Add input_text reload service. (#29644)

* Add input_text reload service.

* Add test.

tests/components/input_text/test_init.py

@@ -1,10 +1,14 @@
 """The tests for the Input text component."""
 # pylint: disable=protected-access
 import asyncio
+from unittest.mock import patch
+
+import pytest
 
 from homeassistant.components.input_text import ATTR_VALUE, DOMAIN, SERVICE_SET_VALUE
-from homeassistant.const import ATTR_ENTITY_ID
+from homeassistant.const import ATTR_ENTITY_ID, SERVICE_RELOAD
 from homeassistant.core import Context, CoreState, State
+from homeassistant.exceptions import Unauthorized
 from homeassistant.loader import bind_hass
 from homeassistant.setup import async_setup_component
 
@@ -195,3 +199,64 @@ async def test_config_none(hass):
     state = hass.states.get("input_text.b1")
     assert state
     assert str(state.state) == "unknown"
+
+
+async def test_reload(hass, hass_admin_user, hass_read_only_user):
+    """Test reload service."""
+    count_start = len(hass.states.async_entity_ids())
+
+    assert await async_setup_component(
+        hass,
+        DOMAIN,
+        {DOMAIN: {"test_1": {"initial": "test 1"}, "test_2": {"initial": "test 2"}}},
+    )
+
+    assert count_start + 2 == len(hass.states.async_entity_ids())
+
+    state_1 = hass.states.get("input_text.test_1")
+    state_2 = hass.states.get("input_text.test_2")
+    state_3 = hass.states.get("input_text.test_3")
+
+    assert state_1 is not None
+    assert state_2 is not None
+    assert state_3 is None
+    assert "test 1" == state_1.state
+    assert "test 2" == state_2.state
+
+    with patch(
+        "homeassistant.config.load_yaml_config_file",
+        autospec=True,
+        return_value={
+            DOMAIN: {
+                "test_2": {"initial": "test reloaded"},
+                "test_3": {"initial": "test 3"},
+            }
+        },
+    ):
+        with patch("homeassistant.config.find_config_file", return_value=""):
+            with pytest.raises(Unauthorized):
+                await hass.services.async_call(
+                    DOMAIN,
+                    SERVICE_RELOAD,
+                    blocking=True,
+                    context=Context(user_id=hass_read_only_user.id),
+                )
+            await hass.services.async_call(
+                DOMAIN,
+                SERVICE_RELOAD,
+                blocking=True,
+                context=Context(user_id=hass_admin_user.id),
+            )
+            await hass.async_block_till_done()
+
+    assert count_start + 2 == len(hass.states.async_entity_ids())
+
+    state_1 = hass.states.get("input_text.test_1")
+    state_2 = hass.states.get("input_text.test_2")
+    state_3 = hass.states.get("input_text.test_3")
+
+    assert state_1 is None
+    assert state_2 is not None
+    assert state_3 is not None
+    assert "test reloaded" == state_2.state
+    assert "test 3" == state_3.state