Google Assistant diagnostics and synchronization (#73574)

* Add config flow import for local google assistant
* Add diagnostic with sync response
* Add button for device sync

tests/components/google_assistant/test_init.py

@@ -2,11 +2,47 @@
 from http import HTTPStatus
 
 from homeassistant.components import google_assistant as ga
-from homeassistant.core import Context
+from homeassistant.core import Context, HomeAssistant
 from homeassistant.setup import async_setup_component
 
 from .test_http import DUMMY_CONFIG
 
+from tests.common import MockConfigEntry
+
+
+async def test_import(hass: HomeAssistant):
+    """Test import."""
+
+    await async_setup_component(
+        hass,
+        ga.DOMAIN,
+        {"google_assistant": DUMMY_CONFIG},
+    )
+
+    entries = hass.config_entries.async_entries("google_assistant")
+    assert len(entries) == 1
+    assert entries[0].data[ga.const.CONF_PROJECT_ID] == "1234"
+
+
+async def test_import_changed(hass: HomeAssistant):
+    """Test import with changed project id."""
+
+    old_entry = MockConfigEntry(
+        domain=ga.DOMAIN, data={ga.const.CONF_PROJECT_ID: "4321"}, source="import"
+    )
+    old_entry.add_to_hass(hass)
+
+    await async_setup_component(
+        hass,
+        ga.DOMAIN,
+        {"google_assistant": DUMMY_CONFIG},
+    )
+    await hass.async_block_till_done()
+
+    entries = hass.config_entries.async_entries("google_assistant")
+    assert len(entries) == 1
+    assert entries[0].data[ga.const.CONF_PROJECT_ID] == "1234"
+
 
 async def test_request_sync_service(aioclient_mock, hass):
     """Test that it posts to the request_sync url."""