100% Coverage

tests/unit/events/test_bus.py

@@ -0,0 +1,40 @@
+"""Coverage for roboco.events.bus thin wrapper functions."""
+
+from __future__ import annotations
+
+from unittest.mock import AsyncMock, MagicMock, patch
+
+import pytest
+from roboco.events.bus import EventBus, get_event_bus, init_event_bus
+from roboco.events.stream_bus import StreamEventBus
+
+
+def test_get_event_bus_delegates() -> None:
+    """get_event_bus() returns the underlying stream event bus singleton."""
+    fake_bus = MagicMock()
+    with patch(
+        "roboco.events.bus.get_stream_event_bus", return_value=fake_bus
+    ) as mock_get:
+        result = get_event_bus()
+    mock_get.assert_called_once()
+    assert result is fake_bus
+
+
+@pytest.mark.asyncio
+async def test_init_event_bus_delegates() -> None:
+    """init_event_bus() forwards args to init_stream_event_bus (line 53)."""
+    fake_bus = MagicMock()
+    with patch(
+        "roboco.events.bus.init_stream_event_bus",
+        new_callable=AsyncMock,
+        return_value=fake_bus,
+    ) as mock_init:
+        result = await init_event_bus(consumer_name="custom", recover_pending=False)
+    mock_init.assert_awaited_once_with(consumer_name="custom", recover_pending=False)
+    assert result is fake_bus
+
+
+def test_event_bus_alias_is_stream_event_bus() -> None:
+    """EventBus is an alias for StreamEventBus."""
+
+    assert EventBus is StreamEventBus