL", raising=False)
custom_home = str(tmp_path / "custom-opencode-home")
monkeypatch.setenv("HOME", str(tmp_path))
monkeypatch.setenv("OPENCODE_HOME", custom_home)
with patch.object(wrap_mod.shutil, "which", return_value="opencode"):
with patch.object(wrap_mod, "_launch_tool", side_effect=SystemExit(0)):
with patch.object(wrap_mod, "_ensure_rtk_binary", return_value=Path("/tmp/rtk")):
result = runner.invoke(main, ["wrap", "opencode", "--port", "9000", "--no-mcp"])
assert result.exit_code == 0, result.output
agents_md = Path(custom_home) / "AGENTS.md"
assert agents_md.exists()
# ---------------------------------------------------------------------------
# Regression: unwrap must preserve non-ASCII UTF-8 user content (#1126)
# ---------------------------------------------------------------------------
def test_unwrap_opencode_preserves_utf8_user_content(
runner: CliRunner,
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""Unwrap strips Headroom blocks but preserves non-ASCII UTF-8 user content (#1126)."""
monkeypatch.chdir(tmp_path)
_set_test_home(monkeypatch, tmp_path)
config_file = tmp_path / ".config" / "opencode" / "opencode.json"
config_file.parent.mkdir(parents=True, exist_ok=True)
# User content with smart quotes and em dashes (non-ASCII UTF-8)
user_config = {
"model": "openai/gpt-4o",
"description": "“smart quotes” and an em dash — here",
}
user_json = json.dumps(user_config, ensure_ascii=False)
wrapped_content = (
wrap_mod._PROVIDER_MARKER_START
+ '\n"provider": {},\n'
+ wrap_mod._PROVIDER_MARKER_END
+ "\n"
+ user_json
)
config_file.write_text(wrapped_content, encoding="utf-8")
# Mock out OpencodeRegistrar to avoid its own bare-open encoding issue
# (pre-existing; outside this PR's scope).
fake_registrar = type("FakeRegistrar", (), {"detect": lambda self: False})()
with patch.object(wrap_mod, "_stop_local_proxy_for_unwrap", return_value="stopped"):
with patch("headroom.mcp_registry.OpencodeRegistrar", return_value=fake_registrar):
result = runner.invoke(main, ["unwrap", "opencode"])
assert result.exit_code == 0, result.output
assert "Removed Headroom block" in result.output
content = config_file.read_text(encoding="utf-8")
assert "“smart quotes”" in content
assert "" in content
assert wrap_mod._PROVIDER_MARKER_START not in content