| /* |
| * 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. |
| */ |
| /** |
| * @assertion Iterable<E> skipWhile(bool test(E value)) |
| * Returns an Iterable that skips leading elements while test is satisfied. |
| * @description Checks that all first elements that satisfy test are removed, |
| * and elements after that are retained. |
| * @author msyabro |
| */ |
| |
| import "dart:typed_data"; |
| import "../../../Utils/expect.dart"; |
| |
| void check(List<int> list, bool test(int element)) { |
| var l = new Int16List.fromList(list); |
| var it0 = l.iterator; |
| var res = l.skipWhile(test); |
| var it = res.iterator; |
| var skipCount = 0; |
| |
| // skip manually |
| var hasNext0; |
| while ((hasNext0 = it0.moveNext()) && test(it0.current)) { |
| skipCount++; |
| } |
| |
| // check that the rest of a0 is identical to a |
| var len = 0; |
| for (;;) { |
| var hasNext = it.moveNext(); |
| Expect.equals(hasNext0, hasNext); |
| if (!hasNext0) break; |
| len++; |
| Expect.equals(it0.current, it.current); |
| hasNext0 = it0.moveNext(); |
| } |
| Expect.equals(l.length - skipCount, len); |
| } |
| |
| main() { |
| var a0 = [1, 3, 7, 4, 5, 6]; |
| check(a0, (var element) => element == 1); |
| check(a0, (var element) => true); |
| check(a0, (var element) => false); |
| check(a0, (var element) => element > 4); |
| check(a0, (var element) => element < 4); |
| check(a0, (var element) => element == 4); |
| } |