Create Hot Restart over websocket test #173852
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This pull request introduces a new integration test for hot restart over a WebSocket connection and refactors the existing hot reload test to use a new shared utility file, websocket_dwds_test_common.dart. The refactoring is well done and improves code reuse. I've identified a potential resource leak in the new common utility file where a Chrome process might not be cleaned up on certain failures. I've also pointed out a few places where documentation is missing for public members, which violates the project's style guide.
packages/flutter_tools/test/integration.shard/test_data/websocket_dwds_test_common.dart
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| final Duration debugUrlTimeout; | ||
| final Duration appStartTimeout; |
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Public fields should have documentation comments. 1
/// The maximum time to wait for the DWDS debug URL to be available.
final Duration debugUrlTimeout;
/// The maximum time to wait for the app to start after Chrome connects.
final Duration appStartTimeout;
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| final StringBuffer stdout; | ||
| final io.Process chromeProcess; | ||
| final StreamSubscription<String> subscription; |
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Public fields should have documentation comments. 1
/// The captured stdout from the Flutter process.
final StringBuffer stdout;
/// The headless Chrome process.
final io.Process chromeProcess;
/// The subscription to the stdout stream of the Flutter process.
final StreamSubscription<String> subscription;
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srujzs
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biggs0125
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| final StreamSubscription<String> subscription = flutter.stdout.listen((String e) { | ||
| stdout.writeln(e); | ||
| // Extract the debug connection URL | ||
| if (e.contains('Waiting for connection from Dart debug extension at http://')) { |
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If we have the regexp we can just use firstMatch and it'll be null if there isn't a match. It's harder to keep 2 copies of this string in sync.
| r'Waiting for connection from Dart debug extension at (http://[^\s]+)', | ||
| ); | ||
| final Match? match = debugUrlPattern.firstMatch(e); | ||
| if (match != null && !sawDebugUrl.isCompleted) { |
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Is it possible to see the debug URL twice? Seems like something is off if that happens so perhaps we should throw a clear error. Otherwise it'll just look like a timeout.
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| io.Process? chromeProcess; | ||
| try { | ||
| // Step 1: Start Flutter app with web-server device (will wait for debug connection) |
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Comment step numbers are all off by 1. I actually think the comments are unnecessary since the debugPrint is self-commenting.
| subscription: subscription, | ||
| ); | ||
| } catch (e) { | ||
| // Clean up on error |
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Should this call cleanupWebSocketTestResources?
| debugPrint('Step 5: Testing hot reload with WebSocket connection...'); | ||
| try { | ||
| // Test hot reload functionality | ||
| debugPrint('Step 6: Testing hot reload with WebSocket connection...'); |
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Having step numbers here requires keeping all these files in sync. If the common file changes then we would have to update this one too. I think for the actual testing we can omit the step numbers.
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flutter/flutter@a4cb00a...c65f01d 2025-08-26 engine-flutter-autoroll@skia.org Roll Packages from fe66130 to 1ef712e (4 revisions) (flutter/flutter#174442) 2025-08-26 15619084+vashworth@users.noreply.github.com Revert "Directly generate a Mach-O dynamic library using gen_snapshot (#171626) (flutter/flutter#174392) 2025-08-26 49699333+dependabot[bot]@users.noreply.github.com Bump codecov/codecov-action from 5.4.0 to 5.5.0 in the all-github-actions group (flutter/flutter#174436) 2025-08-26 engine-flutter-autoroll@skia.org Roll Skia from 9daab16abbf9 to 21214d63fc40 (1 revision) (flutter/flutter#174431) 2025-08-26 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from UiY8gj468PZUj6QTm... to L5zGzsIWIS8N36AFQ... (flutter/flutter#174430) 2025-08-26 engine-flutter-autoroll@skia.org Roll Dart SDK from f1f90d413dd3 to 9054cd8af73c (2 revisions) (flutter/flutter#174428) 2025-08-26 engine-flutter-autoroll@skia.org Roll Skia from afb5c22d9ba0 to 9daab16abbf9 (2 revisions) (flutter/flutter#174429) 2025-08-26 engine-flutter-autoroll@skia.org Roll Skia from 2227187dbdcf to afb5c22d9ba0 (1 revision) (flutter/flutter#174425) 2025-08-26 87506348+jingshao-code@users.noreply.github.com [iOS][Secure Paste] Custom edit menu actions (flutter/flutter#171825) 2025-08-26 huy@nevercode.io Make SystemUiOverlayStyle to be diagnosticable (flutter/flutter#174018) 2025-08-26 34465683+rkishan516@users.noreply.github.com Fix: Active step fully colored in vertical mode (flutter/flutter#173152) 2025-08-26 32538273+ValentinVignal@users.noreply.github.com Migrate to use `WidgetStateProperty` (flutter/flutter#174323) 2025-08-26 engine-flutter-autoroll@skia.org Roll Skia from ed42a94ee066 to 2227187dbdcf (3 revisions) (flutter/flutter#174417) 2025-08-26 engine-flutter-autoroll@skia.org Roll Dart SDK from a0e39d9b4a58 to f1f90d413dd3 (1 revision) (flutter/flutter#174409) 2025-08-26 jason-simmons@users.noreply.github.com [Impeller] Flush the data written to the device buffer by RoundSuperellipseGeometry (flutter/flutter#174316) 2025-08-26 flar@google.com Remove obsolete vulkan_window source files (flutter/flutter#174087) 2025-08-25 1961493+harryterkelsen@users.noreply.github.com [web] Migrate non-CanvasKit-specific tests to ui/ (flutter/flutter#174396) 2025-08-25 jessy.yameogo@gmail.com Create Hot Restart over websocket test (flutter/flutter#173852) 2025-08-25 engine-flutter-autoroll@skia.org Roll Dart SDK from e283a9e88242 to a0e39d9b4a58 (1 revision) (flutter/flutter#174383) 2025-08-25 matanlurey@users.noreply.github.com Update `master` CHANGELOG for 3.35.2 (flutter/flutter#174399) 2025-08-25 engine-flutter-autoroll@skia.org Roll Skia from da724d312e65 to ed42a94ee066 (4 revisions) (flutter/flutter#174394) 2025-08-25 58529443+srujzs@users.noreply.github.com Update dwds to 25.0.3 (flutter/flutter#174379) 2025-08-25 38427679+xVemu@users.noreply.github.com Fix logic statements in year2023 documentation (flutter/flutter#174120) 2025-08-25 jason-simmons@users.noreply.github.com Release thread-local resources when submitting a Flutter GPU command buffer (flutter/flutter#173663) 2025-08-25 1961493+harryterkelsen@users.noreply.github.com [web] Refactor LayerScene out of CanvasKit (flutter/flutter#174375) 2025-08-25 15619084+vashworth@users.noreply.github.com Stream logs from `devicectl` and `lldb` (flutter/flutter#173724) 2025-08-25 jmccandless@google.com NavigatorPopScope examples no longer use deprecated onPop. (flutter/flutter#174291) 2025-08-25 mohellebiabdessalem@gmail.com fix typo in test documentation function name (flutter/flutter#174297) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-packages Please CC stuartmorgan@google.com on the revert to ensure that a human is aware of the problem. To file a bug in Packages: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
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- Create hot restart over websocket test - refactored websocket_dwds_test_common Closes dart-lang/webdev#2669 Blocked by hot restart bug: Fix in dart-lang/webdev#2668 and flutter#173777 - This PR can be landed once the bug above is fixed in dwds and the dwds version is updated --------- Co-authored-by: Srujan Gaddam <58529443+srujzs@users.noreply.github.com>
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- Create hot restart over websocket test - refactored websocket_dwds_test_common Closes dart-lang/webdev#2669 Blocked by hot restart bug: Fix in dart-lang/webdev#2668 and flutter#173777 - This PR can be landed once the bug above is fixed in dwds and the dwds version is updated --------- Co-authored-by: Srujan Gaddam <58529443+srujzs@users.noreply.github.com>
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- Create hot restart over websocket test - refactored websocket_dwds_test_common Closes dart-lang/webdev#2669 Blocked by hot restart bug: Fix in dart-lang/webdev#2668 and flutter#173777 - This PR can be landed once the bug above is fixed in dwds and the dwds version is updated --------- Co-authored-by: Srujan Gaddam <58529443+srujzs@users.noreply.github.com>
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Closes dart-lang/webdev#2669
Blocked by hot restart bug: Fix in dart-lang/webdev#2668 and #173777