92 lines
2.5 KiB
JavaScript
92 lines
2.5 KiB
JavaScript
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var _ = require('lodash');
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var googlediff = require('googlediff');
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var seedrandom = require('seedrandom');
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var diff = require('./diff.js');
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googlediff = new googlediff();
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var ITERATIONS = 10000;
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var ALPHABET = 'GATTACA';
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var LENGTH = 100;
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var seed = Math.floor(Math.random() * 10000);
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var random = seedrandom(seed);
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console.log('Running computing ' + ITERATIONS + ' diffs with seed ' + seed + '...');
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console.log('Generating strings...');
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var strings = [];
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for(var i = 0; i <= ITERATIONS; ++i) {
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var chars = [];
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for(var l = 0; l < LENGTH; ++l) {
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var letter = ALPHABET.substr(Math.floor(random() * ALPHABET.length), 1);
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chars.push(letter);
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}
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strings.push(chars.join(''));
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}
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console.log('Running tests *without* cursor information...');
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for(var i = 0; i < ITERATIONS; ++i) {
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var result = diff(strings[i], strings[i+1]);
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var expected = googlediff.diff_main(strings[i], strings[i+1]);
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if (!_.isEqual(result, expected)) {
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console.log('Expected', expected);
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console.log('Result', result);
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throw new Error('Diff produced difference results.');
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}
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}
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console.log('Running tests *with* cursor information');
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for(var i = 0; i < ITERATIONS; ++i) {
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var cursor_pos = Math.floor(random() * strings[i].length + 1);
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var diffs = diff(strings[i], strings[i+1], cursor_pos);
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var patch = googlediff.patch_make(strings[i], strings[i+1], diffs);
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var expected = googlediff.patch_apply(patch, strings[i])[0];
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if (expected !== strings[i+1]) {
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console.log('Expected', expected);
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console.log('Result', strings[i+1]);
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throw new Error('Diff produced difference results.');
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}
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}
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console.log('Running emoji tests');
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(function() {
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var result = diff('🐶', '🐯');
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var expected = [
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[diff.DELETE, '🐶'],
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[diff.INSERT, '🐯'],
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];
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if (!_.isEqual(result, expected)) {
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console.log(result, '!==', expected);
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throw new Error('Emoji simple case test failed');
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}
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})();
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(function() {
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var result = diff('👨🏽', '👩🏽');
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var expected = [
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[diff.DELETE, '👨'],
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[diff.INSERT, '👩'],
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[diff.EQUAL, '🏽']
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];
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if (!_.isEqual(result, expected)) {
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console.log(result, '!==', expected);
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throw new Error('Emoji before case test failed');
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}
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})();
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(function() {
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var result = diff('👩🏼', '👩🏽');
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var expected = [
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[diff.EQUAL, '👩'],
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[diff.DELETE, '🏼'],
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[diff.INSERT, '🏽'],
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];
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if (!_.isEqual(result, expected)) {
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console.log(result, '!==', expected);
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throw new Error('Emoji after case test failed');
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}
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})();
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console.log("Success!");
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