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b101a7d002
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548 Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
40 lines
1.1 KiB
Dart
40 lines
1.1 KiB
Dart
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// @dart = 2.9
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library hasNextIterator.test;
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import "package:expect/expect.dart";
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import 'dart:collection';
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main() {
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var it = new HasNextIterator([].iterator);
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Expect.isFalse(it.hasNext);
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Expect.isFalse(it.hasNext);
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Expect.throwsStateError(() => it.next());
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Expect.isFalse(it.hasNext);
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it = new HasNextIterator([1].iterator);
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Expect.isTrue(it.hasNext);
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Expect.isTrue(it.hasNext);
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Expect.equals(1, it.next());
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Expect.isFalse(it.hasNext);
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Expect.isFalse(it.hasNext);
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Expect.throwsStateError(() => it.next());
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Expect.isFalse(it.hasNext);
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it = new HasNextIterator([1, 2].iterator);
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Expect.isTrue(it.hasNext);
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Expect.isTrue(it.hasNext);
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Expect.equals(1, it.next());
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Expect.isTrue(it.hasNext);
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Expect.isTrue(it.hasNext);
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Expect.equals(2, it.next());
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Expect.isFalse(it.hasNext);
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Expect.isFalse(it.hasNext);
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Expect.throwsStateError(() => it.next());
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Expect.isFalse(it.hasNext);
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}
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