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// Copyright (c) 2012, 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 that we accept radix 2 to 36 and that we use lower-case
// letters.
var expected = [
'0',
'1',
'2',
'3',
'4',
'5',
'6',
'7',
'8',
'9',
'a',
'b',
'c',
'd',
'e',
'f',
'g',
'h',
'i',
'j',
'k',
'l',
'm',
'n',
'o',
'p',
'q',
'r',
's',
't',
'u',
'v',
'w',
'x',
'y',
'z'
];
for (var radix = 2; radix <= 36; radix++) {
for (var i = 0; i < radix; i++) {
Expect.equals(expected[i], i.toRadixString(radix));
}
}
var illegalRadices = [-1, 0, 1, 37];
for (var radix in illegalRadices) {
try {
42.toRadixString(radix);
Expect.fail("Exception expected");
} on ArgumentError catch (e) {
// Nothing to do.
}
}
// Try large numbers (regression test for issue 15316).
var bignums = [
0x80000000,
0x100000000,
0x10000000000000,
0x10000000000001, // 53 significant bits.
0x20000000000000,
0x20000000000002,
0x1000000000000000,
0x1000000000000100,
0x2000000000000000,
0x2000000000000200,
0x8000000000000000, //# 01: ok
0x8000000000000800, //# 02: ok
];
for (var bignum in bignums) {
for (int radix = 2; radix <= 36; radix++) {
String digits = bignum.toRadixString(radix);
int result = int.parse(digits, radix: radix);
Expect.equals(
bignum, result, "${bignum.toRadixString(16)} -> $digits/$radix");
}
}
}