jest.config.js

const path = require(`path`);
const glob = require(`glob`);
const fs = require(`fs`);

const pkgs = glob
  .sync(`./packages/*`)
  .map((p) => p.replace(/^\./, `<rootDir>`));

const reMedusa = /medusa$/;
const medusaDir = pkgs.find((p) => reMedusa.exec(p));
const medusaBuildDirs = [`dist`].map((dir) => path.join(medusaDir, dir));
const builtTestsDirs = pkgs
  .filter((p) => fs.existsSync(path.join(p, `src`)))
  .map((p) => path.join(p, `__tests__`));
const distDirs = pkgs.map((p) => path.join(p, `dist`));
const ignoreDirs = [].concat(medusaBuildDirs, builtTestsDirs, distDirs);

const coverageDirs = pkgs.map((p) => path.join(p, `src/**/*.js`));
const useCoverage = !!process.env.GENERATE_JEST_REPORT;

module.exports = {
  notify: true,
  verbose: true,
  roots: pkgs,
  modulePathIgnorePatterns: ignoreDirs,
  coveragePathIgnorePatterns: ignoreDirs,
  testPathIgnorePatterns: [
    `<rootDir>/examples/`,
    `<rootDir>/dist/`,
    `<rootDir>/node_modules/`,
    `__tests__/fixtures`,
  ],
  transform: {
    "^.+\\.[jt]s?$": `<rootDir>/jest-transformer.js`,
  },
  //moduleNameMapper: {
  //  "^highlight.js$": `<rootDir>/node_modules/highlight.js/lib/index.js`,
  //},
  //snapshotSerializers: [`jest-serializer-path`],
  collectCoverageFrom: coverageDirs,
  //reporters: process.env.CI
  //  ? [[`jest-silent-reporter`, { useDots: true }]].concat(
  //      useCoverage ? `jest-junit` : []
  //    )
  //  : [`default`].concat(useCoverage ? `jest-junit` : []),
  testEnvironment: `node`,
  moduleFileExtensions: [`js`, `jsx`, `ts`, `tsx`, `json`],
  // setupFiles: [`<rootDir>/.jestSetup.js`],
};