blob: 80d30ccbb9e91364e69797213dd29fae92dae8e0 [file] [log] [blame]
// 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,
0x8000000000000800,
0x10000000000000000,
0x10000000000001000,
0x100000000000010000,
0x1000000000000100000,
0x10000000000001000000,
0x100000000000010000000,
0x1000000000000100000000,
0x10000000000001000000000,
];
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");
}
}
}