@instructure/canvas-rce/jest/jest-setup-framework.js

A component wrapping Canvas's usage of Tinymce

/*
 * Copyright (C) 2018 - present Instructure, Inc.
 *
 * This file is part of Canvas.
 *
 * Canvas is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License as published by the Free
 * Software Foundation, version 3 of the License.
 *
 * Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Affero General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

import '@testing-library/jest-dom/extend-expect'

if (!('matchMedia' in window)) {
  window.matchMedia = () => ({
    matches: false,
    addListener: () => {},
    removeListener: () => {}
  })
  window.matchMedia._mocked = true
}

if (!('createRange' in document)) {
  // enough for tinymce so these specs pass
  Object.getPrototypeOf(document).createRange = () => ({
    commonAncestorContainer: window.document?.body,
    collapsed: true
  })
}