integrationDriver function Null safety

Future<void> integrationDriver(
  1. {Duration timeout = const Duration(minutes: 1),
  2. ResponseDataCallback? responseDataCallback = writeResponseData}

Adaptor to run an integration test using flutter drive.

timeout controls the longest time waited before the test ends. It is not necessarily the execution time for the test app: the test may finish sooner than the timeout.

responseDataCallback is the handler for processing The default value is writeResponseData.

To an integration test <test_name>.dart using flutter drive, put a file named <test_name>_test.dart in the app's test_driver directory:

import 'dart:async';

import 'package:integration_test/integration_test_driver.dart';

Future<void> main() async => integrationDriver();


Future<void> integrationDriver({
  Duration timeout = const Duration(minutes: 1),
  ResponseDataCallback? responseDataCallback = writeResponseData,
}) async {
  final FlutterDriver driver = await FlutterDriver.connect();
  final String jsonResult = await driver.requestData(null, timeout: timeout);
  final Response response = Response.fromJson(jsonResult);
  await driver.close();

  if (response.allTestsPassed) {
    print('All tests passed.');
    if (responseDataCallback != null) {
      await responseDataCallback(;
  } else {
    print('Failure Details:\n${response.formattedFailureDetails}');