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Do a clean shutdown of the flutter_tools processes started by observatory_port_test (#159169)

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Killing the flutter_tools parent process may leak child processes
spawned by the tools.

Also wait for the message indicating that DevTools has started before
stopping flutter_tools. If DevTools has not fully launched, then there
may be a race between DevTools startup and flutter_tools shutdown.

Fixes https://github.com/flutter/flutter/issues/159154
This commit is contained in:
Jason Simmons 2024-11-21 11:04:06 -08:00 committed by GitHub
parent 93d772c5cd
commit d7f5547ecd
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1 changed files with 6 additions and 4 deletions
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10
packages/flutter_tools/test/integration.shard/observatory_port_test.dart
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@ -26,7 +26,7 @@ Future<void> waitForVmServiceMessage(Process process, int port) async {
.transform(utf8.decoder)
.listen((String line) {
printOnFailure(line);
if (line.contains('A Dart VM Service on Flutter test device is available at')) {
if (line.contains('The Flutter DevTools debugger and profiler on Flutter test device is available at')) {
if (line.contains('http://127.0.0.1:$port')) {
completer.complete();
} else {
@ -66,7 +66,9 @@ void main() {
'flutter-tester',
], workingDirectory: tempDir.path);
await waitForVmServiceMessage(process, port);
process.kill();
// Send a quit command to flutter_tools to cleanly shut down the tool
// and its child processes.
process.stdin.writeln('q');
await process.exitCode;
});
@ -88,7 +90,7 @@ void main() {
'flutter-tester',
], workingDirectory: tempDir.path);
await waitForVmServiceMessage(process, ddsPort);
process.kill();
process.stdin.writeln('q');
await process.exitCode;
});
@ -105,7 +107,7 @@ void main() {
'flutter-tester',
], workingDirectory: tempDir.path);
await waitForVmServiceMessage(process, ddsPort);
process.kill();
process.stdin.writeln('q');
await process.exitCode;
});