Hanging flutter_tester processes

Describe the bug
The flutter_tester processes aren't terminated.

To Reproduce
Steps to reproduce the behavior:

Run multiple tests with breakpoints
Exit in the middle of the execution

Expected behavior
The flutter_tester processes are terminated

Screenshots

Dart Code extension: 3.90.0
Flutter extension: 3.90.0 (activated)

App: Code - OSS
App Host: desktop
Version: linux 1.90.0

Workspace type: Flutter (LSP)

Dart (3.3.1): /home/alexandre/fvm/versions/3.19.3/bin/cache/dart-sdk
Flutter (3.19.3): /home/alexandre/fvm/versions/3.19.3 (Linux (linux-x64/linux))

I can reproduce this in a newly-created Flutter app. Clicking Stop on the debug toolbar sends terminate, which we use to shutdown and we get an Exited event, then send terminated. We then get disconnect but it appears the process is already gone by then.

[11:47:26 AM] [DAP] [Info] ==> {"command":"terminate","arguments":{"restart":false},"type":"request","seq":16}
[11:47:26 AM] [DAP] [Info] <== {"seq":2136,"type":"event","body":{"output":"\nExited (-1).\n"},"event":"output"}
[11:47:26 AM] [DAP] [Info] <== {"seq":2137,"type":"event","body":{},"event":"terminated"}
[11:47:26 AM] [DAP] [Info] <== {"seq":2138,"type":"response","command":"terminate","request_seq":16,"success":true}
[11:47:26 AM] [DAP] [Info] ==> {"command":"disconnect","arguments":{"restart":false},"type":"request","seq":17}
[11:47:26 AM] [DAP] [Info] <== {"seq":2139,"type":"response","command":"disconnect","request_seq":17,"success":true}

It doesn't require breakpoints, just a long-running test also repros:

import 'package:flutter_test/flutter_test.dart';

void main() {
  testWidgets('Counter increments smoke test', (WidgetTester tester) async {
    await Future.delayed(const Duration(hours: 1));
  });
}

I can reproduce this from the terminal, seems unrelated to VS Code / DAP.

Create a test with the code above
Run in a terminal with flutter test
Press Ctrl+C to terminate
Check running processes

This seems to be a flutter test issue. I've opened flutter/flutter#151230 with steps to reproduce without VS Code or the debug adapter for investigation. (Edit: That was closed as a dupe of flutter/flutter#144222)

flutter/flutter#151230 / flutter/flutter#144222 has been resolved in Flutter and I can no longer reproduce orphaned flutter_tester processes (although I do see a slightly different issue - see flutter/flutter#144008 (comment)).

Closing this on the assumption that this specific issue is resolved (on Flutter master), but please shout if you can still reproduce (and provide steps) on a version that includes flutter/flutter#159115.

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Hanging flutter_tester processes #5165

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Hanging flutter_tester processes #5165

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DanTup commented on Jul 3, 2024

DanTup commented on Jul 3, 2024

DanTup commented on Nov 26, 2024

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