mirror of
https://github.com/dart-lang/sdk
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a4381f127c
The library code and the intrisic code disagreed about the capacity of the result digits array. Compare similar adjustment for <<. TEST=ci Change-Id: I81395a242965d53de3a30f87637a6f1588300969 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/325122 Commit-Queue: Ryan Macnak <rmacnak@google.com> Reviewed-by: Siva Annamalai <asiva@google.com>
143 lines
5.4 KiB
Dart
143 lines
5.4 KiB
Dart
// Copyright (c) 2017, 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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// Testing Bigints with and without intrinsics.
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// VMOptions=--intrinsify --no-enable-asserts
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// VMOptions=--intrinsify --enable-asserts
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// VMOptions=--no-intrinsify --enable-asserts
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// VMOptions=--optimization-counter-threshold=20 --no-background-compilation
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// VMOptions=--runtime_allocate_old
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// VMOptions=--runtime_allocate_spill_tlab
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import "package:expect/expect.dart";
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import 'dart:math' show pow;
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void testParseRadix() {
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bool checkedMode = false;
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assert((checkedMode = true));
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const String oneByteWhiteSpace = "\x09\x0a\x0b\x0c\x0d\x20"
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// "\x85" // Might make troubles on some systems. Was marked as OK test.
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"\xa0";
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const String whiteSpace = "$oneByteWhiteSpace\u1680"
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"\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a"
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"\u2028\u2029\u202f\u205f\u3000\ufeff";
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var digits = "0123456789abcdefghijklmnopqrstuvwxyz";
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var zeros = "0" * 64;
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for (int i = 0; i < whiteSpace.length; i++) {
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var ws = whiteSpace[i];
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Expect.equals(BigInt.zero, BigInt.parse("${ws}0${ws}", radix: 2));
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}
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void testParse(BigInt result, String radixString, int radix) {
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var m = "$radixString/$radix->$result";
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Expect.equals(
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result, BigInt.parse(radixString.toLowerCase(), radix: radix), m);
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Expect.equals(
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result, BigInt.parse(radixString.toUpperCase(), radix: radix), m);
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Expect.equals(result, BigInt.parse(" $radixString", radix: radix), m);
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Expect.equals(result, BigInt.parse("$radixString ", radix: radix), m);
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Expect.equals(result, BigInt.parse(" $radixString ", radix: radix), m);
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Expect.equals(result, BigInt.parse("+$radixString", radix: radix), m);
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Expect.equals(result, BigInt.parse(" +$radixString", radix: radix), m);
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Expect.equals(result, BigInt.parse("+$radixString ", radix: radix), m);
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Expect.equals(result, BigInt.parse(" +$radixString ", radix: radix), m);
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Expect.equals(-result, BigInt.parse("-$radixString", radix: radix), m);
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Expect.equals(-result, BigInt.parse(" -$radixString", radix: radix), m);
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Expect.equals(-result, BigInt.parse("-$radixString ", radix: radix), m);
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Expect.equals(-result, BigInt.parse(" -$radixString ", radix: radix), m);
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Expect.equals(
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result,
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BigInt.parse("$oneByteWhiteSpace$radixString$oneByteWhiteSpace",
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radix: radix),
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m);
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Expect.equals(
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-result,
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BigInt.parse("$oneByteWhiteSpace-$radixString$oneByteWhiteSpace",
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radix: radix),
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m);
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Expect.equals(result,
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BigInt.parse("$whiteSpace$radixString$whiteSpace", radix: radix), m);
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Expect.equals(-result,
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BigInt.parse("$whiteSpace-$radixString$whiteSpace", radix: radix), m);
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Expect.equals(result, BigInt.parse("$zeros$radixString", radix: radix), m);
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Expect.equals(result, BigInt.parse("+$zeros$radixString", radix: radix), m);
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Expect.equals(
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-result, BigInt.parse("-$zeros$radixString", radix: radix), m);
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}
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for (int r = 2; r <= 36; r++) {
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for (var i = BigInt.zero; i <= new BigInt.from(r * r); i += BigInt.one) {
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String radixString = i.toRadixString(r);
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testParse(i, radixString, r);
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}
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}
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for (int i = 2; i <= 36; i++) {
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var digit = digits[i - 1];
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testParse(new BigInt.from(i).pow(64) - BigInt.one, digit * 64, i);
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testParse(BigInt.zero, zeros, i);
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}
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// Allow both upper- and lower-case letters.
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Expect.equals(new BigInt.from(0xABCD), BigInt.parse("ABCD", radix: 16));
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Expect.equals(new BigInt.from(0xABCD), BigInt.parse("abcd", radix: 16));
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Expect.equals(new BigInt.from(15628859), BigInt.parse("09azAZ", radix: 36));
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Expect.equals(
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(new BigInt.from(0x12345678) << 96) +
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(new BigInt.from(0x12345678) << 64) +
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(new BigInt.from(0x12345678) << 32) +
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new BigInt.from(0x12345678),
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BigInt.parse("0x12345678123456781234567812345678"));
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// Allow whitespace before and after the number.
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Expect.equals(BigInt.one, BigInt.parse(" 1", radix: 2));
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Expect.equals(BigInt.one, BigInt.parse("1 ", radix: 2));
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Expect.equals(BigInt.one, BigInt.parse(" 1 ", radix: 2));
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Expect.equals(BigInt.one, BigInt.parse("\n1", radix: 2));
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Expect.equals(BigInt.one, BigInt.parse("1\n", radix: 2));
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Expect.equals(BigInt.one, BigInt.parse("\n1\n", radix: 2));
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Expect.equals(BigInt.one, BigInt.parse("+1", radix: 2));
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void testFails(String source, int? radix) {
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Expect.throws(() {
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BigInt.parse(source, radix: radix);
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}, (e) => e is FormatException, "$source/$radix");
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}
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for (int i = 2; i < 36; i++) {
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var char = i.toRadixString(36);
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testFails(char.toLowerCase(), i);
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testFails(char.toUpperCase(), i);
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}
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testFails("", 2);
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testFails("+ 1", 2); // No space between sign and digits.
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testFails("- 1", 2); // No space between sign and digits.
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testFails("0x", null);
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for (int i = 2; i <= 33; i++) {
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// No 0x specially allowed.
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// At radix 34 and above, "x" is a valid digit.
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testFails("0x10", i);
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}
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testBadArguments(String source, int radix) {
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// If the types match, it should be an ArgumentError of some sort.
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Expect.throws(
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() => BigInt.parse(source, radix: radix), (e) => e is ArgumentError);
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}
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testBadArguments("0", -1);
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testBadArguments("0", 0);
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testBadArguments("0", 1);
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testBadArguments("0", 37);
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}
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main() {
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testParseRadix();
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}
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