dart-sdk/tests/corelib_2/string_to_lower_case_test.dart
Leaf Petersen b101a7d002 Add language versions to _2 test libraries
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548
Reviewed-by: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Leaf Petersen <leafp@google.com>
2021-04-26 17:58:57 +00:00

22 lines
747 B
Dart

// Copyright (c) 2014, 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 = 2.9
import "package:expect/expect.dart";
void testOneByteSting() {
// Compare one-byte-string toLowerCase with a two-byte-string toLowerCase.
var oneByteString =
new String.fromCharCodes(new List.generate(256, (i) => i)).toLowerCase();
var twoByteString =
new String.fromCharCodes(new List.generate(512, (i) => i)).toLowerCase();
Expect.isTrue(twoByteString.codeUnits.any((u) => u >= 256));
Expect.equals(oneByteString, twoByteString.substring(0, 256));
}
void main() {
testOneByteSting();
}