[macOS] Refactor the flutter run macOS console output test (#114645)
This commit is contained in:
Loïc Sharma
GitHub
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7020f59ace
commit
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@ -2,122 +2,12 @@
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:async';
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import 'dart:convert';
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import 'dart:io';
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import 'package:flutter_devicelab/framework/devices.dart';
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import 'package:flutter_devicelab/framework/framework.dart';
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import 'package:flutter_devicelab/framework/task_result.dart';
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import 'package:flutter_devicelab/framework/utils.dart';
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import 'package:path/path.dart' as path;
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import 'package:flutter_devicelab/tasks/run_tests.dart';
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/// Basic launch test for desktop operating systems.
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void main() {
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task(() async {
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deviceOperatingSystem = DeviceOperatingSystem.macos;
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final Device device = await devices.workingDevice;
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// TODO(cbracken): https://github.com/flutter/flutter/issues/87508#issuecomment-1043753201
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// Switch to dev/integration_tests/ui once we have CocoaPods working on M1 Macs.
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final Directory appDir = dir(path.join(flutterDirectory.path, 'examples/hello_world'));
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await inDirectory(appDir, () async {
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final Completer<void> ready = Completer<void>();
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final List<String> stdout = <String>[];
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final List<String> stderr = <String>[];
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print('run: starting...');
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final List<String> options = <String>[
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'--release',
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'-d',
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device.deviceId,
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];
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final Process run = await startFlutter(
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'run',
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options: options,
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isBot: false,
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);
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int? runExitCode;
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run.stdout
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.transform<String>(utf8.decoder)
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.transform<String>(const LineSplitter())
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.listen((String line) {
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print('run:stdout: $line');
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if (
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!line.startsWith('Building flutter tool...') &&
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!line.startsWith('Running "flutter pub get" in ui...') &&
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!line.startsWith('Resolving dependencies...') &&
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// Catch engine piped output from unrelated concurrent Flutter apps
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!line.contains(RegExp(r'[A-Z]\/flutter \([0-9]+\):')) &&
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// Empty lines could be due to the progress spinner breaking up.
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line.length > 1
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) {
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stdout.add(line);
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}
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if (line.contains('Quit (terminate the application on the device).')) {
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ready.complete();
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}
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});
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run.stderr
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.transform<String>(utf8.decoder)
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.transform<String>(const LineSplitter())
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.listen((String line) {
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print('run:stderr: $line');
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stderr.add(line);
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});
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unawaited(run.exitCode.then<void>((int exitCode) { runExitCode = exitCode; }));
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await Future.any<dynamic>(<Future<dynamic>>[ ready.future, run.exitCode ]);
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if (runExitCode != null) {
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throw 'Failed to run test app; runner unexpected exited, with exit code $runExitCode.';
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}
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run.stdin.write('q');
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await run.exitCode;
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_findNextMatcherInList(
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stdout,
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(String line) => line.startsWith('Launching lib/main.dart on ') && line.endsWith(' in release mode...'),
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'Launching lib/main.dart on',
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);
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_findNextMatcherInList(
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stdout,
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(String line) => line.contains('Quit (terminate the application on the device).'),
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'q Quit (terminate the application on the device)',
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);
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_findNextMatcherInList(
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stdout,
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(String line) => line == 'Application finished.',
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'Application finished.',
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);
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});
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return TaskResult.success(null);
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});
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}
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void _findNextMatcherInList(
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List<String> list,
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bool Function(String testLine) matcher,
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String errorMessageExpectedLine
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) {
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final List<String> copyOfListForErrorMessage = List<String>.from(list);
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while (list.isNotEmpty) {
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final String nextLine = list.first;
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list.removeAt(0);
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if (matcher(nextLine)) {
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return;
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}
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}
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throw '''
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Did not find expected line
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$errorMessageExpectedLine
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in flutter run --release stdout
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$copyOfListForErrorMessage
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''';
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deviceOperatingSystem = DeviceOperatingSystem.macos;
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task(createMacOSRunReleaseTest());
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}
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158
dev/devicelab/lib/tasks/run_tests.dart
Normal file
158
dev/devicelab/lib/tasks/run_tests.dart
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@ -0,0 +1,158 @@
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// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:async';
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import 'dart:convert';
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import 'dart:io';
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import '../framework/devices.dart';
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import '../framework/framework.dart';
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import '../framework/task_result.dart';
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import '../framework/utils.dart';
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TaskFunction createMacOSRunReleaseTest() {
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return DesktopRunOutputTest(
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// TODO(cbracken): https://github.com/flutter/flutter/issues/87508#issuecomment-1043753201
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// Switch to dev/integration_tests/ui once we have CocoaPods working on M1 Macs.
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'${flutterDirectory.path}/examples/hello_world',
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'lib/main.dart',
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release: true,
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);
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}
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class DesktopRunOutputTest extends RunOutputTask {
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DesktopRunOutputTest(
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super.testDirectory,
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super.testTarget, {
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required super.release,
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}
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);
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@override
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TaskResult verify(List<String> stdout, List<String> stderr) {
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_findNextMatcherInList(
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stdout,
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(String line) => line.startsWith('Launching lib/main.dart on ') &&
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line.endsWith(' in ${release ? 'release' : 'debug'} mode...'),
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'Launching lib/main.dart on',
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);
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_findNextMatcherInList(
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stdout,
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(String line) => line.contains('Quit (terminate the application on the device).'),
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'q Quit (terminate the application on the device)',
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);
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_findNextMatcherInList(
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stdout,
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(String line) => line == 'Application finished.',
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'Application finished.',
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);
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return TaskResult.success(null);
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}
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}
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/// Test that the output of `flutter run` is expected.
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abstract class RunOutputTask {
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RunOutputTask(
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this.testDirectory,
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this.testTarget, {
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required this.release,
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}
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);
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/// The directory where the app under test is defined.
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final String testDirectory;
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/// The main entry-point file of the application, as run on the device.
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final String testTarget;
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/// Whether to run the app in release mode.
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final bool release;
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Future<TaskResult> call() {
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return inDirectory<TaskResult>(testDirectory, () async {
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final Device device = await devices.workingDevice;
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await device.unlock();
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final String deviceId = device.deviceId;
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final Completer<void> ready = Completer<void>();
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final List<String> stdout = <String>[];
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final List<String> stderr = <String>[];
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final List<String> options = <String>[
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testTarget,
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'-d',
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deviceId,
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if (release) '--release',
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];
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final Process run = await startFlutter(
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'run',
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options: options,
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isBot: false,
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);
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int? runExitCode;
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run.stdout
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.transform<String>(utf8.decoder)
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.transform<String>(const LineSplitter())
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.listen((String line) {
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print('run:stdout: $line');
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stdout.add(line);
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if (line.contains('Quit (terminate the application on the device).')) {
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ready.complete();
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}
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});
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run.stderr
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.transform<String>(utf8.decoder)
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.transform<String>(const LineSplitter())
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.listen((String line) {
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print('run:stderr: $line');
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stderr.add(line);
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});
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unawaited(run.exitCode.then<void>((int exitCode) { runExitCode = exitCode; }));
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await Future.any<dynamic>(<Future<dynamic>>[ ready.future, run.exitCode ]);
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if (runExitCode != null) {
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throw 'Failed to run test app; runner unexpected exited, with exit code $runExitCode.';
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}
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run.stdin.write('q');
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await run.exitCode;
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return verify(stdout, stderr);
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});
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}
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/// Verify the output of `flutter run`.
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TaskResult verify(List<String> stdout, List<String> stderr) => throw UnimplementedError('verify is not implemented');
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/// Helper that verifies a line in [list] matches [matcher].
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/// The [list] is updated to contain the lines remaining after the match.
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void _findNextMatcherInList(
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List<String> list,
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bool Function(String testLine) matcher,
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String errorMessageExpectedLine
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) {
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final List<String> copyOfListForErrorMessage = List<String>.from(list);
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while (list.isNotEmpty) {
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final String nextLine = list.first;
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list.removeAt(0);
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if (matcher(nextLine)) {
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return;
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}
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}
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throw '''
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Did not find expected line
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$errorMessageExpectedLine
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in flutter run ${release ? '--release' : ''} stdout
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$copyOfListForErrorMessage
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''';
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}
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}
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