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flutter/dev/integration_tests
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Chris Bracken 4509b15d2d
Mark integration_ui flaky (#17319) 
This test fails consistently on mac2 and mac3 with the attached Moto G4
devices but passes consistently on other machines.

Adding a delay of 1s right after driver.connect() in setUpAll() causes
it to pass on the machines in question, which suggests a race condition.
Specifically it looks like connect returns the moment Flutter Driver
identifies that the isolate is up and running, but empirically it looks
like we start running the first test before the UI is actually up. This
triggers a failure wherein we start looking for elements before they're
onstage.

Link to viewport.dart:213 at HEAD:
b2b4665926/packages/flutter/lib/src/widgets/viewport.dart (L213)

Stack trace:
FlutterDriver waitFor should find text "present"

```
  DriverError: Error in Flutter application: Uncaught extension error while executing waitFor: NoSuchMethodError: The getter 'visible' was called on null.
  Receiver: null
  Tried calling: visible
  #0      Object.noSuchMethod (dart:core/runtime/libobject_patch.dart:46:5)
  #1      _ViewportElement.debugVisitOnstageChildren. (package:flutter/src/widgets/viewport.dart:213:36)
  #2      WhereIterator.moveNext (dart:_internal/iterable.dart:439:11)
  #3      Iterable.forEach (dart:core/iterable.dart)
  #4      _ViewportElement.debugVisitOnstageChildren (package:flutter/src/widgets/viewport.dart:214:8)
  #5      _DepthFirstChildIterator._reverseChildrenOf (package:flutter_test/src/all_elements.dart:54:15)
  #6      _DepthFirstChildIterator.moveNext (package:flutter_test/src/all_elements.dart:45:19)
  #7      CachingIterable._fillNext (package:flutter/src/foundation/basic_types.dart:252:27)
  #8      _LazyListIterator.moveNext (package:flutter/src/foundation/basic_types.dart:279:21)
  #9      WhereIterator.moveNext (dart:_internal/iterable.dart:438:22)
  #10     CachingIterable._fillNext (package:flutter/src/foundation/basic_types.dart:252:27)
  #11     _LazyListIterator.moveNext (package:flutter/src/foundation/basic_types.dart:279:21)
  #12     Iterable.isEmpty (dart:core/iterable.dart:449:33)
  #13     Iterable.isNotEmpty (dart:core/iterable.dart:456:27)
  #14     FlutterDriverExtension._waitForElement. (package:flutter_driver/src/extension/extension.dart:215:51)
  #15     FlutterDriverExtension._waitUntilFrame (package:flutter_driver/src/extension/extension.dart:197:19)
  #16     FlutterDriverExtension._waitForElement (package:flutter_driver/src/extension/extension.dart:215:11)

  #17     FlutterDriverExtension._waitFor (package:flutter_driver/src/extension/extension.dart:286:11)

  #18     FlutterDriverExtension.call (package:flutter_driver/src/extension/extension.dart:168:51)

  #19     BindingBase.registerServiceExtension. (package:flutter/src/foundation/binding.dart:370:32)
```

Removes a previous hack that no longer appears to help (adding a 1
second delay in setUpAll() does seem to work around this issue though).
2018-05-06 18:00:35 -07:00
..
channels Increased the channels test timeout (#17018) 2018-04-26 14:09:23 -07:00
external_ui Update dependencies (#16442) 2018-04-10 14:27:53 -07:00
flavors Update dependencies (#16442) 2018-04-10 14:27:53 -07:00
platform_interaction Update dependencies (#16442) 2018-04-10 14:27:53 -07:00
ui Mark integration_ui flaky (#17319) 2018-05-06 18:00:35 -07:00
README.md Integration test for channel communication (#9621) 2017-04-27 08:44:28 +02:00

README.md

Automated Flutter integration test suites. Each suite consists of a complete Flutter app and a flutter_driver specification that drives tests from the UI.

Intended for use with devicelab.