recoil/cjs/hooks/__tests__/Recoil_useRecoilBridgeAcrossReactRoots-test.js.flow

Recoil - A state management library for React

/**
 * 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.
 *
 * @emails oncall+recoil
 * @flow strict-local
 * @format
 */
'use strict';

const {
  getRecoilTestFn
} = require('../../__test_utils__/Recoil_TestingUtils');

let React, useEffect, useRef, ReactDOM, act, RecoilRoot, atom, componentThatReadsAndWritesAtom, useRecoilBridgeAcrossReactRoots;
const testRecoil = getRecoilTestFn(() => {
  React = require('react');
  ({
    useEffect,
    useRef
  } = require('react'));
  ReactDOM = require('ReactDOMLegacy_DEPRECATED');
  ({
    act
  } = require('ReactTestUtils'));
  ({
    RecoilRoot
  } = require('../../core/Recoil_RecoilRoot.react'));
  atom = require('../../recoil_values/Recoil_atom');
  ({
    componentThatReadsAndWritesAtom
  } = require('../../__test_utils__/Recoil_TestingUtils'));
  useRecoilBridgeAcrossReactRoots = require('../Recoil_useRecoilBridgeAcrossReactRoots');
});
testRecoil('useRecoilBridgeAcrossReactRoots - create a context bridge', async () => {
  const myAtom = atom({
    key: 'useRecoilBridgeAcrossReactRoots - context bridge',
    default: 'DEFAULT'
  });
  declare function initializeState(arg0: any): any;
  const [ReadWriteAtom, setAtom] = componentThatReadsAndWritesAtom(myAtom);
  declare function NestedReactRoot(arg0: any): any;
  const container = document.createElement('div');
  act(() => {
    ReactDOM.render(<RecoilRoot initializeState={initializeState}>
          <ReadWriteAtom />

          <NestedReactRoot>
            <ReadWriteAtom />
          </NestedReactRoot>
        </RecoilRoot>, container);
  });
  expect(container.textContent).toEqual('"INITIALIZE""INITIALIZE"');
  act(() => setAtom('SET'));
  expect(container.textContent).toEqual('"SET""SET"');
});