Fix optimistic covers (#149962)

homeassistant/components/template/cover.py

@@ -216,6 +216,7 @@ class AbstractTemplateCover(AbstractTemplateEntity, CoverEntity):
 
     _entity_id_format = ENTITY_ID_FORMAT
     _optimistic_entity = True
+    _extra_optimistic_options = (CONF_POSITION,)
 
     # The super init is not called because TemplateEntity and TriggerEntity will call AbstractTemplateEntity.__init__.
     # This ensures that the __init__ on AbstractTemplateEntity is not called twice.

homeassistant/components/template/entity.py

@@ -20,6 +20,7 @@ class AbstractTemplateEntity(Entity):
 
     _entity_id_format: str
     _optimistic_entity: bool = False
+    _extra_optimistic_options: tuple[str, ...] | None = None
     _template: Template | None = None
 
     def __init__(
@@ -35,9 +36,14 @@ class AbstractTemplateEntity(Entity):
         if self._optimistic_entity:
             self._template = config.get(CONF_STATE)
 
-            self._attr_assumed_state = self._template is None or config.get(
+            optimistic = self._template is None
-                CONF_OPTIMISTIC, False
+            if self._extra_optimistic_options:
-            )
+                optimistic = optimistic and all(
+                    config.get(option) is None
+                    for option in self._extra_optimistic_options
+                )
+
+            self._attr_assumed_state = optimistic or config.get(CONF_OPTIMISTIC, False)
 
         if (object_id := config.get(CONF_OBJECT_ID)) is not None:
             self.entity_id = async_generate_entity_id(

tests/components/template/test_cover.py

@@ -239,6 +239,7 @@ async def setup_position_cover(
             {
                 TEST_OBJECT_ID: {
                     **COVER_ACTIONS,
+                    "set_cover_position": SET_COVER_POSITION,
                     "position_template": position_template,
                 }
             },
@@ -249,6 +250,7 @@ async def setup_position_cover(
             count,
             {
                 **NAMED_COVER_ACTIONS,
+                "set_cover_position": SET_COVER_POSITION,
                 "position": position_template,
             },
         )
@@ -258,6 +260,7 @@ async def setup_position_cover(
             count,
             {
                 **NAMED_COVER_ACTIONS,
+                "set_cover_position": SET_COVER_POSITION,
                 "position": position_template,
             },
         )
@@ -565,6 +568,7 @@ async def test_template_position(
     position: int | None,
     expected: str,
     caplog: pytest.LogCaptureFixture,
+    calls: list[ServiceCall],
 ) -> None:
     """Test the position_template attribute."""
     hass.states.async_set(TEST_STATE_ENTITY_ID, CoverState.OPEN)
@@ -580,6 +584,19 @@ async def test_template_position(
     assert state.state == expected
     assert "ValueError" not in caplog.text
 
+    # Test to make sure optimistic is not set with only a position template.
+    await hass.services.async_call(
+        COVER_DOMAIN,
+        SERVICE_SET_COVER_POSITION,
+        {ATTR_ENTITY_ID: TEST_ENTITY_ID, "position": 10},
+        blocking=True,
+    )
+    await hass.async_block_till_done()
+
+    state = hass.states.get(TEST_ENTITY_ID)
+    assert state.attributes.get("current_position") == position
+    assert state.state == expected
+
 
 @pytest.mark.parametrize("count", [1])
 @pytest.mark.parametrize(