jest.config.js

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

module.exports = {

  // Stop running tests after `n` failures
  bail: false,

  // Automatically clear mock calls and instances between every test
  clearMocks: true,

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

  // An array of glob patterns indicating a set of files for which coverage information should be collected
  collectCoverageFrom: ['src/**', '!src/database/migrations/**'],

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

  // Indicates which provider should be used to instrument code for coverage
  coverageProvider: 'v8',

  // The test environment that will be used for testing
  testEnvironment: 'node',

  // The glob patterns Jest uses to detect test files
  testMatch: ['**/?(*.)+(spec|test).[tj]s?(x)'],
};