mirror of
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e7a524e8c4
Change-Id: Ib235c213861f819ed11a887283cad085582eaac7 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/132941 Reviewed-by: Nicholas Shahan <nshahan@google.com> Commit-Queue: Mark Zhou <markzipan@google.com>
113 lines
3.6 KiB
Dart
113 lines
3.6 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..add(11)..add(12)..add(13);
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Set set2 = new Set();
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Iterable<int> skipWhileTrue = list1.skipWhile((x) => true);
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Iterator<int> it = skipWhileTrue.iterator;
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Expect.isFalse(it.moveNext());
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Iterable<int> skipWhileOdd = list1.skipWhile((x) => x.isOdd);
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it = skipWhileOdd.iterator;
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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> skipWhileLessThan3 = list1.skipWhile((x) => x < 3);
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it = skipWhileLessThan3.iterator;
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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> skipWhileFalse = list1.skipWhile((x) => false);
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it = skipWhileFalse.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> skipWhileEven = list1.skipWhile((x) => x.isEven);
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it = skipWhileEven.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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skipWhileTrue = list2.skipWhile((x) => true);
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it = skipWhileTrue.iterator;
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Expect.isFalse(it.moveNext());
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skipWhileEven = list2.skipWhile((x) => x.isEven);
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it = skipWhileEven.iterator;
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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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skipWhileOdd = list2.skipWhile((x) => x.isOdd);
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it = skipWhileOdd.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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skipWhileFalse = list2.skipWhile((x) => false);
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it = skipWhileFalse.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> skipWhileFalse2 = list3.skipWhile((x) => false);
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Iterator<String> it2 = skipWhileFalse2.iterator;
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Expect.isFalse(it2.moveNext());
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Iterable<String> skipWhileTrue2 = list3.skipWhile((x) => true);
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it2 = skipWhileTrue2.iterator;
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Expect.isFalse(it2.moveNext());
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skipWhileTrue = set1.skipWhile((x) => true);
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it = skipWhileTrue.iterator;
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Expect.isFalse(it.moveNext());
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skipWhileFalse = set1.skipWhile((x) => false);
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List<int> copied = skipWhileFalse.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 = skipWhileFalse.iterator;
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Expect.isTrue(it.moveNext());
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Expect.isTrue(it.moveNext());
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Expect.isTrue(it.moveNext());
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Expect.isFalse(it.moveNext());
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var dynamicSkipWhileTrue = set2.skipWhile((x) => true);
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var dynamicIt = dynamicSkipWhileTrue.iterator;
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Expect.isFalse(dynamicIt.moveNext());
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var dynamicSkipWhileFalse = set2.skipWhile((x) => false);
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dynamicIt = dynamicSkipWhileFalse.iterator;
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Expect.isFalse(dynamicIt.moveNext());
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}
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