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>
95 lines
2.5 KiB
Dart
95 lines
2.5 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.
|
|
|
|
import "package:expect/expect.dart";
|
|
|
|
main() {
|
|
test(String s, List<int> expectedRunes) {
|
|
Runes runes = s.runes;
|
|
Expect.identical(s, runes.string);
|
|
|
|
// for-in
|
|
var res = [];
|
|
for (int rune in runes) {
|
|
res.add(rune);
|
|
}
|
|
Expect.listEquals(expectedRunes, res);
|
|
|
|
// manual iteration, backwards.
|
|
res = [];
|
|
for (var it = runes.iterator..reset(s.length); it.movePrevious();) {
|
|
res.add(it.current);
|
|
}
|
|
Expect.listEquals(expectedRunes.reversed.toList(), res);
|
|
|
|
// Setting rawIndex.
|
|
RuneIterator it = runes.iterator;
|
|
it.rawIndex = 1;
|
|
Expect.equals(expectedRunes[1], it.current);
|
|
|
|
it = runes.iterator;
|
|
it.moveNext();
|
|
Expect.equals(0, it.rawIndex);
|
|
it.moveNext();
|
|
Expect.equals(1, it.rawIndex);
|
|
it.moveNext();
|
|
Expect.isTrue(1 < it.rawIndex);
|
|
it.rawIndex = 1;
|
|
Expect.equals(1, it.rawIndex);
|
|
Expect.equals(expectedRunes[1], it.current);
|
|
|
|
// Reset, moveNext.
|
|
it.reset(1);
|
|
Expect.equals(-1, it.rawIndex);
|
|
Expect.equals(-1, it.current);
|
|
it.moveNext();
|
|
Expect.equals(1, it.rawIndex);
|
|
Expect.equals(expectedRunes[1], it.current);
|
|
|
|
// Reset, movePrevious.
|
|
it.reset(1);
|
|
Expect.equals(-1, it.rawIndex);
|
|
Expect.equals(-1, it.current);
|
|
it.movePrevious();
|
|
Expect.equals(0, it.rawIndex);
|
|
Expect.equals(expectedRunes[0], it.current);
|
|
|
|
// .map
|
|
Expect.listEquals(
|
|
expectedRunes.map((x) => x.toRadixString(16)).toList(),
|
|
runes.map((x) => x.toRadixString(16)).toList(),
|
|
);
|
|
}
|
|
|
|
// First character must be single-code-unit for test.
|
|
test("abc", [0x61, 0x62, 0x63]);
|
|
test("\x00\u0000\u{000000}", [0, 0, 0]);
|
|
test("\u{ffff}\u{10000}\u{10ffff}", [0xffff, 0x10000, 0x10ffff]);
|
|
String string = new String.fromCharCodes([
|
|
0xdc00,
|
|
0xd800,
|
|
61,
|
|
0xd800,
|
|
0xdc00,
|
|
62,
|
|
0xdc00,
|
|
0xd800,
|
|
]);
|
|
test(string, [0xdc00, 0xd800, 61, 0x10000, 62, 0xdc00, 0xd800]);
|
|
|
|
// Setting position in the middle of a surrogate pair is not allowed.
|
|
var r = new Runes("\u{10000}");
|
|
var it = r.iterator;
|
|
it.moveNext();
|
|
Expect.equals(0x10000, it.current);
|
|
|
|
// Setting rawIndex inside surrogate pair.
|
|
Expect.throws(() {
|
|
it.rawIndex = 1;
|
|
}, (e) => e is Error);
|
|
Expect.throws(() {
|
|
it.reset(1);
|
|
}, (e) => e is Error);
|
|
}
|