Robert Nystrom
0906af6d2f
I also regenerated the static error expectations (see #57042 for context). Change-Id: Ia0ca22604a0dd422cc265a46845afc43f551fe38 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/394572 Commit-Queue: Lasse Nielsen <lrn@google.com> Reviewed-by: Lasse Nielsen <lrn@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
106 lines
3.4 KiB
Dart
106 lines
3.4 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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import "package:expect/expect.dart";
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main() {
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List<int> list1 = <int>[1, 2, 3];
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List<int> list2 = const <int>[4, 5];
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List<String> list3 = <String>[];
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Set<int> set1 = new Set<int>();
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set1
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..add(11)
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..add(12)
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..add(13);
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Set set2 = new Set();
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Iterable<int> takeWhileFalse = list1.takeWhile((x) => false);
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Iterator<int> it = takeWhileFalse.iterator;
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Expect.isFalse(it.moveNext());
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Iterable<int> takeWhileOdd = list1.takeWhile((x) => x.isOdd);
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it = takeWhileOdd.iterator;
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Expect.isTrue(it.moveNext());
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Expect.equals(1, it.current);
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Expect.isFalse(it.moveNext());
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Iterable<int> takeWhileLessThan3 = list1.takeWhile((x) => x < 3);
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it = takeWhileLessThan3.iterator;
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Expect.isTrue(it.moveNext());
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Expect.equals(1, it.current);
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Expect.isTrue(it.moveNext());
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Expect.equals(2, it.current);
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Expect.isFalse(it.moveNext());
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Iterable<int> takeEverything = list1.takeWhile((x) => true);
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it = takeEverything.iterator;
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Expect.isTrue(it.moveNext());
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Expect.equals(1, it.current);
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Expect.isTrue(it.moveNext());
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Expect.equals(2, it.current);
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Expect.isTrue(it.moveNext());
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Expect.equals(3, it.current);
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Expect.isFalse(it.moveNext());
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Iterable<int> takeWhileEven = list1.takeWhile((x) => x.isEven);
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it = takeWhileFalse.iterator;
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Expect.isFalse(it.moveNext());
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takeWhileFalse = list2.takeWhile((x) => false);
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it = takeWhileFalse.iterator;
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Expect.isFalse(it.moveNext());
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takeWhileEven = list2.takeWhile((x) => x.isEven);
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it = takeWhileEven.iterator;
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Expect.isTrue(it.moveNext());
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Expect.equals(4, it.current);
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Expect.isFalse(it.moveNext());
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takeEverything = list2.takeWhile((x) => true);
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it = takeEverything.iterator;
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Expect.isTrue(it.moveNext());
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Expect.equals(4, it.current);
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Expect.isTrue(it.moveNext());
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Expect.equals(5, it.current);
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Expect.isFalse(it.moveNext());
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Iterable<String> takeWhileFalse2 = list3.takeWhile((x) => false);
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Iterator<String> it2 = takeWhileFalse2.iterator;
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Expect.isFalse(it2.moveNext());
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Iterable<String> takeEverything2 = list3.takeWhile((x) => true);
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it2 = takeEverything2.iterator;
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Expect.isFalse(it2.moveNext());
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takeWhileFalse = set1.takeWhile((x) => false);
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it = takeWhileFalse.iterator;
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Expect.isFalse(it.moveNext());
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takeEverything = set1.takeWhile((x) => true);
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List<int> copied = takeEverything.toList();
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Expect.equals(3, copied.length);
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Expect.isTrue(set1.contains(copied[0]));
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Expect.isTrue(set1.contains(copied[1]));
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Expect.isTrue(set1.contains(copied[1]));
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Expect.isTrue(copied[0] != copied[1]);
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Expect.isTrue(copied[0] != copied[2]);
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Expect.isTrue(copied[1] != copied[2]);
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it = takeEverything.iterator;
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Expect.isTrue(it.moveNext());
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Expect.isTrue(it.current != null);
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Expect.isTrue(it.moveNext());
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Expect.isTrue(it.current != null);
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Expect.isTrue(it.moveNext());
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Expect.isTrue(it.current != null);
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Expect.isFalse(it.moveNext());
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var dynamicTakeWhileFalse = set2.takeWhile((x) => false);
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var dynamicIt = dynamicTakeWhileFalse.iterator;
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Expect.isFalse(dynamicIt.moveNext());
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var dynamicTakeEverything = set2.takeWhile((x) => true);
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dynamicIt = dynamicTakeEverything.iterator;
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Expect.isFalse(dynamicIt.moveNext());
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}
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