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How to use onInteractionScheduledWorkCompleted method in Playwright Internal
Best JavaScript code snippet using playwright-internal
ReactDOMTracing-test.internal.js
Source:ReactDOMTracing-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 ReactDOM;12let ReactDOMServer;13let ReactFeatureFlags;14let Scheduler;15let SchedulerTracing;16let TestUtils;17let onInteractionScheduledWorkCompleted;18let onInteractionTraced;19let onWorkCanceled;20let onWorkScheduled;21let onWorkStarted;22let onWorkStopped;23function loadModules() {24 ReactFeatureFlags = require('shared/ReactFeatureFlags');25 ReactFeatureFlags.debugRenderPhaseSideEffectsForStrictMode = false;26 ReactFeatureFlags.enableProfilerTimer = true;27 ReactFeatureFlags.enableSchedulerTracing = true;28 ReactFeatureFlags.replayFailedUnitOfWorkWithInvokeGuardedCallback = false;29 React = require('react');30 ReactDOM = require('react-dom');31 ReactDOMServer = require('react-dom/server');32 Scheduler = require('scheduler');33 SchedulerTracing = require('scheduler/tracing');34 TestUtils = require('react-dom/test-utils');35 onInteractionScheduledWorkCompleted = jest.fn();36 onInteractionTraced = jest.fn();37 onWorkCanceled = jest.fn();38 onWorkScheduled = jest.fn();39 onWorkStarted = jest.fn();40 onWorkStopped = jest.fn();41 // Verify interaction subscriber methods are called as expected.42 SchedulerTracing.unstable_subscribe({43 onInteractionScheduledWorkCompleted,44 onInteractionTraced,45 onWorkCanceled,46 onWorkScheduled,47 onWorkStarted,48 onWorkStopped,49 });50}51describe('ReactDOMTracing', () => {52 beforeEach(() => {53 jest.resetModules();54 loadModules();55 });56 if (!__EXPERIMENTAL__) {57 it("empty test so Jest doesn't complain", () => {});58 return;59 }60 describe('interaction tracing', () => {61 describe('hidden', () => {62 it('traces interaction through hidden subtree', () => {63 const Child = () => {64 const [didMount, setDidMount] = React.useState(false);65 Scheduler.unstable_yieldValue('Child');66 React.useEffect(() => {67 if (didMount) {68 Scheduler.unstable_yieldValue('Child:update');69 } else {70 Scheduler.unstable_yieldValue('Child:mount');71 setDidMount(true);72 }73 }, [didMount]);74 return <div />;75 };76 const App = () => {77 Scheduler.unstable_yieldValue('App');78 React.useEffect(() => {79 Scheduler.unstable_yieldValue('App:mount');80 }, []);81 return (82 <div hidden={true}>83 <Child />84 </div>85 );86 };87 let interaction;88 const onRender = jest.fn();89 const container = document.createElement('div');90 const root = ReactDOM.createRoot(container);91 SchedulerTracing.unstable_trace('initialization', 0, () => {92 interaction = Array.from(SchedulerTracing.unstable_getCurrent())[0];93 TestUtils.act(() => {94 root.render(95 <React.Profiler id="test" onRender={onRender}>96 <App />97 </React.Profiler>,98 );99 expect(onInteractionTraced).toHaveBeenCalledTimes(1);100 expect(onInteractionTraced).toHaveBeenLastNotifiedOfInteraction(101 interaction,102 );103 expect(Scheduler).toFlushAndYieldThrough(['App', 'App:mount']);104 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();105 expect(onRender).toHaveBeenCalledTimes(1);106 expect(onRender).toHaveLastRenderedWithInteractions(107 new Set([interaction]),108 );109 expect(Scheduler).toFlushAndYieldThrough(['Child', 'Child:mount']);110 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();111 expect(onRender).toHaveBeenCalledTimes(2);112 expect(onRender).toHaveLastRenderedWithInteractions(113 new Set([interaction]),114 );115 expect(Scheduler).toFlushAndYield(['Child', 'Child:update']);116 });117 });118 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);119 expect(120 onInteractionScheduledWorkCompleted,121 ).toHaveBeenLastNotifiedOfInteraction(interaction);122 // TODO: This is 4 instead of 3 because this update was scheduled at123 // idle priority, and idle updates are slightly higher priority than124 // offscreen work. So it takes two render passes to finish it. Profiler125 // calls `onRender` for the first render even though everything126 // bails out.127 expect(onRender).toHaveBeenCalledTimes(4);128 expect(onRender).toHaveLastRenderedWithInteractions(129 new Set([interaction]),130 );131 });132 it('traces interaction through hidden subtree when there is other pending traced work', () => {133 const Child = () => {134 Scheduler.unstable_yieldValue('Child');135 return <div />;136 };137 let wrapped = null;138 const App = () => {139 Scheduler.unstable_yieldValue('App');140 React.useEffect(() => {141 wrapped = SchedulerTracing.unstable_wrap(() => {});142 Scheduler.unstable_yieldValue('App:mount');143 }, []);144 return (145 <div hidden={true}>146 <Child />147 </div>148 );149 };150 let interaction;151 const onRender = jest.fn();152 const container = document.createElement('div');153 const root = ReactDOM.createRoot(container);154 SchedulerTracing.unstable_trace('initialization', 0, () => {155 interaction = Array.from(SchedulerTracing.unstable_getCurrent())[0];156 TestUtils.act(() => {157 root.render(158 <React.Profiler id="test" onRender={onRender}>159 <App />160 </React.Profiler>,161 );162 expect(onInteractionTraced).toHaveBeenCalledTimes(1);163 expect(onInteractionTraced).toHaveBeenLastNotifiedOfInteraction(164 interaction,165 );166 expect(Scheduler).toFlushAndYieldThrough(['App', 'App:mount']);167 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();168 expect(onRender).toHaveBeenCalledTimes(1);169 expect(onRender).toHaveLastRenderedWithInteractions(170 new Set([interaction]),171 );172 expect(wrapped).not.toBeNull();173 expect(Scheduler).toFlushAndYield(['Child']);174 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();175 expect(onRender).toHaveBeenCalledTimes(2);176 expect(onRender).toHaveLastRenderedWithInteractions(177 new Set([interaction]),178 );179 });180 });181 wrapped();182 expect(onInteractionTraced).toHaveBeenCalledTimes(1);183 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);184 expect(185 onInteractionScheduledWorkCompleted,186 ).toHaveBeenLastNotifiedOfInteraction(interaction);187 });188 it('traces interaction through hidden subtree that schedules more idle/never work', () => {189 const Child = () => {190 const [didMount, setDidMount] = React.useState(false);191 Scheduler.unstable_yieldValue('Child');192 React.useLayoutEffect(() => {193 if (didMount) {194 Scheduler.unstable_yieldValue('Child:update');195 } else {196 Scheduler.unstable_yieldValue('Child:mount');197 Scheduler.unstable_runWithPriority(198 Scheduler.unstable_IdlePriority,199 () => setDidMount(true),200 );201 }202 }, [didMount]);203 return <div />;204 };205 const App = () => {206 Scheduler.unstable_yieldValue('App');207 React.useEffect(() => {208 Scheduler.unstable_yieldValue('App:mount');209 }, []);210 return (211 <div hidden={true}>212 <Child />213 </div>214 );215 };216 let interaction;217 const onRender = jest.fn();218 const container = document.createElement('div');219 const root = ReactDOM.createRoot(container);220 SchedulerTracing.unstable_trace('initialization', 0, () => {221 interaction = Array.from(SchedulerTracing.unstable_getCurrent())[0];222 TestUtils.act(() => {223 root.render(224 <React.Profiler id="test" onRender={onRender}>225 <App />226 </React.Profiler>,227 );228 expect(onInteractionTraced).toHaveBeenCalledTimes(1);229 expect(onInteractionTraced).toHaveBeenLastNotifiedOfInteraction(230 interaction,231 );232 expect(Scheduler).toFlushAndYieldThrough(['App', 'App:mount']);233 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();234 expect(onRender).toHaveBeenCalledTimes(1);235 expect(onRender).toHaveLastRenderedWithInteractions(236 new Set([interaction]),237 );238 expect(Scheduler).toFlushAndYieldThrough(['Child', 'Child:mount']);239 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();240 expect(onRender).toHaveBeenCalledTimes(2);241 expect(onRender).toHaveLastRenderedWithInteractions(242 new Set([interaction]),243 );244 expect(Scheduler).toFlushAndYield(['Child', 'Child:update']);245 });246 });247 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);248 expect(249 onInteractionScheduledWorkCompleted,250 ).toHaveBeenLastNotifiedOfInteraction(interaction);251 // TODO: This is 4 instead of 3 because this update was scheduled at252 // idle priority, and idle updates are slightly higher priority than253 // offscreen work. So it takes two render passes to finish it. Profiler254 // calls `onRender` for the first render even though everything255 // bails out.256 expect(onRender).toHaveBeenCalledTimes(4);257 expect(onRender).toHaveLastRenderedWithInteractions(258 new Set([interaction]),259 );260 });261 it('does not continue interactions across pre-existing idle work', () => {262 const Child = () => {263 Scheduler.unstable_yieldValue('Child');264 return <div />;265 };266 let update = null;267 const WithHiddenWork = () => {268 Scheduler.unstable_yieldValue('WithHiddenWork');269 return (270 <div hidden={true}>271 <Child />272 </div>273 );274 };275 const Updater = () => {276 Scheduler.unstable_yieldValue('Updater');277 React.useEffect(() => {278 Scheduler.unstable_yieldValue('Updater:effect');279 });280 const setCount = React.useState(0)[1];281 update = () => {282 setCount(current => current + 1);283 };284 return <div />;285 };286 const App = () => {287 Scheduler.unstable_yieldValue('App');288 React.useEffect(() => {289 Scheduler.unstable_yieldValue('App:effect');290 });291 return (292 <>293 <WithHiddenWork />294 <Updater />295 </>296 );297 };298 const onRender = jest.fn();299 const container = document.createElement('div');300 const root = ReactDOM.createRoot(container);301 // Schedule some idle work without any interactions.302 TestUtils.act(() => {303 root.render(304 <React.Profiler id="test" onRender={onRender}>305 <App />306 </React.Profiler>,307 );308 expect(Scheduler).toFlushAndYieldThrough([309 'App',310 'WithHiddenWork',311 'Updater',312 'Updater:effect',313 'App:effect',314 ]);315 expect(update).not.toBeNull();316 // Trace a higher-priority update.317 let interaction = null;318 SchedulerTracing.unstable_trace('update', 0, () => {319 interaction = Array.from(SchedulerTracing.unstable_getCurrent())[0];320 update();321 });322 expect(interaction).not.toBeNull();323 expect(onRender).toHaveBeenCalledTimes(1);324 expect(onInteractionTraced).toHaveBeenCalledTimes(1);325 expect(onInteractionTraced).toHaveBeenLastNotifiedOfInteraction(326 interaction,327 );328 // Ensure the traced interaction completes without being attributed to the pre-existing idle work.329 expect(Scheduler).toFlushAndYieldThrough([330 'Updater',331 'Updater:effect',332 ]);333 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);334 expect(335 onInteractionScheduledWorkCompleted,336 ).toHaveBeenLastNotifiedOfInteraction(interaction);337 expect(onRender).toHaveBeenCalledTimes(2);338 expect(onRender).toHaveLastRenderedWithInteractions(339 new Set([interaction]),340 );341 // Complete low-priority work and ensure no lingering interaction.342 expect(Scheduler).toFlushAndYield(['Child']);343 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);344 expect(onRender).toHaveBeenCalledTimes(3);345 expect(onRender).toHaveLastRenderedWithInteractions(new Set([]));346 });347 });348 it('should properly trace interactions when there is work of interleaved priorities', () => {349 const Child = () => {350 Scheduler.unstable_yieldValue('Child');351 return <div />;352 };353 let scheduleUpdate = null;354 let scheduleUpdateWithHidden = null;355 const MaybeHiddenWork = () => {356 const [flag, setFlag] = React.useState(false);357 scheduleUpdateWithHidden = () => setFlag(true);358 Scheduler.unstable_yieldValue('MaybeHiddenWork');359 React.useEffect(() => {360 Scheduler.unstable_yieldValue('MaybeHiddenWork:effect');361 });362 return flag ? (363 <div hidden={true}>364 <Child />365 </div>366 ) : null;367 };368 const Updater = () => {369 Scheduler.unstable_yieldValue('Updater');370 React.useEffect(() => {371 Scheduler.unstable_yieldValue('Updater:effect');372 });373 const setCount = React.useState(0)[1];374 scheduleUpdate = () => setCount(current => current + 1);375 return <div />;376 };377 const App = () => {378 Scheduler.unstable_yieldValue('App');379 React.useEffect(() => {380 Scheduler.unstable_yieldValue('App:effect');381 });382 return (383 <>384 <MaybeHiddenWork />385 <Updater />386 </>387 );388 };389 const onRender = jest.fn();390 const container = document.createElement('div');391 const root = ReactDOM.createRoot(container);392 TestUtils.act(() => {393 root.render(394 <React.Profiler id="test" onRender={onRender}>395 <App />396 </React.Profiler>,397 );398 expect(Scheduler).toFlushAndYield([399 'App',400 'MaybeHiddenWork',401 'Updater',402 'MaybeHiddenWork:effect',403 'Updater:effect',404 'App:effect',405 ]);406 expect(scheduleUpdate).not.toBeNull();407 expect(scheduleUpdateWithHidden).not.toBeNull();408 expect(onRender).toHaveBeenCalledTimes(1);409 // schedule traced high-pri update and a (non-traced) low-pri update.410 let interaction = null;411 SchedulerTracing.unstable_trace('update', 0, () => {412 interaction = Array.from(SchedulerTracing.unstable_getCurrent())[0];413 Scheduler.unstable_runWithPriority(414 Scheduler.unstable_UserBlockingPriority,415 () => scheduleUpdateWithHidden(),416 );417 });418 scheduleUpdate();419 expect(interaction).not.toBeNull();420 expect(onRender).toHaveBeenCalledTimes(1);421 expect(onInteractionTraced).toHaveBeenCalledTimes(1);422 expect(onInteractionTraced).toHaveBeenLastNotifiedOfInteraction(423 interaction,424 );425 // high-pri update should leave behind idle work and should not complete the interaction426 expect(Scheduler).toFlushAndYieldThrough([427 'MaybeHiddenWork',428 'MaybeHiddenWork:effect',429 ]);430 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();431 expect(onRender).toHaveBeenCalledTimes(2);432 expect(onRender).toHaveLastRenderedWithInteractions(433 new Set([interaction]),434 );435 // low-pri update should not have the interaction436 expect(Scheduler).toFlushAndYieldThrough([437 'Updater',438 'Updater:effect',439 ]);440 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();441 expect(onRender).toHaveBeenCalledTimes(3);442 expect(onRender).toHaveLastRenderedWithInteractions(new Set([]));443 // idle work should complete the interaction444 expect(Scheduler).toFlushAndYield(['Child']);445 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);446 expect(447 onInteractionScheduledWorkCompleted,448 ).toHaveBeenLastNotifiedOfInteraction(interaction);449 expect(onRender).toHaveBeenCalledTimes(4);450 expect(onRender).toHaveLastRenderedWithInteractions(451 new Set([interaction]),452 );453 });454 });455 it('should properly trace interactions through a multi-pass SuspenseList render', () => {456 const SuspenseList = React.SuspenseList;457 const Suspense = React.Suspense;458 function Text({text}) {459 Scheduler.unstable_yieldValue(text);460 React.useEffect(() => {461 Scheduler.unstable_yieldValue('Commit ' + text);462 });463 return <span>{text}</span>;464 }465 function App() {466 return (467 <SuspenseList revealOrder="forwards">468 <Suspense fallback={<Text text="Loading A" />}>469 <Text text="A" />470 </Suspense>471 <Suspense fallback={<Text text="Loading B" />}>472 <Text text="B" />473 </Suspense>474 <Suspense fallback={<Text text="Loading C" />}>475 <Text text="C" />476 </Suspense>477 </SuspenseList>478 );479 }480 const container = document.createElement('div');481 const root = ReactDOM.createRoot(container);482 let interaction;483 TestUtils.act(() => {484 SchedulerTracing.unstable_trace('initialization', 0, () => {485 interaction = Array.from(SchedulerTracing.unstable_getCurrent())[0];486 // This render is only CPU bound. Nothing suspends.487 root.render(<App />);488 });489 expect(Scheduler).toFlushAndYieldThrough(['A']);490 Scheduler.unstable_advanceTime(200);491 jest.advanceTimersByTime(200);492 expect(Scheduler).toFlushAndYieldThrough(['B']);493 Scheduler.unstable_advanceTime(300);494 jest.advanceTimersByTime(300);495 // Time has now elapsed for so long that we're just going to give up496 // rendering the rest of the content. So that we can at least show497 // something.498 expect(Scheduler).toFlushAndYieldThrough([499 'Loading C',500 'Commit A',501 'Commit B',502 'Commit Loading C',503 ]);504 // Schedule an unrelated low priority update that shouldn't be included505 // in the previous interaction. This is meant to ensure that we don't506 // rely on the whole tree completing to cover up bugs.507 Scheduler.unstable_runWithPriority(508 Scheduler.unstable_IdlePriority,509 () => root.render(<App />),510 );511 expect(onInteractionTraced).toHaveBeenCalledTimes(1);512 expect(onInteractionTraced).toHaveBeenLastNotifiedOfInteraction(513 interaction,514 );515 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();516 // Then we do a second pass to commit the last item.517 expect(Scheduler).toFlushAndYieldThrough(['C', 'Commit C']);518 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);519 expect(520 onInteractionScheduledWorkCompleted,521 ).toHaveBeenLastNotifiedOfInteraction(interaction);522 });523 });524 });525 describe('hydration', () => {526 it('traces interaction across hydration', async done => {527 let ref = React.createRef();528 function Child() {529 return 'Hello';530 }531 function App() {532 return (533 <div>534 <span ref={ref}>535 <Child />536 </span>537 </div>538 );539 }540 // Render the final HTML.541 const finalHTML = ReactDOMServer.renderToString(<App />);542 const container = document.createElement('div');543 container.innerHTML = finalHTML;544 let interaction;545 const root = ReactDOM.createRoot(container, {hydrate: true});546 // Hydrate it.547 SchedulerTracing.unstable_trace('initialization', 0, () => {548 interaction = Array.from(SchedulerTracing.unstable_getCurrent())[0];549 root.render(<App />);550 });551 Scheduler.unstable_flushAll();552 jest.runAllTimers();553 expect(ref.current).not.toBe(null);554 expect(onInteractionTraced).toHaveBeenCalledTimes(1);555 expect(onInteractionTraced).toHaveBeenLastNotifiedOfInteraction(556 interaction,557 );558 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);559 expect(560 onInteractionScheduledWorkCompleted,561 ).toHaveBeenLastNotifiedOfInteraction(interaction);562 done();563 });564 it('traces interaction across suspended hydration', async done => {565 let suspend = false;566 let resolve;567 let promise = new Promise(resolvePromise => (resolve = resolvePromise));568 let ref = React.createRef();569 function Child() {570 if (suspend) {571 throw promise;572 } else {573 return 'Hello';574 }575 }576 function App() {577 return (578 <div>579 <React.Suspense fallback="Loading...">580 <span ref={ref}>581 <Child />582 </span>583 </React.Suspense>584 </div>585 );586 }587 // Render the final HTML.588 // Don't suspend on the server.589 const finalHTML = ReactDOMServer.renderToString(<App />);590 const container = document.createElement('div');591 container.innerHTML = finalHTML;592 let interaction;593 const root = ReactDOM.createRoot(container, {hydrate: true});594 // Start hydrating but simulate blocking for suspense data.595 suspend = true;596 SchedulerTracing.unstable_trace('initialization', 0, () => {597 interaction = Array.from(SchedulerTracing.unstable_getCurrent())[0];598 root.render(<App />);599 });600 Scheduler.unstable_flushAll();601 jest.runAllTimers();602 expect(ref.current).toBe(null);603 expect(onInteractionTraced).toHaveBeenCalledTimes(1);604 expect(onInteractionTraced).toHaveBeenLastNotifiedOfInteraction(605 interaction,606 );607 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();608 // Resolving the promise should continue hydration609 suspend = false;610 resolve();611 await promise;612 Scheduler.unstable_flushAll();613 jest.runAllTimers();614 expect(ref.current).not.toBe(null);615 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);616 expect(617 onInteractionScheduledWorkCompleted,618 ).toHaveBeenLastNotifiedOfInteraction(interaction);619 done();620 });621 it('traces interaction across client-rendered hydration', async done => {622 let suspend = false;623 let promise = new Promise(() => {});624 let ref = React.createRef();625 function Child() {626 if (suspend) {627 throw promise;628 } else {629 return 'Hello';630 }631 }632 function App() {633 return (634 <div>635 <React.Suspense fallback="Loading...">636 <span ref={ref}>637 <Child />638 </span>639 </React.Suspense>640 </div>641 );642 }643 // Render the final HTML.644 suspend = true;645 const finalHTML = ReactDOMServer.renderToString(<App />);646 const container = document.createElement('div');647 container.innerHTML = finalHTML;648 let interaction;649 const root = ReactDOM.createRoot(container, {hydrate: true});650 // Hydrate without suspending to fill in the client-rendered content.651 suspend = false;652 SchedulerTracing.unstable_trace('initialization', 0, () => {653 interaction = Array.from(SchedulerTracing.unstable_getCurrent())[0];654 root.render(<App />);655 });656 expect(onWorkStopped).toHaveBeenCalledTimes(1);657 // Advance time a bit so that we get into a new expiration bucket.658 Scheduler.unstable_advanceTime(300);659 jest.advanceTimersByTime(300);660 Scheduler.unstable_flushAll();661 jest.runAllTimers();662 expect(ref.current).not.toBe(null);663 // We should've had two commits that was traced.664 // First one that hydrates the parent, and then one that hydrates665 // the boundary at higher than Never priority.666 expect(onWorkStopped).toHaveBeenCalledTimes(3);667 expect(onInteractionTraced).toHaveBeenCalledTimes(1);668 expect(onInteractionTraced).toHaveBeenLastNotifiedOfInteraction(669 interaction,670 );671 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);672 expect(673 onInteractionScheduledWorkCompleted,674 ).toHaveBeenLastNotifiedOfInteraction(interaction);675 done();676 });677 });678 });...
TrackingSubscriptions-test.internal.js
Source:TrackingSubscriptions-test.internal.js
1/**2 * Copyright (c) 2013-present, Facebook, Inc.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('TrackingSubscriptions', () => {11 let SchedulerTracking;12 let ReactFeatureFlags;13 let currentTime;14 let onInteractionScheduledWorkCompleted;15 let onInteractionTracked;16 let onWorkCanceled;17 let onWorkScheduled;18 let onWorkStarted;19 let onWorkStopped;20 let throwInOnInteractionScheduledWorkCompleted;21 let throwInOnInteractionTracked;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({enableSchedulerTracking, autoSubscribe = true}) {32 jest.resetModules();33 jest.useFakeTimers();34 currentTime = 0;35 ReactFeatureFlags = require('shared/ReactFeatureFlags');36 ReactFeatureFlags.enableSchedulerTracking = enableSchedulerTracking;37 SchedulerTracking = require('schedule/tracking');38 throwInOnInteractionScheduledWorkCompleted = false;39 throwInOnInteractionTracked = 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 onInteractionTracked = jest.fn(() => {50 if (throwInOnInteractionTracked) {51 throw Error('Expected error onInteractionTracked');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 onInteractionTracked,77 onWorkCanceled,78 onWorkScheduled,79 onWorkStarted,80 onWorkStopped,81 };82 secondSubscriber = {83 onInteractionScheduledWorkCompleted: jest.fn(),84 onInteractionTracked: jest.fn(),85 onWorkCanceled: jest.fn(),86 onWorkScheduled: jest.fn(),87 onWorkStarted: jest.fn(),88 onWorkStopped: jest.fn(),89 };90 if (autoSubscribe) {91 SchedulerTracking.unstable_subscribe(firstSubscriber);92 SchedulerTracking.unstable_subscribe(secondSubscriber);93 }94 }95 describe('enabled', () => {96 beforeEach(() => loadModules({enableSchedulerTracking: true}));97 it('should lazily subscribe to tracking and unsubscribe again if there are no external subscribers', () => {98 loadModules({enableSchedulerTracking: true, autoSubscribe: false});99 expect(SchedulerTracking.__subscriberRef.current).toBe(null);100 SchedulerTracking.unstable_subscribe(firstSubscriber);101 expect(SchedulerTracking.__subscriberRef.current).toBeDefined();102 SchedulerTracking.unstable_subscribe(secondSubscriber);103 expect(SchedulerTracking.__subscriberRef.current).toBeDefined();104 SchedulerTracking.unstable_unsubscribe(secondSubscriber);105 expect(SchedulerTracking.__subscriberRef.current).toBeDefined();106 SchedulerTracking.unstable_unsubscribe(firstSubscriber);107 expect(SchedulerTracking.__subscriberRef.current).toBe(null);108 });109 describe('error handling', () => {110 it('should cover onInteractionTracked/onWorkStarted within', done => {111 SchedulerTracking.unstable_track(firstEvent.name, currentTime, () => {112 const mock = jest.fn();113 // It should call the callback before re-throwing114 throwInOnInteractionTracked = true;115 expect(() =>116 SchedulerTracking.unstable_track(117 secondEvent.name,118 currentTime,119 mock,120 threadID,121 ),122 ).toThrow('Expected error onInteractionTracked');123 throwInOnInteractionTracked = false;124 expect(mock).toHaveBeenCalledTimes(1);125 throwInOnWorkStarted = true;126 expect(() =>127 SchedulerTracking.unstable_track(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(SchedulerTracking.unstable_getCurrent()).toMatchInteractions([137 firstEvent,138 ]);139 // It should call other subscribers despite the earlier error140 expect(secondSubscriber.onInteractionTracked).toHaveBeenCalledTimes(141 3,142 );143 expect(secondSubscriber.onWorkStarted).toHaveBeenCalledTimes(3);144 done();145 });146 });147 it('should cover onWorkStopped within track', done => {148 SchedulerTracking.unstable_track(firstEvent.name, currentTime, () => {149 let innerInteraction;150 const mock = jest.fn(() => {151 innerInteraction = Array.from(152 SchedulerTracking.unstable_getCurrent(),153 )[1];154 });155 throwInOnWorkStopped = true;156 expect(() =>157 SchedulerTracking.unstable_track(158 secondEvent.name,159 currentTime,160 mock,161 ),162 ).toThrow('Expected error onWorkStopped');163 throwInOnWorkStopped = false;164 // It should restore the previous/outer interactions165 expect(SchedulerTracking.unstable_getCurrent()).toMatchInteractions([166 firstEvent,167 ]);168 // It should update the interaction count so as not to interfere with subsequent calls169 expect(innerInteraction.__count).toBe(0);170 // It should call other subscribers despite the earlier error171 expect(secondSubscriber.onWorkStopped).toHaveBeenCalledTimes(1);172 done();173 });174 });175 it('should cover onInteractionScheduledWorkCompleted within track', done => {176 SchedulerTracking.unstable_track(firstEvent.name, currentTime, () => {177 const mock = jest.fn();178 throwInOnInteractionScheduledWorkCompleted = true;179 expect(() =>180 SchedulerTracking.unstable_track(181 secondEvent.name,182 currentTime,183 mock,184 ),185 ).toThrow('Expected error onInteractionScheduledWorkCompleted');186 throwInOnInteractionScheduledWorkCompleted = false;187 // It should restore the previous/outer interactions188 expect(SchedulerTracking.unstable_getCurrent()).toMatchInteractions([189 firstEvent,190 ]);191 // It should call other subscribers despite the earlier error192 expect(193 secondSubscriber.onInteractionScheduledWorkCompleted,194 ).toHaveBeenCalledTimes(1);195 done();196 });197 });198 it('should cover the callback within track', done => {199 expect(onWorkStarted).not.toHaveBeenCalled();200 expect(onWorkStopped).not.toHaveBeenCalled();201 expect(() => {202 SchedulerTracking.unstable_track(firstEvent.name, currentTime, () => {203 throw Error('Expected error callback');204 });205 }).toThrow('Expected error callback');206 expect(onWorkStarted).toHaveBeenCalledTimes(1);207 expect(onWorkStopped).toHaveBeenCalledTimes(1);208 done();209 });210 it('should cover onWorkScheduled within wrap', done => {211 SchedulerTracking.unstable_track(firstEvent.name, currentTime, () => {212 const interaction = Array.from(213 SchedulerTracking.unstable_getCurrent(),214 )[0];215 const beforeCount = interaction.__count;216 throwInOnWorkScheduled = true;217 expect(() => SchedulerTracking.unstable_wrap(() => {})).toThrow(218 'Expected error onWorkScheduled',219 );220 // It should not update the interaction count so as not to interfere with subsequent calls221 expect(interaction.__count).toBe(beforeCount);222 // It should call other subscribers despite the earlier error223 expect(secondSubscriber.onWorkScheduled).toHaveBeenCalledTimes(1);224 done();225 });226 });227 it('should cover onWorkStarted within wrap', () => {228 const mock = jest.fn();229 let interaction, wrapped;230 SchedulerTracking.unstable_track(firstEvent.name, currentTime, () => {231 interaction = Array.from(SchedulerTracking.unstable_getCurrent())[0];232 wrapped = SchedulerTracking.unstable_wrap(mock);233 });234 expect(interaction.__count).toBe(1);235 throwInOnWorkStarted = true;236 expect(wrapped).toThrow('Expected error onWorkStarted');237 // It should call the callback before re-throwing238 expect(mock).toHaveBeenCalledTimes(1);239 // It should update the interaction count so as not to interfere with subsequent calls240 expect(interaction.__count).toBe(0);241 // It should call other subscribers despite the earlier error242 expect(secondSubscriber.onWorkStarted).toHaveBeenCalledTimes(2);243 });244 it('should cover onWorkStopped within wrap', done => {245 SchedulerTracking.unstable_track(firstEvent.name, currentTime, () => {246 const outerInteraction = Array.from(247 SchedulerTracking.unstable_getCurrent(),248 )[0];249 expect(outerInteraction.__count).toBe(1);250 let wrapped;251 let innerInteraction;252 SchedulerTracking.unstable_track(253 secondEvent.name,254 currentTime,255 () => {256 innerInteraction = Array.from(257 SchedulerTracking.unstable_getCurrent(),258 )[1];259 expect(outerInteraction.__count).toBe(1);260 expect(innerInteraction.__count).toBe(1);261 wrapped = SchedulerTracking.unstable_wrap(jest.fn());262 expect(outerInteraction.__count).toBe(2);263 expect(innerInteraction.__count).toBe(2);264 },265 );266 expect(outerInteraction.__count).toBe(2);267 expect(innerInteraction.__count).toBe(1);268 throwInOnWorkStopped = true;269 expect(wrapped).toThrow('Expected error onWorkStopped');270 throwInOnWorkStopped = false;271 // It should restore the previous interactions272 expect(SchedulerTracking.unstable_getCurrent()).toMatchInteractions([273 outerInteraction,274 ]);275 // It should update the interaction count so as not to interfere with subsequent calls276 expect(outerInteraction.__count).toBe(1);277 expect(innerInteraction.__count).toBe(0);278 expect(secondSubscriber.onWorkStopped).toHaveBeenCalledTimes(2);279 done();280 });281 });282 it('should cover the callback within wrap', done => {283 expect(onWorkStarted).not.toHaveBeenCalled();284 expect(onWorkStopped).not.toHaveBeenCalled();285 let wrapped;286 let interaction;287 SchedulerTracking.unstable_track(firstEvent.name, currentTime, () => {288 interaction = Array.from(SchedulerTracking.unstable_getCurrent())[0];289 wrapped = SchedulerTracking.unstable_wrap(() => {290 throw Error('Expected error wrap');291 });292 });293 expect(onWorkStarted).toHaveBeenCalledTimes(1);294 expect(onWorkStopped).toHaveBeenCalledTimes(1);295 expect(wrapped).toThrow('Expected error wrap');296 expect(onWorkStarted).toHaveBeenCalledTimes(2);297 expect(onWorkStopped).toHaveBeenCalledTimes(2);298 expect(onWorkStopped).toHaveBeenLastNotifiedOfWork([interaction]);299 done();300 });301 it('should cover onWorkCanceled within wrap', () => {302 let interaction, wrapped;303 SchedulerTracking.unstable_track(firstEvent.name, currentTime, () => {304 interaction = Array.from(SchedulerTracking.unstable_getCurrent())[0];305 wrapped = SchedulerTracking.unstable_wrap(jest.fn());306 });307 expect(interaction.__count).toBe(1);308 throwInOnWorkCanceled = true;309 expect(wrapped.cancel).toThrow('Expected error onWorkCanceled');310 expect(onWorkCanceled).toHaveBeenCalledTimes(1);311 // It should update the interaction count so as not to interfere with subsequent calls312 expect(interaction.__count).toBe(0);313 expect(314 onInteractionScheduledWorkCompleted,315 ).toHaveBeenLastNotifiedOfInteraction(firstEvent);316 // It should call other subscribers despite the earlier error317 expect(secondSubscriber.onWorkCanceled).toHaveBeenCalledTimes(1);318 });319 });320 it('calls lifecycle methods for track', () => {321 expect(onInteractionTracked).not.toHaveBeenCalled();322 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();323 SchedulerTracking.unstable_track(324 firstEvent.name,325 currentTime,326 () => {327 expect(onInteractionTracked).toHaveBeenCalledTimes(1);328 expect(onInteractionTracked).toHaveBeenLastNotifiedOfInteraction(329 firstEvent,330 );331 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();332 expect(onWorkStarted).toHaveBeenCalledTimes(1);333 expect(onWorkStarted).toHaveBeenLastNotifiedOfWork(334 new Set([firstEvent]),335 threadID,336 );337 expect(onWorkStopped).not.toHaveBeenCalled();338 SchedulerTracking.unstable_track(339 secondEvent.name,340 currentTime,341 () => {342 expect(onInteractionTracked).toHaveBeenCalledTimes(2);343 expect(onInteractionTracked).toHaveBeenLastNotifiedOfInteraction(344 secondEvent,345 );346 expect(347 onInteractionScheduledWorkCompleted,348 ).not.toHaveBeenCalled();349 expect(onWorkStarted).toHaveBeenCalledTimes(2);350 expect(onWorkStarted).toHaveBeenLastNotifiedOfWork(351 new Set([firstEvent, secondEvent]),352 threadID,353 );354 expect(onWorkStopped).not.toHaveBeenCalled();355 },356 threadID,357 );358 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);359 expect(360 onInteractionScheduledWorkCompleted,361 ).toHaveBeenLastNotifiedOfInteraction(secondEvent);362 expect(onWorkStopped).toHaveBeenCalledTimes(1);363 expect(onWorkStopped).toHaveBeenLastNotifiedOfWork(364 new Set([firstEvent, secondEvent]),365 threadID,366 );367 },368 threadID,369 );370 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(2);371 expect(372 onInteractionScheduledWorkCompleted,373 ).toHaveBeenLastNotifiedOfInteraction(firstEvent);374 expect(onWorkScheduled).not.toHaveBeenCalled();375 expect(onWorkCanceled).not.toHaveBeenCalled();376 expect(onWorkStarted).toHaveBeenCalledTimes(2);377 expect(onWorkStopped).toHaveBeenCalledTimes(2);378 expect(onWorkStopped).toHaveBeenLastNotifiedOfWork(379 new Set([firstEvent]),380 threadID,381 );382 });383 it('calls lifecycle methods for wrap', () => {384 const unwrapped = jest.fn();385 let wrapped;386 SchedulerTracking.unstable_track(firstEvent.name, currentTime, () => {387 expect(onInteractionTracked).toHaveBeenCalledTimes(1);388 expect(onInteractionTracked).toHaveBeenLastNotifiedOfInteraction(389 firstEvent,390 );391 SchedulerTracking.unstable_track(secondEvent.name, currentTime, () => {392 expect(onInteractionTracked).toHaveBeenCalledTimes(2);393 expect(onInteractionTracked).toHaveBeenLastNotifiedOfInteraction(394 secondEvent,395 );396 wrapped = SchedulerTracking.unstable_wrap(unwrapped, threadID);397 expect(onWorkScheduled).toHaveBeenCalledTimes(1);398 expect(onWorkScheduled).toHaveBeenLastNotifiedOfWork(399 new Set([firstEvent, secondEvent]),400 threadID,401 );402 });403 });404 expect(onInteractionTracked).toHaveBeenCalledTimes(2);405 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();406 wrapped();407 expect(unwrapped).toHaveBeenCalled();408 expect(onWorkScheduled).toHaveBeenCalledTimes(1);409 expect(onWorkCanceled).not.toHaveBeenCalled();410 expect(onWorkStarted).toHaveBeenCalledTimes(3);411 expect(onWorkStarted).toHaveBeenLastNotifiedOfWork(412 new Set([firstEvent, secondEvent]),413 threadID,414 );415 expect(onWorkStopped).toHaveBeenCalledTimes(3);416 expect(onWorkStopped).toHaveBeenLastNotifiedOfWork(417 new Set([firstEvent, secondEvent]),418 threadID,419 );420 expect(421 onInteractionScheduledWorkCompleted.mock.calls[0][0],422 ).toMatchInteraction(firstEvent);423 expect(424 onInteractionScheduledWorkCompleted.mock.calls[1][0],425 ).toMatchInteraction(secondEvent);426 });427 it('should call the correct interaction subscriber methods when a wrapped callback is canceled', () => {428 const fnOne = jest.fn();429 const fnTwo = jest.fn();430 let wrappedOne, wrappedTwo;431 SchedulerTracking.unstable_track(firstEvent.name, currentTime, () => {432 wrappedOne = SchedulerTracking.unstable_wrap(fnOne, threadID);433 SchedulerTracking.unstable_track(secondEvent.name, currentTime, () => {434 wrappedTwo = SchedulerTracking.unstable_wrap(fnTwo, threadID);435 });436 });437 expect(onInteractionTracked).toHaveBeenCalledTimes(2);438 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();439 expect(onWorkCanceled).not.toHaveBeenCalled();440 expect(onWorkStarted).toHaveBeenCalledTimes(2);441 expect(onWorkStopped).toHaveBeenCalledTimes(2);442 wrappedTwo.cancel();443 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);444 expect(445 onInteractionScheduledWorkCompleted,446 ).toHaveBeenLastNotifiedOfInteraction(secondEvent);447 expect(onWorkCanceled).toHaveBeenCalledTimes(1);448 expect(onWorkCanceled).toHaveBeenLastNotifiedOfWork(449 new Set([firstEvent, secondEvent]),450 threadID,451 );452 wrappedOne.cancel();453 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(2);454 expect(455 onInteractionScheduledWorkCompleted,456 ).toHaveBeenLastNotifiedOfInteraction(firstEvent);457 expect(onWorkCanceled).toHaveBeenCalledTimes(2);458 expect(onWorkCanceled).toHaveBeenLastNotifiedOfWork(459 new Set([firstEvent]),460 threadID,461 );462 expect(fnOne).not.toHaveBeenCalled();463 expect(fnTwo).not.toHaveBeenCalled();464 });465 it('should not end an interaction twice if wrap is used to schedule follow up work within another wrap', () => {466 const fnOne = jest.fn(() => {467 wrappedTwo = SchedulerTracking.unstable_wrap(fnTwo, threadID);468 });469 const fnTwo = jest.fn();470 let wrappedOne, wrappedTwo;471 SchedulerTracking.unstable_track(firstEvent.name, currentTime, () => {472 wrappedOne = SchedulerTracking.unstable_wrap(fnOne, threadID);473 });474 expect(onInteractionTracked).toHaveBeenCalledTimes(1);475 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();476 wrappedOne();477 expect(onInteractionTracked).toHaveBeenCalledTimes(1);478 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();479 wrappedTwo();480 expect(onInteractionTracked).toHaveBeenCalledTimes(1);481 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);482 expect(483 onInteractionScheduledWorkCompleted,484 ).toHaveBeenLastNotifiedOfInteraction(firstEvent);485 });486 it('should not decrement the interaction count twice if a wrapped function is run twice', () => {487 const unwrappedOne = jest.fn();488 const unwrappedTwo = jest.fn();489 let wrappedOne, wrappedTwo;490 SchedulerTracking.unstable_track(firstEvent.name, currentTime, () => {491 wrappedOne = SchedulerTracking.unstable_wrap(unwrappedOne, threadID);492 wrappedTwo = SchedulerTracking.unstable_wrap(unwrappedTwo, threadID);493 });494 expect(onInteractionTracked).toHaveBeenCalledTimes(1);495 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();496 wrappedOne();497 expect(unwrappedOne).toHaveBeenCalledTimes(1);498 expect(onInteractionTracked).toHaveBeenCalledTimes(1);499 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();500 wrappedOne();501 expect(unwrappedOne).toHaveBeenCalledTimes(2);502 expect(onInteractionTracked).toHaveBeenCalledTimes(1);503 expect(onInteractionScheduledWorkCompleted).not.toHaveBeenCalled();504 wrappedTwo();505 expect(onInteractionTracked).toHaveBeenCalledTimes(1);506 expect(onInteractionScheduledWorkCompleted).toHaveBeenCalledTimes(1);507 expect(508 onInteractionScheduledWorkCompleted,509 ).toHaveBeenLastNotifiedOfInteraction(firstEvent);510 });511 it('should unsubscribe', () => {512 SchedulerTracking.unstable_unsubscribe(firstSubscriber);513 SchedulerTracking.unstable_track(firstEvent.name, currentTime, () => {});514 expect(onInteractionTracked).not.toHaveBeenCalled();515 });516 });517 describe('disabled', () => {518 beforeEach(() => loadModules({enableSchedulerTracking: false}));519 // TODO520 });...
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 });...
Using AI Code Generation
1const playwright = require('playwright');2(async () => {3 const browser = await playwright['chromium'].launch({ headless: false });4 const page = await browser.newPage();5 await page.click('text=Docs');6 await page.waitForSelector('text=API');7 await page.click('text=API');8 await page.waitForSelector('text=BrowserContext');9 await page.click('text=BrowserContext');10 await page.waitForSelector('text=BrowserContext');11 await page.click('text=BrowserContext');12 await page.waitForSelector('text=BrowserContext');13 await page.click('text=BrowserContext');14 await page.waitForSelector('text=BrowserContext');15 await page.click('text=BrowserContext');16 await page.waitForSelector('text=BrowserContext');17 await page.click('text=BrowserContext');18 await page.waitForSelector('text=BrowserContext');19 await page.click('text=BrowserContext');20 await page.waitForSelector('text=BrowserContext');21 await page.click('text=BrowserContext');22 await page.waitForSelector('text=BrowserContext');23 await page.click('text=BrowserContext');24 await page.waitForSelector('text=BrowserContext');25 await page.click('text=BrowserContext');26 await page.waitForSelector('text=BrowserContext');27 await page.click('text=BrowserContext');28 await page.waitForSelector('text=BrowserContext');29 await page.click('text=BrowserContext');30 await page.waitForSelector('text=BrowserContext');31 await page.click('text=BrowserContext');32 await page.waitForSelector('text=BrowserContext');33 await page.click('text=BrowserContext');34 await page.waitForSelector('text=BrowserContext');35 await page.click('text=BrowserContext');36 await page.waitForSelector('text=BrowserContext');37 await page.click('text=BrowserContext');38 await page.waitForSelector('text=BrowserContext');39 await page.click('text=BrowserContext');40 await page.waitForSelector('text=BrowserContext');41 await page.click('text=BrowserContext');42 await page.waitForSelector('text=BrowserContext');43 await page.click('text=BrowserContext');44 await page.waitForSelector('text=BrowserContext');45 await page.click('text=BrowserContext');46 await page.waitForSelector('text=BrowserContext');47 await page.click('text=BrowserContext');
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 client = await page.context().newCDPSession(page);7await client.send('Performance.enable');8await client.send('Performance.setCPUThrottlingRate', { rate: 4 });9await client.send('Performance.start');10await page.click('button');11await client.send('Performance.stop');12const metrics = await client.send('Performance.getMetrics');13const { duration } = metrics.metrics.find(m => m.name === 'Timestamp::DocumentInteractive');14console.log('DocumentInteractive: ' + duration);15await browser.close();
Using AI Code Generation
1const { Playwright } = require('playwright');2const playwright = new Playwright();3const browser = await playwright.webkit.launch();4const context = await browser.newContext();5const page = await context.newPage();6await page.screenshot({ path: 'example.png' });7await browser.close();8const { Playwright } = require('playwright');9const playwright = new Playwright();10const browser = await playwright.webkit.launch();11const context = await browser.newContext();12const page = await context.newPage();13await page.waitForSelector('text=Get started');14await page.click('text=Get started');15await browser.close();16const { Playwright } = require('playwright');17const playwright = new Playwright();18const browser = await playwright.webkit.launch();19const context = await browser.newContext();20const page = await context.newPage();21await page.waitForSelector('text=Get started');22await page.click('text=Get started');23await page.waitForSelector('text=Install Playwright');24await browser.close();25const { Playwright } = require('playwright');26const playwright = new Playwright();27const browser = await playwright.webkit.launch();28const context = await browser.newContext();29const page = await context.newPage();30await page.waitForSelector('
Using AI Code Generation
1const playwright = require('playwright');2const { Playwright } = require('playwright/lib/server/playwright');3const { PlaywrightServer } = require('playwright/lib/server/playwrightServer');4const { PlaywrightDispatcher } = require('playwright/lib/server/playwrightDispatcher');5const { DispatcherConnection } = require('playwright/lib/server/dispatchers/dispatcher');6const { PlaywrightChannel } = require('playwright/lib/server/playwright');7const { PlaywrightClient } = require('playwright/lib/client/playwright');8const { BrowserServer } = require('playwright/lib/server/browserServer');9const { BrowserServerChannel } = require('playwright/lib/server/browserServer');10const { BrowserServerDispatcher } = require('playwright/lib/server/browserServerDispatcher');11const { BrowserContextChannel } = require('playwright/lib/server/browserContext');12const { BrowserContextDispatcher } = require('playwright/lib/server/browserContextDispatcher');13const { BrowserContext } = require('playwright/lib/server/browserContext');14const { BrowserChannel } = require('playwright/lib/server/browser');15const { BrowserDispatcher } = require('playwright/lib/server/browserDispatcher');16const { Browser } = require('playwright/lib/server/browser');17const { PageChannel } = require('playwright/lib/server/page');18const { PageDispatcher } = require('playwright/lib/server/pageDispatcher');19const { Page } = require('playwright/lib/server/page');20const { FrameChannel } = require('playwright/lib/server/frame');21const { FrameDispatcher } = require('playwright/lib/server/frameDispatcher');22const { Frame } = require('playwright/lib/server/frame');23const { WorkerChannel } = require('playwright/lib/server/worker');24const { WorkerDispatcher } = require('playwright/lib/server/workerDispatcher');25const { Worker } = require('playwright/lib/server/worker');26const { WebsocketServer } = require('playwright/lib/server/websocketServer');27const { WebsocketTransport } = require('playwright/lib/server/websocketTransport');28const { WebsocketServerTransport } = require('playwright/lib/server/websocketServerTransport');29const { WebSocketTransport } = require('playwright/lib/server/webSocketTransport');30const { WebSocketServerTransport } = require('playwright/lib/server/webSocketServerTransport');31const { WebSocketServer } = require('playwright/lib/server/webSocketServer');32const { WebSocketChannel } = require('playwright/lib/server/webSocketChannel');33const { WebSocketDispatcher
Using AI Code Generation
1const { Playwright } = require('playwright-core');2const playwright = new Playwright();3const browser = await playwright.chromium.launch();4const context = await browser.newContext();5const page = await context.newPage();6const worker = await page.evaluateHandle(() => new Worker(URL.createObjectURL(new Blob(['console.log("hey!")'], {type: 'application/javascript'}))));7await worker.evaluate(() => new Promise(f => setTimeout(f, 1000)));8await playwright._onWorkerCreated(worker);9await playwright._onWorkerDestroyed(worker);10await browser.close();
Using AI Code Generation
1const playwright = require('playwright');2const { Playwright } = require('playwright-core/lib/server/playwright.js');3async function main() {4 const browser = await playwright.chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await page.click('text=Get started');8 await page.waitForTimeout(5000);9 await browser.close();10}11main();12const { Playwright } = require('playwright-core/lib/server/playwright.js');13async function main() {14 const browser = await playwright.chromium.launch();15 const context = await browser.newContext();16 const page = await context.newPage();17 await page.click('text=Get started');18 await page.waitForTimeout(5000);19 await browser.close();20}21main();22const { Playwright } = require('playwright-core/lib/server/playwright.js');23async function main() {24 const browser = await playwright.chromium.launch();25 const context = await browser.newContext();26 const page = await context.newPage();27 await page.click('text=Get started');28 await page.waitForTimeout(5000);29 await browser.close();30}31main();32const { Playwright } = require('playwright-core/lib/server/playwright.js');33async function main() {34 const browser = await playwright.chromium.launch();35 const context = await browser.newContext();36 const page = await context.newPage();37 await page.click('text=Get started');38 await page.waitForTimeout(5000);39 await browser.close();40}41main();42const { Playwright } = require('playwright-core/lib/server/playwright.js');43async function main() {44 const browser = await playwright.chromium.launch();45 const context = await browser.newContext();46 const page = await context.newPage();47 await page.click('text=Get started
Using AI Code Generation
1const playwright = require('playwright');2const { InternalApi } = require('playwright/lib/server/frames');3const { Frame } = require('playwright/lib/server/frames');4const { Page } = require('playwright/lib/server/page');5const { chromium, webkit, firefox } = require('playwright');6(async () => {7 const browser = await chromium.launch({ headless: false });8 const context = await browser.newContext();9 const page = await context.newPage();10 await page.screenshot({ path: `example.png` });11 await browser.close();12})();13const playwright = require('playwright');14const { InternalApi } = require('playwright/lib/server/frames');15const { Frame } = require('playwright/lib/server/frames');16const { Page } = require('playwright/lib/server/page');17const { chromium, webkit, firefox } = require('playwright');18(async () => {19 const browser = await chromium.launch({ headless: false });20 const context = await browser.newContext();21 const page = await context.newPage();22 await page.screenshot({ path: `example.png` });23 await browser.close();24})();25const playwright = require('playwright');26const { InternalApi } = require('playwright/lib/server/frames');27const { Frame } = require('playwright/lib/server/frames');28const { Page } = require('playwright/lib/server/page');29const { chromium, webkit, firefox } = require('playwright');30(async () => {31 const browser = await chromium.launch({ headless: false });32 const context = await browser.newContext();33 const page = await context.newPage();34 await page.screenshot({ path: `example.png` });35 await browser.close();36})();37const playwright = require('playwright');38const { InternalApi } = require('playwright/lib/server/frames');39const { Frame } = require('playwright/lib/server/frames');40const { Page } = require('playwright/lib/server/page');41const { chromium, webkit, firefox } = require('
Using AI Code Generation
1const { Playwright } = require('@playwright/test');2const playwrightInternal = new Playwright();3const playwright = new Playwright();4const browser = await playwright.chromium.launch({ headless: false });5const context = await browser.newContext();6const page = await context.newPage();7await page.click('text=Get started');8await playwrightInternal._inflightRecorder.onInteractionScheduledWorkCompleted(page);9- The generated code uses ES6 modules. So, you can import the files as shown below:10 import Login from './generated/Login.js';11 const login = new Login(page);12 await login.enterUsername('username');13 await login.enterPassword('password');14 await login.clickLogin();15 import { test, expect } from '@playwright/test';16 import Login from './generated/Login.js';17 test('Login test', async ({ page }) => {18 const login = new Login(page);19 await login.enterUsername('username');20 await login.enterPassword('password');21 await login.clickLogin();22 expect(await page.innerText('.login-success')).toBe('Login successful');23 });24- If you want to use the generated code with Playwright Test, you can use the `playwright-test-codegen` package to generate the test files for you. The generated test files will use the generated code. The generated test files will also have the `test` and `expect` imports. You can install the `playwright-test-codegen` package as shown below:
Using AI Code Generation
1const playwright = require('playwright');2(async () => {3 for (const browserType of BROWSER) {4 const browser = await playwright[browserType].launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 await page.screenshot({ path: `example-${browserType}.png` });8 await browser.close();9 }10})();11const playwright = require('playwright');12(async () => {13 for (const browserType of BROWSER) {14 const browser = await playwright[browserType].launch();15 const context = await browser.newContext();16 const page = await context.newPage();17 await page.screenshot({ path: `example-${browserType}.png` });18 await browser.close();19 }20})();21const playwright = require('playwright');22(async () => {23 for (const browserType of BROWSER) {24 const browser = await playwright[browserType].launch();25 const context = await browser.newContext();26 const page = await context.newPage();27 await page.screenshot({ path: `example-${browserType}.png` });28 await browser.close();29 }30})();31const playwright = require('playwright');32(async () => {33 for (const browserType of BROWSER) {34 const browser = await playwright[browserType].launch();35 const context = await browser.newContext();36 const page = await context.newPage();
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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