| // 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 = "$oneByteWhiteSpace\u1680" |
| "\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a" |
| "\u2028\u2029\u202f\u205f\u3000\ufeff"; |
| |
| var digits = "0123456789abcdefghijklmnopqrstuvwxyz"; |
| var zeros = "0" * 64; |
| |
| for (int i = 0; i < whiteSpace.length; i++) { |
| var ws = whiteSpace[i]; |
| Expect.equals(0, int.parse("${ws}0${ws}", radix: 2)); |
| } |
| |
| void testParse(int result, String radixString, int radix) { |
| var m = "$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$radixString", radix: radix), m); |
| } |
| |
| for (int r = 2; r <= 36; r++) { |
| for (int i = 0; i <= r * r; i++) { |
| String radixString = i.toRadixString(r); |
| testParse(i, radixString, r); |
| } |
| } |
| |
| final max = 0x1FFFFFFFFFFFFF; |
| for (int i = 2; i <= 36; i++) { // //# 02: ok |
| // Test with bignums. // //# 02: continued |
| final n = (log(max) / log(i)).truncate(); // //# 02: continued |
| var digit = digits[i - 1]; // //# 02: continued |
| testParse(pow(i, n) - 1, digit * n, i); // //# 02: continued |
| testParse(0, zeros, i); // //# 02: continued |
| } // //# 02: continued |
| |
| // Allow both upper- and lower-case letters. |
| Expect.equals(0xABCD, int.parse("ABCD", radix: 16)); |
| Expect.equals(0xABCD, int.parse("abcd", radix: 16)); |
| Expect.equals(15628859, int.parse("09azAZ", radix: 36)); |
| // Big-ish number. (2^53) |
| Expect.equals(9007199254740991, int.parse("9007199254740991")); |
| Expect.equals(-9007199254740991, int.parse("-9007199254740991")); |
| Expect.equals(-9223372036854775808, int.parse("-9223372036854775808")); |
| // Allow whitespace before and after the number. |
| Expect.equals(1, int.parse(" 1", radix: 2)); |
| Expect.equals(1, int.parse("1 ", radix: 2)); |
| Expect.equals(1, int.parse(" 1 ", radix: 2)); |
| Expect.equals(1, int.parse("\n1", radix: 2)); |
| Expect.equals(1, int.parse("1\n", radix: 2)); |
| Expect.equals(1, int.parse("\n1\n", radix: 2)); |
| Expect.equals(1, int.parse("+1", radix: 2)); |
| |
| void testFails(String source, int radix) { |
| Expect.throws(() { |
| throw int.parse(source, radix: radix, onError: (s) { |
| throw "FAIL"; |
| }); |
| }, isFail, "$source/$radix"); |
| Expect.equals(-999, int.parse(source, radix: radix, onError: (s) => -999)); |
| } |
| |
| for (int i = 2; i < 36; i++) { |
| var char = i.toRadixString(36); |
| testFails(char.toLowerCase(), i); |
| testFails(char.toUpperCase(), i); |
| } |
| testFails("", 2); |
| testFails("+ 1", 2); // No space between sign and digits. |
| testFails("- 1", 2); // No space between sign and digits. |
| testFails("0x", null); |
| for (int i = 2; i <= 33; i++) { |
| // No 0x specially allowed. |
| // At radix 34 and above, "x" is a valid digit. |
| testFails("0x10", i); |
| } |
| |
| testBadTypes(var source, var radix) { |
| Expect.throwsTypeError(() => int.parse(source, radix: radix, onError: (s) => 0)); //# badTypes: ok |
| } |
| |
| testBadTypes(9, 10); |
| testBadTypes(true, 10); |
| testBadTypes("0", true); |
| testBadTypes("0", "10"); |
| |
| testBadArguments(String source, int radix) { |
| // If the types match, it should be an ArgumentError of some sort. |
| Expect.throwsArgumentError( |
| () => int.parse(source, radix: radix, onError: (s) => 0)); |
| } |
| |
| testBadArguments("0", -1); |
| testBadArguments("0", 0); |
| testBadArguments("0", 1); |
| testBadArguments("0", 37); |
| |
| // See also int_parse_radix_bad_handler_test.dart |
| } |
| |
| bool isFail(e) => e == "FAIL"; |