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node/test/parallel/test-zlib-crc32.js
Joyee Cheung 2cfabb11e1
zlib: expose zlib.crc32() 
This patch exposes the crc32() function from zlib to user-land.

It computes a 32-bit Cyclic Redundancy Check checksum of `data`. If
`value` is specified, it is used as the starting value of the checksum,
otherwise, 0 is used as the starting value.

```js
const zlib = require('node:zlib');
const { Buffer } = require('node:buffer');

let crc = zlib.crc32('hello');  // 907060870
crc = zlib.crc32('world', crc);  // 4192936109

crc = zlib.crc32(Buffer.from('hello'));  // 907060870
crc = zlib.crc32(Buffer.from('world'), crc);  // 4192936109
```

PR-URL: https://github.com/nodejs/node/pull/52692
Reviewed-By: Yagiz Nizipli <yagiz.nizipli@sentry.io>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
2024-05-02 12:54:46 +00:00

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'use strict';
require('../common');
const zlib = require('zlib');
const assert = require('assert');
const { Buffer } = require('buffer');
// The following test data comes from
// https://github.com/zlib-ng/zlib-ng/blob/5401b24/test/test_crc32.cc
// test_crc32.cc -- crc32 unit test
// Copyright (C) 2019-2021 IBM Corporation
// Authors: Rogerio Alves <rogealve@br.ibm.com>
// Matheus Castanho <msc@linux.ibm.com>
// For conditions of distribution and use, see copyright notice in zlib.h
//
const tests = [
[0x0, 0x0, 0, 0x0],
[0xffffffff, 0x0, 0, 0x0],
[0x0, 0x0, 255, 0x0], /* BZ 174799. */
[0x0, 0x0, 256, 0x0],
[0x0, 0x0, 257, 0x0],
[0x0, 0x0, 32767, 0x0],
[0x0, 0x0, 32768, 0x0],
[0x0, 0x0, 32769, 0x0],
[0x0, '', 0, 0x0],
[0xffffffff, '', 0, 0xffffffff],
[0x0, 'abacus', 6, 0xc3d7115b],
[0x0, 'backlog', 7, 0x269205],
[0x0, 'campfire', 8, 0x22a515f8],
[0x0, 'delta', 5, 0x9643fed9],
[0x0, 'executable', 10, 0xd68eda01],
[0x0, 'file', 4, 0x8c9f3610],
[0x0, 'greatest', 8, 0xc1abd6cd],
[0x0, 'hello', 5, 0x3610a686],
[0x0, 'inverter', 8, 0xc9e962c9],
[0x0, 'jigsaw', 6, 0xce4e3f69],
[0x0, 'karate', 6, 0x890be0e2],
[0x0, 'landscape', 9, 0xc4e0330b],
[0x0, 'machine', 7, 0x1505df84],
[0x0, 'nanometer', 9, 0xd4e19f39],
[0x0, 'oblivion', 8, 0xdae9de77],
[0x0, 'panama', 6, 0x66b8979c],
[0x0, 'quest', 5, 0x4317f817],
[0x0, 'resource', 8, 0xbc91f416],
[0x0, 'secret', 6, 0x5ca2e8e5],
[0x0, 'test', 4, 0xd87f7e0c],
[0x0, 'ultimate', 8, 0x3fc79b0b],
[0x0, 'vector', 6, 0x1b6e485b],
[0x0, 'walrus', 6, 0xbe769b97],
[0x0, 'xeno', 4, 0xe7a06444],
[0x0, 'yelling', 7, 0xfe3944e5],
[0x0, 'zlib', 4, 0x73887d3a],
[0x0, '4BJD7PocN1VqX0jXVpWB', 20, 0xd487a5a1],
[0x0, 'F1rPWI7XvDs6nAIRx41l', 20, 0x61a0132e],
[0x0, 'ldhKlsVkPFOveXgkGtC2', 20, 0xdf02f76],
[0x0, '5KKnGOOrs8BvJ35iKTOS', 20, 0x579b2b0a],
[0x0, '0l1tw7GOcem06Ddu7yn4', 20, 0xf7d16e2d],
[0x0, 'MCr47CjPIn9R1IvE1Tm5', 20, 0x731788f5],
[0x0, 'UcixbzPKTIv0SvILHVdO', 20, 0x7112bb11],
[0x0, 'dGnAyAhRQDsWw0ESou24', 20, 0xf32a0dac],
[0x0, 'di0nvmY9UYMYDh0r45XT', 20, 0x625437bb],
[0x0, '2XKDwHfAhFsV0RhbqtvH', 20, 0x896930f9],
[0x0, 'ZhrANFIiIvRnqClIVyeD', 20, 0x8579a37],
[0x0, 'v7Q9ehzioTOVeDIZioT1', 20, 0x632aa8e0],
[0x0, 'Yod5hEeKcYqyhfXbhxj2', 20, 0xc829af29],
[0x0, 'GehSWY2ay4uUKhehXYb0', 20, 0x1b08b7e8],
[0x0, 'kwytJmq6UqpflV8Y8GoE', 20, 0x4e33b192],
[0x0, '70684206568419061514', 20, 0x59a179f0],
[0x0, '42015093765128581010', 20, 0xcd1013d7],
[0x0, '88214814356148806939', 20, 0xab927546],
[0x0, '43472694284527343838', 20, 0x11f3b20c],
[0x0, '49769333513942933689', 20, 0xd562d4ca],
[0x0, '54979784887993251199', 20, 0x233395f7],
[0x0, '58360544869206793220', 20, 0x2d167fd5],
[0x0, '27347953487840714234', 20, 0x8b5108ba],
[0x0, '07650690295365319082', 20, 0xc46b3cd8],
[0x0, '42655507906821911703', 20, 0xc10b2662],
[0x0, '29977409200786225655', 20, 0xc9a0f9d2],
[0x0, '85181542907229116674', 20, 0x9341357b],
[0x0, '87963594337989416799', 20, 0xf0424937],
[0x0, '21395988329504168551', 20, 0xd7c4c31f],
[0x0, '51991013580943379423', 20, 0xf11edcc4],
[0x0, '*]+@!);({_$;}[_},?{?;(_?,=-][@', 30, 0x40795df4],
[0x0, '_@:_).&(#.[:[{[:)$++-($_;@[)}+', 30, 0xdd61a631],
[0x0, '&[!,[$_==}+.]@!;*(+},[;:)$;)-@', 30, 0xca907a99],
[0x0, ']{.[.+?+[[=;[?}_#&;[=)__$$:+=_', 30, 0xf652deac],
[0x0, '-%.)=/[@].:.(:,()$;=%@-$?]{%+%', 30, 0xaf39a5a9],
[0x0, '+]#$(@&.=:,*];/.!]%/{:){:@(;)$', 30, 0x6bebb4cf],
// eslint-disable-next-line no-template-curly-in-string
[0x0, ')-._.:?[&:.=+}(*$/=!.${;(=$@!}', 30, 0x76430bac],
[0x0, ':(_*&%/[[}+,?#$&*+#[([*-/#;%(]', 30, 0x6c80c388],
[0x0, '{[#-;:$/{)(+[}#]/{&!%(@)%:@-$:', 30, 0xd54d977d],
[0x0, '_{$*,}(&,@.)):=!/%(&(,,-?$}}}!', 30, 0xe3966ad5],
[0x0,
'e$98KNzqaV)Y:2X?]77].{gKRD4G5{mHZk,Z)SpU%L3FSgv!Wb8MLAFdi{+fp)c,@8m6v)yXg@]HBDFk?.4&}g5_udE*JHCiH=aL',
100, 0xe7c71db9],
[0x0,
'r*Fd}ef+5RJQ;+W=4jTR9)R*p!B;]Ed7tkrLi;88U7g@3v!5pk2X6D)vt,.@N8c]@yyEcKi[vwUu@.Ppm@C6%Mv*3Nw}Y,58_aH)',
100, 0xeaa52777],
[0x0,
'h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&',
100, 0xcd472048],
[0x7a30360d, 'abacus', 6, 0xf8655a84],
[0x6fd767ee, 'backlog', 7, 0x1ed834b1],
[0xefeb7589, 'campfire', 8, 0x686cfca],
[0x61cf7e6b, 'delta', 5, 0x1554e4b1],
[0xdc712e2, 'executable', 10, 0x761b4254],
[0xad23c7fd, 'file', 4, 0x7abdd09b],
[0x85cb2317, 'greatest', 8, 0x4ba91c6b],
[0x9eed31b0, 'inverter', 8, 0xd5e78ba5],
[0xb94f34ca, 'jigsaw', 6, 0x23649109],
[0xab058a2, 'karate', 6, 0xc5591f41],
[0x5bff2b7a, 'landscape', 9, 0xf10eb644],
[0x605c9a5f, 'machine', 7, 0xbaa0a636],
[0x51bdeea5, 'nanometer', 9, 0x6af89afb],
[0x85c21c79, 'oblivion', 8, 0xecae222b],
[0x97216f56, 'panama', 6, 0x47dffac4],
[0x18444af2, 'quest', 5, 0x70c2fe36],
[0xbe6ce359, 'resource', 8, 0x1471d925],
[0x843071f1, 'secret', 6, 0x50c9a0db],
[0xf2480c60, 'ultimate', 8, 0xf973daf8],
[0x2d2feb3d, 'vector', 6, 0x344ac03d],
[0x7490310a, 'walrus', 6, 0x6d1408ef],
[0x97d247d4, 'xeno', 4, 0xe62670b5],
[0x93cf7599, 'yelling', 7, 0x1b36da38],
[0x73c84278, 'zlib', 4, 0x6432d127],
[0x228a87d1, '4BJD7PocN1VqX0jXVpWB', 20, 0x997107d0],
[0xa7a048d0, 'F1rPWI7XvDs6nAIRx41l', 20, 0xdc567274],
[0x1f0ded40, 'ldhKlsVkPFOveXgkGtC2', 20, 0xdcc63870],
[0xa804a62f, '5KKnGOOrs8BvJ35iKTOS', 20, 0x6926cffd],
[0x508fae6a, '0l1tw7GOcem06Ddu7yn4', 20, 0xb52b38bc],
[0xe5adaf4f, 'MCr47CjPIn9R1IvE1Tm5', 20, 0xf83b8178],
[0x67136a40, 'UcixbzPKTIv0SvILHVdO', 20, 0xc5213070],
[0xb00c4a10, 'dGnAyAhRQDsWw0ESou24', 20, 0xbc7648b0],
[0x2e0c84b5, 'di0nvmY9UYMYDh0r45XT', 20, 0xd8123a72],
[0x81238d44, '2XKDwHfAhFsV0RhbqtvH', 20, 0xd5ac5620],
[0xf853aa92, 'ZhrANFIiIvRnqClIVyeD', 20, 0xceae099d],
[0x5a692325, 'v7Q9ehzioTOVeDIZioT1', 20, 0xb07d2b24],
[0x3275b9f, 'Yod5hEeKcYqyhfXbhxj2', 20, 0x24ce91df],
[0x38371feb, 'GehSWY2ay4uUKhehXYb0', 20, 0x707b3b30],
[0xafc8bf62, 'kwytJmq6UqpflV8Y8GoE', 20, 0x16abc6a9],
[0x9b07db73, '70684206568419061514', 20, 0xae1fb7b7],
[0xe75b214, '42015093765128581010', 20, 0xd4eecd2d],
[0x72d0fe6f, '88214814356148806939', 20, 0x4660ec7],
[0xf857a4b1, '43472694284527343838', 20, 0xfd8afdf7],
[0x54b8e14, '49769333513942933689', 20, 0xc6d1b5f2],
[0xd6aa5616, '54979784887993251199', 20, 0x32476461],
[0x11e63098, '58360544869206793220', 20, 0xd917cf1a],
[0xbe92385, '27347953487840714234', 20, 0x4ad14a12],
[0x49511de0, '07650690295365319082', 20, 0xe37b5c6c],
[0x3db13bc1, '42655507906821911703', 20, 0x7cc497f1],
[0xbb899bea, '29977409200786225655', 20, 0x99781bb2],
[0xf6cd9436, '85181542907229116674', 20, 0x132256a1],
[0x9109e6c3, '87963594337989416799', 20, 0xbfdb2c83],
[0x75770fc, '21395988329504168551', 20, 0x8d9d1e81],
[0x69b1d19b, '51991013580943379423', 20, 0x7b6d4404],
[0xc6132975, '*]+@!);({_$;}[_},?{?;(_?,=-][@', 30, 0x8619f010],
[0xd58cb00c, '_@:_).&(#.[:[{[:)$++-($_;@[)}+', 30, 0x15746ac3],
[0xb63b8caa, '&[!,[$_==}+.]@!;*(+},[;:)$;)-@', 30, 0xaccf812f],
[0x8a45a2b8, ']{.[.+?+[[=;[?}_#&;[=)__$$:+=_', 30, 0x78af45de],
[0xcbe95b78, '-%.)=/[@].:.(:,()$;=%@-$?]{%+%', 30, 0x25b06b59],
[0x4ef8a54b, '+]#$(@&.=:,*];/.!]%/{:){:@(;)$', 30, 0x4ba0d08f],
// eslint-disable-next-line no-template-curly-in-string
[0x76ad267a, ')-._.:?[&:.=+}(*$/=!.${;(=$@!}', 30, 0xe26b6aac],
[0x569e613c, ':(_*&%/[[}+,?#$&*+#[([*-/#;%(]', 30, 0x7e2b0a66],
[0x36aa61da, '{[#-;:$/{)(+[}#]/{&!%(@)%:@-$:', 30, 0xb3430dc7],
[0xf67222df, '_{$*,}(&,@.)):=!/%(&(,,-?$}}}!', 30, 0x626c17a],
[0x74b34fd3,
'e$98KNzqaV)Y:2X?]77].{gKRD4G5{mHZk,Z)SpU%L3FSgv!Wb8MLAFdi{+fp)c,@8m6v)yXg@]HBDFk?.4&}g5_udE*JHCiH=aL',
100, 0xccf98060],
[0x351fd770,
'r*Fd}ef+5RJQ;+W=4jTR9)R*p!B;]Ed7tkrLi;88U7g@3v!5pk2X6D)vt,.@N8c]@yyEcKi[vwUu@.Ppm@C6%Mv*3Nw}Y,58_aH)',
100, 0xd8b95312],
[0xc45aef77,
'h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&',
100, 0xbb1c9912],
[0xc45aef77,
'h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&' +
'h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&' +
'h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&' +
'h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&' +
'h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&' +
'h{bcmdC+a;t+Cf{6Y_dFq-{X4Yu&7uNfVDh?q&_u.UWJU],-GiH7ADzb7-V.Q%4=+v!$L9W+T=bP]$_:]Vyg}A.ygD.r;h-D]m%&',
600, 0x888AFA5B],
];
for (const [ crc, data, len, expected ] of tests) {
if (data === 0) {
continue;
}
const buf = Buffer.from(data, 'utf8');
assert.strictEqual(buf.length, len);
assert.strictEqual(zlib.crc32(buf, crc), expected,
`crc32('${data}', ${crc}) in buffer is not ${expected}`);
assert.strictEqual(zlib.crc32(buf.toString(), crc), expected,
`crc32('${data}', ${crc}) in string is not ${expected}`);
if (crc === 0) {
assert.strictEqual(zlib.crc32(buf), expected,
`crc32('${data}') in buffer is not ${expected}`);
assert.strictEqual(zlib.crc32(buf.toString()), expected,
`crc32('${data}') in string is not ${expected}`);
}
}
[undefined, null, true, 1, () => {}, {}].forEach((invalid) => {
assert.throws(() => { zlib.crc32(invalid); }, { code: 'ERR_INVALID_ARG_TYPE' });
});
[null, true, () => {}, {}].forEach((invalid) => {
assert.throws(() => { zlib.crc32('test', invalid); }, { code: 'ERR_INVALID_ARG_TYPE' });
});
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