ReactChildReconciler-test.js — react Source File

Source Code

/**
 * 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.
 *
 * @emails react-core
 */

// NOTE: We're explicitly not using JSX here. This is intended to test
// the current stack addendum without having source location added by babel.

'use strict';

let React;
let ReactDOMClient;
let act;
let assertConsoleErrorDev;

describe('ReactChildReconciler', () => {
  beforeEach(() => {
    jest.resetModules();

    React = require('react');
    ReactDOMClient = require('react-dom/client');
    ({act, assertConsoleErrorDev} = require('internal-test-utils'));
  });

  function createIterable(array) {
    return {
      '@@iterator': function () {
        let i = 0;
        return {
          next() {
            const next = {
              value: i < array.length ? array[i] : undefined,
              done: i === array.length,
            };
            i++;
            return next;
          },
        };
      },
    };
  }

  function makeIterableFunction(value) {
    const fn = () => {};
    fn['@@iterator'] = function iterator() {
      let timesCalled = 0;
      return {
        next() {
          const done = timesCalled++ > 0;
          return {done, value: done ? undefined : value};
        },
      };
    };
    return fn;
  }

// ... (142 more lines)