How to use checkNoDuplicateParamEntries method in Playwright Internal

Best JavaScript code snippet using playwright-internal

api_parser.js

Source: api_parser.js Github

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...35 bodyParts.push(fs.readFileSync(path.join(apiDir, name)).toString());36 }37 const body = md.parse(bodyParts.join('\n'));38 const params = paramsPath ? md.parse(fs.readFileSync(paramsPath).toString()) : null;39 checkNoDuplicateParamEntries(params);40 const api = params ? applyTemplates(body, params) : body;41 /​** @type {Map<string, Documentation.Class>} */​42 this.classes = new Map();43 md.visitAll(api, node => {44 if (node.type === 'h1')45 this.parseClass(node);46 });47 md.visitAll(api, node => {48 if (node.type === 'h2')49 this.parseMember(node);50 });51 md.visitAll(api, node => {52 if (node.type === 'h3')53 this.parseArgument(node);54 });55 this.documentation = new Documentation([...this.classes.values()]);56 this.documentation.index();57 }58 /​**59 * @param {MarkdownNode} node60 */​61 parseClass(node) {62 let extendsName = null;63 const name = node.text.substring('class: '.length);64 for (const member of node.children) {65 if (member.type.startsWith('h'))66 continue;67 if (member.type === 'li' && member.liType === 'bullet' && member.text.startsWith('extends: [')) {68 extendsName = member.text.substring('extends: ['.length, member.text.indexOf(']'));69 continue;70 }71 }72 const clazz = new Documentation.Class(extractLangs(node), extractExperimental(node), name, [], extendsName, extractComments(node));73 this.classes.set(clazz.name, clazz);74 }75 /​**76 * @param {MarkdownNode} spec77 */​78 parseMember(spec) {79 const match = spec.text.match(/​(event|method|property|async method|optional method|optional async method): ([^.]+)\.(.*)/​);80 if (!match)81 throw new Error('Invalid member: ' + spec.text);82 const name = match[3];83 let returnType = null;84 let optional = false;85 for (const item of spec.children || []) {86 if (item.type === 'li' && item.liType === 'default') {87 const parsed = this.parseType(item);88 returnType = parsed.type;89 optional = parsed.optional;90 }91 }92 if (!returnType)93 returnType = new Documentation.Type('void');94 const comments = extractComments(spec);95 let member;96 if (match[1] === 'event')97 member = Documentation.Member.createEvent(extractLangs(spec), extractExperimental(spec), name, returnType, comments);98 if (match[1] === 'property')99 member = Documentation.Member.createProperty(extractLangs(spec), extractExperimental(spec), name, returnType, comments, !optional);100 if (['method', 'async method', 'optional method', 'optional async method'].includes(match[1])) {101 member = Documentation.Member.createMethod(extractLangs(spec), extractExperimental(spec), name, [], returnType, comments);102 if (match[1].includes('async'))103 member.async = true;104 if (match[1].includes('optional'))105 member.required = false;106 }107 const clazz = this.classes.get(match[2]);108 const existingMember = clazz.membersArray.find(m => m.name === name && m.kind === member.kind);109 if (existingMember && isTypeOverride(existingMember, member)) {110 for (const lang of member.langs.only) {111 existingMember.langs.types = existingMember.langs.types || {};112 existingMember.langs.types[lang] = returnType;113 }114 } else {115 clazz.membersArray.push(member);116 }117 }118 /​**119 * @param {MarkdownNode} spec120 */​121 parseArgument(spec) {122 const match = spec.text.match(/​(param|option): (.*)/​);123 if (!match)124 throw `Something went wrong with matching ${spec.text}`;125 /​/​ For "test.describe.only.title":126 /​/​ - className is "test"127 /​/​ - methodName is "describe.only"128 /​/​ - argument name is "title"129 const parts = match[2].split('.');130 const className = parts[0];131 const name = parts[parts.length - 1];132 const methodName = parts.slice(1, parts.length - 1).join('.');133 const clazz = this.classes.get(className);134 if (!clazz)135 throw new Error('Invalid class ' + className);136 const method = clazz.membersArray.find(m => m.kind === 'method' && m.name === methodName);137 if (!method)138 throw new Error(`Invalid method ${className}.${methodName} when parsing: ${match[0]}`);139 if (!name)140 throw new Error('Invalid member name ' + spec.text);141 if (match[1] === 'param') {142 const arg = this.parseProperty(spec);143 arg.name = name;144 const existingArg = method.argsArray.find(m => m.name === arg.name);145 if (existingArg && isTypeOverride(existingArg, arg)) {146 if (!arg.langs || !arg.langs.only)147 throw new Error('Override does not have lang: ' + spec.text);148 for (const lang of arg.langs.only) {149 existingArg.langs.overrides = existingArg.langs.overrides || {};150 existingArg.langs.overrides[lang] = arg;151 }152 } else {153 method.argsArray.push(arg);154 }155 } else {156 /​/​ match[1] === 'option'157 let options = method.argsArray.find(o => o.name === 'options');158 if (!options) {159 const type = new Documentation.Type('Object', []);160 options = Documentation.Member.createProperty({}, false /​* experimental */​, 'options', type, undefined, false);161 method.argsArray.push(options);162 }163 const p = this.parseProperty(spec);164 p.required = false;165 options.type.properties.push(p);166 }167 }168 /​**169 * @param {MarkdownNode} spec170 */​171 parseProperty(spec) {172 const param = childrenWithoutProperties(spec)[0];173 const text = param.text;174 let typeStart = text.indexOf('<');175 while ('?e'.includes(text[typeStart - 1]))176 typeStart--;177 const name = text.substring(0, typeStart).replace(/​\`/​g, '').trim();178 const comments = extractComments(spec);179 const { type, optional } = this.parseType(param);180 return Documentation.Member.createProperty(extractLangs(spec), extractExperimental(spec), name, type, comments, !optional);181 }182 /​**183 * @param {MarkdownNode=} spec184 * @return {{ type: Documentation.Type, optional: boolean, experimental: boolean }}185 */​186 parseType(spec) {187 const arg = parseVariable(spec.text);188 const properties = [];189 for (const child of spec.children || []) {190 const { name, text } = parseVariable(child.text);191 const comments = /​** @type {MarkdownNode[]} */​ ([{ type: 'text', text }]);192 const childType = this.parseType(child);193 properties.push(Documentation.Member.createProperty({}, childType.experimental, name, childType.type, comments, !childType.optional));194 }195 const type = Documentation.Type.parse(arg.type, properties);196 return { type, optional: arg.optional, experimental: arg.experimental };197 }198}199/​**200 * @param {string} line201 * @returns {{ name: string, type: string, text: string, optional: boolean, experimental: boolean }}202 */​203function parseVariable(line) {204 let match = line.match(/​^`([^`]+)` (.*)/​);205 if (!match)206 match = line.match(/​^(returns): (.*)/​);207 if (!match)208 match = line.match(/​^(type): (.*)/​);209 if (!match)210 match = line.match(/​^(argument): (.*)/​);211 if (!match)212 throw new Error('Invalid argument: ' + line);213 const name = match[1];214 let remainder = match[2];215 let optional = false;216 let experimental = false;217 while ('?e'.includes(remainder[0])) {218 if (remainder[0] === '?')219 optional = true;220 else if (remainder[0] === 'e')221 experimental = true;222 remainder = remainder.substring(1);223 }224 if (!remainder.startsWith('<'))225 throw new Error(`Bad argument: "${name}" in "${line}"`);226 let depth = 0;227 for (let i = 0; i < remainder.length; ++i) {228 const c = remainder.charAt(i);229 if (c === '<')230 ++depth;231 if (c === '>')232 --depth;233 if (depth === 0)234 return { name, type: remainder.substring(1, i), text: remainder.substring(i + 2), optional, experimental };235 }236 throw new Error('Should not be reached');237}238/​**239 * @param {MarkdownNode[]} body240 * @param {MarkdownNode[]} params241 */​242function applyTemplates(body, params) {243 const paramsMap = new Map();244 for (const node of params)245 paramsMap.set('%%-' + node.text + '-%%', node);246 const visit = (node, parent) => {247 if (node.text && node.text.includes('-inline- = %%')) {248 const [name, key] = node.text.split('-inline- = ');249 const list = paramsMap.get(key);250 const newChildren = [];251 if (!list)252 throw new Error('Bad template: ' + key);253 for (const prop of list.children) {254 const template = paramsMap.get(prop.text);255 if (!template)256 throw new Error('Bad template: ' + prop.text);257 const children = childrenWithoutProperties(template);258 const { name: argName } = parseVariable(children[0].text);259 newChildren.push({260 type: node.type,261 text: name + argName,262 children: template.children.map(c => md.clone(c))263 });264 }265 const nodeIndex = parent.children.indexOf(node);266 parent.children = [...parent.children.slice(0, nodeIndex), ...newChildren, ...parent.children.slice(nodeIndex + 1)];267 } else if (node.text && node.text.includes(' = %%')) {268 const [name, key] = node.text.split(' = ');269 node.text = name;270 const template = paramsMap.get(key);271 if (!template)272 throw new Error('Bad template: ' + key);273 node.children.push(...template.children.map(c => md.clone(c)));274 }275 for (const child of node.children || [])276 visit(child, node);277 if (node.children)278 node.children = node.children.filter(child => !child.text || !child.text.includes('-inline- = %%'));279 };280 for (const node of body)281 visit(node, null);282 return body;283}284/​**285 * @param {MarkdownNode} item286 * @returns {MarkdownNode[]}287 */​288function extractComments(item) {289 return childrenWithoutProperties(item).filter(c => {290 if (c.type.startsWith('h'))291 return false;292 if (c.type === 'li' && c.liType === 'default')293 return false;294 return true;295 });296}297/​**298 * @param {string} apiDir299 * @param {string=} paramsPath300 */​301function parseApi(apiDir, paramsPath) {302 return new ApiParser(apiDir, paramsPath).documentation;303}304/​**305 * @param {MarkdownNode} spec306 * @returns {import('./​documentation').Langs}307 */​308function extractLangs(spec) {309 for (const child of spec.children) {310 if (child.type !== 'li' || child.liType !== 'bullet' || !child.text.startsWith('langs:'))311 continue;312 const only = child.text.substring('langs:'.length).trim();313 /​** @type {Object<string, string>} */​314 const aliases = {};315 for (const p of child.children || []) {316 const match = p.text.match(/​alias-(\w+)[\s]*:(.*)/​);317 if (match)318 aliases[match[1].trim()] = match[2].trim();319 }320 return {321 only: only ? only.split(',').map(l => l.trim()) : undefined,322 aliases,323 types: {},324 overrides: {}325 };326 }327 return {};328}329/​**330 * @param {MarkdownNode} spec331 * @returns {boolean}332 */​333 function extractExperimental(spec) {334 for (const child of spec.children) {335 if (child.type === 'li' && child.liType === 'bullet' && child.text === 'experimental')336 return true;337 }338 return false;339}340/​**341 * @param {MarkdownNode} spec342 * @returns {MarkdownNode[]}343 */​344function childrenWithoutProperties(spec) {345 return (spec.children || []).filter(c => {346 const isProperty = c.liType === 'bullet' && (c.text.startsWith('langs:') || c.text === 'experimental');347 return !isProperty;348 });349}350/​**351 * @param {Documentation.Member} existingMember352 * @param {Documentation.Member} member353 * @returns {boolean}354 */​355function isTypeOverride(existingMember, member) {356 if (!existingMember.langs.only)357 return true;358 if (member.langs.only.every(l => existingMember.langs.only.includes(l))) {359 return true;360 } else if (member.langs.only.some(l => existingMember.langs.only.includes(l))) {361 throw new Error(`Ambiguous language override for: ${member.name}`);362 }363 return false;364}365/​**366 * @param {MarkdownNode[]=} params367 */​368function checkNoDuplicateParamEntries(params) {369 if (!params)370 return;371 const entries = new Set();372 for (const node of params) {373 if (entries.has(node.text))374 throw new Error('Duplicate param entry, for language-specific params use prefix (e.g. js-...): ' + node.text);375 entries.add(node.text);376 }377}...

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Using AI Code Generation

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1const {checkNoDuplicateParamEntries} = require('playwright/​internal/​utils/​utils');2const {checkNoDuplicateParamEntries} = require('playwright/​internal/​utils/​utils');3const {checkNoDuplicateParamEntries} = require('playwright/​internal/​utils/​utils');4const {checkNoDuplicateParamEntries} = require('playwright/​internal/​utils/​utils');5const {checkNoDuplicateParamEntries} = require('playwright/​internal/​utils/​utils');6const {checkNoDuplicateParamEntries} = require('playwright/​internal/​utils/​utils');7const {checkNoDuplicateParamEntries} = require('playwright/​internal/​utils/​utils');8const {checkNoDuplicateParamEntries} = require('playwright/​internal/​utils/​utils');9const {checkNoDuplicateParamEntries} = require('playwright/​internal/​utils/​utils');10const {checkNoDuplicateParamEntries} = require('playwright/​internal/​utils/​utils');11const {checkNoDuplicateParamEntries} = require('playwright/​internal/​utils/​utils');12const {checkNoDuplicateParamEntries} = require('playwright/​internal/​utils/​utils');13const {checkNoDuplicateParamEntries} = require('playwright/​internal/​utils/​utils');14const {checkNoDuplicateParamEntries} = require('playwright/​internal/​utils/​utils');15const {checkNoDuplicateParamEntries} = require('playwright/​internal/​utils/​utils');16const {

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Using AI Code Generation

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1const { checkNoDuplicateParamEntries } = require('@playwright/​test/​lib/​server/​traceViewer/​traceModel');2const trace = require('./​trace.json');3const { contextEntries, pageEntries } = checkNoDuplicateParamEntries(trace.traceEvents);4console.log(contextEntries, pageEntries);5const { test, expect } = require('@playwright/​test');6test('basic test', async ({ page }) => {7 expect(await page.title()).toBe('Playwright');8});

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Using AI Code Generation

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1const { checkNoDuplicateParamEntries } = require('playwright/​lib/​utils/​utils');2const { test } = require('@playwright/​test');3const { expect } = require('@playwright/​test');4test('test to check checkNoDuplicateParamEntries', () => {5 { name: 'foo', value: 'bar' },6 { name: 'foo', value: 'bar' },7 { name: 'baz', value: 'qux' },8 ];9 expect(() => checkNoDuplicateParamEntries(params)).toThrow();10});

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Using AI Code Generation

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1const { checkNoDuplicateParamEntries } = require('playwright/​lib/​server/​api');2const { test } = require('@playwright/​test');3test('test', async ({ page }) => {4 const request = await page.waitForRequest(request => request.url().includes('example.com'));5 checkNoDuplicateParamEntries(request.postDataJSON(), request.postDataJSON());6});7import { PlaywrightTestConfig } from '@playwright/​test';8const config: PlaywrightTestConfig = {9 use: {10 viewport: { width: 1280, height: 720 },11 },12 {13 use: {14 },15 },16};17export default config;18const request = await page.waitForRequest(request => request.url().includes('example.com'));19const json = request.postDataJSON();20checkNoDuplicateParamEntries(json, json);21const json = request.postDataJSON();22checkNoDuplicateParamEntries(json, json);23const { checkNoDuplicateParamEntries } = require('playwright/​lib/​server/​api');24const { test } = require('@playwright/​test');25test('test', async ({ page }) => {26 const request = await page.waitForRequest(request => request.url().includes('example.com'));27 const json = request.postDataJSON();28 checkNoDuplicateParamEntries(json, json);29});

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Using AI Code Generation

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1const { checkNoDuplicateParamEntries } = require('playwright-core/​lib/​utils/​utils');2const assert = require('assert');3try {4 checkNoDuplicateParamEntries(new URL(url));5} catch (err) {6 assert.strictEqual(err.message, `URL has duplicate query parameters: ${url}`);7}8const { checkNoDuplicateParamEntries } = require('playwright-core/​lib/​utils/​utils');9const assert = require('assert');10assert.doesNotThrow(() => checkNoDuplicateParamEntries(new URL(url)));11const { checkNoDuplicateParamEntries } = require('playwright-core/​lib/​utils/​utils');12const assert = require('assert');13assert.doesNotThrow(() => checkNoDuplicateParamEntries(new URL(url)));

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Using AI Code Generation

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1const {chromium} = require('playwright');2const {checkNoDuplicateParamEntries} = require('playwright/​lib/​utils/​utils');3(async () => {4 const browser = await chromium.launch({headless: false});5 const context = await browser.newContext();6 const page = await context.newPage();7 await checkNoDuplicateParamEntries(page.url());8 await browser.close();9})();

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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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