LibTest/async/Stream/map_A03_t01.test.dart

// Copyright (c) 2016, 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 Stream<S> map<S>(S convert(T event))
/// Error and done events are passed through unchanged to the returned stream.
///
/// @description Checks that each error of this stream is passed to returned
/// stream.
/// @author a.semenov@unipro.ru

library map_A03_t01;
import "dart:async";
import "../../../Utils/expect.dart";

void test(CreateStreamWithErrorsFunction create) {
  Stream stream = create(["a", "b", "c"], isError:(e) => true);
  AsyncExpect.events([], ["a", "b", "c"], stream.map((e) => e));

  stream = create([1, 2, 3, 4, 5], isError:(e) => e.isEven);
  AsyncExpect.events([1, 3, 5], [2, 4], stream.map((e) => e));
}