Files
LEDMatrix/test/test_resource_limits_validation.py
ChuckandClaude Opus 5.5 7ab6fb1aff refactor(web): read plugins through a PluginCatalog; only the display runs them (#688)
The web process built its own PluginManager and loaded plugins into itself:
store installs and updates loaded or reloaded a web-side copy, and config
saves and enable/disable called on_config_change, on_enable and on_disable
on it. None of that reached the panel, and /plugins/installed reported
runtime state from those copies.

- Add PluginCatalog (src/plugin_system/plugin_catalog.py): manifests,
  directories, display modes, installed version, schema and config reads,
  with no way to run a plugin. app.py and both blueprints use it; the
  plugin_manager blueprint attribute is gone.
- Remove every lifecycle call from the web routes. Config changes already
  reach the display through ConfigService (on_config_change) and the
  enabled-set reconcile.
- Health and metrics readers move to api_v3.health_tracker /
  resource_monitor. /plugins/installed reports loaded/state/error_info as
  null (the display does not publish them) and enabled by the display's
  rule.
- Store install, update and uninstall answer restart_required when the
  running display will not pick the change up by itself
  (display_restart_required). The restart banner follows the flag via
  window.noteRestartRequired instead of the /config/main URL heuristic;
  /config/main now sends restart_required: true.
- The one remaining in-process import of plugin code (Starlark helper
  modules, oauth_flow action scripts) goes through
  _import_plugin_code_in_web_process() until a web-entry contract.
- /plugins/installed reports vegas_participation (from #682) from the
  user's setting or the manifest, with vegas_participation_source; when
  only the plugin's code decides it, null with source 'runtime', since the
  web process no longer has plugin instances to ask.
- Check & Update All keeps its restart flags when the final list refresh
  fails, and asks for a restart when an enabled plugin's first request got
  no answer and the re-sent one found it up to date.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-30 10:39:44 -04:00

82 lines
2.8 KiB
Python

"""Resource limits are validated before the monitor uses them.
POST /plugins/limits/<id> built ResourceLimits straight from the request
JSON, and get_limits() did ``ResourceLimits(**cached)``. A dataclass does not
check its annotations, so ``{"max_execution_time": "5"}`` was stored as a
string and every later monitored update() of that plugin raised TypeError
comparing a float with it -- and an unknown key in the cached record raised
TypeError on load.
"""
import sys
from pathlib import Path
from unittest.mock import MagicMock
import pytest
sys.path.insert(0, str(Path(__file__).parent.parent))
from src.plugin_system.resource_monitor import ( # noqa: E402
PluginResourceMonitor,
)
from test._api_v3_test_helpers import api_v3_client, api_v3_module # noqa: F401,E402
class SharedCache:
def __init__(self):
self.entries = {}
def get(self, key, max_age=None, memory_ttl=None):
return self.entries.get(key)
def set(self, key, value, *args, **kwargs):
self.entries[key] = value
def delete(self, key):
self.entries.pop(key, None)
@pytest.fixture
def shared_cache(api_v3_module):
cache = SharedCache()
api_v3_module.api_v3.resource_monitor = PluginResourceMonitor(
cache, enable_monitoring=False)
return cache
@pytest.mark.parametrize("body", [
{"max_execution_time": "5"},
{"max_memory_mb": -1},
{"max_cpu_percent": True},
{"warning_threshold": "high"},
{"max_execution_time": [1]},
])
def test_post_rejects_bad_limits_with_400(api_v3_client, shared_cache, body):
resp = api_v3_client.post("/api/v3/plugins/limits/weather", json=body)
assert resp.status_code == 400
assert resp.get_json()["status"] == "error"
assert "plugin_limits:weather" not in shared_cache.entries
def test_post_accepts_numbers_and_nulls(api_v3_client, shared_cache):
resp = api_v3_client.post("/api/v3/plugins/limits/weather", json={
"max_memory_mb": 50, "max_cpu_percent": None, "max_execution_time": 5.0})
assert resp.status_code == 200
data = api_v3_client.get("/api/v3/plugins/limits/weather").get_json()["data"]
assert data == {"max_memory_mb": 50, "max_cpu_percent": None,
"max_execution_time": 5.0, "warning_threshold": 0.8}
@pytest.mark.parametrize("cached", [
{"max_execution_time": "5"},
{"max_execution_time": 5.0, "consecutive_failures": 3},
])
def test_bad_cached_limits_do_not_break_monitored_calls(cached):
cache = MagicMock()
cache.get.side_effect = lambda key, **kw: cached if key == "plugin_limits:p" else None
mon = PluginResourceMonitor(cache, enable_monitoring=False)
# Unknown keys are dropped; a malformed value means "no limits".
assert mon.monitor_call("p", lambda: "ok") == "ok"
assert mon.monitor_call("p", lambda: "ok") == "ok"