jest.config.js

export default {
    // The bail config option can be used here to have Jest stop running tests after
    // the first failure.
    bail: false,

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

    moduleFileExtensions: [
      "js"
    ],

    moduleDirectories: [
      "node_modules",
    ],

    roots: [
    "<rootDir>"
    ],

    collectCoverageFrom: [
      "src/**/*.{js,jsx}"
    ],

    // Indicates whether the coverage information should be collected while executing the test
    collectCoverage: true,
    coverageReporters: ['text', 'cobertura'],

    // The directory where Jest should output its coverage files.
    coverageDirectory: "<rootDir>/coverage/",

    // If the test path matches any of the patterns, it will be skipped.
    testPathIgnorePatterns: [
      "node_modules/",
      "<rootDir>/src/index.js",
      "<rootDir>/src/server.js"
    ],

    // The pattern Jest uses to detect test files.
    testRegex: "(/__tests__/.*|(\\.|/)(test|spec))\\.jsx?$",

    // If the file path matches any of the patterns, coverage information will be skipped.
    coveragePathIgnorePatterns: [
      "node_modules/",
      "src/config/",
      "<rootDir>/src/index.js",
      "<rootDir>/src/server.js"
    ],

    // This option sets the URL for the jsdom environment.
    // It is reflected in properties such as location.href.
    // @see: https://github.com/facebook/jest/issues/6769
    testEnvironmentOptions: {
      url: "http://localhost/",
    },

    coverageThreshold: {
    global: {
          statements: 95,
          branches: 90,
          functions: 95,
          lines: 95,
        },
    },
}