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How to use onInteractionTraced method in Playwright Internal
Best JavaScript code snippet using playwright-internal
TracingSubscriptions-test.internal.js
Source:TracingSubscriptions-test.internal.js 
1/**2 * Copyright (c) Facebook, Inc. and its affiliates.3 *4 * This source code is licensed under the MIT license found in the5 * LICENSE file in the root directory of this source tree.6 *7 * @jest-environment node8 */9'use strict';10describe('TracingSubscriptions', () => {11 let SchedulerTracing;12 let ReactFeatureFlags;13 let currentTime;14 let onInteractionScheduledWorkCompleted;15 let onInteractionTraced;16 let onWorkCanceled;17 let onWorkScheduled;18 let onWorkStarted;19 let onWorkStopped;20 let throwInOnInteractionScheduledWorkCompleted;21 let throwInOnInteractionTraced;22 let throwInOnWorkCanceled;23 let throwInOnWorkScheduled;24 let throwInOnWorkStarted;25 let throwInOnWorkStopped;26 let firstSubscriber;27 let secondSubscriber;28 const firstEvent = {id: 0, name: 'first', timestamp: 0};29 const secondEvent = {id: 1, name: 'second', timestamp: 0};30 const threadID = 123;31 function loadModules({enableSchedulerTracing, autoSubscribe = true}) {32 jest.resetModules();33 jest.useFakeTimers();34 currentTime = 0;35 ReactFeatureFlags = require('shared/ReactFeatureFlags');36 ReactFeatureFlags.enableSchedulerTracing = enableSchedulerTracing;37 SchedulerTracing = require('scheduler/tracing');38 throwInOnInteractionScheduledWorkCompleted = false;39 throwInOnInteractionTraced = false;40 throwInOnWorkCanceled = false;41 throwInOnWorkScheduled = false;42 throwInOnWorkStarted = false;43 throwInOnWorkStopped = false;44 onInteractionScheduledWorkCompleted = jest.fn(() => {45 if (throwInOnInteractionScheduledWorkCompleted) {46 throw Error('Expected error onInteractionScheduledWorkCompleted');47 }48 });49 onInteractionTraced = jest.fn(() => {50 if (throwInOnInteractionTraced) {51 throw Error('Expected error onInteractionTraced');52 }53 });54 onWorkCanceled = jest.fn(() => {55 if (throwInOnWorkCanceled) {56 throw Error('Expected error onWorkCanceled');57 }58 });59 onWorkScheduled = jest.fn(() => {60 if (throwInOnWorkScheduled) {61 throw Error('Expected error onWorkScheduled');62 }63 });64 onWorkStarted = jest.fn(() => {65 if (throwInOnWorkStarted) {66 throw Error('Expected error onWorkStarted');67 }68 });69 onWorkStopped = jest.fn(() => {70 if (throwInOnWorkStopped) {71 throw Error('Expected error onWorkStopped');72 }73 });74 firstSubscriber = {75 onInteractionScheduledWorkCompleted,76 onInteractionTraced,77 onWorkCanceled,78 onWorkScheduled,79 onWorkStarted,80 onWorkStopped,81 };82 secondSubscriber = {83 onInteractionScheduledWorkCompleted: jest.fn(),84 onInteractionTraced: jest.fn(),85 onWorkCanceled: jest.fn(),86 onWorkScheduled: jest.fn(),87 onWorkStarted: jest.fn(),88 onWorkStopped: jest.fn(),89 };90 if (autoSubscribe) {91 SchedulerTracing.unstable_subscribe(firstSubscriber);92 SchedulerTracing.unstable_subscribe(secondSubscriber);93 }94 }95 describe('enabled', () => {96 beforeEach(() => loadModules({enableSchedulerTracing: true}));97 it('should lazily subscribe to tracing and unsubscribe again if there are no external subscribers', () => {98 loadModules({enableSchedulerTracing: true, autoSubscribe: false});99 expect(SchedulerTracing.__subscriberRef.current).toBe(null);100 SchedulerTracing.unstable_subscribe(firstSubscriber);101 expect(SchedulerTracing.__subscriberRef.current).toBeDefined();102 SchedulerTracing.unstable_subscribe(secondSubscriber);103 expect(SchedulerTracing.__subscriberRef.current).toBeDefined();104 SchedulerTracing.unstable_unsubscribe(secondSubscriber);105 expect(SchedulerTracing.__subscriberRef.current).toBeDefined();106 SchedulerTracing.unstable_unsubscribe(firstSubscriber);107 expect(SchedulerTracing.__subscriberRef.current).toBe(null);108 });109 describe('error handling', () => {110 it('should cover onInteractionTraced/onWorkStarted within', done => {111 SchedulerTracing.unstable_trace(firstEvent.name, currentTime, () => {112 const mock = jest.fn();113 // It should call the callback before re-throwing114 throwInOnInteractionTraced = true;115 expect(() =>116 SchedulerTracing.unstable_trace(117 secondEvent.name,118 currentTime,119 mock,120 threadID,121 ),122 ).toThrow('Expected error onInteractionTraced');123 throwInOnInteractionTraced = false;124 expect(mock).toHaveBeenCalledTimes(1);125 throwInOnWorkStarted = true;126 expect(() =>127 SchedulerTracing.unstable_trace(128 secondEvent.name,129 currentTime,130 mock,131 threadID,132 ),133 ).toThrow('Expected error onWorkStarted');134 expect(mock).toHaveBeenCalledTimes(2);135 // It should restore the previous/outer interactions136 expect(SchedulerTracing.unstable_getCurrent()).toMatchInteractions([137 firstEvent,138 ]);139 // It should call other subscribers despite the earlier error140 expect(secondSubscriber.onInteractionTraced).toHaveBeenCalledTimes(3);141 expect(secondSubscriber.onWorkStarted).toHaveBeenCalledTimes(3);142 done();143 });144 });145 it('should cover onWorkStopped within trace', done => {146 SchedulerTracing.unstable_trace(firstEvent.name, currentTime, () => {147 let innerInteraction;148 const mock = jest.fn(() => {149 innerInteraction = Array.from(150 SchedulerTracing.unstable_getCurrent(),151 )[1];152 });153 throwInOnWorkStopped = true;154 expect(() =>155 SchedulerTracing.unstable_trace(156 secondEvent.name,157 currentTime,158 mock,159 ),160 ).toThrow('Expected error onWorkStopped');161 throwInOnWorkStopped = false;162 // It should restore the previous/outer interactions163 expect(SchedulerTracing.unstable_getCurrent()).toMatchInteractions([164 firstEvent,165 ]);166 // It should update the interaction count so as not to interfere with subsequent calls167 expect(innerInteraction.__count).toBe(0);168 // It should call other subscribers despite the earlier error169 expect(secondSubscriber.onWorkStopped).toHaveBeenCalledTimes(1);170 done();171 });172 });173 it('should cover onInteractionScheduledWorkCompleted within trace', done => {174 SchedulerTracing.unstable_trace(firstEvent.name, currentTime, () => {175 const mock = jest.fn();176 throwInOnInteractionScheduledWorkCompleted = true;177 expect(() =>178 SchedulerTracing.unstable_trace(179 secondEvent.name,180 currentTime,181 mock,182 ),183 ).toThrow('Expected error onInteractionScheduledWorkCompleted');184 throwInOnInteractionScheduledWorkCompleted = false;185 // It should restore the previous/outer interactions186 expect(SchedulerTracing.unstable_getCurrent()).toMatchInteractions([187 firstEvent,188 ]);189 // It should call other subscribers despite the earlier error190 expect(191 secondSubscriber.onInteractionScheduledWorkCompleted,192 ).toHaveBeenCalledTimes(1);193 done();194 });195 });196 it('should cover the callback within trace', done => {197 expect(onWorkStarted).not.toHaveBeenCalled();198 expect(onWorkStopped).not.toHaveBeenCalled();199 expect(() => {200 SchedulerTracing.unstable_trace(firstEvent.name, currentTime, () => {201 throw Error('Expected error callback');202 });203 }).toThrow('Expected error callback');204 expect(onWorkStarted).toHaveBeenCalledTimes(1);205 expect(onWorkStopped).toHaveBeenCalledTimes(1);206 done();207 });208 it('should cover onWorkScheduled within wrap', done => {209 SchedulerTracing.unstable_trace(firstEvent.name, currentTime, () => {210 const interaction = Array.from(211 SchedulerTracing.unstable_getCurrent(),212 )[0];213 const beforeCount = interaction.__count;214 throwInOnWorkScheduled = true;215 expect(() => SchedulerTracing.unstable_wrap(() => {})).toThrow(216 'Expected error onWorkScheduled',217 );218 // It should not update the interaction count so as not to interfere with subsequent calls219 expect(interaction.__count).toBe(beforeCount);220 // It should call other subscribers despite the earlier error221 expect(secondSubscriber.onWorkScheduled).toHaveBeenCalledTimes(1);222 done();223 });224 });225 it('should cover onWorkStarted within wrap', () => {226 const mock = jest.fn();227 let interaction, wrapped;228 SchedulerTracing.unstable_trace(firstEvent.name, currentTime, () => {229 interaction = Array.from(SchedulerTracing.unstable_getCurrent())[0];230 wrapped = SchedulerTracing.unstable_wrap(mock);231 });232 expect(interaction.__count).toBe(1);233 throwInOnWorkStarted = true;234 expect(wrapped).toThrow('Expected error onWorkStarted');235 // It should call the callback before re-throwing236 expect(mock).toHaveBeenCalledTimes(1);237 // It should update the interaction count so as not to interfere with subsequent calls238 expect(interaction.__count).toBe(0);239 // It should call other subscribers despite the earlier error240 expect(secondSubscriber.onWorkStarted).toHaveBeenCalledTimes(2);241 });242 it('should cover onWorkStopped within wrap', done => {243 SchedulerTracing.unstable_trace(firstEvent.name, currentTime, () => {244 const outerInteraction = Array.from(245 SchedulerTracing.unstable_getCurrent(),246 )[0];247 expect(outerInteraction.__count).toBe(1);248 let wrapped;249 let innerInteraction;250 SchedulerTracing.unstable_trace(secondEvent.name, currentTime, () => {251 innerInteraction = Array.from(252 SchedulerTracing.unstable_getCurrent(),253 )[1];254 expect(outerInteraction.__count).toBe(1);255 expect(innerInteraction.__count).toBe(1);256 wrapped = SchedulerTracing.unstable_wrap(jest.fn());257 expect(outerInteraction.__count).toBe(2);258 expect(innerInteraction.__count).toBe(2);259 });260 expect(outerInteraction.__count).toBe(2);261 expect(innerInteraction.__count).toBe(1);262 throwInOnWorkStopped = true;263 expect(wrapped).toThrow('Expected error onWorkStopped');264 throwInOnWorkStopped = false;265 // It should restore the previous interactions266 expect(SchedulerTracing.unstable_getCurrent()).toMatchInteractions([267 outerInteraction,268 ]);269 // It should update the interaction count so as not to interfere with subsequent calls270 expect(outerInteraction.__count).toBe(1);271 expect(innerInteraction.__count).toBe(0);272 expect(secondSubscriber.onWorkStopped).toHaveBeenCalledTimes(2);273 done();274 });275 });276 it('should cover the callback within wrap', done => {277 expect(onWorkStarted).not.toHaveBeenCalled();278 expect(onWorkStopped).not.toHaveBeenCalled();279 let wrapped;280 let interaction;281 SchedulerTracing.unstable_trace(firstEvent.name, currentTime, () => {282 interaction = Array.from(SchedulerTracing.unstable_getCurrent())[0];283 wrapped = SchedulerTracing.unstable_wrap(() => {284 throw Error('Expected error wrap');285 });286 });287 expect(onWorkStarted).toHaveBeenCalledTimes(1);288 expect(onWorkStopped).toHaveBeenCalledTimes(1);289 expect(wrapped).toThrow('Expected error wrap');290 expect(onWorkStarted).toHaveBeenCalledTimes(2);291 expect(onWorkStopped).toHaveBeenCalledTimes(2);292 expect(onWorkStopped).toHaveBeenLastNotifiedOfWork([interaction]);293 done();294 });295 it('should cover onWorkCanceled within wrap', () => {296 let interaction, wrapped;297 SchedulerTracing.unstable_trace(firstEvent.name, currentTime, () => {298 interaction = Array.from(SchedulerTracing.unstable_getCurrent())[0];299 wrapped = SchedulerTracing.unstable_wrap(jest.fn());300 });301 expect(interaction.__count).toBe(1);302 throwInOnWorkCanceled = true;303 expect(wrapped.cancel).toThrow('Expected error onWorkCanceled');304 expect(onWorkCanceled).toHaveBeenCalledTimes(1);305 // It should update the interaction count so as not to interfere with subsequent calls306 expect(interaction.__count).toBe(0);307 expect(308 onInteractionScheduledWorkCompleted,309 ).toHaveBeenLastNotifiedOfInteraction(firstEvent);310 // It should call other subscribers despite the earlier error311 expect(secondSubscriber.onWorkCanceled).toHaveBeenCalledTimes(1);312 });313 });314 it('calls lifecycle methods for trace', () => {315 expect(onInteractionTraced).not.toHaveBeenCalled();316 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();317 SchedulerTracing.unstable_trace(318 firstEvent.name,319 currentTime,320 () => {321 expect(onInteractionTraced).toHaveBeenCalledTimes(1);322 expect(onInteractionTraced).toHaveBeenLastNotifiedOfInteraction(323 firstEvent,324 );325 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();326 expect(onWorkStarted).toHaveBeenCalledTimes(1);327 expect(onWorkStarted).toHaveBeenLastNotifiedOfWork(328 new Set([firstEvent]),329 threadID,330 );331 expect(onWorkStopped).not.toHaveBeenCalled();332 SchedulerTracing.unstable_trace(333 secondEvent.name,334 currentTime,335 () => {336 expect(onInteractionTraced).toHaveBeenCalledTimes(2);337 expect(onInteractionTraced).toHaveBeenLastNotifiedOfInteraction(338 secondEvent,339 );340 expect(341 onInteractionScheduledWorkCompleted,342 ).not.toHaveBeenCalled();343 expect(onWorkStarted).toHaveBeenCalledTimes(2);344 expect(onWorkStarted).toHaveBeenLastNotifiedOfWork(345 new Set([firstEvent, secondEvent]),346 threadID,347 );348 expect(onWorkStopped).not.toHaveBeenCalled();349 },350 threadID,351 );352 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);353 expect(354 onInteractionScheduledWorkCompleted,355 ).toHaveBeenLastNotifiedOfInteraction(secondEvent);356 expect(onWorkStopped).toHaveBeenCalledTimes(1);357 expect(onWorkStopped).toHaveBeenLastNotifiedOfWork(358 new Set([firstEvent, secondEvent]),359 threadID,360 );361 },362 threadID,363 );364 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(2);365 expect(366 onInteractionScheduledWorkCompleted,367 ).toHaveBeenLastNotifiedOfInteraction(firstEvent);368 expect(onWorkScheduled).not.toHaveBeenCalled();369 expect(onWorkCanceled).not.toHaveBeenCalled();370 expect(onWorkStarted).toHaveBeenCalledTimes(2);371 expect(onWorkStopped).toHaveBeenCalledTimes(2);372 expect(onWorkStopped).toHaveBeenLastNotifiedOfWork(373 new Set([firstEvent]),374 threadID,375 );376 });377 it('calls lifecycle methods for wrap', () => {378 const unwrapped = jest.fn();379 let wrapped;380 SchedulerTracing.unstable_trace(firstEvent.name, currentTime, () => {381 expect(onInteractionTraced).toHaveBeenCalledTimes(1);382 expect(onInteractionTraced).toHaveBeenLastNotifiedOfInteraction(383 firstEvent,384 );385 SchedulerTracing.unstable_trace(secondEvent.name, currentTime, () => {386 expect(onInteractionTraced).toHaveBeenCalledTimes(2);387 expect(onInteractionTraced).toHaveBeenLastNotifiedOfInteraction(388 secondEvent,389 );390 wrapped = SchedulerTracing.unstable_wrap(unwrapped, threadID);391 expect(onWorkScheduled).toHaveBeenCalledTimes(1);392 expect(onWorkScheduled).toHaveBeenLastNotifiedOfWork(393 new Set([firstEvent, secondEvent]),394 threadID,395 );396 });397 });398 expect(onInteractionTraced).toHaveBeenCalledTimes(2);399 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();400 wrapped();401 expect(unwrapped).toHaveBeenCalled();402 expect(onWorkScheduled).toHaveBeenCalledTimes(1);403 expect(onWorkCanceled).not.toHaveBeenCalled();404 expect(onWorkStarted).toHaveBeenCalledTimes(3);405 expect(onWorkStarted).toHaveBeenLastNotifiedOfWork(406 new Set([firstEvent, secondEvent]),407 threadID,408 );409 expect(onWorkStopped).toHaveBeenCalledTimes(3);410 expect(onWorkStopped).toHaveBeenLastNotifiedOfWork(411 new Set([firstEvent, secondEvent]),412 threadID,413 );414 expect(415 onInteractionScheduledWorkCompleted.mock.calls[0][0],416 ).toMatchInteraction(firstEvent);417 expect(418 onInteractionScheduledWorkCompleted.mock.calls[1][0],419 ).toMatchInteraction(secondEvent);420 });421 it('should call the correct interaction subscriber methods when a wrapped callback is canceled', () => {422 const fnOne = jest.fn();423 const fnTwo = jest.fn();424 let wrappedOne, wrappedTwo;425 SchedulerTracing.unstable_trace(firstEvent.name, currentTime, () => {426 wrappedOne = SchedulerTracing.unstable_wrap(fnOne, threadID);427 SchedulerTracing.unstable_trace(secondEvent.name, currentTime, () => {428 wrappedTwo = SchedulerTracing.unstable_wrap(fnTwo, threadID);429 });430 });431 expect(onInteractionTraced).toHaveBeenCalledTimes(2);432 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();433 expect(onWorkCanceled).not.toHaveBeenCalled();434 expect(onWorkStarted).toHaveBeenCalledTimes(2);435 expect(onWorkStopped).toHaveBeenCalledTimes(2);436 wrappedTwo.cancel();437 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);438 expect(439 onInteractionScheduledWorkCompleted,440 ).toHaveBeenLastNotifiedOfInteraction(secondEvent);441 expect(onWorkCanceled).toHaveBeenCalledTimes(1);442 expect(onWorkCanceled).toHaveBeenLastNotifiedOfWork(443 new Set([firstEvent, secondEvent]),444 threadID,445 );446 wrappedOne.cancel();447 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(2);448 expect(449 onInteractionScheduledWorkCompleted,450 ).toHaveBeenLastNotifiedOfInteraction(firstEvent);451 expect(onWorkCanceled).toHaveBeenCalledTimes(2);452 expect(onWorkCanceled).toHaveBeenLastNotifiedOfWork(453 new Set([firstEvent]),454 threadID,455 );456 expect(fnOne).not.toHaveBeenCalled();457 expect(fnTwo).not.toHaveBeenCalled();458 });459 it('should not end an interaction twice if wrap is used to schedule follow up work within another wrap', () => {460 const fnOne = jest.fn(() => {461 wrappedTwo = SchedulerTracing.unstable_wrap(fnTwo, threadID);462 });463 const fnTwo = jest.fn();464 let wrappedOne, wrappedTwo;465 SchedulerTracing.unstable_trace(firstEvent.name, currentTime, () => {466 wrappedOne = SchedulerTracing.unstable_wrap(fnOne, threadID);467 });468 expect(onInteractionTraced).toHaveBeenCalledTimes(1);469 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();470 wrappedOne();471 expect(onInteractionTraced).toHaveBeenCalledTimes(1);472 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();473 wrappedTwo();474 expect(onInteractionTraced).toHaveBeenCalledTimes(1);475 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);476 expect(477 onInteractionScheduledWorkCompleted,478 ).toHaveBeenLastNotifiedOfInteraction(firstEvent);479 });480 it('should not decrement the interaction count twice if a wrapped function is run twice', () => {481 const unwrappedOne = jest.fn();482 const unwrappedTwo = jest.fn();483 let wrappedOne, wrappedTwo;484 SchedulerTracing.unstable_trace(firstEvent.name, currentTime, () => {485 wrappedOne = SchedulerTracing.unstable_wrap(unwrappedOne, threadID);486 wrappedTwo = SchedulerTracing.unstable_wrap(unwrappedTwo, threadID);487 });488 expect(onInteractionTraced).toHaveBeenCalledTimes(1);489 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();490 wrappedOne();491 expect(unwrappedOne).toHaveBeenCalledTimes(1);492 expect(onInteractionTraced).toHaveBeenCalledTimes(1);493 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();494 wrappedOne();495 expect(unwrappedOne).toHaveBeenCalledTimes(2);496 expect(onInteractionTraced).toHaveBeenCalledTimes(1);497 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();498 wrappedTwo();499 expect(onInteractionTraced).toHaveBeenCalledTimes(1);500 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);501 expect(502 onInteractionScheduledWorkCompleted,503 ).toHaveBeenLastNotifiedOfInteraction(firstEvent);504 });505 it('should unsubscribe', () => {506 SchedulerTracing.unstable_unsubscribe(firstSubscriber);507 SchedulerTracing.unstable_trace(firstEvent.name, currentTime, () => {});508 expect(onInteractionTraced).not.toHaveBeenCalled();509 });510 });511 describe('disabled', () => {512 beforeEach(() => loadModules({enableSchedulerTracing: false}));513 // TODO514 });...
ReactProfilerDOM-test.internal.js
Source:ReactProfilerDOM-test.internal.js
1/**2 * Copyright (c) Facebook, Inc. and its affiliates.3 *4 * This source code is licensed under the MIT license found in the5 * LICENSE file in the root directory of this source tree.6 *7 * @emails react-core8 */9'use strict';10let React;11let ReactFeatureFlags;12let ReactDOM;13let SchedulerTracing;14let Scheduler;15function loadModules() {16 ReactFeatureFlags = require('shared/ReactFeatureFlags');17 ReactFeatureFlags.enableProfilerTimer = true;18 ReactFeatureFlags.enableSchedulerTracing = true;19 React = require('react');20 SchedulerTracing = require('scheduler/tracing');21 ReactDOM = require('react-dom');22 Scheduler = require('scheduler');23}24describe('ProfilerDOM', () => {25 let onInteractionScheduledWorkCompleted;26 let onInteractionTraced;27 beforeEach(() => {28 loadModules();29 onInteractionScheduledWorkCompleted = jest.fn();30 onInteractionTraced = jest.fn();31 // Verify interaction subscriber methods are called as expected.32 SchedulerTracing.unstable_subscribe({33 onInteractionScheduledWorkCompleted,34 onInteractionTraced,35 onWorkCanceled: () => {},36 onWorkScheduled: () => {},37 onWorkStarted: () => {},38 onWorkStopped: () => {},39 });40 });41 function Text(props) {42 Scheduler.unstable_yieldValue(props.text);43 return props.text;44 }45 // @gate experimental46 it('should correctly trace interactions for async roots', async () => {47 let resolve;48 let thenable = {49 then(res) {50 resolve = () => {51 thenable = null;52 res();53 };54 },55 };56 function Async() {57 if (thenable !== null) {58 Scheduler.unstable_yieldValue('Suspend! [Async]');59 throw thenable;60 }61 Scheduler.unstable_yieldValue('Async');62 return 'Async';63 }64 const element = document.createElement('div');65 const root = ReactDOM.createRoot(element);66 let interaction;67 let wrappedResolve;68 SchedulerTracing.unstable_trace('initial_event', performance.now(), () => {69 const interactions = SchedulerTracing.unstable_getCurrent();70 expect(interactions.size).toBe(1);71 interaction = Array.from(interactions)[0];72 root.render(73 <React.Suspense fallback={<Text text="Loading..." />}>74 <Async />75 </React.Suspense>,76 );77 wrappedResolve = SchedulerTracing.unstable_wrap(() => resolve());78 });79 // Render, suspend, and commit fallback80 expect(Scheduler).toFlushAndYield(['Suspend! [Async]', 'Loading...']);81 expect(element.textContent).toEqual('Loading...');82 expect(onInteractionTraced).toHaveBeenCalledTimes(1);83 expect(onInteractionTraced).toHaveBeenLastNotifiedOfInteraction(84 interaction,85 );86 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();87 // Ping React to try rendering again88 wrappedResolve();89 // Complete the tree without committing it90 expect(Scheduler).toFlushAndYieldThrough(['Async']);91 // Still showing the fallback92 expect(element.textContent).toEqual('Loading...');93 expect(onInteractionTraced).toHaveBeenCalledTimes(1);94 expect(onInteractionTraced).toHaveBeenLastNotifiedOfInteraction(95 interaction,96 );97 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();98 expect(Scheduler).toFlushAndYield([]);99 expect(element.textContent).toEqual('Async');100 expect(onInteractionTraced).toHaveBeenCalledTimes(1);101 expect(onInteractionTraced).toHaveBeenLastNotifiedOfInteraction(102 interaction,103 );104 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);105 });...
Using AI Code Generation
1const playwright = require('playwright');2(async () => {3 const browser = await playwright.chromium.launch({ headless: false });4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.click('text=Get started');7 await browser.close();8})();9const playwright = require('playwright');10(async () => {11 const browser = await playwright.chromium.launch({ headless: false });12 const context = await browser.newContext();13 const page = await context.newPage();14 await page.click('text=Get started');15 await browser.close();16})();17const playwright = require('playwright');18(async () => {19 const browser = await playwright.chromium.launch({ headless: false });20 const context = await browser.newContext();21 const page = await context.newPage();22 await page.click('text=Get started');23 await browser.close();24})();25const playwright = require('playwright');26(async () => {27 const browser = await playwright.chromium.launch({ headless: false });28 const context = await browser.newContext();29 const page = await context.newPage();30 await page.click('text=Get started');31 await browser.close();32})();33const playwright = require('playwright');34(async () => {35 const browser = await playwright.chromium.launch({ headless: false });36 const context = await browser.newContext();37 const page = await context.newPage();38 await page.click('text=Get started');39 await browser.close();40})();41const playwright = require('playwright');42(async () => {43 const browser = await playwright.chromium.launch({ headless: false });44 const context = await browser.newContext();45 const page = await context.newPage();46 await page.click('text
Using AI Code Generation
1const playwright = require('playwright');2(async () => {3 const browser = await playwright.chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.tracing.start({ screenshots: true, snapshots: true });7 await page.tracing.stop({ path: 'trace.zip' });8 await browser.close();9})();
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch({4 });5 const context = await browser.newContext();6 const page = await context.newPage();7 await page.screenshot({ path: `example.png` });8 await browser.close();9})();10const { chromium } = require('playwright');11(async () => {12 const browser = await chromium.launch({13 });14 const context = await browser.newContext();15 const page = await context.newPage();16 await page.screenshot({ path: `example.png` });17 await browser.close();18})();19 at CDPSession.send (C:\Users\kajal\Desktop\Playwright\playwright\lib\protocol\connection.js:193:15)20 at CDPSession.send (C:\Users\kajal\Desktop\Playwright\playwright\lib\protocol\connection.js:196:19)21 at ExecutionContext._evaluateInternal (C:\Users\kajal\Desktop\Playwright\playwright\lib\dom.js:94:29)22 at ExecutionContext.evaluate (C:\Users\kajal\Desktop\Playwright\playwright\lib\dom.js:20:17)23 at ExecutionContext.evaluate (C:\Users\kajal\Desktop\Playwright\playwright\lib\dom.js:26:15)24 at Page.evaluate (C:\Users\kajal\Desktop\Playwright\playwright\lib\dom.js:140:33)25 at Page.evaluate (C:\Users\kajal\Desktop\Playwright\playwright\lib\dom.js:146:15)26 at Page._runAbortableTask (C:\Users\kajal\Desktop\Playwright\playwright\lib\page.js:229:12)27 at Page.screenshot (C:\Users\kajal\Desktop
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 await page.route('**/*', route => {7 console.log(route.request().url());8 route.continue();9 });10 await browser.close();11})();
Using AI Code Generation
1const { Playwright } = require('playwright');2const playwright = new Playwright();3const browser = await playwright.chromium.launch();4const context = await browser.newContext();5const page = await context.newPage();6const trace = await page.startTracing(page, 'trace.json');7await page.setContent('<html><body><div>Hi</div></body></html>');8await page.click('div');9await trace.stop();10await browser.close();11const { Playwright } = require('playwright');12const playwright = new Playwright();13const browser = await playwright.chromium.launch();14const context = await browser.newContext();15const page = await context.newPage();16const trace = await page.startTracing(page, 'trace.json');17await page.setContent('<html><body><div>Hi</div></body></html>');18await page.click('div');19await trace.stop();20await browser.close();21const { Playwright } = require('playwright');22const playwright = new Playwright();23const browser = await playwright.chromium.launch();24const context = await browser.newContext();25const page = await context.newPage();26const trace = await page.startTracing(page, 'trace.json');27await page.setContent('<html><body><div>Hi</div></body></html>');28await page.click('div');29await trace.stop();30await browser.close();31const { Playwright } = require('playwright');32const playwright = new Playwright();33const browser = await playwright.chromium.launch();34const context = await browser.newContext();35const page = await context.newPage();36const trace = await page.startTracing(page, 'trace.json');37await page.setContent('<html><body><div>Hi</div></body></html>');38await page.click('div');39await trace.stop();40await browser.close();41const { Playwright } = require('playwright');42const playwright = new Playwright();43const browser = await playwright.chromium.launch();44const context = await browser.newContext();
Using AI Code Generation
1import { test, expect } from "@playwright/test";2import { PlaywrightTestConfig } from "@playwright/test/types/test";3import { PlaywrightTestArgs } from "@playwright/test/types/args";4import { PlaywrightTestOptions } from "@playwright/test/types/options";5import { PlaywrightTestArgsInternal } from "@playwright/test/types/testArgs";6import { PlaywrightTestOptionsInternal } from "@playwright/test/types/testOptions";7import { PlaywrightTestConfigInternal } from "@playwright/test/types/testConfig";8import { PlaywrightTestOptions } from "@playwright/test/types/options";9import { PlaywrightTestArgs } from "@playwright/test/types/args";10import { PlaywrightTestConfig } from "@playwright/test/types/test";11import { PlaywrightTestOptionsInternal } from "@playwright/test/types/testOptions";12import { PlaywrightTestArgsInternal } from "@playwright/test/types/testArgs";13import { PlaywrightTestConfigInternal } from "@playwright/test/types/testConfig";14import { PlaywrightTestOptions } from "@playwright/test/types/options";15import { PlaywrightTestArgs } from "@playwright/test/types/args";16import { PlaywrightTestConfig } from "@playwright/test/types/test";17import { PlaywrightTestOptionsInternal } from "@playwright/test/types/testOptions";18import { PlaywrightTestArgsInternal } from "@playwright/test/types/testArgs";19import { PlaywrightTestConfigInternal } from "@playwright/test/types/testConfig";20import { PlaywrightTestOptions } from "@playwright/test/types/options";21import { PlaywrightTestArgs } from "@playwright/test/types/args";22import { PlaywrightTestConfig } from "@playwright/test/types/test";23import { PlaywrightTestOptionsInternal } from "@playwright/test/types/testOptions";24import { PlaywrightTestArgsInternal } from "@playwright/test/types/testArgs";25import { PlaywrightTestConfigInternal } from "@playwright/test/types/testConfig";26import { PlaywrightTestOptions } from "@playwright/test/types/options";27import { PlaywrightTestArgs } from "@playwright/test/types/args";28import { PlaywrightTestConfig } from "@playwright/test/types/test";29import { PlaywrightTestOptionsInternal } from "@playwright/test/types/testOptions";30import { PlaywrightTestArgsInternal } from "@playwright/test/types/testArgs";31import { PlaywrightTestConfigInternal } from "@playwright/test/types/testConfig";
Using AI Code Generation
1const playwright = require('playwright');2const fs = require('fs');3const path = require('path');4(async () => {5 const browser = await playwright.chromium.launch({6 });7 const context = await browser.newContext();8 const page = await context.newPage();9 page.on('framenavigated', (frame) => {10 console.log(frame.url());11 });12 const tracePath = path.join(__dirname, 'trace.json');13 const traceStream = fs.createWriteStream(tracePath);14 await page.tracing.start({ screenshots: true, snapshots: true });15 await page.tracing.stop();16 const trace = await page.evaluate(() => JSON.stringify(window.__playwrightTracerEvents));17 traceStream.write(trace);18 traceStream.end();19 await browser.close();20})();21{22 {23 "args": {24 "data": {25 }26 }27 },28 {29 "args": {30 "data": {31 }32 }33 },34 {35 "args": {36 "data": {37 }38 }39 },40 {
Using AI Code Generation
1const { interactionTracer } = require('playwright');2const { trace } = require('playwright/lib/internal/trace/recorder/trace');3const traceEvents = [];4interactionTracer.onInteractionTraced(trace => {5 traceEvents.push(trace);6});7const { interactionTracer } = require('playwright');8const { trace } = require('playwright/lib/internal/trace/recorder/trace');9const traceEvents = [];10interactionTracer.onInteractionTraced(trace => {11 traceEvents.push(trace);12});13const { interactionTracer } = require('playwright');14const { trace } = require('playwright/lib/internal/trace/recorder/trace');15const traceEvents = [];16interactionTracer.onInteractionTraced(trace => {17 traceEvents.push(trace);18});19const { interactionTracer } = require('playwright');20const { trace } = require('playwright/lib/internal/trace/recorder/trace');21const traceEvents = [];22interactionTracer.onInteractionTraced(trace => {23 traceEvents.push(trace);24});25const { interactionTracer } = require('playwright');26const { trace } = require('playwright/lib/internal/trace/recorder/trace');27const traceEvents = [];28interactionTracer.onInteractionTraced(trace => {29 traceEvents.push(trace);30});31const { interactionTracer } = require('playwright');32const { trace } = require('playwright/lib/internal/trace/recorder/trace');33const traceEvents = [];34interactionTracer.onInteractionTraced(trace => {35 traceEvents.push(trace);36});37const { interactionTracer } = require('playwright');38const { trace } = require('playwright/lib/internal/trace/recorder/trace');39const traceEvents = [];40interactionTracer.onInteractionTraced(trace => {41 traceEvents.push(trace);42});43const { interactionTracer } = require('playwright');44const { trace } = require('playwright/lib/internal/trace/recorder/
Playwright tutorial
LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.
Chapters:
- What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
- How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
- Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
- What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
- Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
- Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
- Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
- Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
- Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
- Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
- Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
- Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.
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