jest.config.js

// Jest setup based on
// with-jest: https://github.com/vercel/next.js/tree/canary/examples/with-typescript-eslint-jest
// create-react-app: https://github.com/facebook/create-react-app/blob/master/packages/react-scripts/scripts/utils/createJestConfig.js#L25

module.exports = {
  testEnvironment: "jsdom",
  collectCoverageFrom: [
    "**/*.{js,jsx,ts,tsx}",
    "!**/*.d.ts",
    "!**/node_modules/**",
  ],
  moduleNameMapper: {
    "^.+\\.module\\.(css|less|sass|scss)$": "identity-obj-proxy",
    "^.+\\.(css|sass|scss)$": "<rootDir>/__mocks__/styleMock.js",
    "^.+\\.(jpg|jpeg|png|gif|webp|svg)$": `<rootDir>/__mocks__/fileMock.js`,
  },
  setupFilesAfterEnv: ["<rootDir>/setupTests.ts"],
  testPathIgnorePatterns: ["<rootDir>/node_modules/", "<rootDir>/.next/"],
  transform: {
    "^.+\\.(js|jsx|ts|tsx)$": ["babel-jest", { presets: ["next/babel"] }],
  },
  transformIgnorePatterns: [
    "/node_modules/",
    "^.+\\.module\\.(css|sass|scss)$",
  ],
  watchPlugins: [
    "jest-watch-typeahead/filename",
    "jest-watch-typeahead/testname",
  ],
  resetMocks: true,
};