react_warnings.ts

/*
 * Licensed to Elasticsearch B.V. under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch B.V. licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

/*
  Use this utility to throw errors whenever React complains via the console
  about things like invalid propTypes. This lets us assert that a propType
  check works correctly with `toThrow`.

  Usage looks like:

  beforeAll(startThrowingReactWarnings);
  afterAll(stopThrowingReactWarnings);
*/

const consoleWarn = console.warn;
const consoleError = console.error;

export const startThrowingReactWarnings = () => {
  console.warn = console.error = (msg: any) => {
    throw msg;
  };
};

export const stopThrowingReactWarnings = () => {
  console.warn = consoleWarn;
  console.error = consoleError;
};