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Don't Rethrow Errors at the Root (#28627)
Summary: Stacked on top of #28498 for test fixes. ### Don't Rethrow When we started React it was 1:1 setState calls a series of renders and if they error, it errors where the setState was called. Simple. However, then batching came and the error actually got thrown somewhere else. With concurrent mode, it's not even possible to get setState itself to throw anymore. In fact, all APIs that can rethrow out of React are executed either at the root of the scheduler or inside a DOM event handler. If you throw inside a React.startTransition callback that's sync, then that will bubble out of the startTransition but if you throw inside an async callback or a useTransition we now need to handle it at the hook site. So in 19 we need to make all React.startTransition swallow the error (and report them to reportError). The only one remaining that can throw is flushSync but it doesn't really make sense for it to throw at the callsite neither because batching. Just because something rendered in this flush doesn't mean it was rendered due to what was just scheduled and doesn't mean that it should abort any of the remaining code afterwards. setState is fire and forget. It's send an instruction elsewhere, it's not part of the current imperative code. Error boundaries never rethrow. Since you should really always have error boundaries, most of the time, it wouldn't rethrow anyway. Rethrowing also actually currently drops errors on the floor since we can only rethrow the first error, so to avoid that we'd need to call reportError anyway. This happens in RN events. The other issue with rethrowing is that it logs an extra console.error. Since we're not sure that user code will actually log it anywhere we still log it too just like we do with errors inside error boundaries which leads all of these to log twice. The goal of this PR is to never rethrow out of React instead, errors outside of error boundaries get logged to reportError. Event system errors too. ### Breaking Changes The main thing this affects is testing where you want to inspect the errors thrown. To make it easier to port, if you're inside `act` we track the error into act in an aggregate error and then rethrow it at the root of `act`. Unlike before though, if you flush synchronously inside of act it'll still continue until the end of act before rethrowing. I expect most user code breakages would be to migrate from `flushSync` to `act` if you assert on throwing. However, in the React repo we also have `internalAct` and the `waitForThrow` helpers. Since these have to use public production implementations we track these using the global onerror or process uncaughtException. Unlike regular act, includes both event handler errors and onRecoverableError by default too. Not just render/commit errors. So I had to account for that in our tests. We restore logging an extra log for uncaught errors after the main log with the component stack in it. We use `console.warn`. This is not yet ignorable if you preventDefault to the main error event. To avoid confusion if you don't end up logging the error to console I just added `An error occurred`. ### Polyfill All browsers we support really supports `reportError` but not all test and server environments do, so I implemented a polyfill for browser and node in `shared/reportGlobalError`. I don't love that this is included in all builds and gets duplicated into isomorphic even though it's not actually needed in production. Maybe in the future we can require a polyfill for this. ### Follow Ups In a follow up, I'll make caught vs uncaught error handling be configurable too. --------- DiffTrain build for commit https://github.com/facebook/react/commit/6786563f3cbbc9b16d5a8187207b5bd904386e53. Changelog: [Internal] Reviewed By: kassens Differential Revision: D55408481 Pulled By: yungsters fbshipit-source-id: 598aa306369e21cb3e93ad6041a87bfbaa9eef9e Co-authored-by: Ricky Hanlon <rickhanlonii@gmail.com>
This commit is contained in:
committed by
Facebook GitHub Bot
co-authored by
Ricky Hanlon
parent
e175912e7d
commit
78d6873b04
+33
-37
@@ -25,7 +25,7 @@ jest
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import {format} from 'node:util';
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import * as React from 'react';
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import TestRenderer from 'react-test-renderer';
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import {act, create} from 'react-test-renderer';
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const Animated = require('../Animated').default;
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const NativeAnimatedHelper = require('../NativeAnimatedHelper').default;
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@@ -67,7 +67,7 @@ describe('Native Animated', () => {
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useNativeDriver: true,
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}).start();
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TestRenderer.create(<Animated.View ref={ref} style={{opacity}} />);
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create(<Animated.View ref={ref} style={{opacity}} />);
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expect(ref.current).not.toBeNull();
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jest.spyOn(ref.current, 'setNativeProps');
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@@ -86,7 +86,7 @@ describe('Native Animated', () => {
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opacity.setOffset(10);
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opacity.__makeNative();
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TestRenderer.create(<Animated.View style={{opacity}} />);
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create(<Animated.View style={{opacity}} />);
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expect(NativeAnimatedModule.createAnimatedNode).toBeCalledWith(
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expect.any(Number),
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@@ -103,7 +103,7 @@ describe('Native Animated', () => {
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const opacity = new Animated.Value(0);
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opacity.__makeNative();
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TestRenderer.create(<Animated.View style={{opacity}} />);
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create(<Animated.View style={{opacity}} />);
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expect(NativeAnimatedModule.createAnimatedNode).toBeCalledWith(
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expect.any(Number),
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@@ -123,7 +123,7 @@ describe('Native Animated', () => {
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opacity.__makeNative();
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const root = TestRenderer.create(<Animated.View style={{opacity}} />);
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const root = create(<Animated.View style={{opacity}} />);
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const tag = opacity.__getNativeTag();
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root.unmount();
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@@ -145,7 +145,7 @@ describe('Native Animated', () => {
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opacity.setOffset(0.5);
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opacity.__makeNative();
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const root = TestRenderer.create(<Animated.View style={{opacity}} />);
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const root = create(<Animated.View style={{opacity}} />);
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const tag = opacity.__getNativeTag();
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root.unmount();
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@@ -161,7 +161,7 @@ describe('Native Animated', () => {
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const opacity = new Animated.Value(0);
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opacity.__makeNative();
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TestRenderer.create(<Animated.View style={{opacity}} />);
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create(<Animated.View style={{opacity}} />);
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expect(NativeAnimatedModule.createAnimatedNode).toBeCalledWith(
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expect.any(Number),
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@@ -250,7 +250,7 @@ describe('Native Animated', () => {
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useNativeDriver: true,
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});
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const root = TestRenderer.create(<Animated.View onTouchMove={event} />);
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const root = create(<Animated.View onTouchMove={event} />);
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expect(NativeAnimatedModule.addAnimatedEventToView).toBeCalledWith(
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expect.any(Number),
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'onTouchMove',
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@@ -278,7 +278,7 @@ describe('Native Animated', () => {
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useNativeDriver: true,
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});
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TestRenderer.create(<Animated.View onTouchMove={event} />);
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create(<Animated.View onTouchMove={event} />);
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['x', 'y'].forEach((key, idx) =>
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expect(
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NativeAnimatedModule.addAnimatedEventToView,
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@@ -289,7 +289,7 @@ describe('Native Animated', () => {
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);
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});
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it('should throw on invalid event path', () => {
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it('should throw on invalid event path', async () => {
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const value = new Animated.Value(0);
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value.__makeNative();
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const event = Animated.event([{notNativeEvent: {foo: value}}], {
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@@ -305,9 +305,11 @@ describe('Native Animated', () => {
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consoleError(...args);
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});
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expect(() => {
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TestRenderer.create(<Animated.View onTouchMove={event} />);
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}).toThrowError(/nativeEvent/);
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await expect(async () => {
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await act(() => {
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create(<Animated.View onTouchMove={event} />);
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});
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}).rejects.toThrowError(/nativeEvent/);
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expect(NativeAnimatedModule.addAnimatedEventToView).not.toBeCalled();
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console.error.mockRestore();
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@@ -331,7 +333,7 @@ describe('Native Animated', () => {
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describe('Animated Graph', () => {
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it('creates and detaches nodes', () => {
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const opacity = new Animated.Value(0);
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const root = TestRenderer.create(<Animated.View style={{opacity}} />);
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const root = create(<Animated.View style={{opacity}} />);
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Animated.timing(opacity, {
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toValue: 10,
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@@ -371,7 +373,7 @@ describe('Native Animated', () => {
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it('sends a valid description for value, style and props nodes', () => {
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const opacity = new Animated.Value(0);
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TestRenderer.create(<Animated.View style={{opacity}} />);
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create(<Animated.View style={{opacity}} />);
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Animated.timing(opacity, {
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toValue: 10,
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@@ -399,9 +401,7 @@ describe('Native Animated', () => {
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first.__makeNative();
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second.__makeNative();
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TestRenderer.create(
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<Animated.View style={{opacity: Animated.add(first, second)}} />,
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);
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create(<Animated.View style={{opacity: Animated.add(first, second)}} />);
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expect(NativeAnimatedModule.createAnimatedNode).toBeCalledWith(
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expect.any(Number),
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@@ -443,7 +443,7 @@ describe('Native Animated', () => {
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first.__makeNative();
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second.__makeNative();
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TestRenderer.create(
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create(
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<Animated.View style={{opacity: Animated.subtract(first, second)}} />,
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);
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@@ -487,7 +487,7 @@ describe('Native Animated', () => {
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first.__makeNative();
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second.__makeNative();
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TestRenderer.create(
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create(
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<Animated.View style={{opacity: Animated.multiply(first, second)}} />,
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);
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@@ -531,7 +531,7 @@ describe('Native Animated', () => {
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first.__makeNative();
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second.__makeNative();
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TestRenderer.create(
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create(
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<Animated.View style={{opacity: Animated.divide(first, second)}} />,
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);
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@@ -573,9 +573,7 @@ describe('Native Animated', () => {
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const value = new Animated.Value(4);
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value.__makeNative();
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TestRenderer.create(
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<Animated.View style={{opacity: Animated.modulo(value, 4)}} />,
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);
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create(<Animated.View style={{opacity: Animated.modulo(value, 4)}} />);
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expect(NativeAnimatedModule.createAnimatedNode).toBeCalledWith(
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expect.any(Number),
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@@ -607,7 +605,7 @@ describe('Native Animated', () => {
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const value = new Animated.Value(10);
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value.__makeNative();
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TestRenderer.create(
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create(
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<Animated.View
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style={{
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opacity: value.interpolate({
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@@ -651,9 +649,7 @@ describe('Native Animated', () => {
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const translateX = new Animated.Value(0);
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translateX.__makeNative();
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TestRenderer.create(
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<Animated.View style={{transform: [{translateX}, {scale: 2}]}} />,
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);
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create(<Animated.View style={{transform: [{translateX}, {scale: 2}]}} />);
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expect(NativeAnimatedModule.createAnimatedNode).toBeCalledWith(
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expect.any(Number),
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@@ -678,7 +674,7 @@ describe('Native Animated', () => {
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it('sends create operations before connect operations for multiple animated style props', () => {
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const opacity = new Animated.Value(0);
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const borderRadius = new Animated.Value(0);
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TestRenderer.create(<Animated.View style={{borderRadius, opacity}} />);
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create(<Animated.View style={{borderRadius, opacity}} />);
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Animated.timing(opacity, {
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toValue: 10,
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@@ -772,7 +768,7 @@ describe('Native Animated', () => {
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it('sends create operations before connect operations for multiple animated transform props', () => {
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const translateX = new Animated.Value(0);
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const translateY = new Animated.Value(0);
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TestRenderer.create(
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create(
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<Animated.View
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style={{
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transform: [{translateX: translateX}, {translateY: translateY}],
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@@ -894,7 +890,7 @@ describe('Native Animated', () => {
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it('sends create operations before connect operations for multiple animated props', () => {
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const propA = new Animated.Value(0);
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const propB = new Animated.Value(0);
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TestRenderer.create(<Animated.View propA={propA} propB={propB} />);
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create(<Animated.View propA={propA} propB={propB} />);
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Animated.timing(propA, {
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toValue: 10,
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@@ -967,7 +963,7 @@ describe('Native Animated', () => {
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const value = new Animated.Value(2);
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value.__makeNative();
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TestRenderer.create(
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create(
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<Animated.View style={{opacity: Animated.diffClamp(value, 0, 20)}} />,
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);
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@@ -1000,7 +996,7 @@ describe('Native Animated', () => {
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it("doesn't call into native API if useNativeDriver is set to false", () => {
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const opacity = new Animated.Value(0);
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const root = TestRenderer.create(<Animated.View style={{opacity}} />);
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const root = create(<Animated.View style={{opacity}} />);
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Animated.timing(opacity, {
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toValue: 10,
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@@ -1017,7 +1013,7 @@ describe('Native Animated', () => {
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const opacity = new Animated.Value(0);
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const ref = React.createRef(null);
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TestRenderer.create(<Animated.View ref={ref} style={{opacity}} />);
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create(<Animated.View ref={ref} style={{opacity}} />);
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// Necessary to simulate the native animation.
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expect(ref.current).not.toBeNull();
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@@ -1046,7 +1042,7 @@ describe('Native Animated', () => {
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it('fails for unsupported styles', () => {
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const left = new Animated.Value(0);
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TestRenderer.create(<Animated.View style={{left}} />);
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create(<Animated.View style={{left}} />);
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const animation = Animated.timing(left, {
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toValue: 10,
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@@ -1061,7 +1057,7 @@ describe('Native Animated', () => {
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const opacity = new Animated.Value(0);
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opacity.__makeNative();
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TestRenderer.create(
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create(
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<Animated.View
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removeClippedSubviews={true}
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style={{left: 10, opacity, top: 20}}
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@@ -1269,7 +1265,7 @@ describe('Native Animated', () => {
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const opacity = new Animated.Value(0);
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opacity.__makeNative();
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const root = TestRenderer.create(<Animated.View style={{opacity}} />);
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const root = create(<Animated.View style={{opacity}} />);
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expect(NativeAnimatedModule.restoreDefaultValues).not.toHaveBeenCalled();
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root.update(<Animated.View style={{opacity}} />);
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