dart-sdk/tests/corelib/list_to_string2_test.dart
Riley Porter 4d91dc7a47 [tests] Removing List constructor usage in corelib tests.
Replacing usage of deprecated `new List()` and `new List(x)` in tests
with `List.filled` or `[]` where applicable.

Change-Id: Ie52a1869dfa25e141a8486c02c2d7668e9303ec9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/141022
Reviewed-by: Riley Porter <rileyporter@google.com>
Reviewed-by: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Riley Porter <rileyporter@google.com>
2020-03-30 19:58:08 +00:00

33 lines
868 B
Dart

// Copyright (c) 2013, 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.
import "package:expect/expect.dart";
main() {
List list = [1, 2];
list.add(list);
List list2 = new List.filled(4, null);
list2[0] = 1;
list2[1] = 2;
list2[2] = list2;
list2[3] = list;
Expect.equals("[1, 2, [...]]", list.toString());
Expect.equals("[1, 2, [...], [1, 2, [...]]]", list2.toString());
// Throwing in the middle of a toString does not leave the
// list as being visited.
List list3 = [1, 2, new ThrowOnToString(), 4];
Expect.throws(list3.toString, (e) => e == "Bad!");
list3[2] = 3;
Expect.equals("[1, 2, 3, 4]", list3.toString());
}
class ThrowOnToString {
String toString() {
throw "Bad!";
}
}