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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"; import "dart:math" show pow, log; void main() { const String oneByteWhiteSpace = "\x09\x0a\x0b\x0c\x0d\x20" "\x85" //# 01: ok "\xa0"; const String whiteSpace = "\$oneByteWhiteSpace\u1680" "\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a" "\u2028\u2029\u202f\u205f\u3000\ufeff"; var digits = "0123456789abcdefghijklmnopqrstuvwxyz"; var zeros = "0" * 64; void testParse(int result, String radixString, int radix) { var m = "\$radixString/\$radix->\$result"; Expect.equals( result, int.parse(radixString.toLowerCase(), radix: radix), m); Expect.equals( result, int.parse(radixString.toUpperCase(), radix: radix), m); Expect.equals(result, int.parse(" \$radixString", radix: radix), m); Expect.equals(result, int.parse("\$radixString ", radix: radix), m); Expect.equals(result, int.parse(" \$radixString ", radix: radix), m); Expect.equals(result, int.parse("+\$radixString", radix: radix), m); Expect.equals(result, int.parse(" +\$radixString", radix: radix), m); Expect.equals(result, int.parse("+\$radixString ", radix: radix), m); Expect.equals(result, int.parse(" +\$radixString ", radix: radix), m); Expect.equals(-result, int.parse("-\$radixString", radix: radix), m); Expect.equals(-result, int.parse(" -\$radixString", radix: radix), m); Expect.equals(-result, int.parse("-\$radixString ", radix: radix), m); Expect.equals(-result, int.parse(" -\$radixString ", radix: radix), m); Expect.equals( result, int.parse("\$oneByteWhiteSpace\$radixString\$oneByteWhiteSpace", radix: radix), m); Expect.equals( -result, int.parse("\$oneByteWhiteSpace-\$radixString\$oneByteWhiteSpace", radix: radix), m); Expect.equals(result, int.parse("\$whiteSpace\$radixString\$whiteSpace", radix: radix), m); Expect.equals(-result, int.parse("\$whiteSpace-\$radixString\$whiteSpace", radix: radix), m); Expect.equals(result, int.parse("\$zeros\$radixString", radix: radix), m); Expect.equals(result, int.parse("+\$zeros\$radixString", radix: radix), m); Expect.equals(-result, int.parse("-\$zeros\$radixString", radix: radix), m); } final max = 9223372036854775807; for (int i = 2; i <= 36; i++) { // //# 02: ok // Test with bignums. // //# 02: continued final n = (log(max) / log(i)).truncate(); // //# 02: continued var digit = digits[i - 1]; // //# 02: continued testParse(pow(i, n) - 1, digit * n, i); // //# 02: continued testParse(0, zeros, i); // //# 02: continued } // //# 02: continued // Big number. Expect.equals(9223372036854775807, int.parse("9223372036854775807")); Expect.equals(-9223372036854775808, int.parse("-9223372036854775808")); }