Flutter drive: Cannot set timeout on GetHealth command

[mmcc007]

I am using the default counter app to set-up integration testing on TravisCI. I am running the android emulator on linux and the ios simulator on mac. The default integration test passes on mac/ios/simulator but fails on linux/android/emulator.

The android emulator is getting a timeout on the driver's GetHealth command when running on Travis (no hardware acceleration, graphics in software). The weird thing is tests from other projects are getting past this health check and completing successfully (when timeouts added where permitted). But when I run the default counter app integration test it times out on the GetHealth command.

This is the test:

void main() {
  group('end-to-end test', () {
    FlutterDriver driver;
    final timeout = Duration(seconds: 20);

    setUpAll(() async {
      // Connect to a running Flutter application instance.
      driver = await FlutterDriver.connect(
        isolateReadyTimeout: timeout,
        printCommunication: true,
      );
    });

    tearDownAll(() async {
      if (driver != null) driver.close();
    });

    test('tap on the floating action button; verify counter', () async {
      // Finds the floating action button (fab) to tap on
      SerializableFinder fab = find.byTooltip('Increment');

      // Wait for the floating action button to appear
      await driver.waitFor(fab, timeout: timeout);

      // Tap on the fab
      await driver.tap(fab, timeout: timeout);

      // Wait for text to change to the desired value
      await driver.waitFor(find.text('1'), timeout: timeout);
    });
  });
}

and the resulting timeout:

[   +2 ms]   DriverError: Failed to fulfill GetHealth: Flutter application not responding
[        ]   Original error: TimeoutException after 0:00:07.500000: Future not completed

Here is the same line in the build on travis.

I tried increasing timeouts wherever I could, but the GetHealth time out is unaffected.
Is there a way to fix this? I suspect it would pass if I could add a timeout to GetHealth, but there might be another way.

[✓] Flutter (Channel unknown, v0.9.4, on Linux, locale en_US.UTF-8)
    • Flutter version 0.9.4 at /home/travis/build/mmcc007/flutter_app/flutter
    • Framework revision f37c235c32 (5 weeks ago), 2018-09-25 17:45:40 -0400
    • Engine revision 74625aed32
    • Dart version 2.1.0-dev.5.0.flutter-a2eb050044
[✓] Android toolchain - develop for Android devices (Android SDK 25.0.2)
    • Android SDK at /opt/android-sdk-linux
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-25, build-tools 25.0.2
    • ANDROID_HOME = /opt/android-sdk-linux
    • Java binary at: /usr/lib/jvm/java-8-oracle/bin/java
    • Java version Java(TM) SE Runtime Environment (build 1.8.0_151-b12)
    • All Android licenses accepted.
[✗] Android Studio (not installed)
    • Android Studio not found; download from https://developer.android.com/studio/index.html
      (or visit https://flutter.io/setup/#android-setup for detailed instructions).
[✓] Connected devices (1 available)
    • sdk phone armv7 • emulator-5554 • android-arm • Android 5.1.1 (API 22) (emulator)
! Doctor found issues in 1 category.

Here is the complete source code:
https://github.com/mmcc007/flutter_app/tree/f2738cfd44802e51ab2d47c0824b096ab57617f8
and the build on travis showing it working on ios but failing on android:
https://travis-ci.org/mmcc007/flutter_app/builds/449653234

[mmcc007]

The global timeout multiplier proposed by @yjbanov in #14732 would be a good solution. This would allow developers to run their integration tests on the cloud in linux (and Mac/Windows).

That would then make it possible to automate deployment to both stores from the cloud using something like Fastlane. That would enable a very cost effective CICD solution for Flutter.

I was planning on setting up a demo of a complete CICD solution for Flutter on Travis (and maybe then on other CI vendors). Being able to manage all driver timeouts would make this possible.

[yjbanov]

PR is out for review #24066

[mmcc007]

PR #24066 fixed the timeout issue on GetHealth. Here is the build using master on travis showing the GetHealth command succeeding. The integration test should now passing on both ios and android in cloud 🎉

[mmcc007]

I'm now getting timeouts on ios (which I haven't seen before) even though it is succeeding on android. It may be an interim issue with master, or could be related to this fix. Not clear.
src

[mmcc007]

Everything is working fine now on beta v0.11.7
https://travis-ci.org/mmcc007/flutter_app/builds/456715996
Thanks @yjbanov and all involved! 🎉

[github-actions]

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