blob: 9e36e89d8fc183c8c5cf73a914f39e63081aa389 [file] [log] [blame]
// 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.
// @dart = 2.9
/// @assertion void addError(error, [StackTrace stackTrace])
/// Passes the [error] to the target consumer as an error event.
/// @description Checks that result error [StackTrace] in consumer is [null] if
/// it was not specified in the [addError] call.
/// @author iarkh@unipro.ru
import "../../../Utils/expect.dart";
import "dart:async";
import "dart:io";
int called = 0;
class MyStreamConsumer extends StreamConsumer<List<int>> {
Future<dynamic> addStream(Stream<List> stream) {
stream.toList().then((x) {
Expect.fail("Should not be here!");
}, onError: (error, StackTrace st) {
called++;
Expect.isNotNull(st);
Expect.equals("", st.toString());
});
return new Future(() {});
}
Future close() { return new Future(() {}); }
}
test() async {
StreamConsumer consumer = new MyStreamConsumer();
IOSink sink = new IOSink(consumer);
sink.addError("ERROR");
await sink.close();
Expect.equals(1, called);
asyncEnd();
}
main() {
asyncStart();
test();
}