EventPluginRegistry-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
 */

'use strict';

describe('EventPluginRegistry', () => {
  let EventPluginRegistry;
  let createPlugin;

  beforeEach(() => {
    jest.resetModules();
    // These tests are intentionally testing the private injection interface.
    // The public API surface of this is covered by other tests so
    // if `EventPluginRegistry` is ever deleted, these tests should be
    // safe to remove too.
    EventPluginRegistry = require('react-native-renderer/src/legacy-events/EventPluginRegistry');

    createPlugin = function (properties) {
      return Object.assign({extractEvents: function () {}}, properties);
    };
  });

  it('should be able to inject ordering before plugins', () => {
    const OnePlugin = createPlugin();
    const TwoPlugin = createPlugin();
    const ThreePlugin = createPlugin();

    EventPluginRegistry.injectEventPluginOrder(['one', 'two', 'three']);
    EventPluginRegistry.injectEventPluginsByName({
      one: OnePlugin,
      two: TwoPlugin,
    });
    EventPluginRegistry.injectEventPluginsByName({
      three: ThreePlugin,
    });

    expect(EventPluginRegistry.plugins.length).toBe(3);
    expect(EventPluginRegistry.plugins[0]).toBe(OnePlugin);
    expect(EventPluginRegistry.plugins[1]).toBe(TwoPlugin);
    expect(EventPluginRegistry.plugins[2]).toBe(ThreePlugin);
  });

  it('should be able to inject plugins before and after ordering', () => {
    const OnePlugin = createPlugin();
    const TwoPlugin = createPlugin();
    const ThreePlugin = createPlugin();

    EventPluginRegistry.injectEventPluginsByName({
      one: OnePlugin,
      two: TwoPlugin,
    });
    EventPluginRegistry.injectEventPluginOrder(['one', 'two', 'three']);
    EventPluginRegistry.injectEventPluginsByName({
      three: ThreePlugin,
// ... (178 more lines)