headroom/tests/test_cli_proxy_improvements.py
Rod Boev 3be2526b76
fix(proxy): add an Anthropic buffered read-timeout override (#1331)
## Description

Buffered Anthropic `/v1/messages` requests still use Headroom's generic
300-second read timeout, which can produce proxy-generated `502
ReadTimeout` errors on long turns. This adds a dedicated buffered
Anthropic timeout, keeps it applied across CCR and memory continuations
plus batch paths, and makes the direct server entrypoint enforce the
same positive-integer contract as the Click CLI. Closes #1261.

## Type of Change

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

## Changes Made

- Added `anthropic_buffered_request_timeout_seconds` for buffered
Anthropic reads.
- Routed `/v1/messages`, CCR continuation, memory continuation, batch
create, batch passthrough, and batch results through that timeout.
- Enforced the same positive-integer validation for
`HEADROOM_ANTHROPIC_BUFFERED_REQUEST_TIMEOUT_SECONDS` and
`--anthropic-buffered-request-timeout-seconds` in both startup paths.
- Added focused regressions and updated `CHANGELOG.md`.

## Testing

- [x] `uv run pytest tests/test_proxy/test_anthropic_buffered_timeout.py
tests/test_cli_proxy_improvements.py::TestNewEnvVarWiring`
- [x] `uv run ruff check .`
- [x] `uv run ruff format . --check`

### Test Output

```text
$ uv run pytest tests/test_proxy/test_anthropic_buffered_timeout.py tests/test_cli_proxy_improvements.py::TestNewEnvVarWiring
17 passed in 3.42s

$ uv run ruff check .
All checks passed!

$ uv run ruff format . --check
966 files already formatted
```

## Real Behavior Proof

- Environment: local FastAPI `TestClient` with stubbed retry and HTTP
client seams
- Exact command / steps: run `uv run pytest
tests/test_proxy/test_anthropic_buffered_timeout.py
tests/test_cli_proxy_improvements.py::TestNewEnvVarWiring`; the tests
build `ProxyConfig(request_timeout_seconds=7, connect_timeout_seconds=3,
anthropic_buffered_request_timeout_seconds=19)`, drive `/v1/messages`,
`/v1/messages/batches`, `/v1/messages/batches/{batch_id}/results`, a CCR
continuation, and a memory continuation through `TestClient`, then
verify `HEADROOM_ANTHROPIC_BUFFERED_REQUEST_TIMEOUT_SECONDS=0` falls
back to `600`, `--anthropic-buffered-request-timeout-seconds 0` is
rejected, and default proxy timeouts stay `read=300` and `write=300`
- Observed result: buffered Anthropic paths use
`httpx.Timeout(connect=3, read=19, write=7, pool=3)`, continuation
requests stay on that same budget, invalid zero-valued startup config is
rejected or ignored back to the default, and unrelated proxy timeout
defaults stay unchanged
- Not tested: live upstream Anthropic latency beyond the focused
stubbed-timeout regression

## 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 added tests that prove the fix
- [x] New and existing unit tests pass locally with my changes
- [x] I have updated the CHANGELOG.md if applicable
2026-06-23 22:46:31 -05:00

450 lines
17 KiB
Python

"""Tests for CLI proxy command improvements: help text, exception handling, validation.
Covers:
- --learn + --no-learn conflict warning
- --subscription-poll-interval range validation (1-3600)
- --retry-max-attempts range validation (0-10)
- --connect-timeout-seconds range validation (1-300)
- --budget non-negative validation
- --memory-top-k range validation (1-100)
- ImportError path (missing proxy dependencies)
- KeyboardInterrupt exits with code 130
- env var wiring for newly-added envvars
"""
from __future__ import annotations
import argparse
from unittest.mock import patch
import pytest
click = pytest.importorskip("click")
pytest.importorskip("fastapi")
from click.testing import CliRunner # noqa: E402
from headroom.cli.main import main # noqa: E402
@pytest.fixture
def runner() -> CliRunner:
return CliRunner()
@pytest.fixture
def mock_run_server():
"""Patch run_server to a no-op and capture the ProxyConfig passed to it."""
captured: dict = {}
def _mock(config, **kwargs):
captured["config"] = config
captured["kwargs"] = kwargs
with patch("headroom.proxy.server.run_server", _mock):
yield captured
class TestLearnNoLearnConflict:
"""--learn and --no-learn together should warn but not fail."""
def test_both_flags_warns_and_exits_zero(
self, runner: CliRunner, mock_run_server: dict
) -> None:
result = runner.invoke(
main,
["proxy", "--learn", "--no-learn"],
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
# Warning must go to stderr via click.secho(err=True)
assert "both --learn and --no-learn" in result.output or (result.output is not None), (
result.output
)
def test_no_learn_wins_over_learn(self, runner: CliRunner, mock_run_server: dict) -> None:
"""When both are set, learning must be disabled (--no-learn takes precedence)."""
result = runner.invoke(
main,
["proxy", "--learn", "--no-learn"],
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
cfg = mock_run_server["config"]
assert cfg.traffic_learning_enabled is False
def test_learn_alone_enables_learning(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(main, ["proxy", "--learn"], catch_exceptions=False)
assert result.exit_code == 0, result.output
cfg = mock_run_server["config"]
assert cfg.traffic_learning_enabled is True
assert cfg.memory_enabled is True
def test_no_learn_alone_disables_learning(
self, runner: CliRunner, mock_run_server: dict
) -> None:
result = runner.invoke(main, ["proxy", "--memory", "--no-learn"], catch_exceptions=False)
assert result.exit_code == 0, result.output
cfg = mock_run_server["config"]
assert cfg.traffic_learning_enabled is False
class TestSubscriptionPollIntervalValidation:
"""--subscription-poll-interval should reject values outside 1-3600."""
def test_valid_lower_bound(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy", "--subscription-poll-interval", "1"],
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
def test_valid_upper_bound(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy", "--subscription-poll-interval", "3600"],
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
def test_zero_is_rejected(self, runner: CliRunner) -> None:
result = runner.invoke(main, ["proxy", "--subscription-poll-interval", "0"])
assert result.exit_code != 0
assert (
"invalid" in result.output.lower()
or "range" in result.output.lower()
or "error" in result.output.lower()
)
def test_above_max_is_rejected(self, runner: CliRunner) -> None:
result = runner.invoke(main, ["proxy", "--subscription-poll-interval", "3601"])
assert result.exit_code != 0
def test_negative_is_rejected(self, runner: CliRunner) -> None:
result = runner.invoke(main, ["proxy", "--subscription-poll-interval", "-1"])
assert result.exit_code != 0
class TestRetryMaxAttemptsValidation:
"""--retry-max-attempts should accept 1-10, reject outside that range."""
def test_one_is_valid(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy", "--retry-max-attempts", "1"],
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].retry_max_attempts == 1
def test_ten_is_valid(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy", "--retry-max-attempts", "10"],
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].retry_max_attempts == 10
def test_zero_is_rejected(self, runner: CliRunner) -> None:
"""0 is not valid because ProxyConfig requires retry_max_attempts >= 1."""
result = runner.invoke(main, ["proxy", "--retry-max-attempts", "0"])
assert result.exit_code != 0
def test_negative_is_rejected(self, runner: CliRunner) -> None:
result = runner.invoke(main, ["proxy", "--retry-max-attempts", "-1"])
assert result.exit_code != 0
def test_above_max_is_rejected(self, runner: CliRunner) -> None:
result = runner.invoke(main, ["proxy", "--retry-max-attempts", "11"])
assert result.exit_code != 0
class TestConnectTimeoutSecondsValidation:
"""--connect-timeout-seconds should accept 1-300, reject outside that range."""
def test_one_is_valid(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy", "--connect-timeout-seconds", "1"],
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].connect_timeout_seconds == 1
def test_three_hundred_is_valid(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy", "--connect-timeout-seconds", "300"],
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].connect_timeout_seconds == 300
def test_zero_is_rejected(self, runner: CliRunner) -> None:
result = runner.invoke(main, ["proxy", "--connect-timeout-seconds", "0"])
assert result.exit_code != 0
def test_above_max_is_rejected(self, runner: CliRunner) -> None:
result = runner.invoke(main, ["proxy", "--connect-timeout-seconds", "301"])
assert result.exit_code != 0
class TestBudgetValidation:
"""--budget should accept non-negative floats, reject negative values."""
def test_zero_budget_is_valid(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy", "--budget", "0.0"],
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].budget_limit_usd == 0.0
def test_positive_budget_is_valid(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy", "--budget", "50.0"],
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].budget_limit_usd == 50.0
def test_negative_budget_is_rejected(self, runner: CliRunner) -> None:
result = runner.invoke(main, ["proxy", "--budget", "-1.0"])
assert result.exit_code != 0
class TestMemoryTopKValidation:
"""--memory-top-k should accept 1-100, reject outside that range."""
def test_one_is_valid(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy", "--memory", "--memory-top-k", "1"],
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].memory_top_k == 1
def test_hundred_is_valid(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy", "--memory", "--memory-top-k", "100"],
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].memory_top_k == 100
def test_zero_is_rejected(self, runner: CliRunner) -> None:
result = runner.invoke(main, ["proxy", "--memory-top-k", "0"])
assert result.exit_code != 0
def test_above_max_is_rejected(self, runner: CliRunner) -> None:
result = runner.invoke(main, ["proxy", "--memory-top-k", "101"])
assert result.exit_code != 0
class TestMissingProxyDepsError:
"""When proxy dependencies are absent the CLI should print an actionable error and exit 1."""
def test_import_error_exits_nonzero(self, runner: CliRunner) -> None:
with patch.dict(
"sys.modules",
{"headroom.proxy.server": None},
):
result = runner.invoke(main, ["proxy"])
# Click CliRunner may raise SystemExit or catch it; exit code must be non-zero
assert result.exit_code != 0
def test_import_error_message_is_actionable(self, runner: CliRunner) -> None:
"""The error message should tell the user how to fix the problem."""
original_import = (
__builtins__.__import__ if hasattr(__builtins__, "__import__") else __import__
)
def patched_import(name, *args, **kwargs):
if name == "headroom.proxy.server":
raise ImportError("No module named 'headroom.proxy.server'")
return original_import(name, *args, **kwargs)
with patch("builtins.__import__", side_effect=patched_import):
result = runner.invoke(main, ["proxy"])
# Either exit code 1 or output with actionable guidance
# (some test environments may shadow the import differently)
assert result.exit_code != 0 or "proxy" in result.output.lower()
class TestKeyboardInterruptExitCode:
"""Ctrl+C during proxy run should exit 130 (SIGINT convention)."""
def test_keyboard_interrupt_exits_130(self, runner: CliRunner) -> None:
def _run_server_raises(*args, **kwargs):
raise KeyboardInterrupt
with patch("headroom.proxy.server.run_server", _run_server_raises):
result = runner.invoke(main, ["proxy"])
assert result.exit_code == 130
class TestNewEnvVarWiring:
"""Verify newly-added envvar= wiring works for options that lacked it."""
def test_headroom_memory_db_path_from_env(
self, runner: CliRunner, mock_run_server: dict
) -> None:
result = runner.invoke(
main,
["proxy", "--memory"],
env={"HEADROOM_MEMORY_DB_PATH": "/tmp/test-memory.db"},
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].memory_db_path == "/tmp/test-memory.db"
def test_headroom_retry_max_attempts_from_env(
self, runner: CliRunner, mock_run_server: dict
) -> None:
result = runner.invoke(
main,
["proxy"],
env={"HEADROOM_RETRY_MAX_ATTEMPTS": "5"},
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].retry_max_attempts == 5
def test_headroom_connect_timeout_from_env(
self, runner: CliRunner, mock_run_server: dict
) -> None:
result = runner.invoke(
main,
["proxy"],
env={"HEADROOM_CONNECT_TIMEOUT_SECONDS": "30"},
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].connect_timeout_seconds == 30
def test_headroom_anthropic_buffered_timeout_from_env(
self, runner: CliRunner, mock_run_server: dict
) -> None:
result = runner.invoke(
main,
["proxy"],
env={"HEADROOM_ANTHROPIC_BUFFERED_REQUEST_TIMEOUT_SECONDS": "900"},
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].anthropic_buffered_request_timeout_seconds == 900
def test_anthropic_buffered_timeout_cli_flag(
self, runner: CliRunner, mock_run_server: dict
) -> None:
result = runner.invoke(
main,
["proxy", "--anthropic-buffered-request-timeout-seconds", "901"],
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].anthropic_buffered_request_timeout_seconds == 901
def test_direct_server_env_timeout_zero_falls_back_to_default(
self, monkeypatch: pytest.MonkeyPatch
) -> None:
import headroom.proxy.server as server_mod
monkeypatch.delenv(server_mod._MULTI_WORKER_CONFIG_ENV, raising=False)
monkeypatch.setenv("HEADROOM_ANTHROPIC_BUFFERED_REQUEST_TIMEOUT_SECONDS", "0")
config = server_mod._proxy_config_from_env()
assert config.anthropic_buffered_request_timeout_seconds == 600
def test_direct_server_timeout_parser_rejects_zero(
self, monkeypatch: pytest.MonkeyPatch
) -> None:
import headroom.proxy.server as server_mod
with pytest.raises(argparse.ArgumentTypeError):
server_mod._positive_int_arg("0")
def test_headroom_backend_from_env(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy"],
env={"HEADROOM_BACKEND": "bedrock"},
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].backend == "bedrock"
def test_headroom_region_from_env(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy"],
env={"HEADROOM_REGION": "eu-west-1"},
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
# bedrock_region falls back to region
assert mock_run_server["config"].bedrock_region == "eu-west-1"
def test_headroom_memory_top_k_from_env(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy", "--memory"],
env={"HEADROOM_MEMORY_TOP_K": "20"},
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].memory_top_k == 20
class TestHelpTextCompleteness:
"""Verify key flags appear in --help output with non-trivial descriptions."""
def _help(self, runner: CliRunner) -> str:
result = runner.invoke(main, ["proxy", "--help"])
assert result.exit_code == 0, result.output
return result.output
def test_help_contains_mode_option(self, runner: CliRunner) -> None:
assert "--mode" in self._help(runner)
def test_help_contains_workers_option(self, runner: CliRunner) -> None:
assert "--workers" in self._help(runner)
def test_help_contains_memory_option(self, runner: CliRunner) -> None:
assert "--memory" in self._help(runner)
def test_help_contains_backend_option(self, runner: CliRunner) -> None:
assert "--backend" in self._help(runner)
def test_help_contains_budget_option(self, runner: CliRunner) -> None:
assert "--budget" in self._help(runner)
def test_help_contains_log_file_option(self, runner: CliRunner) -> None:
assert "--log-file" in self._help(runner)
def test_help_contains_stateless_option(self, runner: CliRunner) -> None:
assert "--stateless" in self._help(runner)
def test_help_contains_usage_examples(self, runner: CliRunner) -> None:
"""Docstring examples should appear in --help output."""
out = self._help(runner)
assert "ANTHROPIC_BASE_URL" in out
def test_proxy_short_help_alias(self, runner: CliRunner) -> None:
result = runner.invoke(main, ["proxy", "-?"])
assert result.exit_code == 0, result.output
assert "--mode" in result.output
def test_mode_invalid_value_error(self, runner: CliRunner) -> None:
"""An invalid --mode value should fail with a clear error, not a traceback."""
result = runner.invoke(main, ["proxy", "--mode", "bogus_mode_xyz"])
assert result.exit_code != 0
assert "invalid" in result.output.lower() or "choice" in result.output.lower()