test: add comprehensive test suite for Phase 2A event bridge

tests/test_discord_formatter.py

@@ -0,0 +1,86 @@
+from __future__ import annotations
+
+import unittest
+
+from tests.conftest import sample_events
+from discord_formatter import format_event, format_summary
+
+
+class DiscordFormatterTests(unittest.TestCase):
+    def setUp(self) -> None:
+        self.events = sample_events()
+
+    def test_format_completed(self) -> None:
+        formatted = format_event(self.events[2])
+
+        self.assertIsNotNone(formatted)
+        self.assertIn("✅", formatted)
+        self.assertIn("TASK-001", formatted)
+
+    def test_format_failed(self) -> None:
+        formatted = format_event(self.events[3])
+
+        self.assertIsNotNone(formatted)
+        self.assertIn("❌", formatted)
+        self.assertIn("Exploded with stack trace", formatted)
+
+    def test_format_escalated(self) -> None:
+        formatted = format_event(self.events[4])
+
+        self.assertIsNotNone(formatted)
+        self.assertIn("🚨", formatted)
+        self.assertIn("Human review required", formatted)
+
+    def test_format_gated(self) -> None:
+        formatted = format_event(self.events[5])
+
+        self.assertIsNotNone(formatted)
+        self.assertIn("🔍", formatted)
+
+    def test_format_started(self) -> None:
+        formatted = format_event(self.events[1])
+
+        self.assertIsNotNone(formatted)
+        self.assertIn("⚙️", formatted)
+        self.assertIn("Worker: codex", formatted)
+
+    def test_format_unknown_type(self) -> None:
+        self.assertIsNone(format_event({"event_type": "task.unknown", "task_id": "TASK-999"}))
+
+    def test_sanitize_control_chars(self) -> None:
+        event = {
+            "event_type": "task.failed",
+            "task_id": "TASK-200",
+            "message": "bad\x00news\x1b[31m!",
+        }
+
+        formatted = format_event(event)
+
+        self.assertIsNotNone(formatted)
+        self.assertNotIn("\x00", formatted)
+        self.assertNotIn("\x1b", formatted)
+        self.assertIn("bad news !", formatted)
+
+    def test_sanitize_mentions(self) -> None:
+        event = {
+            "event_type": "task.escalated",
+            "task_id": "TASK-201",
+            "message": "@everyone investigate",
+        }
+
+        formatted = format_event(event)
+
+        self.assertIsNotNone(formatted)
+        self.assertIn("@\u200beveryone investigate", formatted)
+
+    def test_format_summary(self) -> None:
+        summary = format_summary([self.events[1], self.events[2], self.events[3]])
+
+        self.assertIn("3 events", summary)
+        self.assertIn("task.completed: 1", summary)
+        self.assertIn("task.failed: 1", summary)
+        self.assertIn("task.started: 1", summary)
+
+
+if __name__ == "__main__":
+    unittest.main()