dart-sdk/tests/corelib/iterable_single_test.dart
Bob Nystrom edee53f93d Bring back the deleted 1.0 corelib tests.
What is dead may never die.

Change-Id: I80ef766b8ce2b6e1416df8e1f9b91fb74169dc79
Reviewed-on: https://dart-review.googlesource.com/7483
Reviewed-by: William Hesse <whesse@google.com>
2017-09-21 18:29:40 +00:00

31 lines
1.1 KiB
Dart

// Copyright (c) 2012, 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<int> list1a = <int>[1];
List<int> list1b = <int>[1, 2, 3];
List<int> list1c = <int>[];
List<int> list2a = const <int>[5];
List<int> list2b = const <int>[4, 5];
List<int> list2c = const <int>[];
Set<int> set1 = new Set<int>();
set1..add(22);
Set set2 = new Set();
set2..add(11)..add(12)..add(13);
Set set3 = new Set();
Expect.equals(1, list1a.single);
Expect.throws(() => list1b.single, (e) => e is StateError);
Expect.throws(() => list1c.single, (e) => e is StateError);
Expect.equals(5, list2a.single);
Expect.throws(() => list2b.single, (e) => e is StateError);
Expect.throws(() => list2c.single, (e) => e is StateError);
Expect.equals(22, set1.single);
Expect.throws(() => set2.single, (e) => e is StateError);
Expect.throws(() => set3.single, (e) => e is StateError);
}