Best JavaScript code snippet using playwright-internal
Connection.js
Source: Connection.js
...96 if (object.id && this._callbacks.has(object.id)) {97 const callback = this._callbacks.get(object.id);98 this._callbacks.delete(object.id);99 if (object.error)100 callback.reject(rewriteError(callback.error, `Protocol error (${callback.method}): ${object.error.message} ${object.error.data}`));101 else102 callback.resolve(object.result);103 } else {104 console.assert(!object.id);105 if (object.method === 'Target.receivedMessageFromTarget') {106 const session = this._sessions.get(object.params.sessionId);107 if (session)108 session._onMessage(object.params.message);109 } else if (object.method === 'Target.detachedFromTarget') {110 const session = this._sessions.get(object.params.sessionId);111 if (session)112 session._onClosed();113 this._sessions.delete(object.params.sessionId);114 } else {115 this.emit(object.method, object.params);116 }117 }118 }119 _onClose() {120 if (this._closeCallback) {121 this._closeCallback();122 this._closeCallback = null;123 }124 this._transport.removeAllListeners();125 // If transport throws any error at this point of time, we don't care and should swallow it.126 this._transport.on('error', () => {});127 for (const callback of this._callbacks.values())128 callback.reject(rewriteError(callback.error, `Protocol error (${callback.method}): Target closed.`));129 this._callbacks.clear();130 for (const session of this._sessions.values())131 session._onClosed();132 this._sessions.clear();133 }134 dispose() {135 this._onClose();136 this._transport.close();137 }138 /**139 * @param {string} targetId140 * @return {!Promise<!CDPSession>}141 */142 async createSession(targetId) {143 const {sessionId} = await this.send('Target.attachToTarget', {targetId});144 const session = new CDPSession(this, targetId, sessionId);145 this._sessions.set(sessionId, session);146 return session;147 }148}149class CDPSession extends EventEmitter {150 /**151 * @param {!Connection} connection152 * @param {string} targetId153 * @param {string} sessionId154 */155 constructor(connection, targetId, sessionId) {156 super();157 this._lastId = 0;158 /** @type {!Map<number, {resolve: function, reject: function, error: !Error, method: string}>}*/159 this._callbacks = new Map();160 this._connection = connection;161 this._targetId = targetId;162 this._sessionId = sessionId;163 }164 /**165 * @param {string} method166 * @param {!Object=} params167 * @return {!Promise<?Object>}168 */169 send(method, params = {}) {170 if (!this._connection)171 return Promise.reject(new Error(`Protocol error (${method}): Session closed. Most likely the page has been closed.`));172 const id = ++this._lastId;173 const message = JSON.stringify({id, method, params});174 debugSession('SEND ⺠' + message);175 this._connection.send('Target.sendMessageToTarget', {sessionId: this._sessionId, message}).catch(e => {176 // The response from target might have been already dispatched.177 if (!this._callbacks.has(id))178 return;179 const callback = this._callbacks.get(id);180 this._callbacks.delete(id);181 callback.reject(rewriteError(callback.error, e && e.message));182 });183 return new Promise((resolve, reject) => {184 this._callbacks.set(id, {resolve, reject, error: new Error(), method});185 });186 }187 /**188 * @param {string} message189 */190 _onMessage(message) {191 debugSession('â RECV ' + message);192 const object = JSON.parse(message);193 if (object.id && this._callbacks.has(object.id)) {194 const callback = this._callbacks.get(object.id);195 this._callbacks.delete(object.id);196 if (object.error)197 callback.reject(rewriteError(callback.error, `Protocol error (${callback.method}): ${object.error.message} ${object.error.data}`));198 else199 callback.resolve(object.result);200 } else {201 console.assert(!object.id);202 this.emit(object.method, object.params);203 }204 }205 async detach() {206 await this._connection.send('Target.detachFromTarget', {sessionId: this._sessionId});207 }208 _onClosed() {209 for (const callback of this._callbacks.values())210 callback.reject(rewriteError(callback.error, `Protocol error (${callback.method}): Target closed.`));211 this._callbacks.clear();212 this._connection = null;213 }214}215helper.tracePublicAPI(CDPSession);216/**217 * @param {!Error} error218 * @param {string} message219 * @return {!Error}220 */221function rewriteError(error, message) {222 error.message = message;223 return error;224}...
crExecutionContext.js
Source: crExecutionContext.js
...109 await (0, _crProtocolHelper.releaseObject)(this._client, objectId);110 }111}112exports.CRExecutionContext = CRExecutionContext;113function rewriteError(error) {114 if (error.message.includes('Object reference chain is too long')) return {115 result: {116 type: 'undefined'117 }118 };119 if (error.message.includes('Object couldn\'t be returned by value')) return {120 result: {121 type: 'undefined'122 }123 };124 if (error instanceof TypeError && error.message.startsWith('Converting circular structure to JSON')) (0, _stackTrace.rewriteErrorMessage)(error, error.message + ' Are you passing a nested JSHandle?');125 if (!js.isJavaScriptErrorInEvaluate(error) && !(0, _protocolError.isSessionClosedError)(error)) throw new Error('Execution context was destroyed, most likely because of a navigation.');126 throw error;127}...
ffExecutionContext.js
Source: ffExecutionContext.js
...104function checkException(exceptionDetails) {105 if (!exceptionDetails) return;106 if (exceptionDetails.value) throw new js.JavaScriptErrorInEvaluate(JSON.stringify(exceptionDetails.value));else throw new js.JavaScriptErrorInEvaluate(exceptionDetails.text + (exceptionDetails.stack ? '\n' + exceptionDetails.stack : ''));107}108function rewriteError(error) {109 if (error.message.includes('cyclic object value') || error.message.includes('Object is not serializable')) return {110 result: {111 type: 'undefined',112 value: undefined113 }114 };115 if (error instanceof TypeError && error.message.startsWith('Converting circular structure to JSON')) (0, _stackTrace.rewriteErrorMessage)(error, error.message + ' Are you passing a nested JSHandle?');116 if (!js.isJavaScriptErrorInEvaluate(error) && !(0, _protocolError.isSessionClosedError)(error)) throw new Error('Execution context was destroyed, most likely because of a navigation.');117 throw error;118}119function potentiallyUnserializableValue(remoteObject) {120 const value = remoteObject.value;121 const unserializableValue = remoteObject.unserializableValue;122 return unserializableValue ? js.parseUnserializableValue(unserializableValue) : value;...
wkExecutionContext.js
Source: wkExecutionContext.js
...40 });41 if (response.wasThrown) throw new js.JavaScriptErrorInEvaluate(response.result.description);42 return response.result.value;43 } catch (error) {44 throw rewriteError(error);45 }46 }47 async rawEvaluateHandle(expression) {48 try {49 const response = await this._session.send('Runtime.evaluate', {50 expression,51 contextId: this._contextId,52 returnByValue: false53 });54 if (response.wasThrown) throw new js.JavaScriptErrorInEvaluate(response.result.description);55 return response.result.objectId;56 } catch (error) {57 throw rewriteError(error);58 }59 }60 rawCallFunctionNoReply(func, ...args) {61 this._session.send('Runtime.callFunctionOn', {62 functionDeclaration: func.toString(),63 objectId: args.find(a => a instanceof js.JSHandle)._objectId,64 arguments: args.map(a => a instanceof js.JSHandle ? {65 objectId: a._objectId66 } : {67 value: a68 }),69 returnByValue: true,70 emulateUserGesture: true71 }).catch(() => {});72 }73 async evaluateWithArguments(expression, returnByValue, utilityScript, values, objectIds) {74 try {75 const response = await this._session.send('Runtime.callFunctionOn', {76 functionDeclaration: expression,77 objectId: utilityScript._objectId,78 arguments: [{79 objectId: utilityScript._objectId80 }, ...values.map(value => ({81 value82 })), ...objectIds.map(objectId => ({83 objectId84 }))],85 returnByValue,86 emulateUserGesture: true,87 awaitPromise: true88 });89 if (response.wasThrown) throw new js.JavaScriptErrorInEvaluate(response.result.description);90 if (returnByValue) return (0, _utilityScriptSerializers.parseEvaluationResultValue)(response.result.value);91 return utilityScript._context.createHandle(response.result);92 } catch (error) {93 throw rewriteError(error);94 }95 }96 async getProperties(context, objectId) {97 const response = await this._session.send('Runtime.getProperties', {98 objectId,99 ownProperties: true100 });101 const result = new Map();102 for (const property of response.properties) {103 if (!property.enumerable || !property.value) continue;104 result.set(property.name, context.createHandle(property.value));105 }106 return result;107 }108 createHandle(context, remoteObject) {109 const isPromise = remoteObject.className === 'Promise';110 return new js.JSHandle(context, isPromise ? 'promise' : remoteObject.subtype || remoteObject.type, renderPreview(remoteObject), remoteObject.objectId, potentiallyUnserializableValue(remoteObject));111 }112 async releaseHandle(objectId) {113 await this._session.send('Runtime.releaseObject', {114 objectId115 });116 }117}118exports.WKExecutionContext = WKExecutionContext;119function potentiallyUnserializableValue(remoteObject) {120 const value = remoteObject.value;121 const isUnserializable = remoteObject.type === 'number' && ['NaN', '-Infinity', 'Infinity', '-0'].includes(remoteObject.description);122 return isUnserializable ? js.parseUnserializableValue(remoteObject.description) : value;123}124function rewriteError(error) {125 if (!js.isJavaScriptErrorInEvaluate(error) && !(0, _protocolError.isSessionClosedError)(error)) return new Error('Execution context was destroyed, most likely because of a navigation.');126 return error;127}128function renderPreview(object) {129 if (object.type === 'undefined') return 'undefined';130 if ('value' in object) return String(object.value);131 if (object.description === 'Object' && object.preview) {132 const tokens = [];133 for (const {134 name,135 value136 } of object.preview.properties) tokens.push(`${name}: ${value}`);137 return `{${tokens.join(', ')}}`;138 }...
ExecutionContext.js
Source: ExecutionContext.js
...69 throw err;70 }71 const payload = await callFunctionPromise.catch(rewriteError);72 return createHandle(this, payload.result, payload.exceptionDetails);73 function rewriteError(error) {74 if (error.message.includes('Failed to find execution context with id'))75 throw new Error('Execution context was destroyed, most likely because of a navigation.');76 throw error;77 }78 }79 frame() {80 return this._frame;81 }82 async evaluate(pageFunction, ...args) {83 try {84 const handle = await this.evaluateHandle(pageFunction, ...args);85 const result = await handle.jsonValue();86 await handle.dispose();87 return result;...
logger.js
Source: logger.js
2import RavenWinston from 'raven-winston'3import { merge } from 'lodash'4import VError from 'verror'5import config from './config/environment'6function rewriteError(level, msg, meta) {7 const output = {}8 if (meta instanceof Error) {9 output.err = {10 stack: VError.fullStack(meta),11 message: meta.message,12 extra: meta.extra,13 }14 return output15 }16 Object.assign(output, meta)17 if (meta.err) {18 output.err = {19 stack: VError.fullStack(meta.err),20 message: meta.err.message,...
main.js
Source: main.js
...5import store from './store'6import {v4} from 'uuid';7Vue.prototype.$v4 = v4;8import rewriteError from './plugins/rewriteError'9rewriteError();10import 'iview/dist/styles/iview.css';11import {12 Button,13 ButtonGroup,14 Dropdown,15 DropdownItem,16 DropdownMenu,17 Input,18 Select,19 Option,20 Checkbox,21 CheckboxGroup,22 Page,23 Modal,...
httpError.js
Source: httpError.js
...11 status: res?.statusCode || err.statusCode,12 headers: res?.headers || err.headers,13 body: res?.text || err.text14 }15 const nerror = rewriteError({16 code: base.code,17 status: base.status,18 statusMessage: res?.statusMessage || err.statusMessage19 })20 nerror.requestError = true21 nerror.code = base.code22 nerror.status = base.status23 nerror.headers = base.headers24 nerror.body = base.body25 return nerror...
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 try {7 } catch (e) {8 console.log(e.rewriteError('Rewriting error'));9 }10 await browser.close();11})();12 at runMicrotasks (<anonymous>)13 at processTicksAndRejections (internal/process/task_queues.js:93:5)14const { chromium } = require('playwright');15(async () => {16 const browser = await chromium.launch();17 const context = await browser.newContext();18 const page = await context.newPage();19 try {20 } catch (e) {21 console.log(e.rewriteError('Rewriting error'));22 }23 await browser.close();24})();25 at runMicrotasks (<anonymous>)26 at processTicksAndRejections (internal/process/task_queues.js:93:5)27const { chromium } = require('playwright');28(async () => {29 const browser = await chromium.launch();30 const context = await browser.newContext();31 const page = await context.newPage();32 try {33 } catch (e) {34 console.log(e.rewriteError('Rewriting error'));35 }36 await browser.close();37})();38 at runMicrotasks (<anonymous>)39 at processTicksAndRejections (internal/process/task_queues.js:93:5
Using AI Code Generation
1const { Playwright } = require('@playwright/test');2const { rewriteError } = Playwright.InternalError;3const { expect } = require('@playwright/test');4const { test, expect } = require('@playwright/test');5test('test', async ({ page }) => {6 const error = new Error('Hello');7 ' at Script.runInThisContext (vm.js:133:18)\n' +8 ' at Object.runInThisContext (vm.js:310:38)\n' +9 ' at Object.<anonymous> (/Users/aslushnikov/Projects/playwright/test.js:1:1)\n' +10 ' at Module._compile (internal/modules/cjs/loader.js:1158:30)\n' +11 ' at Object.Module._extensions..js (internal/modules/cjs/loader.js:1178:10)\n' +12 ' at Module.load (internal/modules/cjs/loader.js:1002:32)\n' +13 ' at Function.Module._load (internal/modules/cjs/loader.js:901:14)\n' +14 ' at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:74:12)\n' +15 ' at internal/main/run_main_module.js:18:47';16 rewriteError(error);17 expect(error.stack).toContain('test.js');18});
Using AI Code Generation
1const { InternalError } = require('playwright/lib/utils/stackTrace');2InternalError.rewriteError = (error) => {3 }4 return error;5};6InternalError.rewriteError = (error) => {7 }8 return error;9};10InternalError.rewriteError = (error) => {11 }12 return error;13};14InternalError.rewriteError = (error) => {15 }16 return error;17};18InternalError.rewriteError = (error) => {
Using AI Code Generation
1const { rewriteError } = require('playwright/lib/utils/stackTrace');2const error = new Error('error message');3const rewrittenError = rewriteError(error, 'test.js');4console.log(rewrittenError.stack);5const { rewriteError } = require('playwright/lib/utils/stackTrace');6const error = new Error('error message');7const rewrittenError = rewriteError(error, 'test.js');8console.log(rewrittenError.stack);9### rewriteError(error, testFile)
Using AI Code Generation
1const { InternalError } = require('playwright/lib/internal/errors');2const { rewriteErrorMessage } = require('playwright/lib/internal/stackTrace');3const e = new InternalError('Error message');4console.log(rewriteErrorMessage(e, 'New error message'));5### `rewriteErrorMessage(error, message)`6### `rewriteErrorStack(error, message, stack)`
Using AI Code Generation
1const { rewriteError } = require('playwright/lib/utils/stackTrace');2const { rewriteError } = require('playwright/lib/utils/stackTrace');3const { test, expect } = require('@playwright/test');4test('test name', async ({ page }) => {5});6import { test, expect } from '@playwright/test';7test('test name', async ({ page }) => {8});
Jest + Playwright - Test callbacks of event-based DOM library
firefox browser does not start in playwright
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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
})
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