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// 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 'package:path/path.dart' as path;
import 'package:flutter_devicelab/framework/adb.dart';
import 'package:flutter_devicelab/framework/framework.dart';
import 'package:flutter_devicelab/framework/utils.dart';
void main() {
task(() async {
final Device device = await devices.workingDevice;
await device.unlock();
final Directory appDir = dir(path.join(flutterDirectory.path, 'dev/integration_tests/ui'));
await inDirectory(appDir, () async {
final Completer<void> ready = Completer<void>();
final List<String> stdout = <String>[];
final List<String> stderr = <String>[];
// Uninstall if the app is already installed on the device to get to a clean state.
print('uninstalling...');
final Process uninstall = await startProcess(
path.join(flutterDirectory.path, 'bin', 'flutter'),
<String>['--suppress-analytics', 'install', '--uninstall-only', '-d', device.deviceId],
)..stdout
.transform<String>(utf8.decoder)
.transform<String>(const LineSplitter())
.listen((String line) {
print('uninstall:stdout: $line');
})..stderr
.transform<String>(utf8.decoder)
.transform<String>(const LineSplitter())
.listen((String line) {
print('uninstall:stderr: $line');
stderr.add(line);
});
if (await uninstall.exitCode != 0) {
throw 'flutter install --uninstall-only failed.';
}
print('run: starting...');
final Process run = await startProcess(
path.join(flutterDirectory.path, 'bin', 'flutter'),
<String>['--suppress-analytics', 'run', '--release', '-d', device.deviceId, 'lib/main.dart'],
isBot: false, // we just want to test the output, not have any debugging info
);
int runExitCode;
run.stdout
.transform<String>(utf8.decoder)
.transform<String>(const LineSplitter())
.listen((String line) {
print('run:stdout: $line');
if (
!line.startsWith('Building flutter tool...') &&
!line.startsWith('Running "flutter pub get" in ui...') &&
!line.startsWith('Initializing gradle...') &&
!line.contains('settings_aar.gradle') &&
!line.startsWith('Resolving dependencies...') &&
// Catch engine piped output from unrelated concurrent Flutter apps
!line.contains(RegExp(r'[A-Z]\/flutter \([0-9]+\):')) &&
// Empty lines could be due to the progress spinner breaking up.
line.length > 1
) {
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);
});
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');
await run.exitCode;
if (stderr.isNotEmpty) {
throw 'flutter run --release had output on standard error.';
}
_findNextMatcherInList(
stdout,
(String line) => line.startsWith('Launching lib/main.dart on ') && line.endsWith(' in release mode...'),
'Launching lib/main.dart on',
);
_findNextMatcherInList(
stdout,
(String line) => line.startsWith("Running Gradle task 'assembleRelease'..."),
"Running Gradle task 'assembleRelease'...",
);
_findNextMatcherInList(
stdout,
(String line) => line.contains('Built build/app/outputs/flutter-apk/app-release.apk (') && line.contains('MB).'),
'Built build/app/outputs/flutter-apk/app-release.apk',
);
_findNextMatcherInList(
stdout,
(String line) => line.startsWith('Installing build/app/outputs/flutter-apk/app.apk...'),
'Installing build/app/outputs/flutter-apk/app.apk...',
);
_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);
});
}
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);
if (matcher(nextLine)) {
return;
}
}
throw '''
Did not find expected line
$errorMessageExpectedLine
in flutter run --release stdout
$copyOfListForErrorMessage
''';
}