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[macOS] Refactor the
flutter run macOS console output test (#114645)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,158 @@ | ||
| // Copyright 2014 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
|
|
||
| import 'dart:async'; | ||
| import 'dart:convert'; | ||
| import 'dart:io'; | ||
|
|
||
| import '../framework/devices.dart'; | ||
| import '../framework/framework.dart'; | ||
| import '../framework/task_result.dart'; | ||
| import '../framework/utils.dart'; | ||
|
|
||
| TaskFunction createMacOSRunReleaseTest() { | ||
| return DesktopRunOutputTest( | ||
| // TODO(cbracken): https://github.com/flutter/flutter/issues/87508#issuecomment-1043753201 | ||
| // Switch to dev/integration_tests/ui once we have CocoaPods working on M1 Macs. | ||
| '${flutterDirectory.path}/examples/hello_world', | ||
| 'lib/main.dart', | ||
| release: true, | ||
| ); | ||
| } | ||
|
|
||
| class DesktopRunOutputTest extends RunOutputTask { | ||
| DesktopRunOutputTest( | ||
| super.testDirectory, | ||
| super.testTarget, { | ||
| required super.release, | ||
| } | ||
| ); | ||
|
|
||
| @override | ||
| TaskResult verify(List<String> stdout, List<String> stderr) { | ||
| _findNextMatcherInList( | ||
| stdout, | ||
| (String line) => line.startsWith('Launching lib/main.dart on ') && | ||
| line.endsWith(' in ${release ? 'release' : 'debug'} mode...'), | ||
| 'Launching lib/main.dart on', | ||
| ); | ||
|
|
||
| _findNextMatcherInList( | ||
| stdout, | ||
| (String line) => line.contains('Quit (terminate the application on the device).'), | ||
| 'q Quit (terminate the application on the device)', | ||
| ); | ||
|
|
||
| _findNextMatcherInList( | ||
| stdout, | ||
| (String line) => line == 'Application finished.', | ||
| 'Application finished.', | ||
| ); | ||
|
|
||
| return TaskResult.success(null); | ||
| } | ||
| } | ||
|
|
||
| /// Test that the output of `flutter run` is expected. | ||
| abstract class RunOutputTask { | ||
| RunOutputTask( | ||
| this.testDirectory, | ||
| this.testTarget, { | ||
| required this.release, | ||
| } | ||
| ); | ||
|
|
||
| /// The directory where the app under test is defined. | ||
| final String testDirectory; | ||
| /// The main entry-point file of the application, as run on the device. | ||
| final String testTarget; | ||
| /// Whether to run the app in release mode. | ||
| final bool release; | ||
|
|
||
| Future<TaskResult> call() { | ||
| return inDirectory<TaskResult>(testDirectory, () async { | ||
| final Device device = await devices.workingDevice; | ||
| await device.unlock(); | ||
| final String deviceId = device.deviceId; | ||
|
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||
| final Completer<void> ready = Completer<void>(); | ||
| final List<String> stdout = <String>[]; | ||
| final List<String> stderr = <String>[]; | ||
|
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| final List<String> options = <String>[ | ||
| testTarget, | ||
| '-d', | ||
| deviceId, | ||
| if (release) '--release', | ||
| ]; | ||
|
|
||
| final Process run = await startFlutter( | ||
| 'run', | ||
| options: options, | ||
| isBot: false, | ||
| ); | ||
|
|
||
| int? runExitCode; | ||
| run.stdout | ||
| .transform<String>(utf8.decoder) | ||
| .transform<String>(const LineSplitter()) | ||
| .listen((String line) { | ||
| print('run:stdout: $line'); | ||
| stdout.add(line); | ||
| if (line.contains('Quit (terminate the application on the device).')) { | ||
| ready.complete(); | ||
| } | ||
| }); | ||
| run.stderr | ||
| .transform<String>(utf8.decoder) | ||
| .transform<String>(const LineSplitter()) | ||
| .listen((String line) { | ||
| print('run:stderr: $line'); | ||
| stderr.add(line); | ||
| }); | ||
| unawaited(run.exitCode.then<void>((int exitCode) { runExitCode = exitCode; })); | ||
| await Future.any<dynamic>(<Future<dynamic>>[ ready.future, run.exitCode ]); | ||
| if (runExitCode != null) { | ||
| throw 'Failed to run test app; runner unexpected exited, with exit code $runExitCode.'; | ||
| } | ||
| run.stdin.write('q'); | ||
|
|
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| await run.exitCode; | ||
|
|
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| return verify(stdout, stderr); | ||
| }); | ||
| } | ||
|
|
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| /// Verify the output of `flutter run`. | ||
| TaskResult verify(List<String> stdout, List<String> stderr) => throw UnimplementedError('verify is not implemented'); | ||
|
|
||
| /// Helper that verifies a line in [list] matches [matcher]. | ||
| /// The [list] is updated to contain the lines remaining after the match. | ||
| void _findNextMatcherInList( | ||
| List<String> list, | ||
| bool Function(String testLine) matcher, | ||
| String errorMessageExpectedLine | ||
| ) { | ||
| final List<String> copyOfListForErrorMessage = List<String>.from(list); | ||
|
|
||
| while (list.isNotEmpty) { | ||
| final String nextLine = list.first; | ||
| list.removeAt(0); | ||
|
|
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| if (matcher(nextLine)) { | ||
| return; | ||
| } | ||
| } | ||
|
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||
| throw ''' | ||
| Did not find expected line | ||
| $errorMessageExpectedLine | ||
| in flutter run ${release ? '--release' : ''} stdout | ||
| $copyOfListForErrorMessage | ||
| '''; | ||
| } | ||
| } |