import unittest

from fgai.metrics import prometheus_metrics


class MetricsTests(unittest.TestCase):
    def test_renders_low_cardinality_metrics(self):
        output = prometheus_metrics({"summary": {"total": 10}, "anomaly_summary": {"high": 2}, "baseline": {"sources_ready": 3}, "capabilities": {"graylog_mcp": {"status": "connected", "events_fetched": 9}}})
        self.assertIn('fgai_events_total{kind="total"} 10', output)
        self.assertIn("fgai_graylog_mcp_connected 1", output)
