Remove deprecated template support in persistent notifications (#69021)

homeassistant/components/persistent_notification/__init__.py

@@ -3,17 +3,15 @@ from __future__ import annotations
 
 from collections.abc import Mapping
 import logging
-from typing import Any, cast
+from typing import Any
 
 import voluptuous as vol
 
 from homeassistant.components import websocket_api
 from homeassistant.const import ATTR_FRIENDLY_NAME
 from homeassistant.core import Context, HomeAssistant, ServiceCall, callback
-from homeassistant.exceptions import TemplateError
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.entity import async_generate_entity_id
-from homeassistant.helpers.template import Template, is_template_string
 from homeassistant.helpers.typing import ConfigType
 from homeassistant.loader import bind_hass
 from homeassistant.util import slugify
@@ -82,36 +80,11 @@ def async_create(
         )
         notification_id = entity_id.split(".")[1]
 
-    warn = False
+    attr: dict[str, str] = {ATTR_MESSAGE: message}
-
-    attr: dict[str, str] = {}
     if title is not None:
-        if is_template_string(title):
-            warn = True
-            try:
-                title = cast(
-                    str, Template(title, hass).async_render(parse_result=False)  # type: ignore[no-untyped-call]
-                )
-            except TemplateError as ex:
-                _LOGGER.error("Error rendering title %s: %s", title, ex)
-
         attr[ATTR_TITLE] = title
         attr[ATTR_FRIENDLY_NAME] = title
 
-    if is_template_string(message):
-        warn = True
-        try:
-            message = Template(message, hass).async_render(parse_result=False)  # type: ignore[no-untyped-call]
-        except TemplateError as ex:
-            _LOGGER.error("Error rendering message %s: %s", message, ex)
-
-    attr[ATTR_MESSAGE] = message
-
-    if warn:
-        _LOGGER.warning(
-            "Passing a template string to persistent_notification.async_create function is deprecated"
-        )
-
     hass.states.async_set(entity_id, STATE, attr, context=context)
 
     # Store notification and fire event

tests/components/persistent_notification/test_init.py

@@ -20,7 +20,7 @@ async def test_create(hass):
     assert len(hass.states.async_entity_ids(pn.DOMAIN)) == 0
     assert len(notifications) == 0
 
-    pn.async_create(hass, "Hello World {{ 1 + 1 }}", title="{{ 1 + 1 }} beers")
+    pn.async_create(hass, "Hello World 2", title="2 beers")
 
     entity_ids = hass.states.async_entity_ids(pn.DOMAIN)
     assert len(entity_ids) == 1
@@ -68,27 +68,6 @@ async def test_create_notification_id(hass):
     assert notification["message"] == "test 2"
 
 
-async def test_create_template_error(hass):
-    """Ensure we output templates if contain error."""
-    notifications = hass.data[pn.DOMAIN]
-    assert len(hass.states.async_entity_ids(pn.DOMAIN)) == 0
-    assert len(notifications) == 0
-
-    pn.async_create(hass, "{{ message + 1 }}", "{{ title + 1 }}")
-
-    entity_ids = hass.states.async_entity_ids(pn.DOMAIN)
-    assert len(entity_ids) == 1
-    assert len(notifications) == 1
-
-    state = hass.states.get(entity_ids[0])
-    assert state.attributes.get("message") == "{{ message + 1 }}"
-    assert state.attributes.get("title") == "{{ title + 1 }}"
-
-    notification = notifications.get(entity_ids[0])
-    assert notification["message"] == "{{ message + 1 }}"
-    assert notification["title"] == "{{ title + 1 }}"
-
-
 async def test_dismiss_notification(hass):
     """Ensure removal of specific notification."""
     notifications = hass.data[pn.DOMAIN]