| /* |
| * 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 skipped, |
| * and elements after that are retained. |
| * @author msyabro |
| */ |
| |
| import "dart:typed_data"; |
| import "../../../Utils/expect.dart"; |
| |
| void check(List<double> list, bool test(double element)) { |
| var l = new Float32List.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 = [1.0, 3.0, 7.0, 4.0, 5.0, 6.0]; |
| check(a0, (var element) => element == 1.0); |
| check(a0, (var element) => true); |
| check(a0, (var element) => false); |
| check(a0, (var element) => element > 4.0); |
| check(a0, (var element) => element < 4.0); |
| check(a0, (var element) => element == 4.0); |
| } |