jest.config.js

module.exports = {

    // Automatically clear mock calls and instances between every test
    clearMocks: true,
  
    // The directory where Jest should output its coverage files
    coverageDirectory: "coverage",
  
    // An array of regexp pattern strings used to skip coverage collection
    coveragePathIgnorePatterns: [
      "/node_modules/"
    ],
  
    // Indicates which provider should be used to instrument code for coverage
    coverageProvider: "v8",
  
    // An array of file extensions your modules use
    moduleFileExtensions: [
      "js",
      "jsx"
    ],
  
    // A list of paths to modules that run some code to configure or set up the testing framework before each test
    setupFilesAfterEnv: ['<rootDir>/enzyme.config.js'],
  
    // The test environment that will be used for testing
    testEnvironment: "node",
  
    // The glob patterns Jest uses to detect test files
    testMatch: [
      "**/__tests__/**/*.[jt]s?(x)",
      "**/?(*.)+(spec|test).[tj]s?(x)"
    ]
  };