hermes-agent/tests/run_agent/conftest.py
Teknium 3207b9bda0
test: speed up slow tests (backoff + subprocess + IMDS network) (#11797)
Cuts shard-3 local runtime in half by neutralizing real wall-clock
waits across three classes of slow test:

## 1. Retry backoff mocks

- tests/run_agent/conftest.py (NEW): autouse fixture mocks
  jittered_backoff to 0.0 so the `while time.time() < sleep_end`
  busy-loop exits immediately. No global time.sleep mock (would
  break threading tests).
- test_anthropic_error_handling, test_413_compression,
  test_run_agent_codex_responses, test_fallback_model: per-file
  fixtures mock time.sleep / asyncio.sleep for retry / compression
  paths.
- test_retaindb_plugin: cap the retaindb module's bound time.sleep
  to 0.05s via a per-test shim (background writer-thread retries
  sleep 2s after errors; tests don't care about exact duration).
  Plus replace arbitrary time.sleep(N) waits with short polling
  loops bounded by deadline.

## 2. Subprocess sleeps in production code

- test_update_gateway_restart: mock time.sleep. Production code
  does time.sleep(3) after `systemctl restart` to verify the
  service survived. Tests mock subprocess.run \u2014 nothing actually
  restarts \u2014 so the wait is dead time.

## 3. Network / IMDS timeouts (biggest single win)

- tests/conftest.py: add AWS_EC2_METADATA_DISABLED=true plus
  AWS_METADATA_SERVICE_TIMEOUT=1 and ATTEMPTS=1. boto3 falls back
  to IMDS (169.254.169.254) when no AWS creds are set. Any test
  hitting has_aws_credentials() / resolve_aws_auth_env_var() (e.g.
  test_status, test_setup_copilot_acp, anything that touches
  provider auto-detect) burned ~2-4s waiting for that to time out.
- test_exit_cleanup_interrupt: explicitly mock
  resolve_runtime_provider which was doing real network auto-detect
  (~4s). Tests don't care about provider resolution \u2014 the agent
  is already mocked.
- test_timezone: collapse the 3-test "TZ env in subprocess" suite
  into 2 tests by checking both injection AND no-leak in the same
  subprocess spawn (was 3 \u00d7 3.2s, now 2 \u00d7 4s).

## Validation

| Test | Before | After |
|---|---|---|
| test_anthropic_error_handling (8 tests) | ~80s | ~15s |
| test_413_compression (14 tests) | ~18s | 2.3s |
| test_retaindb_plugin (67 tests) | ~13s | 1.3s |
| test_status_includes_tavily_key | 4.0s | 0.05s |
| test_setup_copilot_acp_skips_same_provider_pool_step | 8.0s | 0.26s |
| test_update_gateway_restart (5 tests) | ~18s total | ~0.35s total |
| test_exit_cleanup_interrupt (2 tests) | 8s | 1.5s |
| **Matrix shard 3 local** | **108s** | **50s** |

No behavioral contract changed \u2014 tests still verify retry happens,
service restart logic runs, etc.; they just don't burn real seconds
waiting for it.

Supersedes PR #11779 (those changes are included here).
2026-04-17 14:21:22 -07:00

34 lines
1.3 KiB
Python

"""Fast-path fixtures shared across tests/run_agent/.
Many tests in this directory exercise the retry/backoff paths in the
agent loop. Production code uses ``jittered_backoff(base_delay=5.0)``
with a ``while time.time() < sleep_end`` loop — a single retry test
spends 5+ seconds of real wall-clock time on backoff waits.
Mocking ``jittered_backoff`` to return 0.0 collapses the while-loop
to a no-op (``time.time() < time.time() + 0`` is false immediately),
which handles the most common case without touching ``time.sleep``.
We deliberately DO NOT mock ``time.sleep`` here — some tests
(test_interrupt_propagation, test_primary_runtime_restore, etc.) use
the real ``time.sleep`` for threading coordination or assert that it
was called with specific values. Tests that want to additionally
fast-path direct ``time.sleep(N)`` calls in production code should
monkeypatch ``run_agent.time.sleep`` locally (see
``test_anthropic_error_handling.py`` for the pattern).
"""
from __future__ import annotations
import pytest
@pytest.fixture(autouse=True)
def _fast_retry_backoff(monkeypatch):
"""Short-circuit retry backoff for all tests in this directory."""
try:
import run_agent
except ImportError:
return
monkeypatch.setattr(run_agent, "jittered_backoff", lambda *a, **k: 0.0)