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webzwo0irhansen
webzwo0i
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rhansen
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easysync tests: Split into multiple files
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9 files changed

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‎src/tests/frontend/easysync-helper.js‎

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'use strict';
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const Changeset = require('../../static/js/Changeset');
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const AttributePool = require('../../static/js/AttributePool');
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const randInt = (maxValue) => Math.floor(Math.random() * maxValue);
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const poolOrArray = (attribs) => {
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if (attribs.getAttrib) {
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return attribs; // it's already an attrib pool
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} else {
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// assume it's an array of attrib strings to be split and added
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const p = new AttributePool();
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attribs.forEach((kv) => {
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p.putAttrib(kv.split(','));
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});
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return p;
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}
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};
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exports.poolOrArray = poolOrArray;
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const randomInlineString = (len) => {
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const assem = Changeset.stringAssembler();
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for (let i = 0; i < len; i++) {
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assem.append(String.fromCharCode(randInt(26) + 97));
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}
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return assem.toString();
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};
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const randomMultiline = (approxMaxLines, approxMaxCols) => {
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const numParts = randInt(approxMaxLines * 2) + 1;
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const txt = Changeset.stringAssembler();
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txt.append(randInt(2) ? '\n' : '');
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for (let i = 0; i < numParts; i++) {
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if ((i % 2) === 0) {
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if (randInt(10)) {
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txt.append(randomInlineString(randInt(approxMaxCols) + 1));
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} else {
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txt.append('\n');
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}
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} else {
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txt.append('\n');
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}
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}
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return txt.toString();
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};
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exports.randomMultiline = randomMultiline;
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const randomStringOperation = (numCharsLeft) => {
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let result;
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switch (randInt(9)) {
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case 0:
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{
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// insert char
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result = {
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insert: randomInlineString(1),
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};
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break;
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}
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case 1:
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{
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// delete char
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result = {
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remove: 1,
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};
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break;
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}
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case 2:
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{
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// skip char
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result = {
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skip: 1,
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};
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break;
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}
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case 3:
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{
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// insert small
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result = {
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insert: randomInlineString(randInt(4) + 1),
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};
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break;
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}
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case 4:
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{
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// delete small
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result = {
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remove: randInt(4) + 1,
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};
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break;
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}
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case 5:
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{
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// skip small
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result = {
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skip: randInt(4) + 1,
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};
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break;
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}
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case 6:
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{
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// insert multiline;
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result = {
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insert: randomMultiline(5, 20),
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};
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break;
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}
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case 7:
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{
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// delete multiline
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result = {
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remove: Math.round(numCharsLeft * Math.random() * Math.random()),
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};
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break;
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}
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case 8:
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{
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// skip multiline
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result = {
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skip: Math.round(numCharsLeft * Math.random() * Math.random()),
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};
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break;
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}
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case 9:
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{
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// delete to end
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result = {
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remove: numCharsLeft,
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};
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break;
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}
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case 10:
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{
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// skip to end
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result = {
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skip: numCharsLeft,
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};
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break;
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}
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}
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const maxOrig = numCharsLeft - 1;
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if ('remove' in result) {
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result.remove = Math.min(result.remove, maxOrig);
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} else if ('skip' in result) {
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result.skip = Math.min(result.skip, maxOrig);
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}
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return result;
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};
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const randomTwoPropAttribs = (opcode) => {
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// assumes attrib pool like ['apple,','apple,true','banana,','banana,true']
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if (opcode === '-' || randInt(3)) {
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return '';
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} else if (randInt(3)) { // eslint-disable-line no-dupe-else-if
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if (opcode === '+' || randInt(2)) {
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return `*${Changeset.numToString(randInt(2) * 2 + 1)}`;
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} else {
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return `*${Changeset.numToString(randInt(2) * 2)}`;
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}
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} else if (opcode === '+' || randInt(4) === 0) {
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return '*1*3';
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} else {
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return ['*0*2', '*0*3', '*1*2'][randInt(3)];
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}
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};
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const randomTestChangeset = (origText, withAttribs) => {
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const charBank = Changeset.stringAssembler();
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let textLeft = origText; // always keep final newline
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const outTextAssem = Changeset.stringAssembler();
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const opAssem = Changeset.smartOpAssembler();
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const oldLen = origText.length;
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const nextOp = new Changeset.Op();
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const appendMultilineOp = (opcode, txt) => {
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nextOp.opcode = opcode;
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if (withAttribs) {
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nextOp.attribs = randomTwoPropAttribs(opcode);
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}
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txt.replace(/\n|[^\n]+/g, (t) => {
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if (t === '\n') {
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nextOp.chars = 1;
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nextOp.lines = 1;
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opAssem.append(nextOp);
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} else {
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nextOp.chars = t.length;
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nextOp.lines = 0;
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opAssem.append(nextOp);
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}
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return '';
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});
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};
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const doOp = () => {
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const o = randomStringOperation(textLeft.length);
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if (o.insert) {
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const txt = o.insert;
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charBank.append(txt);
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outTextAssem.append(txt);
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appendMultilineOp('+', txt);
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} else if (o.skip) {
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const txt = textLeft.substring(0, o.skip);
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textLeft = textLeft.substring(o.skip);
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outTextAssem.append(txt);
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appendMultilineOp('=', txt);
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} else if (o.remove) {
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const txt = textLeft.substring(0, o.remove);
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textLeft = textLeft.substring(o.remove);
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appendMultilineOp('-', txt);
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}
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};
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while (textLeft.length > 1) doOp();
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for (let i = 0; i < 5; i++) doOp(); // do some more (only insertions will happen)
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const outText = `${outTextAssem.toString()}\n`;
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opAssem.endDocument();
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const cs = Changeset.pack(oldLen, outText.length, opAssem.toString(), charBank.toString());
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Changeset.checkRep(cs);
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return [cs, outText];
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};
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exports.randomTestChangeset = randomTestChangeset;

‎src/tests/frontend/specs/easysync-assembler.js‎

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'use strict';
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const Changeset = require('../../../static/js/Changeset');
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describe('easysync-assembler', function () {
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it('opAssembler', async function () {
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const x = '-c*3*4+6|3=az*asdf0*1*2*3+1=1-1+1*0+1=1-1+1|c=c-1';
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const assem = Changeset.opAssembler();
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for (const op of Changeset.deserializeOps(x)) assem.append(op);
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expect(assem.toString()).to.equal(x);
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});
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it('smartOpAssembler', async function () {
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const x = '-c*3*4+6|3=az*asdf0*1*2*3+1=1-1+1*0+1=1-1+1|c=c-1';
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const assem = Changeset.smartOpAssembler();
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for (const op of Changeset.deserializeOps(x)) assem.append(op);
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assem.endDocument();
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expect(assem.toString()).to.equal(x);
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});
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describe('append atext to assembler', function () {
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const testAppendATextToAssembler = (testId, atext, correctOps) => {
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it(`testAppendATextToAssembler#${testId}`, async function () {
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const assem = Changeset.smartOpAssembler();
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for (const op of Changeset.opsFromAText(atext)) assem.append(op);
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expect(assem.toString()).to.equal(correctOps);
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});
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};
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testAppendATextToAssembler(1, {
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text: '\n',
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attribs: '|1+1',
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}, '');
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testAppendATextToAssembler(2, {
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text: '\n\n',
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attribs: '|2+2',
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}, '|1+1');
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testAppendATextToAssembler(3, {
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text: '\n\n',
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attribs: '*x|2+2',
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}, '*x|1+1');
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testAppendATextToAssembler(4, {
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text: '\n\n',
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attribs: '*x|1+1|1+1',
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}, '*x|1+1');
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testAppendATextToAssembler(5, {
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text: 'foo\n',
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attribs: '|1+4',
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}, '+3');
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testAppendATextToAssembler(6, {
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text: '\nfoo\n',
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attribs: '|2+5',
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}, '|1+1+3');
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testAppendATextToAssembler(7, {
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text: '\nfoo\n',
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attribs: '*x|2+5',
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}, '*x|1+1*x+3');
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testAppendATextToAssembler(8, {
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text: '\n\n\nfoo\n',
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attribs: '|2+2*x|2+5',
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}, '|2+2*x|1+1*x+3');
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});
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});

‎src/tests/frontend/specs/easysync-compose.js‎

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'use strict';
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const Changeset = require('../../../static/js/Changeset');
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const AttributePool = require('../../../static/js/AttributePool');
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const {randomMultiline, randomTestChangeset} = require('../easysync-helper.js');
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describe('easysync-compose', function () {
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describe('compose', function () {
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const testCompose = (randomSeed) => {
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it(`testCompose#${randomSeed}`, async function () {
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const p = new AttributePool();
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const startText = `${randomMultiline(10, 20)}\n`;
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const x1 = randomTestChangeset(startText);
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const change1 = x1[0];
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const text1 = x1[1];
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const x2 = randomTestChangeset(text1);
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const change2 = x2[0];
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const text2 = x2[1];
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const x3 = randomTestChangeset(text2);
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const change3 = x3[0];
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const text3 = x3[1];
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const change12 = Changeset.checkRep(Changeset.compose(change1, change2, p));
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const change23 = Changeset.checkRep(Changeset.compose(change2, change3, p));
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const change123 = Changeset.checkRep(Changeset.compose(change12, change3, p));
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const change123a = Changeset.checkRep(Changeset.compose(change1, change23, p));
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expect(change123a).to.equal(change123);
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expect(Changeset.applyToText(change12, startText)).to.equal(text2);
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expect(Changeset.applyToText(change23, text1)).to.equal(text3);
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expect(Changeset.applyToText(change123, startText)).to.equal(text3);
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});
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};
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for (let i = 0; i < 30; i++) testCompose(i);
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});
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describe('compose attributes', function () {
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it('simpleComposeAttributesTest', async function () {
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const p = new AttributePool();
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p.putAttrib(['bold', '']);
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p.putAttrib(['bold', 'true']);
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const cs1 = Changeset.checkRep('Z:2>1*1+1*1=1$x');
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const cs2 = Changeset.checkRep('Z:3>0*0|1=3$');
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const cs12 = Changeset.checkRep(Changeset.compose(cs1, cs2, p));
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expect(cs12).to.equal('Z:2>1+1*0|1=2$x');
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});
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});
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});

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