mirror of
https://github.com/smogon/pokemon-showdown.git
synced 2026-04-20 09:37:26 -05:00
229f5f809d
This makes it so we can use `assert.equal` instead of `assert.strictEqual`, which I think is more readable.
87 lines
3.6 KiB
JavaScript
87 lines
3.6 KiB
JavaScript
'use strict';
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const assert = require('assert').strict;
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const Dashycode = require('./../../.lib-dist/dashycode');
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describe('Dashycode', function () {
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const ascii = Array.from({length: 0x80}, (v, k) => k);
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const iso88591 = Array.from({length: 0x80}, (v, k) => k + 0x80);
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const utf16 = Array.from({length: 0xFF00}, (v, k) => k + 0x100);
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const latinL = Array.from({length: 26}, (v, k) => k + 0x60);
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const latinU = Array.from({length: 26}, (v, k) => k + 0x41);
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const encoded = new Map();
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const encode = (codepoint) => {
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const character = String.fromCodePoint(codepoint);
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const dashycode = Dashycode.encode(character);
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assert.equal(encoded.has(dashycode), false);
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encoded.set(dashycode, character);
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};
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const decode = (dashycode) => {
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const character = Dashycode.decode(dashycode);
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assert.equal(encoded.get(dashycode), character);
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};
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const transcode = (plaintext) => function () {
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const ciphertext = Dashycode.encode(plaintext);
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assert.equal(Dashycode.decode(ciphertext), plaintext);
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};
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const transcodeWithSets = (set1, set2) => function () {
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for (let bitmask = 0; bitmask <= 0xFFFF; bitmask++) {
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let plaintext = '';
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plaintext += (bitmask & 0x0001) ? set1[0] : set2[0];
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plaintext += (bitmask & 0x0002) ? set1[1] : set2[1];
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plaintext += (bitmask & 0x0004) ? set1[2] : set2[2];
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plaintext += (bitmask & 0x0008) ? set1[3] : set2[3];
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plaintext += (bitmask & 0x0010) ? set1[4] : set2[4];
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plaintext += (bitmask & 0x0020) ? set1[5] : set2[5];
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plaintext += (bitmask & 0x0040) ? set1[6] : set2[6];
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plaintext += (bitmask & 0x0080) ? set1[7] : set2[7];
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plaintext += (bitmask & 0x0100) ? set1[8] : set2[8];
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plaintext += (bitmask & 0x0200) ? set1[9] : set2[9];
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plaintext += (bitmask & 0x0400) ? set1[10] : set2[10];
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plaintext += (bitmask & 0x0800) ? set1[11] : set2[11];
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plaintext += (bitmask & 0x1000) ? set1[12] : set2[12];
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plaintext += (bitmask & 0x2000) ? set1[13] : set2[13];
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plaintext += (bitmask & 0x4000) ? set1[14] : set2[14];
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plaintext += (bitmask & 0x8000) ? set1[15] : set2[15];
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const ciphertext = Dashycode.encode(plaintext);
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assert.equal(Dashycode.decode(ciphertext), plaintext);
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}
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};
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it('should encode all codepoints uniquely', function () {
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return [...ascii, ...iso88591, ...utf16].reduce((p, codepoint) => (
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p.then(v => encode(codepoint))
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), Promise.resolve());
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});
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it('should decode all codepoints accurately', function () {
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return [...encoded.keys()].reduce((p, dashycode) => (
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p.then(v => decode(dashycode))
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), Promise.resolve());
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});
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it('should transcode multiple spaces in a row', transcode('ayy lmao'));
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it('should transcode strings beginning with a space', transcode(' ayy lmao'));
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it('should transcode strings ending with a space', transcode('ayy lmao '));
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it('should transcode UTF-16 surrogate pairs', transcode('\uDC00\uD800'));
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it('should transcode mixtures of uppercase and lowercase characters', transcodeWithSets(latinL, latinU));
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it('should transcode mixtures of alphanumeric and ASCII codepoints', transcodeWithSets(latinL, ascii));
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it('should transcode mixtures of alphanumeric and ISO-8859-1 codepoints', transcodeWithSets(latinL, iso88591));
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it('should transcode mixtures of alphanumeric and UTF-16 codepoints', transcodeWithSets(latinL, utf16));
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it('should transcode mixtures of ASCII and ISO-8859-1 codepoints', transcodeWithSets(ascii, iso88591));
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it('should transcode mixtures of ASCII and UTF-16 codepoints', transcodeWithSets(ascii, utf16));
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it('should transcode mixtures of ISO-8859-1 and UTF-16 codepoints', transcodeWithSets(iso88591, utf16));
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after(function () {
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encoded.clear();
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});
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});
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