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Our current top crasher is an unclear error when ProcessManager fails to resolve an executable path. To fix this, we'd like to being adjusting the process resolution logic and adding more instrumentation to track failures. In order to begin the process, the ProcessManager has been folded back into the flutter tool
83 lines
2.6 KiB
Dart
83 lines
2.6 KiB
Dart
// 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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// @dart = 2.8
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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:file/file.dart';
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import 'package:flutter_tools/src/base/file_system.dart';
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import 'package:flutter_tools/src/base/io.dart';
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import '../src/common.dart';
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import 'test_data/basic_project.dart';
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import 'test_driver.dart';
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import 'test_utils.dart';
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void main() {
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Directory tempDir;
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Process daemonProcess;
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setUp(() async {
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tempDir = createResolvedTempDirectorySync('daemon_mode_test.');
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});
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tearDown(() async {
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tryToDelete(tempDir);
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daemonProcess?.kill();
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});
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testWithoutContext('device.getDevices', () async {
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final BasicProject _project = BasicProject();
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await _project.setUpIn(tempDir);
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final String flutterBin = fileSystem.path.join(getFlutterRoot(), 'bin', 'flutter');
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daemonProcess = await processManager.start(
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<String>[flutterBin, ...getLocalEngineArguments(), '--show-test-device', 'daemon'],
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workingDirectory: tempDir.path,
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);
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final StreamController<String> stdout = StreamController<String>.broadcast();
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transformToLines(daemonProcess.stdout).listen((String line) => stdout.add(line));
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final Stream<Map<String, dynamic>> stream = stdout
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.stream
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.map<Map<String, dynamic>>(parseFlutterResponse)
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.where((Map<String, dynamic> value) => value != null);
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Map<String, dynamic> response = await stream.first;
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expect(response['event'], 'daemon.connected');
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// start listening for devices
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daemonProcess.stdin.writeln('[${jsonEncode(<String, dynamic>{
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'id': 1,
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'method': 'device.enable',
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})}]');
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response = await stream.firstWhere((Map<String, Object> json) => json['id'] == 1);
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expect(response['id'], 1);
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expect(response['error'], isNull);
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// [{"event":"device.added","params":{"id":"flutter-tester","name":
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// "Flutter test device","platform":"flutter-tester","emulator":false}}]
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response = await stream.first;
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expect(response['event'], 'device.added');
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// get the list of all devices
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daemonProcess.stdin.writeln('[${jsonEncode(<String, dynamic>{
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'id': 2,
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'method': 'device.getDevices',
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})}]');
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// Skip other device.added events that may fire (desktop/web devices).
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response = await stream.firstWhere((Map<String, dynamic> response) => response['event'] != 'device.added');
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expect(response['id'], 2);
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expect(response['error'], isNull);
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final dynamic result = response['result'];
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expect(result, isList);
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expect(result, isNotEmpty);
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});
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}
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