Regression in cloud_firestore and firebase_database Android Transactions #32657
Description
I'm noticing a regression in the transactions integration test on Android on the latest Flutter master. The test is passing on Flutter stable.
Command to run test:
flutter drive test_driver/cloud_firestore.dart
On Flutter stable:
I/flutter ( 6535): Observatory listening on http://127.0.0.1:34300/tsSx9QLxaFA=/
[info ] FlutterDriver: Connecting to Flutter application at http://127.0.0.1:61653/tsSx9QLxaFA=/
[trace] FlutterDriver: Isolate found with number: 617548898
[trace] FlutterDriver: Isolate is paused at start.
[trace] FlutterDriver: Attempting to resume isolate
[trace] FlutterDriver: Waiting for service extension
I/flutter ( 6535): 00:00 +0: Firestore getDocuments
[info ] FlutterDriver: Connected to Flutter application.
I/flutter ( 6535): 00:01 +1: Firestore increment
I/flutter ( 6535): 00:03 +2: Firestore runTransaction
I/flutter ( 6535): 00:04 +3: Firestore pagination
I/flutter ( 6535): 00:05 +4: (tearDownAll)
I/flutter ( 6535): 00:05 +5: All tests passed!
On Flutter master:
[info ] FlutterDriver: Connected to Flutter application.
I/flutter ( 9558): 00:00 +0: Firestore getDocuments
I/flutter ( 9558): 00:01 +1: Firestore increment
I/flutter ( 9558): 00:02 +2: Firestore runTransaction
I/flutter ( 9558): 00:32 +2: Firestore runTransaction [E]
I/flutter ( 9558): TimeoutException after 0:00:30.000000: Test timed out after 30 seconds.
I/flutter ( 9558): package:test_api/src/backend/invoker.dart 332:28 Invoker._handleError.<fn>
I/flutter ( 9558): dart:async/zone.dart 1120:38 _rootRun
I/flutter ( 9558): dart:async/zone.dart 1021:19 _CustomZone.run
I/flutter ( 9558): package:test_api/src/backend/invoker.dart 330:10 Invoker._handleError
I/flutter ( 9558): package:test_api/src/backend/invoker.dart 283:9 Invoker.heartbeat.<fn>.<fn>
I/flutter ( 9558): dart:async/zone.dart 1124:13 _rootRun
I/flutter ( 9558): dart:async/zone.dart 1021:19 _CustomZone.run
I/flutter ( 9558): package:test_api/src/backend/invoker.dart 281:38 Invoker.heartbeat.<fn>
I/flutter ( 9558): package:stack_trace/src/stack_zone_specification.dart 209:15 StackZoneSpecification._run
I/flutter ( 9558): package:stack_trace/src/stack_zone_specification.dart 119:48 StackZoneSpecification._registerCallback.<fn>
I/flutter ( 9558): dart:async/zone.dart 1124:13 _rootRun
I/flutter ( 9558): dart:async/zone.dart 1021:19 _CustomZone.run
I/flutter ( 9558): dart:a
I/flutter ( 9558): 00:32 +2 -1: Firestore pagination
I/flutter ( 9558): 00:34 +3 -1: (tearDownAll)
I/flutter ( 9558): 00:34 +4 -1: Some tests failed.
The failure seems repeatable rather than a one-time flake.
It's possible that a Flutter platform change is interfering with the Android transactions implementation.