mirror of
https://github.com/dart-lang/sdk
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284f662022
Change-Id: I764d0457da85b2935e1d83309eab4c4b5b3ea000 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/126204 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Lasse R.H. Nielsen <lrn@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
88 lines
1.7 KiB
Dart
88 lines
1.7 KiB
Dart
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import "package:expect/expect.dart";
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main() {
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// Test that we accept radix 2 to 36 and that we use lower-case
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// letters.
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var expected = [
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'0',
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'1',
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'2',
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'3',
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'4',
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'5',
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'6',
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'7',
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'8',
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'9',
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'a',
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'b',
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'c',
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'd',
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'e',
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'f',
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'g',
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'h',
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'i',
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'j',
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'k',
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'l',
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'm',
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'n',
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'o',
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'p',
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'q',
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'r',
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's',
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't',
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'u',
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'v',
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'w',
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'x',
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'y',
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'z'
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];
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for (var radix = 2; radix <= 36; radix++) {
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for (var i = 0; i < radix; i++) {
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Expect.equals(expected[i], i.toRadixString(radix));
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}
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}
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var illegalRadices = [-1, 0, 1, 37];
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for (var radix in illegalRadices) {
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try {
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42.toRadixString(radix);
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Expect.fail("Exception expected");
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} on ArgumentError catch (e) {
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// Nothing to do.
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}
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}
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// Try large numbers (regression test for issue 15316).
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var bignums = [
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0x80000000,
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0x100000000,
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0x10000000000000,
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0x10000000000001, // 53 significant bits.
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0x20000000000000,
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0x20000000000002,
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0x1000000000000000,
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0x1000000000000100,
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0x2000000000000000,
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0x2000000000000200,
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0x8000000000000000, //# 01: ok
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0x8000000000000800, //# 02: ok
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];
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for (var bignum in bignums) {
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for (int radix = 2; radix <= 36; radix++) {
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String digits = bignum.toRadixString(radix);
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int result = int.parse(digits, radix: radix);
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Expect.equals(
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bignum, result, "${bignum.toRadixString(16)} -> $digits/$radix");
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}
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}
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}
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