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packages/jest-preset/jest/mockNativeComponent.js
52 строки
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Marco Wang
transformTypeParamBound codemod 8/9 (#55949)
06 мар 2026, 22:24
06 мар 2026, 22:24
f596bb3
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/** * Copyright (c) Meta Platforms, Inc. and affiliates. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. * * @flow strict * @format */ import type {HostInstance} from 'react-native/src/private/types/HostInstance'; import * as React from 'react'; import {createElement} from 'react'; let nativeTag = 1; type MockNativeComponent<TProps extends {...}> = component( ref?: ?React.RefSetter<HostInstance>, ...props: TProps ); export default function mockNativeComponent<TProps extends {...}>( viewName: string, ): MockNativeComponent<TProps> { const Component = class extends React.Component<TProps> { _nativeTag: number = nativeTag++; render(): React.Node { // $FlowFixMe[not-a-function] // $FlowFixMe[prop-missing] return createElement(viewName, this.props, this.props.children); } // The methods that exist on host components blur: () => void = jest.fn(); focus: () => void = jest.fn(); measure: () => void = jest.fn(); measureInWindow: () => void = jest.fn(); measureLayout: () => void = jest.fn(); setNativeProps: () => void = jest.fn(); }; if (viewName === 'RCTView') { Component.displayName = 'View'; } else { Component.displayName = viewName; } // $FlowFixMe[incompatible-type] - Error supressed during the migration of HostInstance to ReactNativeElement return Component; }