Add reconfigure flow in Google Assistant SDK (#153802)

tests/components/google_assistant_sdk/test_config_flow.py

@@ -157,6 +157,62 @@ async def test_reauth(
     assert config_entry.data["token"].get("refresh_token") == "mock-refresh-token"
 
 
+@pytest.mark.usefixtures("current_request_with_host")
+async def test_reconfigure(
+    hass: HomeAssistant,
+    hass_client_no_auth: ClientSessionGenerator,
+    aioclient_mock: AiohttpClientMocker,
+    setup_credentials: None,
+    config_entry: MockConfigEntry,
+) -> None:
+    """Test the reconfiguration flow updates the existing config entry."""
+    config_entry.add_to_hass(hass)
+
+    result = await config_entry.start_reconfigure_flow(hass)
+
+    assert result["type"] is FlowResultType.EXTERNAL_STEP
+
+    state = config_entry_oauth2_flow._encode_jwt(
+        hass,
+        {
+            "flow_id": result["flow_id"],
+            "redirect_uri": "https://example.com/auth/external/callback",
+        },
+    )
+    assert result["url"] == (
+        f"{GOOGLE_AUTH_URI}?response_type=code&client_id={CLIENT_ID}"
+        "&redirect_uri=https://example.com/auth/external/callback"
+        f"&state={state}&scope=https://www.googleapis.com/auth/assistant-sdk-prototype"
+        "&access_type=offline&prompt=consent"
+    )
+    client = await hass_client_no_auth()
+    resp = await client.get(f"/auth/external/callback?code=abcd&state={state}")
+    assert resp.status == 200
+    assert resp.headers["content-type"] == "text/html; charset=utf-8"
+
+    aioclient_mock.post(
+        GOOGLE_TOKEN_URI,
+        json={
+            "refresh_token": "mock-refresh-token",
+            "access_token": "updated-access-token",
+            "type": "Bearer",
+            "expires_in": 60,
+        },
+    )
+
+    result = await hass.config_entries.flow.async_configure(result["flow_id"])
+
+    assert result.get("type") is FlowResultType.ABORT
+    assert result.get("reason") == "reconfigure_successful"
+
+    assert len(hass.config_entries.async_entries(DOMAIN)) == 1
+    assert config_entry.unique_id is None
+    assert "token" in config_entry.data
+    # Verify access token is refreshed
+    assert config_entry.data["token"].get("access_token") == "updated-access-token"
+    assert config_entry.data["token"].get("refresh_token") == "mock-refresh-token"
+
+
 @pytest.mark.usefixtures("current_request_with_host")
 async def test_single_instance_allowed(
     hass: HomeAssistant,