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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>
44 lines
1.1 KiB
Dart
44 lines
1.1 KiB
Dart
// Copyright (c) 2018, 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 list_unmodifiable_cast_test;
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import "package:expect/expect.dart";
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import 'dart:collection';
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void main() {
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test(const [37]);
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test(new UnmodifiableListView([37]));
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test(new UnmodifiableListView<num>(<num>[37]));
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test(new UnmodifiableListView<num>(<int>[37]));
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test(new UnmodifiableListView<num>(<num>[37]).cast<int>());
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test(new UnmodifiableListView<num>(<int>[37]).cast<int>());
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test(new UnmodifiableListView<Object>(<num>[37]).cast<int>());
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test(new UnmodifiableListView<Object>(<int>[37]).cast<num>());
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var m2 = new List<num>.unmodifiable([37]);
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test(m2);
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test(m2.cast<int>());
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}
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void test(List list) {
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Expect.equals(1, list.length);
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Expect.equals(37, list.first);
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Expect.throws(list.clear);
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Expect.throws(() {
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list.remove(37);
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});
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Expect.throws(() {
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list[0] = 42;
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});
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Expect.throws(() {
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list.addAll(<int>[42]);
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});
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}
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