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headroom/tests/test_cli_proxy_improvements.py
Shubham Srivastava f9f3162d38
docs(proxy): document HEADROOM_SAVINGS_PROFILE and correct --mode default (#2031) (#2040) 
## Description

`HEADROOM_SAVINGS_PROFILE` is an implemented env var
(`headroom/agent_savings.py`) that selects a named profile bundling
Headroom's whole compression posture (proxy mode, keep-ratio, which
messages are compressed, `force_kompress`, etc.) at proxy startup. It
was entirely undocumented — `grep` over `docs/` found zero mentions.

Related, the proxy docs were **misleading about the default optimization
mode**: `docs/content/docs/proxy.mdx` stated `--mode` defaults to
`token`, but the code default is `cache`:

```python
# headroom/cli/proxy.py — the Click option has no default
@click.option("--mode", default=None, ...)
# ... mode resolution (default is CACHE):
effective_mode = normalize_proxy_mode(mode or os.environ.get("HEADROOM_MODE") or PROXY_MODE_CACHE)
```

A bare `headroom proxy` (no `--mode`, no `HEADROOM_MODE`) runs in
**cache** mode, and the default `coding` savings profile also sets
`proxy_mode="cache"` — which is exactly what the issue reporter found
confusing.

This documents `HEADROOM_SAVINGS_PROFILE` and corrects the `--mode`
default rows so the doc is accurate and internally consistent.

Closes #2031

## Type of Change

- [ ] Bug fix (non-breaking change that fixes an issue)
- [ ] New feature (non-breaking change that adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [x] Documentation update
- [ ] Performance improvement
- [ ] Code refactoring (no functional changes)

## Changes Made

`docs/content/docs/proxy.mdx` only:

- Corrected the `--mode` default in the Core-options table and the
Context-management table (`token` → `cache`), each pointing to the new
Savings profiles section for the reason.
- Added a `### Savings profiles` section documenting: the
`HEADROOM_SAVINGS_PROFILE` env var; a table of the four built-in
profiles (`coding` default, `balanced` fallback, `agent-90`, `general`)
with target savings, mode, and `force_kompress`; the unset→`coding`
default; the unknown-value→`balanced` warning-and-fallback (proxy never
fails to start); and the mode precedence (explicit `--mode` >
`HEADROOM_MODE` seeded by a profile > `cache` default), with an example.

No code change. Every documented value is pinned to
`headroom/agent_savings.py` (profile definitions) and
`headroom/cli/proxy.py` (default-mode resolution).

## Testing

- [x] Unit tests not run; docs-only source verification performed
- [x] Linting not run; docs-only MDX/source verification performed
- [x] Type checking not applicable; no Python code changed
- [x] New tests not applicable; documentation-only correction
- [x] Manual testing performed

### Test Output

Docs-only change; verification is cross-checking every documented value
against the source of truth:

```text
$ grep -n "DEFAULT_PROFILE = \|FALLBACK_PROFILE = " headroom/agent_savings.py
14:FALLBACK_PROFILE = "balanced"
18:DEFAULT_PROFILE = "coding"

# profile modes / knobs (agent_savings.py):
#   coding   → proxy_mode="cache",  force_kompress=False, target_ratio=None (emergent)
#   balanced → proxy_mode="token",  force_kompress=False, target_ratio=0.30
#   agent-90 → proxy_mode="token",  force_kompress=True,  target_ratio=0.10
#   general  → proxy_mode="token",  force_kompress=False, target_ratio=None (emergent)

$ grep -n "effective_mode\|PROXY_MODE_CACHE" headroom/cli/proxy.py
# effective_mode = normalize_proxy_mode(mode or os.environ.get("HEADROOM_MODE") or PROXY_MODE_CACHE)
# → confirms the real default optimization mode is cache, not token
```

MDX sanity: code fences balance (even count) and the `### Savings
profiles` heading slugifies to `#savings-profiles`, matching the two
in-page anchor links added to the mode rows.

## Real Behavior Proof

- **Environment:** Windows 11; docs source inspected against the working
tree at the current `main` base.
- **Exact command / steps:** Each documented fact is grounded in code —
profile names, modes, `force_kompress`, and target ratios come from
`headroom/agent_savings.py:_PROFILES`; the default profile (`coding`)
from the `os.environ.get("HEADROOM_SAVINGS_PROFILE") or "coding"` reads
in `headroom/cli/proxy.py` and `headroom/proxy/server.py`; the `cache`
default mode from `headroom/cli/proxy.py`'s `mode or HEADROOM_MODE or
PROXY_MODE_CACHE`; the unknown-value fallback from
`get_agent_savings_profile` (`agent_savings.py`).
- **Observed result:** The new section's table and prose match those
sources exactly, and the previously-wrong `--mode` default rows now
state `cache`.
- **Not tested:** A live render of the Fumadocs/Next.js docs site (no
local docs build run here) — the change is MDX-syntax-valid (balanced
fences, well-formed table, standard heading-anchor slug).

## 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] Code comments not applicable; documentation-only change
- [x] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [x] Tests not applicable; docs-only facts verified against source
- [x] New and existing unit tests pass locally with my changes
- [x] CHANGELOG not applicable; documentation-only correction

## Screenshots (if applicable)

N/A (docs prose/table addition; a rendered screenshot can be added if
the docs site is built for preview).

## Additional Notes

- Test/tests-added checklist items are N/A — this is a
documentation-only change.
- Out of scope (intentionally): the `--mode` Click **help text** in
`headroom/cli/proxy.py` also says "default: token" and is likewise
inaccurate, but correcting Python help text is a code change beyond this
docs issue — noted as a possible follow-up.

---------

Co-authored-by: JerrettDavis <mxjerrett@gmail.com>
2026-07-14 14:10:28 -04:00

549 lines
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"""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 TestHttpProxyOption:
"""--http-proxy should configure only the provider HTTPX clients."""
def test_http_proxy_cli_flag(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy", "--http-proxy", "http://proxy.local:8080"],
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].http_proxy == "http://proxy.local:8080"
def test_http_proxy_env_var(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy"],
env={"HEADROOM_HTTP_PROXY": "http://proxy.local:8080"},
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].http_proxy == "http://proxy.local:8080"
def test_direct_server_env_http_proxy(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_HTTP_PROXY", "http://proxy.local:8080")
config = server_mod._proxy_config_from_env()
assert config.http_proxy == "http://proxy.local:8080"
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 TestRetryDelayValidation:
def test_retry_delays_are_forwarded(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy", "--retry-base-delay-ms", "250", "--retry-max-delay-ms", "5000"],
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].retry_base_delay_ms == 250
assert mock_run_server["config"].retry_max_delay_ms == 5000
@pytest.mark.parametrize("option", ["--retry-base-delay-ms", "--retry-max-delay-ms"])
def test_negative_delay_is_rejected(self, runner: CliRunner, option: str) -> None:
result = runner.invoke(main, ["proxy", option, "-1"])
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_retry_delays_from_env(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy"],
env={
"HEADROOM_RETRY_BASE_DELAY_MS": "125",
"HEADROOM_RETRY_MAX_DELAY_MS": "8000",
},
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].retry_base_delay_ms == 125
assert mock_run_server["config"].retry_max_delay_ms == 8000
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_reports_cache_as_default_mode(self, runner: CliRunner) -> None:
out = self._help(runner)
assert "Optimization mode (default: cache)" in out
assert "Optimization mode (default: token)" not in out
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()
class TestCompressionMaxWorkers:
"""--compression-max-workers / HEADROOM_COMPRESSION_MAX_WORKERS must reach ProxyConfig.
Regression: the field was documented in ProxyConfig and consumed by the
server, but the CLI never defined the option or passed it through, so it
was permanently None (always resolving to the automatic server default).
"""
def test_flag_reaches_config(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main, ["proxy", "--compression-max-workers", "3"], catch_exceptions=False
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].compression_max_workers == 3
def test_env_reaches_config(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(
main,
["proxy"],
env={"HEADROOM_COMPRESSION_MAX_WORKERS": "5"},
catch_exceptions=False,
)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].compression_max_workers == 5
def test_default_is_none(self, runner: CliRunner, mock_run_server: dict) -> None:
result = runner.invoke(main, ["proxy"], catch_exceptions=False)
assert result.exit_code == 0, result.output
assert mock_run_server["config"].compression_max_workers is None
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