jest.config.js

/*
 * For a detailed explanation regarding each configuration property, visit:
 * https://jestjs.io/docs/configuration
 */

module.exports = {
  // Automatically clear mock calls, instances, contexts and results before every test
  clearMocks: true,

  // Indicates whether the coverage information should be collected while executing the test
  collectCoverage: true,

  // The directory where Jest should output its coverage files
  coverageDirectory: 'coverage',

  // A list of paths to directories that Jest should use to search for files in
  roots: ['<rootDir>/src', '<rootDir>/tests'],

  // Indicates whether each individual test should be reported during the run
  verbose: true,

  // An array of regexp patterns that are matched against all source file paths before re-running tests in watch mode
  watchPathIgnorePatterns: [
    '<rootDir>/tests/fixtures/build',
    '<rootDir>/tests/fixtures/dist',
    '<rootDir>/tests/fixtures/src/index.js'
  ]
};