Joshua Litt
20faaa5d94
Change-Id: Ib18f554c1076f27a3f7c0df5a36410da41a1f467 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/148784 Reviewed-by: Paul Berry <paulberry@google.com> Reviewed-by: Sigmund Cherem <sigmund@google.com>
66 lines
1.8 KiB
Dart
66 lines
1.8 KiB
Dart
// Copyright (c) 2011, 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.
|
|
|
|
// @dart = 2.7
|
|
|
|
import 'package:_fe_analyzer_shared/src/util/link.dart' show Link;
|
|
import "package:expect/expect.dart";
|
|
import '../helpers/link_helper.dart';
|
|
|
|
main() {
|
|
test(const Link<Comparable>().prepend('three').prepend(2).prepend('one'),
|
|
['one', 2, 'three']);
|
|
test(const Link<Comparable>().prepend(3).prepend('two').prepend(1),
|
|
[1, 'two', 3]);
|
|
test(const Link<String>().prepend('single'), ['single']);
|
|
test(const Link(), []);
|
|
testFromList([]);
|
|
testFromList([0]);
|
|
testFromList([0, 1]);
|
|
testFromList([0, 1, 2]);
|
|
testFromList([0, 1, 2, 3]);
|
|
testFromList([0, 1, 2, 3, 4]);
|
|
testFromList([0, 1, 2, 3, 4, 5]);
|
|
testSkip();
|
|
}
|
|
|
|
testFromList(List list) {
|
|
test(LinkFromList(list), list);
|
|
}
|
|
|
|
test(Link link, List list) {
|
|
Expect.equals(list.isEmpty, link.isEmpty);
|
|
int i = 0;
|
|
for (var element in link.toList()) {
|
|
Expect.equals(list[i++], element);
|
|
}
|
|
Expect.equals(list.length, i);
|
|
i = 0;
|
|
for (var element in link) {
|
|
Expect.equals(list[i++], element);
|
|
}
|
|
Expect.equals(list.length, i);
|
|
i = 0;
|
|
for (; !link.isEmpty; link = link.tail) {
|
|
Expect.equals(list[i++], link.head);
|
|
}
|
|
Expect.equals(list.length, i);
|
|
Expect.isTrue(link.isEmpty);
|
|
}
|
|
|
|
testSkip() {
|
|
var nonEmptyLink = LinkFromList([0, 1, 2, 3, 4, 5]);
|
|
for (int i = 0; i < 5; i++) {
|
|
var link = nonEmptyLink.skip(i);
|
|
Expect.isFalse(link.isEmpty);
|
|
Expect.equals(i, link.head);
|
|
}
|
|
Expect.isTrue(nonEmptyLink.skip(6).isEmpty);
|
|
Expect.throws(() => nonEmptyLink.skip(7), (e) => e is RangeError);
|
|
|
|
var emptyLink = const Link();
|
|
Expect.isTrue(emptyLink.skip(0).isEmpty);
|
|
Expect.throws(() => emptyLink.skip(1), (e) => e is RangeError);
|
|
}
|