blob: d5fa522214ce7c79d7d72f141468b52627ea6b4f [file] [log] [blame]
// 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 '../convert.dart';
import '../globals.dart' as globals;
import 'watcher.dart';
/// Prints JSON events when running a test in --machine mode.
class EventPrinter extends TestWatcher {
EventPrinter({StringSink out, TestWatcher parent})
: _out = out ?? globals.stdio.stdout,
_parent = parent;
final StringSink _out;
final TestWatcher _parent;
@override
void handleStartedProcess(ProcessEvent event) {
_sendEvent('test.startedProcess',
<String, dynamic>{'observatoryUri': event.observatoryUri.toString()});
_parent?.handleStartedProcess(event);
}
void _sendEvent(String name, [ dynamic params ]) {
final Map<String, dynamic> map = <String, dynamic>{'event': name};
if (params != null) {
map['params'] = params;
}
_send(map);
}
void _send(Map<String, dynamic> command) {
final String encoded = json.encode(command, toEncodable: _jsonEncodeObject);
_out.writeln('\n[$encoded]');
}
dynamic _jsonEncodeObject(dynamic object) {
if (object is Uri) {
return object.toString();
}
return object;
}
}