Allow reconfiguration of integration sensor (#116740)

* Allow reconfiguration of integration sensor

* Adjust allowed options to not change unit

tests/components/integration/test_config_flow.py

@@ -8,6 +8,7 @@ from homeassistant import config_entries
 from homeassistant.components.integration.const import DOMAIN
 from homeassistant.core import HomeAssistant
 from homeassistant.data_entry_flow import FlowResultType
+from homeassistant.helpers import selector
 
 from tests.common import MockConfigEntry
 
@@ -95,21 +96,34 @@ async def test_options(hass: HomeAssistant, platform) -> None:
     assert await hass.config_entries.async_setup(config_entry.entry_id)
     await hass.async_block_till_done()
 
+    hass.states.async_set("sensor.input", 10, {"unit_of_measurement": "dog"})
+    hass.states.async_set("sensor.valid", 10, {"unit_of_measurement": "dog"})
+    hass.states.async_set("sensor.invalid", 10, {"unit_of_measurement": "cat"})
+
     result = await hass.config_entries.options.async_init(config_entry.entry_id)
     assert result["type"] is FlowResultType.FORM
     assert result["step_id"] == "init"
     schema = result["data_schema"].schema
     assert get_suggested(schema, "round") == 1.0
 
+    source = schema["source"]
+    assert isinstance(source, selector.EntitySelector)
+    assert source.config["include_entities"] == [
+        "sensor.input",
+        "sensor.valid",
+    ]
+
     result = await hass.config_entries.options.async_configure(
         result["flow_id"],
         user_input={
+            "method": "right",
             "round": 2.0,
+            "source": "sensor.input",
         },
     )
     assert result["type"] is FlowResultType.CREATE_ENTRY
     assert result["data"] == {
-        "method": "left",
+        "method": "right",
         "name": "My integration",
         "round": 2.0,
         "source": "sensor.input",
@@ -118,7 +132,7 @@ async def test_options(hass: HomeAssistant, platform) -> None:
     }
     assert config_entry.data == {}
     assert config_entry.options == {
-        "method": "left",
+        "method": "right",
         "name": "My integration",
         "round": 2.0,
         "source": "sensor.input",
@@ -131,7 +145,7 @@ async def test_options(hass: HomeAssistant, platform) -> None:
     await hass.async_block_till_done()
 
     # Check the entity was updated, no new entity was created
-    assert len(hass.states.async_all()) == 1
+    assert len(hass.states.async_all()) == 4
 
     # Check the state of the entity has changed as expected
     hass.states.async_set("sensor.input", 10, {"unit_of_measurement": "dog"})