// Copyright 2017 The Chromium 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:ui' show VoidCallback; | |
List<String> captureOutput(VoidCallback fn) { | |
final List<String> log = <String>[]; | |
runZoned<void>(fn, zoneSpecification: new ZoneSpecification( | |
print: (Zone self, | |
ZoneDelegate parent, | |
Zone zone, | |
String line) { | |
log.add(line); | |
}, | |
)); | |
return log; | |
} |