How to use diff_linesToCharsMunge_ method in Playwright Internal

Best JavaScript code snippet using playwright-internal

threewaymerge.js

Source: threewaymerge.js Github

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...122 * @param {string} text String to encode.123 * @return {string} Encoded string.124 * @private125 */​126 function diff_linesToCharsMunge_(text) {127 var chars = '';128 /​/​ Walk the text, pulling out a substring for each line.129 /​/​ text.split('\n') would would temporarily double our memory footprint.130 /​/​ Modifying text would create many large strings to garbage collect.131 var lineStart = 0;132 var lineEnd = -1;133 /​/​ Keeping our own length variable is faster than looking it up.134 var lineArrayLength = lineArray.length;135 while (lineEnd < text.length - 1) {136 lineEnd = text.indexOf('\n', lineStart);137 if (lineEnd == -1) {138 lineEnd = text.length - 1;139 }140 var line = text.substring(lineStart, lineEnd + 1);141 lineStart = lineEnd + 1;142 143 if (lineHash.hasOwnProperty ? lineHash.hasOwnProperty(line) :144 (lineHash[line] !== undefined)) {145 chars += String.fromCharCode(lineHash[line]);146 } else {147 chars += String.fromCharCode(lineArrayLength);148 lineHash[line] = lineArrayLength;149 lineArray[lineArrayLength++] = line;150 }151 }152 return chars;153 }154 155 var chars1 = diff_linesToCharsMunge_(text1);156 var chars2 = diff_linesToCharsMunge_(text2);157 var chars3 = diff_linesToCharsMunge_(text3);158 return { chars1: chars1, chars2: chars2, chars3: chars3, lineArray: lineArray };159 }160 161 /​***** Register and define API *****/​162 163 /​**164 * 165 **/​166 plugin.freezePublicAPI({167 /​**168 * The data structure representing a diff is an array of tuples:169 * [[DIFF_DELETE, 'Hello'], [DIFF_INSERT, 'Goodbye'], [DIFF_EQUAL, ' world.']]170 * which means: delete 'Hello', add 'Goodbye' and keep ' world.'171 */​...

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three_way_merge.js

Source: three_way_merge.js Github

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...90 * @param {string} text String to encode.91 * @return {string} Encoded string.92 * @private93 */​94 function diff_linesToCharsMunge_(text) {95 var chars = '';96 /​/​ Walk the text, pulling out a substring for each line.97 /​/​ text.split('\n') would would temporarily double our memory footprint.98 /​/​ Modifying text would create many large strings to garbage collect.99 var lineStart = 0;100 var lineEnd = -1;101 /​/​ Keeping our own length variable is faster than looking it up.102 var lineArrayLength = lineArray.length;103 while (lineEnd < text.length - 1) {104 lineEnd = text.indexOf('\n', lineStart);105 if (lineEnd == -1) {106 lineEnd = text.length - 1;107 }108 var line = text.substring(lineStart, lineEnd + 1);109 lineStart = lineEnd + 1;110 if (lineHash.hasOwnProperty ? lineHash.hasOwnProperty(line) :111 (lineHash[line] !== undefined)) {112 chars += String.fromCharCode(lineHash[line]);113 } else {114 chars += String.fromCharCode(lineArrayLength);115 lineHash[line] = lineArrayLength;116 lineArray[lineArrayLength++] = line;117 }118 }119 return chars;120 }121 var chars1 = diff_linesToCharsMunge_(text1);122 var chars2 = diff_linesToCharsMunge_(text2);123 var chars3 = diff_linesToCharsMunge_(text3);124 return {chars1: chars1, chars2: chars2, chars3: chars3, lineArray: lineArray};125}...

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Using AI Code Generation

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1const {chromium} = require('playwright');2const fs = require('fs');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await page.goto('

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Using AI Code Generation

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1const { diff_linesToCharsMunge_ } = require('playwright/​lib/​utils/​diff');2const diff = diff_linesToCharsMunge_('a3');4console.log(diff);5const { diff } = require('playwright/​lib/​utils/​diff');6const diffResult = diff('a

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Using AI Code Generation

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1const { diff_linesToCharsMunge_ } = require('playwright/​lib/​utils/​diff');2This is a test`;3This is a test`;4const result = diff_linesToCharsMunge_(a, b);5console.log(result);6{ chars1: 'This is a test7' ] }

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Using AI Code Generation

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1const { diff_linesToCharsMunge_ } = require('@playwright/​test/​lib/​utils/​utils');2stu";3yz";4const result = diff_linesToCharsMunge_(a, b);5console.log(result);6{ chars1: 'abc7 lineArray: [ 'abc', 'def', 'ghi', 'jkl', 'mno', 'pqr', 'stu', 'vwx', 'yz' ] }8{ chars1: 'abc9 lineArray: [ 'abc', 'def', 'ghi', 'jkl', 'mno', 'pqr', 'stu' ] }10export const diff_commonPrefix = diff_commonPrefix_;11export const diff_commonSuffix = diff_commonSuffix_;12export const diff_commonOverlap = diff_commonOverlap_;13export const diff_halfMatch = diff_halfMatch_;14export const diff_linesToChars = diff_linesToChars_;15export const diff_charsToLines = diff_charsToLines_;16export const diff_cleanupSemantic = diff_cleanupSemantic_;17export const diff_cleanupSemanticLossless = diff_cleanupSemanticLossless_;18export const diff_cleanupEfficiency = diff_cleanupEfficiency_;19export const diff_cleanupMerge = diff_cleanupMerge_;20export const diff_levenshtein = diff_levenshtein_;21export const diff_toDelta = diff_toDelta_;22export const diff_fromDelta = diff_fromDelta_;23export const diff_prettyHtml = diff_prettyHtml_;24export const diff_linesToCharsMunge = diff_linesToCharsMunge_;

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StackOverFlow community discussions

Questions
Discussion

Jest + Playwright - Test callbacks of event-based DOM library

firefox browser does not start in playwright

Is it possible to get the selector from a locator object in playwright?

How to run a list of test suites in a single file concurrently in jest?

Running Playwright in Azure Function

firefox browser does not start in playwright

This question is quite close to a "need more focus" question. But let's try to give it some focus:

Does Playwright has access to the cPicker object on the page? Does it has access to the window object?

Yes, you can access both cPicker and the window object inside an evaluate call.

Should I trigger the events from the HTML file itself, and in the callbacks, print in the DOM the result, in some dummy-element, and then infer from that dummy element text that the callbacks fired?

Exactly, or you can assign values to a javascript variable:

const cPicker = new ColorPicker({
  onClickOutside(e){
  },
  onInput(color){
    window['color'] = color;
  },
  onChange(color){
    window['result'] = color;
  }
})

And then

it('Should call all callbacks with correct arguments', async() => {
    await page.goto(`http://localhost:5000/tests/visual/basic.html`, {waitUntil:'load'})

    // Wait until the next frame
    await page.evaluate(() => new Promise(requestAnimationFrame))

    // Act
   
    // Assert
    const result = await page.evaluate(() => window['color']);
    // Check the value
})
https://stackoverflow.com/questions/65477895/jest-playwright-test-callbacks-of-event-based-dom-library

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