ReactTestRenderer-test.internal.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
 * @jest-environment node
 */

'use strict';

const ReactFeatureFlags = require('shared/ReactFeatureFlags');
const React = require('react');
const ReactTestRenderer = require('react-test-renderer');
const {format: prettyFormat} = require('pretty-format');
const InternalTestUtils = require('internal-test-utils');
const waitForAll = InternalTestUtils.waitForAll;
const act = InternalTestUtils.act;
const Reconciler = require('react-reconciler/src/ReactFiberReconciler');
const {
  ConcurrentRoot,
  LegacyRoot,
} = require('react-reconciler/src/ReactRootTags');

// Isolate noop renderer
jest.resetModules();
const ReactNoop = require('react-noop-renderer');

// Kind of hacky, but we nullify all the instances to test the tree structure
// with jasmine's deep equality function, and test the instances separate. We
// also delete children props because testing them is more annoying and not
// really important to verify.
function cleanNodeOrArray(node) {
  if (!node) {
    return;
  }
  if (Array.isArray(node)) {
    node.forEach(cleanNodeOrArray);
    return;
  }
  if (node && node.instance) {
    node.instance = null;
  }
  if (node && node.props && node.props.children) {
    const {children, ...props} = node.props;
    node.props = props;
  }
  if (Array.isArray(node.rendered)) {
    node.rendered.forEach(cleanNodeOrArray);
  } else if (typeof node.rendered === 'object') {
    cleanNodeOrArray(node.rendered);
  }
}

describe('ReactTestRenderer', () => {
  beforeEach(() => {
    jest.resetModules();
    ReactFeatureFlags.enableReactTestRendererWarning = false;
  });
// ... (1181 more lines)