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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 'package:flutter_tools/src/globals.dart' as globals;
import '../test_utils.dart';
import 'project.dart';
/// Spawns a background isolate that prints a debug message.
class BackgroundProject extends Project {
@override
final String pubspec = '''
name: test
environment:
sdk: ">=2.0.0-dev.68.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
''';
@override
final String main = r'''
import 'dart:async';
import 'dart:isolate';
import 'package:flutter/widgets.dart';
import 'package:flutter/material.dart';
void main() {
Isolate.spawn<void>(background, null, debugName: 'background');
TestMain();
}
void background(void message) {
TestIsolate();
}
class TestMain {
TestMain() {
debugPrint('Main thread');
}
}
class TestIsolate {
TestIsolate() {
debugPrint('Isolate thread');
}
}
''';
void updateTestIsolatePhrase(String message) {
final String newMainContents = main.replaceFirst('Isolate thread', message);
writeFile(globals.fs.path.join(dir.path, 'lib', 'main.dart'), newMainContents);
}
}
// Spawns a background isolate that repeats a message.
class RepeatingBackgroundProject extends Project {
@override
final String pubspec = '''
name: test
environment:
sdk: ">=2.0.0-dev.68.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
''';
@override
final String main = r'''
import 'dart:async';
import 'dart:isolate';
import 'package:flutter/widgets.dart';
import 'package:flutter/material.dart';
void main() {
Isolate.spawn<void>(background, null, debugName: 'background');
TestMain();
}
void background(void message) {
Timer.periodic(const Duration(milliseconds: 500), (Timer timer) => TestIsolate());
}
class TestMain {
TestMain() {
debugPrint('Main thread');
}
}
class TestIsolate {
TestIsolate() {
debugPrint('Isolate thread');
}
}
''';
void updateTestIsolatePhrase(String message) {
final String newMainContents = main.replaceFirst('Isolate thread', message);
writeFile(globals.fs.path.join(dir.path, 'lib', 'main.dart'), newMainContents);
}
}