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flutter test leaks frontend_server.dart.snapshot on exception #34613
Description
Steps to Reproduce
frontend_server.dart.snapshot leaks after flutter test fails with engine exception.
$ cd packages/flutter
$ flutter test
Logs
[ ] test 178: error caught during test; sending to test framework
[ ] test 178: cleaning up...
[ ] test 178: deleting temporary directory
[ +1 ms] test 178: shutting down test harness socket server
00:58 +1175 ~25 -2: loading flutter/packages/flutter/test/cupertino/route_test.dart [E]
Failed to load "flutter/packages/flutter/test/cupertino/route_test.dart":
Too many open files
...
02:56 +1487 ~34 -339: Some tests failed.
thistle flutter$ ps -ef | grep frontend_server
670434 55506 1 0 4:23PM ttys000 3:07.85 flutter/bin/cache/dart-sdk/bin/dart flutter/bin/cache/artifacts/engine/darwin-x64/frontend_server.dart.snapshot --sdk-root flutter/bin/cache/artifacts/engine/common/flutter_patched_sdk/ --incremental --strong --target=flutter --output-dill /var/folders/mv/qlhc4vsj6tqct166rw3zwmth00mfq2/T/flutter_test_compiler.pbdWfe/output.dill --packages flutter/packages/flutter/.packages --initialize-from-dill flutter/packages/flutter/build/testfile.dill
670434 56385 91983 0 4:26PM ttys000 0:00.00 grep frontend_server
$ flutter doctor -v
[✓] Flutter (Channel master, v1.7.5-pre.16, on Mac OS X 10.14.5 18F203, locale en-US)
• Flutter version 1.7.5-pre.16 at /Users/magder/Projects/flutter
• Framework revision ac2f85bb63 (8 hours ago), 2019-06-17 11:31:58 -0400
• Engine revision 308c11301a
• Dart version 2.4.0
[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
• Android SDK at /Users/magder/Library/Android/sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-28, build-tools 28.0.3
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1343-b01)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 10.2.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 10.2.1, Build version 10E1001
• CocoaPods version 1.7.1
[✓] iOS tools - develop for iOS devices
• ios-deploy 1.9.4
[✓] Android Studio (version 3.4)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin version 36.1.1
• Dart plugin version 183.6270
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1343-b01)
[✓] VS Code (version 1.35.0)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.1.0
[✓] Connected device (1 available)
• macOS • macOS • darwin-x64 • Mac OS X 10.14.5 18F203
• No issues found!
Activity
jmagman commentedon Jun 17, 2019
Discovered this while investigating #34612. Note this issue is tracking the leak of flutter_test, NOT the test exception.
I suspect this is #20949 but I want to track separately in case there's more work to be done to handle a SIGINT.
[-]flutter test leaks flutter_tester on exception[/-][+]flutter test leaks frontend_server.dart.snapshot on exception[/+]jmagman commentedon Jun 17, 2019
Ignore the #20949 mention, this is tracking the leak of the frontend_server, not flutter_test.
github-actions commentedon Aug 29, 2021
This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of
flutter doctor -vand a minimal reproduction of the issue.