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ascii85_test.ts
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ascii85_test.ts
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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import { assertEquals } from "../assert/mod.ts";
import { Ascii85Standard, decodeAscii85, encodeAscii85 } from "./ascii85.ts";
type TestCases = Partial<{ [index in Ascii85Standard]: string[][] }>;
const utf8encoder = new TextEncoder();
const testCasesNoDelimiter: TestCases = {
Adobe: [
["test", "FCfN8"],
["ascii85", "@<5pmBfIs"],
["Hello world!", "87cURD]j7BEbo80"],
//wikipedia example
[
"Man is distinguished, not only by his reason, but by this singular passion from other animals, which is a lust of the mind, that by a perseverance of delight in the continued and indefatigable generation of knowledge, exceeds the short vehemence of any carnal pleasure.",
"9jqo^BlbD-BleB1DJ+*+F(f,q/0JhKF<GL>[email protected]$d7F!,L7@<6@)/0JDEF<G%<+EV:2F!,O<DJ+*.@<*K0@<6L(Df-\\0Ec5e;DffZ(EZee.Bl.9pF\"AGXBPCsi+DGm>@3BB/F*&OCAfu2/AKYi(DIb:@FD,*)+C]U=@3BN#EcYf8ATD3s@q?d$AftVqCh[NqF<G:8+EV:.+Cf>-FD5W8ARlolDIal(DId<j@<?3r@:F%a+D58'ATD4$Bl@l3De:,-DJs`8ARoFb/0JMK@qB4^F!,R<AKZ&-DfTqBG%G>uD.RTpAKYo'+CT/5+Cei#DII?(E,9)oF*2M7/c",
],
["", ""],
["\0", "!!"],
["\0\0", "!!!"],
["\0\0\0", "!!!!"],
//special Adobe and btoa test cases - 4 bytes equal to 0 should become a "z"
["\0\0\0\0", "z"],
["\0\0\0\0\0", "z!!"],
[" ", "+<VdL"],
],
btoa: [
["test", "FCfN8"],
["ascii85", "@<5pmBfIs"],
["Hello world!", "87cURD]j7BEbo80"],
//wikipedia example
[
"Man is distinguished, not only by his reason, but by this singular passion from other animals, which is a lust of the mind, that by a perseverance of delight in the continued and indefatigable generation of knowledge, exceeds the short vehemence of any carnal pleasure.",
"9jqo^BlbD-BleB1DJ+*+F(f,q/0JhKF<GL>[email protected]$d7F!,L7@<6@)/0JDEF<G%<+EV:2F!,O<DJ+*.@<*K0@<6L(Df-\\0Ec5e;DffZ(EZee.Bl.9pF\"AGXBPCsi+DGm>@3BB/F*&OCAfu2/AKYi(DIb:@FD,*)+C]U=@3BN#EcYf8ATD3s@q?d$AftVqCh[NqF<G:8+EV:.+Cf>-FD5W8ARlolDIal(DId<j@<?3r@:F%a+D58'ATD4$Bl@l3De:,-DJs`8ARoFb/0JMK@qB4^F!,R<AKZ&-DfTqBG%G>uD.RTpAKYo'+CT/5+Cei#DII?(E,9)oF*2M7/c",
],
["", ""],
["\0", "!!"],
["\0\0", "!!!"],
["\0\0\0", "!!!!"],
//special Adobe and btoa test cases - 4 bytes equal to 0 should become a "z"
["\0\0\0\0", "z"],
["\0\0\0\0\0", "z!!"],
//special btoa test case - 4 spaces should become "y"
[" ", "y"],
],
"RFC 1924": [
["test", "bY*jN"],
["ascii85", "VRK_?X*e|"],
["Hello world!", "NM&qnZy<MXa%^NF"],
//wikipedia example
[
"Man is distinguished, not only by his reason, but by this singular passion from other animals, which is a lust of the mind, that by a perseverance of delight in the continued and indefatigable generation of knowledge, exceeds the short vehemence of any carnal pleasure.",
"O<`^zX>%ZCX>)XGZfA9Ab7*B`EFf-gbRchTY<VDJc_3(Mb0BhMVRLV8EFfZabRc4RAarPHb0BkRZfA9DVR9gFVRLh7Z*CxFa&K)QZ**v7av))DX>DO_b1WctXlY|;AZc?TVIXXEb95kYW*~HEWgu;7Ze%PVbZB98AYyqSVIXj2a&u*NWpZI|V`U(3W*}r`Y-wj`bRcPNAarPDAY*TCbZKsNWn>^>Ze$>7Ze(R<VRUI{VPb4$AZKN6WpZJ3X>V>IZ)PBCZf|#NWn^b%EFfigV`XJzb0BnRWgv5CZ*p`Xc4cT~ZDnp_Wgu^6AYpEKAY);2ZeeU7aBO8^b9HiME&",
],
["", ""],
["\0", "00"],
["\0\0", "000"],
["\0\0\0", "0000"],
["\0\0\0\0", "00000"],
["\0\0\0\0\0", "0000000"],
[" ", "ARr(h"],
],
Z85: [
["test", "By/Jn"],
["ascii85", "vrk{)x/E%"],
["Hello world!", "nm=QNzY<mxA+]nf"],
//wikipedia example
[
"Man is distinguished, not only by his reason, but by this singular passion from other animals, which is a lust of the mind, that by a perseverance of delight in the continued and indefatigable generation of knowledge, exceeds the short vehemence of any carnal pleasure.",
"o<}]Zx(+zcx(!xgzFa9aB7/b}efF?GBrCHty<vdjC{3^mB0bHmvrlv8efFzABrC4raARphB0bKrzFa9dvr9GfvrlH7z/cXfA=k!qz//V7AV!!dx(do{B1wCTxLy%&azC)tvixxeB95Kyw/#hewGU&7zE+pvBzb98ayYQsvixJ2A=U/nwPzi%v}u^3w/$R}y?WJ}BrCpnaARpday/tcBzkSnwN(](zE:(7zE^r<vrui@vpB4:azkn6wPzj3x(v(iz!pbczF%-nwN]B+efFIGv}xjZB0bNrwGV5cz/P}xC4Ct#zdNP{wGU]6ayPekay!&2zEEu7Abo8]B9hIme=",
],
["", ""],
["\0", "00"],
["\0\0", "000"],
["\0\0\0", "0000"],
["\0\0\0\0", "00000"],
["\0\0\0\0\0", "0000000"],
[" ", "arR^H"],
],
};
const testCasesDelimiter: TestCases = {
Adobe: [
["test", "<~FCfN8~>"],
["ascii85", "<~@<5pmBfIs~>"],
["Hello world!", "<~87cURD]j7BEbo80~>"],
//wikipedia example
[
"Man is distinguished, not only by his reason, but by this singular passion from other animals, which is a lust of the mind, that by a perseverance of delight in the continued and indefatigable generation of knowledge, exceeds the short vehemence of any carnal pleasure.",
"<~9jqo^BlbD-BleB1DJ+*+F(f,q/0JhKF<GL>[email protected]$d7F!,L7@<6@)/0JDEF<G%<+EV:2F!,O<DJ+*.@<*K0@<6L(Df-\\0Ec5e;DffZ(EZee.Bl.9pF\"AGXBPCsi+DGm>@3BB/F*&OCAfu2/AKYi(DIb:@FD,*)+C]U=@3BN#EcYf8ATD3s@q?d$AftVqCh[NqF<G:8+EV:.+Cf>-FD5W8ARlolDIal(DId<j@<?3r@:F%a+D58'ATD4$Bl@l3De:,-DJs`8ARoFb/0JMK@qB4^F!,R<AKZ&-DfTqBG%G>uD.RTpAKYo'+CT/5+Cei#DII?(E,9)oF*2M7/c~>",
],
["", "<~~>"],
["\0", "<~!!~>"],
["\0\0", "<~!!!~>"],
["\0\0\0", "<~!!!!~>"],
//special Adobe and btoa test cases - 4 bytes equal to 0 should become a "z"
["\0\0\0\0", "<~z~>"],
["\0\0\0\0\0", "<~z!!~>"],
[" ", "<~+<VdL~>"],
],
btoa: [
["test", "xbtoa Begin\nFCfN8\nxbtoa End"],
["ascii85", "xbtoa Begin\n@<5pmBfIs\nxbtoa End"],
["Hello world!", "xbtoa Begin\n87cURD]j7BEbo80\nxbtoa End"],
//wikipedia example
[
"Man is distinguished, not only by his reason, but by this singular passion from other animals, which is a lust of the mind, that by a perseverance of delight in the continued and indefatigable generation of knowledge, exceeds the short vehemence of any carnal pleasure.",
"xbtoa Begin\n9jqo^BlbD-BleB1DJ+*+F(f,q/0JhKF<GL>[email protected]$d7F!,L7@<6@)/0JDEF<G%<+EV:2F!,O<DJ+*.@<*K0@<6L(Df-\\0Ec5e;DffZ(EZee.Bl.9pF\"AGXBPCsi+DGm>@3BB/F*&OCAfu2/AKYi(DIb:@FD,*)+C]U=@3BN#EcYf8ATD3s@q?d$AftVqCh[NqF<G:8+EV:.+Cf>-FD5W8ARlolDIal(DId<j@<?3r@:F%a+D58'ATD4$Bl@l3De:,-DJs`8ARoFb/0JMK@qB4^F!,R<AKZ&-DfTqBG%G>uD.RTpAKYo'+CT/5+Cei#DII?(E,9)oF*2M7/c\nxbtoa End",
],
["", "xbtoa Begin\n\nxbtoa End"],
["\0", "xbtoa Begin\n!!\nxbtoa End"],
["\0\0", "xbtoa Begin\n!!!\nxbtoa End"],
["\0\0\0", "xbtoa Begin\n!!!!\nxbtoa End"],
//special Adobe and btoa test cases - 4 bytes equal to 0 should become a "z"
["\0\0\0\0", "xbtoa Begin\nz\nxbtoa End"],
["\0\0\0\0\0", "xbtoa Begin\nz!!\nxbtoa End"],
//special btoa test case - 4 spaces should become "y"
[" ", "xbtoa Begin\ny\nxbtoa End"],
],
};
for (const [standard, tests] of Object.entries(testCasesNoDelimiter)) {
if (tests === undefined) continue;
Deno.test({
name: `[encoding/ascii85] encode ${standard}`,
fn() {
for (const [bin, b85] of tests) {
assertEquals(
encodeAscii85(bin, {
standard: standard as Ascii85Standard,
}),
b85,
);
}
},
});
Deno.test({
name: `[encoding/ascii85] decode ${standard}`,
fn() {
for (const [bin, b85] of tests) {
assertEquals(
decodeAscii85(b85, { standard: standard as Ascii85Standard }),
utf8encoder.encode(bin),
);
}
},
});
}
for (const [standard, tests] of Object.entries(testCasesDelimiter)) {
if (tests === undefined) continue;
Deno.test({
name: `[encoding/ascii85] encode ${standard} with delimiter`,
fn() {
for (const [bin, b85] of tests) {
assertEquals(
encodeAscii85(bin, {
standard: standard as Ascii85Standard,
delimiter: true,
}),
b85,
);
}
},
});
Deno.test({
name: `[encoding/ascii85] decode ${standard} with delimiter`,
fn() {
for (const [bin, b85] of tests) {
assertEquals(
decodeAscii85(b85, {
standard: standard as Ascii85Standard,
delimiter: true,
}),
utf8encoder.encode(bin),
);
}
},
});
}
Deno.test({
name: `[encoding/ascii85] encode subarray of an Uint8Array`,
fn() {
const data1 = new Uint8Array([0x73, 0x70, 0x61, 0x6d]);
const data2 = new Uint8Array(
[0x01, 0x02, 0x03, 0x04, 0x73, 0x70, 0x61, 0x6d],
);
const encoded1 = encodeAscii85(data1);
const encoded2 = encodeAscii85(data2.subarray(4));
assertEquals(encoded1, "F)YQ)");
assertEquals(encoded2, "F)YQ)");
},
});