mirror of
https://github.com/NousResearch/hermes-agent.git
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39975613b1
Second, deeper pass over tools/gateway/hermes_cli plus first pass over the trees wave 1 missed (acp, acp_adapter, skills, computer_use, docker, dashboard, conformance, monitoring, secret_sources, hermes_state, providers). Same rubric as wave 1 (AGENTS.md test policy); security, alternation/caching invariants, issue-number regressions, and E2E kept. Real test-quality fixes found and rooted out along the way: - tests/tools/test_command_guards.py made real auxiliary-LLM HTTPS calls (DEFAULT_CONFIG smart-approval leaked in) — pinned approval mode=manual via autouse fixture: 17.4s → 0.4s. - test_model_switch_custom_providers.py / test_user_providers_model_switch.py silently probed live provider catalogs (~2s/test) — stubbed cached_provider_model_ids/provider_model_ids/fetch_api_models. - test_telegram_noise_filter.py: 15-platform copy-paste matrix over shared gateway.run logic → 3 representative platforms (55s → 3.9s). - test_gateway_shutdown.py: stop()'s 5s interrupt-deadline loop spun on MagicMock agents — interrupt.side_effect now clears _running_agents (22s → 1.0s). - test_gateway_inactivity_timeout.py poll-harness timings shrunk 3-5x (24s → 1.1s); test_mcp_stability.py backoff/SIGTERM-grace sleeps patched (15.4s → 2.5s); test_async_delegation.py negative-drain wait 5s → 0.5s. - test_telegram_init_deadline.py: loop-block margin restored to 1.0s with rationale comment — the watchdog-dump assertion needs the loop blocked well past deadline+grace under parallel load (flaked once in the 40-worker verification run at a 0.2s margin). Verification: full hermetic suite via scripts/run_tests.sh — 2,438 files, 21,718 tests passed, 0 failed, 293.9s wall. Suite totals vs original baseline: 46,820 → 19,757 test functions (−57.8%), wall 583.5s → 293.9s (−50%), subprocess CPU 13,564s → 11,623s.
430 lines
19 KiB
Python
430 lines
19 KiB
Python
"""Tests for Lightpanda engine support in browser_tool.py."""
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import json
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import os
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from unittest.mock import MagicMock, patch
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import pytest
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# ---------------------------------------------------------------------------
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# Helpers
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# ---------------------------------------------------------------------------
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def _reset_engine_cache():
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"""Reset the module-level engine cache so tests start clean."""
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import tools.browser_tool as bt
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bt._cached_browser_engine = None
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bt._browser_engine_resolved = False
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@pytest.fixture(autouse=True)
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def _clean_engine_cache():
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"""Reset engine cache before and after each test."""
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_reset_engine_cache()
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yield
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_reset_engine_cache()
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# ---------------------------------------------------------------------------
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# _get_browser_engine
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# ---------------------------------------------------------------------------
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class TestGetBrowserEngine:
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"""Test engine resolution from config and env vars."""
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def test_default_is_auto(self):
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"""With no config or env var, engine defaults to 'auto'."""
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from tools.browser_tool import _get_browser_engine
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with patch.dict(os.environ, {}, clear=False):
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os.environ.pop("AGENT_BROWSER_ENGINE", None)
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with patch("hermes_cli.config.read_raw_config", return_value={}):
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assert _get_browser_engine() == "auto"
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def test_config_lightpanda(self):
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"""Config browser.engine = 'lightpanda' is respected."""
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from tools.browser_tool import _get_browser_engine
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cfg = {"browser": {"engine": "lightpanda"}}
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with patch("hermes_cli.config.read_raw_config", return_value=cfg):
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assert _get_browser_engine() == "lightpanda"
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def test_caching(self):
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"""Result is cached — second call doesn't re-read config."""
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from tools.browser_tool import _get_browser_engine
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mock_read = MagicMock(return_value={"browser": {"engine": "lightpanda"}})
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with patch("hermes_cli.config.read_raw_config", mock_read):
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assert _get_browser_engine() == "lightpanda"
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assert _get_browser_engine() == "lightpanda"
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mock_read.assert_called_once()
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# ---------------------------------------------------------------------------
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# _should_inject_engine
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# ---------------------------------------------------------------------------
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class TestShouldInjectEngine:
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"""Test whether --engine flag is injected based on mode."""
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def test_auto_never_injects(self):
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from tools.browser_tool import _should_inject_engine
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assert _should_inject_engine("auto") is False
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def test_lightpanda_injects_in_local_mode(self):
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from tools.browser_tool import _should_inject_engine
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with patch("tools.browser_tool._is_camofox_mode", return_value=False), \
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patch("tools.browser_tool._get_cdp_override", return_value=""), \
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patch("tools.browser_tool._get_cloud_provider", return_value=None):
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assert _should_inject_engine("lightpanda") is True
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def test_chrome_injects_in_local_mode(self):
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from tools.browser_tool import _should_inject_engine
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with patch("tools.browser_tool._is_camofox_mode", return_value=False), \
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patch("tools.browser_tool._get_cdp_override", return_value=""), \
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patch("tools.browser_tool._get_cloud_provider", return_value=None):
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assert _should_inject_engine("chrome") is True
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def test_no_inject_in_camofox_mode(self):
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from tools.browser_tool import _should_inject_engine
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with patch("tools.browser_tool._is_camofox_mode", return_value=True):
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assert _should_inject_engine("lightpanda") is False
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def test_no_inject_with_cdp_override(self):
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from tools.browser_tool import _should_inject_engine
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with patch("tools.browser_tool._is_camofox_mode", return_value=False), \
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patch("tools.browser_tool._get_cdp_override_raw", return_value="ws://localhost:9222"):
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assert _should_inject_engine("lightpanda") is False
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# ---------------------------------------------------------------------------
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# _needs_lightpanda_fallback
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# ---------------------------------------------------------------------------
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class TestNeedsLightpandaFallback:
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"""Test fallback detection for Lightpanda results."""
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def test_non_lightpanda_never_falls_back(self):
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from tools.browser_tool import _needs_lightpanda_fallback
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result = {"success": False, "error": "timeout"}
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assert _needs_lightpanda_fallback("chrome", "open", result) is False
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assert _needs_lightpanda_fallback("auto", "open", result) is False
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def test_failed_command_triggers_fallback(self):
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from tools.browser_tool import _needs_lightpanda_fallback
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result = {"success": False, "error": "page.goto: Timeout"}
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assert _needs_lightpanda_fallback("lightpanda", "open", result) is True
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def test_empty_snapshot_triggers_fallback(self):
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from tools.browser_tool import _needs_lightpanda_fallback
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result = {"success": True, "data": {"snapshot": ""}}
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assert _needs_lightpanda_fallback("lightpanda", "snapshot", result) is True
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def test_unknown_command_does_not_trigger_fallback(self):
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"""Commands not in the whitelist should not trigger fallback."""
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from tools.browser_tool import _needs_lightpanda_fallback
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result = {"success": False, "error": "nope"}
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assert _needs_lightpanda_fallback("lightpanda", "some_future_cmd", result) is False
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# ---------------------------------------------------------------------------
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# Config integration
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# ---------------------------------------------------------------------------
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class TestConfigIntegration:
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"""Verify engine config is in DEFAULT_CONFIG."""
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def test_engine_in_default_config(self):
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from hermes_cli.config import DEFAULT_CONFIG
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assert "engine" in DEFAULT_CONFIG["browser"]
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assert DEFAULT_CONFIG["browser"]["engine"] == "auto"
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def test_env_var_registered(self):
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from hermes_cli.config import OPTIONAL_ENV_VARS
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assert "AGENT_BROWSER_ENGINE" in OPTIONAL_ENV_VARS
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entry = OPTIONAL_ENV_VARS["AGENT_BROWSER_ENGINE"]
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assert entry["category"] == "tool"
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assert entry["advanced"] is True
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class TestLightpandaRequirements:
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"""Lightpanda should expose browser tools without local Chromium."""
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def test_lightpanda_local_mode_does_not_require_chromium(self):
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import tools.browser_tool as bt
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with patch("tools.browser_tool._is_camofox_mode", return_value=False), \
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patch("tools.browser_tool._get_cdp_override", return_value=""), \
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patch("tools.browser_tool._find_agent_browser", return_value="/usr/bin/agent-browser"), \
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patch("tools.browser_tool._requires_real_termux_browser_install", return_value=False), \
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patch("tools.browser_tool._get_cloud_provider", return_value=None), \
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patch("tools.browser_tool._get_browser_engine", return_value="lightpanda"), \
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patch("tools.browser_tool._chromium_installed", return_value=False):
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assert bt.check_browser_requirements() is True
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def test_chrome_local_mode_still_requires_chromium(self):
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import tools.browser_tool as bt
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with patch("tools.browser_tool._is_camofox_mode", return_value=False), \
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patch("tools.browser_tool._get_cdp_override", return_value=""), \
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patch("tools.browser_tool._find_agent_browser", return_value="/usr/bin/agent-browser"), \
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patch("tools.browser_tool._requires_real_termux_browser_install", return_value=False), \
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patch("tools.browser_tool._get_cloud_provider", return_value=None), \
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patch("tools.browser_tool._get_browser_engine", return_value="auto"), \
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patch("tools.browser_tool._chromium_installed", return_value=False):
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assert bt.check_browser_requirements() is False
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# ---------------------------------------------------------------------------
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# cleanup_all_browsers resets engine cache
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# ---------------------------------------------------------------------------
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class TestCleanupResetsEngineCache:
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"""Verify cleanup_all_browsers resets engine-related globals."""
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def test_engine_cache_reset(self):
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import tools.browser_tool as bt
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# Seed the cache
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bt._cached_browser_engine = "lightpanda"
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bt._browser_engine_resolved = True
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# cleanup should reset them
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bt.cleanup_all_browsers()
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assert bt._cached_browser_engine is None
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assert bt._browser_engine_resolved is False
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# ---------------------------------------------------------------------------
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# fallback warning annotation
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# ---------------------------------------------------------------------------
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class TestLightpandaFallbackWarning:
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"""Verify Chrome fallback results are annotated for users."""
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def test_fallback_result_gets_user_visible_warning(self):
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from tools.browser_tool import _annotate_lightpanda_fallback
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result = {"success": True, "data": {"snapshot": "- heading \"Hello\" [ref=e1]"}}
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annotated = _annotate_lightpanda_fallback(
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result,
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"Lightpanda returned an empty/too-short snapshot; retried with Chrome.",
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)
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assert annotated["browser_engine"] == "chrome"
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assert "Lightpanda fallback" in annotated["fallback_warning"]
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assert annotated["browser_engine_fallback"] == {
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"from": "lightpanda",
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"to": "chrome",
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"reason": "Lightpanda returned an empty/too-short snapshot; retried with Chrome.",
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}
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assert annotated["data"]["fallback_warning"] == annotated["fallback_warning"]
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assert annotated["data"]["browser_engine"] == "chrome"
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def test_browser_navigate_surfaces_fallback_warning(self):
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import json
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import tools.browser_tool as bt
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result = bt._annotate_lightpanda_fallback(
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{"success": True, "data": {"title": "Fallback OK", "url": "https://example.com/"}},
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"synthetic Lightpanda failure; retried with Chrome.",
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)
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with patch("tools.browser_tool._is_local_backend", return_value=True), \
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patch("tools.browser_tool._get_cloud_provider", return_value=None), \
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patch("tools.browser_tool._get_session_info", return_value={
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"session_name": "test", "_first_nav": False, "features": {"local": True, "proxies": True}
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}), \
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patch("tools.browser_tool._run_browser_command", side_effect=[
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result,
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{"success": True, "data": {"snapshot": "- heading \"Fallback OK\" [ref=e1]", "refs": {"e1": {}}}},
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]):
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response = json.loads(bt.browser_navigate("https://example.com", task_id="warn-test"))
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assert response["success"] is True
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assert response["browser_engine"] == "chrome"
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assert "Lightpanda fallback" in response["fallback_warning"]
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assert response["browser_engine_fallback"]["from"] == "lightpanda"
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assert response["browser_engine_fallback"]["to"] == "chrome"
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bt._last_active_session_key.pop("warn-test", None)
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def test_browser_vision_lightpanda_response_has_structured_fallback(self, tmp_path):
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import json
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import tools.browser_tool as bt
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chrome_shot = tmp_path / "chrome-structured.png"
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chrome_shot.write_bytes(b"\x89PNG" + b"0" * 128)
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class _Msg:
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content = "Example Domain screenshot"
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class _Choice:
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message = _Msg()
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class _Response:
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choices = [_Choice()]
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with patch("tools.browser_tool._get_browser_engine", return_value="lightpanda"), \
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patch("tools.browser_tool._should_inject_engine", return_value=True), \
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patch("tools.browser_tool._chrome_fallback_screenshot", return_value={
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"success": True, "data": {"path": str(chrome_shot)}
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}), \
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patch("hermes_constants.get_hermes_dir", return_value=tmp_path), \
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patch("tools.browser_tool.call_llm", return_value=_Response()):
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response = json.loads(bt.browser_vision("what is this?", task_id="vision-structured"))
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assert response["success"] is True
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assert response["browser_engine"] == "chrome"
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assert response["browser_engine_fallback"] == {
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"from": "lightpanda",
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"to": "chrome",
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"reason": "Lightpanda has no graphical renderer for screenshots; used Chrome for vision capture.",
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}
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# ---------------------------------------------------------------------------
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# _engine_override parameter
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# ---------------------------------------------------------------------------
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class TestEngineOverride:
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"""Verify _engine_override bypasses the cached engine."""
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@patch("tools.browser_tool._get_session_info")
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@patch("tools.browser_tool._find_agent_browser", return_value="/usr/bin/agent-browser")
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@patch("tools.browser_tool._is_local_mode", return_value=True)
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@patch("tools.browser_tool._chromium_installed", return_value=True)
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@patch("tools.browser_tool._get_cloud_provider", return_value=None)
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@patch("tools.browser_tool._get_cdp_override", return_value="")
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@patch("tools.browser_tool._is_camofox_mode", return_value=False)
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def test_override_prevents_engine_injection(
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self, _camofox, _cdp, _cloud, _chromium, _local, _find, _session
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):
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"""When _engine_override='auto', --engine flag is NOT injected."""
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import tools.browser_tool as bt
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# Set the global cache to lightpanda
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bt._cached_browser_engine = "lightpanda"
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bt._browser_engine_resolved = True
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_session.return_value = {"session_name": "test-sess"}
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# Track the cmd_parts that Popen receives
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captured_cmds = []
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mock_proc = MagicMock()
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mock_proc.wait.return_value = None
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mock_proc.returncode = 0
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def capture_popen(cmd, **kwargs):
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captured_cmds.append(cmd)
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return mock_proc
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# We need to mock the file operations too
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with patch("subprocess.Popen", side_effect=capture_popen), \
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patch("os.open", return_value=99), \
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patch("os.close"), \
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patch("os.unlink"), \
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patch("os.makedirs"), \
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patch("builtins.open", MagicMock(return_value=MagicMock(
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__enter__=MagicMock(return_value=MagicMock(read=MagicMock(return_value='{"success": true, "data": {}}'))),
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__exit__=MagicMock(return_value=False),
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))), \
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patch("tools.interrupt.is_interrupted", return_value=False), \
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patch("tools.browser_tool._write_owner_pid"):
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bt._run_browser_command("task1", "snapshot", [], _engine_override="auto")
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# Should NOT contain "--engine" since override is "auto"
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assert len(captured_cmds) == 1
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assert "--engine" not in captured_cmds[0]
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@patch("tools.browser_tool._get_session_info")
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@patch("tools.browser_tool._find_agent_browser", return_value="/usr/bin/agent-browser")
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@patch("tools.browser_tool._is_local_mode", return_value=True)
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@patch("tools.browser_tool._chromium_installed", return_value=True)
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@patch("tools.browser_tool._get_cloud_provider", return_value=None)
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@patch("tools.browser_tool._get_cdp_override", return_value="")
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@patch("tools.browser_tool._is_camofox_mode", return_value=False)
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def test_no_override_uses_cached_engine(
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self, _camofox, _cdp, _cloud, _chromium, _local, _find, _session
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):
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"""Without _engine_override, the cached engine is used."""
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import tools.browser_tool as bt
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bt._cached_browser_engine = "lightpanda"
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bt._browser_engine_resolved = True
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_session.return_value = {"session_name": "test-sess"}
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captured_cmds = []
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mock_proc = MagicMock()
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mock_proc.wait.return_value = None
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mock_proc.returncode = 0
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def capture_popen(cmd, **kwargs):
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captured_cmds.append(cmd)
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return mock_proc
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# Return a substantive snapshot so the LP fallback does NOT trigger.
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mock_stdout = '{"success": true, "data": {"snapshot": "- heading \\"Hello\\" [ref=e1]", "refs": {"e1": {}}}}'
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with patch("subprocess.Popen", side_effect=capture_popen), \
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patch("os.open", return_value=99), \
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patch("os.close"), \
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patch("os.unlink"), \
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patch("os.makedirs"), \
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patch("builtins.open", MagicMock(return_value=MagicMock(
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__enter__=MagicMock(return_value=MagicMock(read=MagicMock(return_value=mock_stdout))),
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__exit__=MagicMock(return_value=False),
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))), \
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patch("tools.interrupt.is_interrupted", return_value=False), \
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patch("tools.browser_tool._write_owner_pid"):
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bt._run_browser_command("task1", "snapshot", [])
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# SHOULD contain "--engine lightpanda"
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assert len(captured_cmds) == 1
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assert "--engine" in captured_cmds[0]
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engine_idx = captured_cmds[0].index("--engine")
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assert captured_cmds[0][engine_idx + 1] == "lightpanda"
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def test_hybrid_local_sidecar_injects_engine_even_with_cloud_provider(self):
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"""A task::local sidecar is local even when global cloud config exists."""
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import tools.browser_tool as bt
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bt._cached_browser_engine = "lightpanda"
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bt._browser_engine_resolved = True
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captured_cmds = []
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mock_provider = MagicMock()
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mock_proc = MagicMock()
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mock_proc.wait.return_value = None
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mock_proc.returncode = 0
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def capture_popen(cmd, **kwargs):
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captured_cmds.append(cmd)
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return mock_proc
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mock_stdout = json.dumps({
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"success": True,
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"data": {"snapshot": '- heading "Hello" [ref=e1]', "refs": {"e1": {}}},
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})
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with patch("tools.browser_tool._get_session_info", return_value={"session_name": "local-sidecar"}), \
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patch("tools.browser_tool._find_agent_browser", return_value="/usr/bin/agent-browser"), \
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patch("tools.browser_tool._is_local_mode", return_value=False), \
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patch("tools.browser_tool._chromium_installed", return_value=True), \
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patch("tools.browser_tool._get_cloud_provider", return_value=mock_provider), \
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patch("tools.browser_tool._get_cdp_override", return_value=""), \
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patch("tools.browser_tool._is_camofox_mode", return_value=False), \
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patch("subprocess.Popen", side_effect=capture_popen), \
|
|
patch("os.open", return_value=99), \
|
|
patch("os.close"), \
|
|
patch("os.unlink"), \
|
|
patch("os.makedirs"), \
|
|
patch("builtins.open", MagicMock(return_value=MagicMock(
|
|
__enter__=MagicMock(return_value=MagicMock(read=MagicMock(return_value=mock_stdout))),
|
|
__exit__=MagicMock(return_value=False),
|
|
))), \
|
|
patch("tools.interrupt.is_interrupted", return_value=False), \
|
|
patch("tools.browser_tool._write_owner_pid"):
|
|
bt._run_browser_command("task::local", "snapshot", [])
|
|
|
|
assert len(captured_cmds) == 1
|
|
assert "--engine" in captured_cmds[0]
|
|
assert captured_cmds[0][captured_cmds[0].index("--engine") + 1] == "lightpanda"
|