| /* |
| * Copyright (c) 2011, 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 Stream<T> skip(int count) |
| * Skips the first count data events from this stream. |
| * @description Checks that the first n elements are skipped. |
| * @author kaigorodov |
| */ |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| import "IsolateStream.dart" as IsolateStream; |
| |
| void check(List data, int count) { |
| Stream s = IsolateStream.fromIterable(data); |
| Stream t = s.skip(count); |
| int seen = 0; |
| asyncStart(); |
| t.listen((value) { |
| Expect.isTrue(seen + count < data.length, "seen=$seen, count=$count"); |
| var expected = data[count + seen]; |
| Expect.deepEquals(expected, value, "$expected!=$value"); |
| seen++; |
| }, onDone: () { |
| asyncEnd(); |
| }); |
| } |
| |
| main() { |
| check([], 0); |
| check([], 1); |
| check([], 10); |
| check([null], 0); |
| check([null], 1); |
| check([null], 2); |
| check([1, 2, 3], 0); |
| check([1, 2, 3], 1); |
| check([1, 2, 3], 2); |
| check([1, 2, 3], 12); |
| check([11, 22, []], 2); |
| check([ |
| [], |
| [[]], |
| [ |
| [[]] |
| ] |
| ], 2); |
| } |