Raise in base implementation of FanEntity.oscillate (home-assistant#43354)

Author: emontnemery

homeassistant/components/fan/__init__.py

@@ -144,6 +144,7 @@ async def async_turn_on(self, speed: Optional[str] = None, **kwargs):
 
     def oscillate(self, oscillating: bool) -> None:
         """Oscillate the fan."""
+        raise NotImplementedError()
 
     async def async_oscillate(self, oscillating: bool):
         """Oscillate the fan."""

tests/components/fan/test_init.py

@@ -20,7 +20,8 @@ def test_fanentity():
     assert fan.supported_features == 0
     assert fan.capability_attributes == {}
     # Test set_speed not required
-    fan.oscillate(True)
+    with pytest.raises(NotImplementedError):
+        fan.oscillate(True)
     with pytest.raises(NotImplementedError):
         fan.set_speed("slow")
     with pytest.raises(NotImplementedError):