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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';
Future<void> testReload(Process process, { Future<void> Function() onListening }) async {
section('Testing hot reload, restart and quit');
final Completer<void> listening = Completer<void>();
final Completer<void> ready = Completer<void>();
final Completer<void> reloaded = Completer<void>();
final Completer<void> restarted = Completer<void>();
final Completer<void> finished = Completer<void>();
final List<String> stdout = <String>[];
final List<String> stderr = <String>[];
if (onListening == null)
listening.complete();
int exitCode;
process.stdout
.transform<String>(utf8.decoder)
.transform<String>(const LineSplitter())
.listen((String line) {
print('attach:stdout: $line');
stdout.add(line);
if (line.contains('Waiting') && onListening != null && !listening.isCompleted)
listening.complete(onListening());
if (line.contains('Quit (terminate the application on the device)'))
ready.complete();
if (line.contains('Reloaded '))
reloaded.complete();
if (line.contains('Restarted application in '))
restarted.complete();
if (line.contains('Application finished'))
finished.complete();
});
process.stderr
.transform<String>(utf8.decoder)
.transform<String>(const LineSplitter())
.listen((String line) {
print('run:stderr: $line');
stdout.add(line);
});
process.exitCode.then<void>((int processExitCode) { exitCode = processExitCode; });
Future<dynamic> eventOrExit(Future<void> event) {
return Future.any<dynamic>(<Future<dynamic>>[
event,
process.exitCode,
]);
}
await eventOrExit(listening.future);
await eventOrExit(ready.future);
if (exitCode != null)
throw TaskResult.failure('Failed to attach to test app; command unexpected exited, with exit code $exitCode.');
process.stdin.write('r');
print('run:stdin: r');
await process.stdin.flush();
await eventOrExit(reloaded.future);
process.stdin.write('R');
print('run:stdin: R');
await process.stdin.flush();
await eventOrExit(restarted.future);
process.stdin.write('q');
print('run:stdin: q');
await process.stdin.flush();
await eventOrExit(finished.future);
await process.exitCode;
if (stderr.isNotEmpty)
throw TaskResult.failure('flutter attach had output on standard error.');
if (exitCode != 0)
throw TaskResult.failure('exit code was not 0');
}
void main() {
const String kAppId = 'com.yourcompany.integration_ui';
const String kActivityId = '$kAppId/com.yourcompany.integration_ui.MainActivity';
task(() async {
final AndroidDevice device = await devices.workingDevice as AndroidDevice;
await device.unlock();
final Directory appDir = dir(path.join(flutterDirectory.path, 'dev/integration_tests/ui'));
await inDirectory(appDir, () async {
section('Building');
final String buildStdout = await eval(
path.join(flutterDirectory.path, 'bin', 'flutter'),
<String>['--suppress-analytics', 'build', 'apk', '--debug', 'lib/main.dart'],
);
final String lastLine = buildStdout.split('\n').last;
final RegExp builtRegExp = RegExp(r'Built (.+)( \(|\.$)');
final String apkPath = builtRegExp.firstMatch(lastLine)[1];
section('Installing $apkPath');
await device.adb(<String>['install', '-r', apkPath]);
try {
section('Launching `flutter attach`');
Process attachProcess = await startProcess(
path.join(flutterDirectory.path, 'bin', 'flutter'),
<String>['-v', '--suppress-analytics', 'attach', '-d', device.deviceId],
isBot: false, // we just want to test the output, not have any debugging info
);
await testReload(attachProcess, onListening: () async {
await device.shellExec('am', <String>['start', '-n', kActivityId]);
});
// Give the device the time to really shut down the app.
await Future<void>.delayed(const Duration(milliseconds: 200));
// After the delay, force-stopping it shouldn't do anything, but doesn't hurt.
await device.shellExec('am', <String>['force-stop', kAppId]);
String currentTime = (await device.shellEval('date', <String>['"+%F %R:%S.000"'])).trim();
print('Start time on device: $currentTime');
section('Relaunching application');
await device.shellExec('am', <String>['start', '-n', kActivityId]);
// If the next line fails, your device may not support regexp search.
final String observatoryLine = await device.adb(<String>['logcat', '-e', 'Observatory listening on http:', '-m', '1', '-T', currentTime]);
print('Found observatory line: $observatoryLine');
final String observatoryUri = RegExp(r'Observatory listening on ((http|//)[a-zA-Z0-9:/=_\-\.\[\]]+)').firstMatch(observatoryLine)[1];
print('Extracted observatory port: $observatoryUri');
section('Launching attach with given port');
attachProcess = await startProcess(
path.join(flutterDirectory.path, 'bin', 'flutter'),
<String>['-v', '--suppress-analytics', 'attach', '--debug-uri',
observatoryUri, '-d', device.deviceId],
isBot: false, // we just want to test the output, not have any debugging info
);
await testReload(attachProcess);
// Give the device the time to really shut down the app.
await Future<void>.delayed(const Duration(milliseconds: 200));
// After the delay, force-stopping it shouldn't do anything, but doesn't hurt.
await device.shellExec('am', <String>['force-stop', kAppId]);
section('Attaching after relaunching application');
await device.shellExec('am', <String>['start', '-n', kActivityId]);
// Let the application launch. Sync to the next time an observatory is ready.
currentTime = (await device.shellEval('date', <String>['"+%F %R:%S.000"'])).trim();
await device.adb(<String>['logcat', '-e', 'Observatory listening on http:', '-m', '1', '-T', currentTime]);
// Attach again now that the VM is already running.
attachProcess = await startProcess(
path.join(flutterDirectory.path, 'bin', 'flutter'),
<String>['-v', '--suppress-analytics', 'attach', '-d', device.deviceId],
isBot: false, // we just want to test the output, not have any debugging info
);
// Verify that it can discover the observatory port from past logs.
await testReload(attachProcess);
} catch (err, st) {
print('Uncaught exception: $err\n$st');
rethrow;
} finally {
section('Uninstalling');
await device.adb(<String>['uninstall', kAppId]);
print('uninstall complete');
}
});
return TaskResult.success(null);
});
}