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// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
/// @assertion ByteConversionSink asUtf8Sink(bool allowMalformed)
/// Returns this as a sink that accepts UTF-8 input.
/// If used, this method must be the first and only call to this. It invalidates
/// this. All further operations must be performed on the result.
/// @description Checks that this method returns this as a ByteConversionSink.
/// Test allowMalformed == false
/// @author
import "dart:convert";
import "../../../Utils/expect.dart";
main() {
bool called = false;
var outSink = new ByteConversionSink.withCallback((accumulated) {
called = true;
Expect.listEquals(utf8.encode("1"), accumulated);
StringConversionSink inSink = utf8.encoder.startChunkedConversion(outSink);
ByteConversionSink bcs = inSink.asUtf8Sink(false);
Expect.throws(() {bcs.add([0x80]);}); // Not valid UTF-8 character