Add tray status model

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

tests/test_tray_state.py

@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+"""Tray status model: maps `status --json` to a TrayState."""
+import unittest
+
+from enodia_sentinel.tray.state import TrayState, parse_status
+
+
+class TestParseStatus(unittest.TestCase):
+    def test_none_is_unknown_grey(self):
+        s = parse_status(None)
+        self.assertFalse(s.running)
+        self.assertEqual(s.color, "grey")
+        self.assertEqual(s.summary, "Unknown")
+
+    def test_stopped_is_grey(self):
+        s = parse_status({"running": False, "total_alerts": 3,
+                          "counts": {"high": 1}})
+        self.assertFalse(s.running)
+        self.assertEqual(s.color, "grey")
+        self.assertEqual(s.summary, "Stopped")
+
+    def test_running_clean_is_green(self):
+        s = parse_status({"running": True, "total_alerts": 0, "counts": {}})
+        self.assertEqual(s.color, "green")
+        self.assertIn("no alerts", s.summary)
+
+    def test_running_with_medium_only_is_green(self):
+        s = parse_status({"running": True, "total_alerts": 2,
+                          "counts": {"MEDIUM": 2}})
+        self.assertEqual(s.color, "green")
+        self.assertIn("2 alerts", s.summary)
+
+    def test_running_with_high_is_amber(self):
+        s = parse_status({"running": True, "total_alerts": 4,
+                          "counts": {"HIGH": 1, "CRITICAL": 1, "MEDIUM": 2}})
+        self.assertEqual(s.high_alerts, 2)
+        self.assertEqual(s.color, "amber")
+        self.assertIn("high/critical", s.summary)
+
+    def test_tooltip_includes_summary(self):
+        s = parse_status({"running": True, "total_alerts": 0, "counts": {}})
+        self.assertIn(s.summary, s.tooltip)
+        self.assertIn("Enodia Sentinel", s.tooltip)