jest.config.js

// Copyright 2020 Google Inc. All rights reserved.
//
// Licensed 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.

module.exports = {
  transform: {
    "^.+\\.[jt]sx?$": "<rootDir>/jest-preprocess.js",
  },
  moduleNameMapper: {
    "@/(.*)": "<rootDir>/src/$1",
    ".+\\.(css|styl|less|sass|scss)$": `identity-obj-proxy`,
    ".+\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": `<rootDir>/__mocks__/file-mock.js`,
    "^gatsby-core-utils/(.*)$": `gatsby-core-utils/dist/$1`, // Workaround for https://github.com/facebook/jest/issues/9771
    "^gatsby-plugin-utils/(.*)$": [
      `gatsby-plugin-utils/dist/$1`,
      `gatsby-plugin-utils/$1`,
    ], // Workaround for https://github.com/facebook/jest/issues/9771,
    "^gatsby-page-utils/(.*)$": `gatsby-page-utils/dist/$1`, // Workaround for https://github.com/facebook/jest/issues/9771
  },
  testPathIgnorePatterns: [`node_modules`, `\\.cache`, `<rootDir>.*/public`],
  transformIgnorePatterns: [`node_modules/(?!(gatsby)/)`],
  globals: {
    __PATH_PREFIX__: ``,
  },
  setupFiles: [`<rootDir>/loadershim.js`],
}