capture_output.dart 526 Bytes
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// 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
// found in the LICENSE file.

import 'dart:async';
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import 'package:flutter/foundation.dart';
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List<String> captureOutput(VoidCallback fn) {
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  final List<String> log = <String>[];
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  runZoned<void>(fn, zoneSpecification: ZoneSpecification(
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    print: (
      Zone self,
      ZoneDelegate parent,
      Zone zone,
      String line,
    ) {
      log.add(line);
    },
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  ));

  return log;
}