Files
LEDMatrix/test/test_health_monitor.py
Claude 4977c5fbc9 test: add 306 new tests covering previously untested modules
Adds test coverage for six major untested areas:
- src/base_classes/api_extractors.py — ESPN football, baseball, hockey, soccer extractors
- src/base_classes/data_sources.py — ESPN, MLB, and soccer API data sources (HTTP mocked)
- src/common/game_helper.py — game extraction, filtering, sorting, and summaries
- src/common/utils.py — all utility functions (normalise, format, validate, parse)
- src/common/scroll_helper.py — ScrollHelper init, create, update, visible portion, duration
- src/background_data_service.py — cache hit/miss paths, retry, cancel, cleanup, singleton
- src/vegas_mode/config.py — VegasModeConfig from_config, validate, update, ordering
- src/logo_downloader.py — normalize_abbreviation, filename variations, directory helpers
- src/plugin_system/health_monitor.py — HealthStatus determination, metrics, suggestions, lifecycle

https://claude.ai/code/session_015792DiGo27JbgH5mk3KBjk
2026-05-24 02:45:27 +00:00

304 lines
12 KiB
Python

"""
Tests for src/plugin_system/health_monitor.py
Covers PluginHealthMonitor: get_plugin_health_status, get_plugin_health_metrics,
get_all_plugin_health, _get_recovery_suggestions, start/stop_monitoring,
register_health_check.
"""
import pytest
from unittest.mock import MagicMock, patch
from datetime import datetime
from src.plugin_system.health_monitor import (
PluginHealthMonitor,
HealthStatus,
HealthMetrics,
)
# ---------------------------------------------------------------------------
# Fixtures
# ---------------------------------------------------------------------------
def _make_health_tracker(
summary: dict | None = None,
all_summaries: dict | None = None,
):
"""Return a mock PluginHealthTracker."""
tracker = MagicMock()
tracker.get_health_summary.return_value = summary
tracker.get_all_health_summaries.return_value = all_summaries or {}
return tracker
def _healthy_summary() -> dict:
return {
"success_rate": 100.0,
"circuit_state": "closed",
"consecutive_failures": 0,
"total_failures": 0,
"total_successes": 50,
"last_success_time": datetime.now().isoformat(),
"last_error": None,
}
def _degraded_summary() -> dict:
return {
"success_rate": 40.0, # 60% error rate
"circuit_state": "closed",
"consecutive_failures": 3,
"total_failures": 6,
"total_successes": 4,
"last_success_time": None,
"last_error": "timeout occurred",
}
def _unhealthy_summary() -> dict:
return {
"success_rate": 10.0, # 90% error rate
"circuit_state": "open",
"consecutive_failures": 10,
"total_failures": 9,
"total_successes": 1,
"last_success_time": None,
"last_error": "ImportError: missing module",
}
@pytest.fixture
def monitor():
tracker = _make_health_tracker(_healthy_summary())
return PluginHealthMonitor(health_tracker=tracker)
# ---------------------------------------------------------------------------
# get_plugin_health_status
# ---------------------------------------------------------------------------
class TestGetPluginHealthStatus:
def test_healthy_status(self):
tracker = _make_health_tracker(_healthy_summary())
monitor = PluginHealthMonitor(tracker)
status = monitor.get_plugin_health_status("plugin_a")
assert status == HealthStatus.HEALTHY
def test_degraded_status(self):
tracker = _make_health_tracker(_degraded_summary())
monitor = PluginHealthMonitor(tracker, degraded_threshold=0.5, unhealthy_threshold=0.8)
status = monitor.get_plugin_health_status("plugin_b")
assert status == HealthStatus.DEGRADED
def test_unhealthy_status(self):
tracker = _make_health_tracker(_unhealthy_summary())
monitor = PluginHealthMonitor(tracker, unhealthy_threshold=0.8)
status = monitor.get_plugin_health_status("plugin_c")
assert status == HealthStatus.UNHEALTHY
def test_open_circuit_breaker_is_unhealthy(self):
summary = _healthy_summary()
summary["circuit_state"] = "open"
tracker = _make_health_tracker(summary)
monitor = PluginHealthMonitor(tracker)
status = monitor.get_plugin_health_status("plugin_d")
assert status == HealthStatus.UNHEALTHY
def test_unknown_when_no_tracker(self):
monitor = PluginHealthMonitor(health_tracker=None)
status = monitor.get_plugin_health_status("plugin_e")
assert status == HealthStatus.UNKNOWN
def test_unknown_when_no_summary(self):
tracker = _make_health_tracker(None)
monitor = PluginHealthMonitor(tracker)
status = monitor.get_plugin_health_status("plugin_f")
assert status == HealthStatus.UNKNOWN
# ---------------------------------------------------------------------------
# get_plugin_health_metrics
# ---------------------------------------------------------------------------
class TestGetPluginHealthMetrics:
def test_healthy_metrics(self):
tracker = _make_health_tracker(_healthy_summary())
monitor = PluginHealthMonitor(tracker)
metrics = monitor.get_plugin_health_metrics("plugin_a")
assert isinstance(metrics, HealthMetrics)
assert metrics.status == HealthStatus.HEALTHY
assert metrics.success_rate == pytest.approx(1.0)
assert metrics.error_rate == pytest.approx(0.0)
def test_degraded_metrics(self):
tracker = _make_health_tracker(_degraded_summary())
monitor = PluginHealthMonitor(tracker, degraded_threshold=0.5, unhealthy_threshold=0.8)
metrics = monitor.get_plugin_health_metrics("plugin_b")
assert metrics.status == HealthStatus.DEGRADED
assert metrics.consecutive_failures == 3
def test_unhealthy_metrics(self):
tracker = _make_health_tracker(_unhealthy_summary())
monitor = PluginHealthMonitor(tracker, unhealthy_threshold=0.8)
metrics = monitor.get_plugin_health_metrics("plugin_c")
assert metrics.status == HealthStatus.UNHEALTHY
assert metrics.circuit_breaker_state == "open"
assert metrics.last_error is not None
def test_metrics_without_tracker(self):
monitor = PluginHealthMonitor(health_tracker=None)
metrics = monitor.get_plugin_health_metrics("plugin_d")
assert metrics.status == HealthStatus.UNKNOWN
assert metrics.plugin_id == "plugin_d"
def test_metrics_without_summary(self):
tracker = _make_health_tracker(None)
monitor = PluginHealthMonitor(tracker)
metrics = monitor.get_plugin_health_metrics("plugin_e")
assert metrics.status == HealthStatus.UNKNOWN
def test_last_successful_update_parsed(self):
summary = _healthy_summary()
summary["last_success_time"] = "2024-06-01T12:00:00"
tracker = _make_health_tracker(summary)
monitor = PluginHealthMonitor(tracker)
metrics = monitor.get_plugin_health_metrics("plugin_a")
assert metrics.last_successful_update is not None
assert isinstance(metrics.last_successful_update, datetime)
def test_invalid_last_success_time_handled(self):
summary = _healthy_summary()
summary["last_success_time"] = "not-a-date"
tracker = _make_health_tracker(summary)
monitor = PluginHealthMonitor(tracker)
# Should not raise
metrics = monitor.get_plugin_health_metrics("plugin_a")
assert metrics.last_successful_update is None
def test_total_successes_failures(self):
tracker = _make_health_tracker(_degraded_summary())
monitor = PluginHealthMonitor(tracker, degraded_threshold=0.5, unhealthy_threshold=0.8)
metrics = monitor.get_plugin_health_metrics("plugin_b")
assert metrics.total_failures == 6
assert metrics.total_successes == 4
# ---------------------------------------------------------------------------
# get_all_plugin_health
# ---------------------------------------------------------------------------
class TestGetAllPluginHealth:
def test_returns_empty_without_tracker(self):
monitor = PluginHealthMonitor(health_tracker=None)
result = monitor.get_all_plugin_health()
assert result == {}
def test_returns_metrics_for_each_plugin(self):
all_summaries = {
"plugin_a": _healthy_summary(),
"plugin_b": _degraded_summary(),
}
tracker = MagicMock()
tracker.get_all_health_summaries.return_value = all_summaries
tracker.get_health_summary.side_effect = lambda pid: all_summaries.get(pid)
monitor = PluginHealthMonitor(tracker, degraded_threshold=0.5, unhealthy_threshold=0.8)
result = monitor.get_all_plugin_health()
assert "plugin_a" in result
assert "plugin_b" in result
assert isinstance(result["plugin_a"], HealthMetrics)
def test_returns_empty_when_no_summaries(self):
tracker = _make_health_tracker(all_summaries={})
monitor = PluginHealthMonitor(tracker)
result = monitor.get_all_plugin_health()
assert result == {}
# ---------------------------------------------------------------------------
# _get_recovery_suggestions
# ---------------------------------------------------------------------------
class TestGetRecoverySuggestions:
def test_healthy_plugin_suggestion(self):
tracker = _make_health_tracker(_healthy_summary())
monitor = PluginHealthMonitor(tracker)
suggestions = monitor._get_recovery_suggestions("p", _healthy_summary(), HealthStatus.HEALTHY)
assert any("healthy" in s.lower() for s in suggestions)
def test_unhealthy_suggestions(self):
tracker = _make_health_tracker(_unhealthy_summary())
monitor = PluginHealthMonitor(tracker, unhealthy_threshold=0.8)
suggestions = monitor._get_recovery_suggestions("p", _unhealthy_summary(), HealthStatus.UNHEALTHY)
assert len(suggestions) > 0
assert any("unhealthy" in s.lower() for s in suggestions)
def test_open_circuit_breaker_suggestion(self):
summary = _unhealthy_summary()
summary["circuit_state"] = "open"
tracker = _make_health_tracker(summary)
monitor = PluginHealthMonitor(tracker, unhealthy_threshold=0.8)
suggestions = monitor._get_recovery_suggestions("p", summary, HealthStatus.UNHEALTHY)
assert any("circuit" in s.lower() for s in suggestions)
def test_timeout_error_suggestion(self):
summary = _degraded_summary()
summary["last_error"] = "connection timeout occurred"
tracker = _make_health_tracker(summary)
monitor = PluginHealthMonitor(tracker, degraded_threshold=0.5, unhealthy_threshold=0.8)
suggestions = monitor._get_recovery_suggestions("p", summary, HealthStatus.DEGRADED)
assert any("timeout" in s.lower() for s in suggestions)
def test_import_error_suggestion(self):
summary = _unhealthy_summary()
summary["last_error"] = "ImportError: missing module"
tracker = _make_health_tracker(summary)
monitor = PluginHealthMonitor(tracker, unhealthy_threshold=0.8)
suggestions = monitor._get_recovery_suggestions("p", summary, HealthStatus.UNHEALTHY)
assert any("dependencies" in s.lower() or "import" in s.lower() or "missing" in s.lower()
for s in suggestions)
def test_permission_error_suggestion(self):
summary = _unhealthy_summary()
summary["last_error"] = "permission denied to access resource"
tracker = _make_health_tracker(summary)
monitor = PluginHealthMonitor(tracker, unhealthy_threshold=0.8)
suggestions = monitor._get_recovery_suggestions("p", summary, HealthStatus.UNHEALTHY)
assert any("permission" in s.lower() for s in suggestions)
def test_degraded_suggestions_include_error_rate(self):
tracker = _make_health_tracker(_degraded_summary())
monitor = PluginHealthMonitor(tracker, degraded_threshold=0.5, unhealthy_threshold=0.8)
suggestions = monitor._get_recovery_suggestions("p", _degraded_summary(), HealthStatus.DEGRADED)
assert any("%" in s for s in suggestions)
# ---------------------------------------------------------------------------
# start / stop monitoring
# ---------------------------------------------------------------------------
class TestMonitorLifecycle:
def test_start_monitoring(self, monitor):
monitor.start_monitoring()
assert monitor._monitor_thread is not None
assert monitor._monitor_thread.is_alive()
monitor.stop_monitoring()
def test_stop_monitoring(self, monitor):
monitor.start_monitoring()
monitor.stop_monitoring()
# Thread should no longer be alive
assert not monitor._monitor_thread.is_alive()
def test_double_start_no_duplicate_threads(self, monitor):
monitor.start_monitoring()
thread1 = monitor._monitor_thread
monitor.start_monitoring() # should be idempotent
assert monitor._monitor_thread is thread1
monitor.stop_monitoring()
def test_register_health_check(self, monitor):
callback = MagicMock()
monitor.register_health_check(callback)
assert callback in monitor._health_check_callbacks