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TimelineProfiler-test.js
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TimelineProfiler-test.js
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/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow
*/
'use strict';
describe('Timeline profiler', () => {
let React;
let ReactDOMClient;
let Scheduler;
let renderHelper;
let renderRootHelper;
let store;
let unmountFns;
let utils;
beforeEach(() => {
utils = require('./utils');
utils.beforeEachProfiling();
unmountFns = [];
renderHelper = element => {
const unmountFn = utils.legacyRender(element);
unmountFns.push(unmountFn);
return unmountFn;
};
renderRootHelper = element => {
const container = document.createElement('div');
const root = ReactDOMClient.createRoot(container);
root.render(element);
const unmountFn = () => root.unmount();
unmountFns.push(unmountFn);
return unmountFn;
};
React = require('react');
ReactDOMClient = require('react-dom/client');
Scheduler = require('scheduler');
store = global.store;
});
describe('User Timing API', () => {
let clearedMarks;
let featureDetectionMarkName = null;
let marks;
let setPerformanceMock;
function createUserTimingPolyfill() {
featureDetectionMarkName = null;
clearedMarks = [];
marks = [];
// Remove file-system specific bits or version-specific bits of information from the module range marks.
function filterMarkData(markName) {
if (markName.startsWith('--react-internal-module-start')) {
return '--react-internal-module-start- at filtered (<anonymous>:0:0)';
} else if (markName.startsWith('--react-internal-module-stop')) {
return '--react-internal-module-stop- at filtered (<anonymous>:1:1)';
} else if (markName.startsWith('--react-version')) {
return '--react-version-<filtered-version>';
} else {
return markName;
}
}
// This is not a true polyfill, but it gives us enough to capture marks.
// Reference: https://developer.mozilla.org/en-US/docs/Web/API/User_Timing_API
return {
clearMarks(markName) {
markName = filterMarkData(markName);
clearedMarks.push(markName);
marks = marks.filter(mark => mark !== markName);
},
mark(markName, markOptions) {
markName = filterMarkData(markName);
if (featureDetectionMarkName === null) {
featureDetectionMarkName = markName;
}
marks.push(markName);
if (markOptions != null) {
// This is triggers the feature detection.
markOptions.startTime++;
}
},
};
}
function clearPendingMarks() {
clearedMarks.splice(0);
}
function dispatchAndSetCurrentEvent(element, event) {
try {
window.event = event;
element.dispatchEvent(event);
} finally {
window.event = undefined;
}
}
beforeEach(() => {
setPerformanceMock = require('react-devtools-shared/src/backend/profilingHooks')
.setPerformanceMock_ONLY_FOR_TESTING;
setPerformanceMock(createUserTimingPolyfill());
});
afterEach(() => {
// Verify all logged marks also get cleared.
expect(marks).toHaveLength(0);
unmountFns.forEach(unmountFn => unmountFn());
setPerformanceMock(null);
});
it('should mark sync render without suspends or state updates', () => {
renderHelper(<div />);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-1",
"--render-start-1",
"--render-stop",
"--commit-start-1",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--layout-effects-start-1",
"--layout-effects-stop",
"--commit-stop",
]
`);
});
it('should mark concurrent render without suspends or state updates', () => {
renderRootHelper(<div />);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-16",
]
`);
clearPendingMarks();
expect(Scheduler).toFlushUntilNextPaint([]);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--render-start-16",
"--render-stop",
"--commit-start-16",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--layout-effects-start-16",
"--layout-effects-stop",
"--commit-stop",
]
`);
});
it('should mark render yields', async () => {
function Bar() {
Scheduler.unstable_yieldValue('Bar');
return null;
}
function Foo() {
Scheduler.unstable_yieldValue('Foo');
return <Bar />;
}
React.startTransition(() => {
renderRootHelper(<Foo />);
});
// Do one step of work.
expect(Scheduler).toFlushAndYieldThrough(['Foo']);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-64",
"--render-start-64",
"--component-render-start-Foo",
"--component-render-stop",
"--render-yield",
]
`);
});
it('should mark sync render with suspense that resolves', async () => {
const fakeSuspensePromise = Promise.resolve(true);
function Example() {
throw fakeSuspensePromise;
}
renderHelper(
<React.Suspense fallback={null}>
<Example />
</React.Suspense>,
);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-1",
"--render-start-1",
"--component-render-start-Example",
"--component-render-stop",
"--suspense-suspend-0-Example-mount-1-",
"--render-stop",
"--commit-start-1",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--layout-effects-start-1",
"--layout-effects-stop",
"--commit-stop",
]
`);
clearPendingMarks();
await fakeSuspensePromise;
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--suspense-resolved-0-Example",
]
`);
});
it('should mark sync render with suspense that rejects', async () => {
const fakeSuspensePromise = Promise.reject(new Error('error'));
function Example() {
throw fakeSuspensePromise;
}
renderHelper(
<React.Suspense fallback={null}>
<Example />
</React.Suspense>,
);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-1",
"--render-start-1",
"--component-render-start-Example",
"--component-render-stop",
"--suspense-suspend-0-Example-mount-1-",
"--render-stop",
"--commit-start-1",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--layout-effects-start-1",
"--layout-effects-stop",
"--commit-stop",
]
`);
clearPendingMarks();
await expect(fakeSuspensePromise).rejects.toThrow();
expect(clearedMarks).toContain(`--suspense-rejected-0-Example`);
});
it('should mark concurrent render with suspense that resolves', async () => {
const fakeSuspensePromise = Promise.resolve(true);
function Example() {
throw fakeSuspensePromise;
}
renderRootHelper(
<React.Suspense fallback={null}>
<Example />
</React.Suspense>,
);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-16",
]
`);
clearPendingMarks();
expect(Scheduler).toFlushUntilNextPaint([]);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--render-start-16",
"--component-render-start-Example",
"--component-render-stop",
"--suspense-suspend-0-Example-mount-16-",
"--render-stop",
"--commit-start-16",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--layout-effects-start-16",
"--layout-effects-stop",
"--commit-stop",
]
`);
clearPendingMarks();
await fakeSuspensePromise;
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--suspense-resolved-0-Example",
]
`);
});
it('should mark concurrent render with suspense that rejects', async () => {
const fakeSuspensePromise = Promise.reject(new Error('error'));
function Example() {
throw fakeSuspensePromise;
}
renderRootHelper(
<React.Suspense fallback={null}>
<Example />
</React.Suspense>,
);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-16",
]
`);
clearPendingMarks();
expect(Scheduler).toFlushUntilNextPaint([]);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--render-start-16",
"--component-render-start-Example",
"--component-render-stop",
"--suspense-suspend-0-Example-mount-16-",
"--render-stop",
"--commit-start-16",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--layout-effects-start-16",
"--layout-effects-stop",
"--commit-stop",
]
`);
clearPendingMarks();
await expect(fakeSuspensePromise).rejects.toThrow();
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--suspense-rejected-0-Example",
]
`);
});
it('should mark cascading class component state updates', () => {
class Example extends React.Component {
state = {didMount: false};
componentDidMount() {
this.setState({didMount: true});
}
render() {
return null;
}
}
renderRootHelper(<Example />);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-16",
]
`);
clearPendingMarks();
expect(Scheduler).toFlushUntilNextPaint([]);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--render-start-16",
"--component-render-start-Example",
"--component-render-stop",
"--render-stop",
"--commit-start-16",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--layout-effects-start-16",
"--schedule-state-update-1-Example",
"--layout-effects-stop",
"--render-start-1",
"--component-render-start-Example",
"--component-render-stop",
"--render-stop",
"--commit-start-1",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--commit-stop",
"--commit-stop",
]
`);
});
it('should mark cascading class component force updates', () => {
class Example extends React.Component {
componentDidMount() {
this.forceUpdate();
}
render() {
return null;
}
}
renderRootHelper(<Example />);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-16",
]
`);
clearPendingMarks();
expect(Scheduler).toFlushUntilNextPaint([]);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--render-start-16",
"--component-render-start-Example",
"--component-render-stop",
"--render-stop",
"--commit-start-16",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--layout-effects-start-16",
"--schedule-forced-update-1-Example",
"--layout-effects-stop",
"--render-start-1",
"--component-render-start-Example",
"--component-render-stop",
"--render-stop",
"--commit-start-1",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--commit-stop",
"--commit-stop",
]
`);
});
it('should mark render phase state updates for class component', () => {
class Example extends React.Component {
state = {didRender: false};
render() {
if (this.state.didRender === false) {
this.setState({didRender: true});
}
return null;
}
}
renderRootHelper(<Example />);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-16",
]
`);
clearPendingMarks();
let errorMessage;
spyOn(console, 'error').and.callFake(message => {
errorMessage = message;
});
expect(Scheduler).toFlushUntilNextPaint([]);
expect(console.error).toHaveBeenCalledTimes(1);
expect(errorMessage).toContain(
'Cannot update during an existing state transition',
);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--render-start-16",
"--component-render-start-Example",
"--schedule-state-update-16-Example",
"--component-render-stop",
"--render-stop",
"--commit-start-16",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--layout-effects-start-16",
"--layout-effects-stop",
"--commit-stop",
]
`);
});
it('should mark render phase force updates for class component', () => {
let forced = false;
class Example extends React.Component {
render() {
if (!forced) {
forced = true;
this.forceUpdate();
}
return null;
}
}
renderRootHelper(<Example />);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-16",
]
`);
clearPendingMarks();
let errorMessage;
spyOn(console, 'error').and.callFake(message => {
errorMessage = message;
});
expect(Scheduler).toFlushUntilNextPaint([]);
expect(console.error).toHaveBeenCalledTimes(1);
expect(errorMessage).toContain(
'Cannot update during an existing state transition',
);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--render-start-16",
"--component-render-start-Example",
"--schedule-forced-update-16-Example",
"--component-render-stop",
"--render-stop",
"--commit-start-16",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--layout-effects-start-16",
"--layout-effects-stop",
"--commit-stop",
]
`);
});
it('should mark cascading layout updates', () => {
function Example() {
const [didMount, setDidMount] = React.useState(false);
React.useLayoutEffect(() => {
setDidMount(true);
}, []);
return didMount;
}
renderRootHelper(<Example />);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-16",
]
`);
clearPendingMarks();
expect(Scheduler).toFlushUntilNextPaint([]);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--render-start-16",
"--component-render-start-Example",
"--component-render-stop",
"--render-stop",
"--commit-start-16",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--layout-effects-start-16",
"--component-layout-effect-mount-start-Example",
"--schedule-state-update-1-Example",
"--component-layout-effect-mount-stop",
"--layout-effects-stop",
"--render-start-1",
"--component-render-start-Example",
"--component-render-stop",
"--render-stop",
"--commit-start-1",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--commit-stop",
"--commit-stop",
]
`);
});
it('should mark cascading passive updates', () => {
function Example() {
const [didMount, setDidMount] = React.useState(false);
React.useEffect(() => {
setDidMount(true);
}, []);
return didMount;
}
renderRootHelper(<Example />);
expect(Scheduler).toFlushAndYield([]);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-16",
"--render-start-16",
"--component-render-start-Example",
"--component-render-stop",
"--render-stop",
"--commit-start-16",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--layout-effects-start-16",
"--layout-effects-stop",
"--commit-stop",
"--passive-effects-start-16",
"--component-passive-effect-mount-start-Example",
"--schedule-state-update-16-Example",
"--component-passive-effect-mount-stop",
"--passive-effects-stop",
"--render-start-16",
"--component-render-start-Example",
"--component-render-stop",
"--render-stop",
"--commit-start-16",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--commit-stop",
]
`);
});
it('should mark render phase updates', () => {
function Example() {
const [didRender, setDidRender] = React.useState(false);
if (!didRender) {
setDidRender(true);
}
return didRender;
}
renderRootHelper(<Example />);
expect(Scheduler).toFlushAndYield([]);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-16",
"--render-start-16",
"--component-render-start-Example",
"--schedule-state-update-16-Example",
"--component-render-stop",
"--render-stop",
"--commit-start-16",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--layout-effects-start-16",
"--layout-effects-stop",
"--commit-stop",
]
`);
});
it('should mark sync render that throws', async () => {
spyOn(console, 'error');
class ErrorBoundary extends React.Component {
state = {error: null};
componentDidCatch(error) {
this.setState({error});
}
render() {
if (this.state.error) {
return null;
}
return this.props.children;
}
}
function ExampleThatThrows() {
throw Error('Expected error');
}
renderHelper(
<ErrorBoundary>
<ExampleThatThrows />
</ErrorBoundary>,
);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-1",
"--render-start-1",
"--component-render-start-ErrorBoundary",
"--component-render-stop",
"--component-render-start-ExampleThatThrows",
"--component-render-start-ExampleThatThrows",
"--component-render-stop",
"--error-ExampleThatThrows-mount-Expected error",
"--render-stop",
"--commit-start-1",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--layout-effects-start-1",
"--schedule-state-update-1-ErrorBoundary",
"--layout-effects-stop",
"--commit-stop",
"--render-start-1",
"--component-render-start-ErrorBoundary",
"--component-render-stop",
"--render-stop",
"--commit-start-1",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--commit-stop",
]
`);
});
it('should mark concurrent render that throws', async () => {
spyOn(console, 'error');
class ErrorBoundary extends React.Component {
state = {error: null};
componentDidCatch(error) {
this.setState({error});
}
render() {
if (this.state.error) {
return null;
}
return this.props.children;
}
}
function ExampleThatThrows() {
// eslint-disable-next-line no-throw-literal
throw 'Expected error';
}
renderRootHelper(
<ErrorBoundary>
<ExampleThatThrows />
</ErrorBoundary>,
);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-16",
]
`);
clearPendingMarks();
expect(Scheduler).toFlushUntilNextPaint([]);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--render-start-16",
"--component-render-start-ErrorBoundary",
"--component-render-stop",
"--component-render-start-ExampleThatThrows",
"--component-render-start-ExampleThatThrows",
"--component-render-stop",
"--error-ExampleThatThrows-mount-Expected error",
"--render-stop",
"--render-start-16",
"--component-render-start-ErrorBoundary",
"--component-render-stop",
"--component-render-start-ExampleThatThrows",
"--component-render-start-ExampleThatThrows",
"--component-render-stop",
"--error-ExampleThatThrows-mount-Expected error",
"--render-stop",
"--commit-start-16",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--layout-effects-start-16",
"--schedule-state-update-1-ErrorBoundary",
"--layout-effects-stop",
"--render-start-1",
"--component-render-start-ErrorBoundary",
"--component-render-stop",
"--render-stop",
"--commit-start-1",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--commit-stop",
"--commit-stop",
]
`);
});
it('should mark passive and layout effects', async () => {
function ComponentWithEffects() {
React.useLayoutEffect(() => {
Scheduler.unstable_yieldValue('layout 1 mount');
return () => {
Scheduler.unstable_yieldValue('layout 1 unmount');
};
}, []);
React.useEffect(() => {
Scheduler.unstable_yieldValue('passive 1 mount');
return () => {
Scheduler.unstable_yieldValue('passive 1 unmount');
};
}, []);
React.useLayoutEffect(() => {
Scheduler.unstable_yieldValue('layout 2 mount');
return () => {
Scheduler.unstable_yieldValue('layout 2 unmount');
};
}, []);
React.useEffect(() => {
Scheduler.unstable_yieldValue('passive 2 mount');
return () => {
Scheduler.unstable_yieldValue('passive 2 unmount');
};
}, []);
React.useEffect(() => {
Scheduler.unstable_yieldValue('passive 3 mount');
return () => {
Scheduler.unstable_yieldValue('passive 3 unmount');
};
}, []);
return null;
}
const unmount = renderRootHelper(<ComponentWithEffects />);
expect(Scheduler).toFlushUntilNextPaint([
'layout 1 mount',
'layout 2 mount',
]);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-16",
"--render-start-16",
"--component-render-start-ComponentWithEffects",
"--component-render-stop",
"--render-stop",
"--commit-start-16",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--layout-effects-start-16",
"--component-layout-effect-mount-start-ComponentWithEffects",
"--component-layout-effect-mount-stop",
"--component-layout-effect-mount-start-ComponentWithEffects",
"--component-layout-effect-mount-stop",
"--layout-effects-stop",
"--commit-stop",
]
`);
clearPendingMarks();
expect(Scheduler).toFlushAndYield([
'passive 1 mount',
'passive 2 mount',
'passive 3 mount',
]);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--passive-effects-start-16",
"--component-passive-effect-mount-start-ComponentWithEffects",
"--component-passive-effect-mount-stop",
"--component-passive-effect-mount-start-ComponentWithEffects",
"--component-passive-effect-mount-stop",
"--component-passive-effect-mount-start-ComponentWithEffects",
"--component-passive-effect-mount-stop",
"--passive-effects-stop",
]
`);
clearPendingMarks();
expect(Scheduler).toFlushAndYield([]);
unmount();
expect(Scheduler).toHaveYielded([
'layout 1 unmount',
'layout 2 unmount',
'passive 1 unmount',
'passive 2 unmount',
'passive 3 unmount',
]);
expect(clearedMarks).toMatchInlineSnapshot(`
Array [
"--schedule-render-1",
"--render-start-1",
"--render-stop",
"--commit-start-1",
"--react-version-<filtered-version>",
"--profiler-version-1",
"--react-internal-module-start- at filtered (<anonymous>:0:0)",
"--react-internal-module-stop- at filtered (<anonymous>:1:1)",
"--react-lane-labels-Sync,InputContinuousHydration,InputContinuous,DefaultHydration,Default,TransitionHydration,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Transition,Retry,Retry,Retry,Retry,Retry,SelectiveHydration,IdleHydration,Idle,Offscreen",
"--component-layout-effect-unmount-start-ComponentWithEffects",
"--component-layout-effect-unmount-stop",
"--component-layout-effect-unmount-start-ComponentWithEffects",