Enforce JavaScript Code Quality While Commit

jest.config.js

module.exports = {
  roots: ['<rootDir>/src'], // Find files in the src/root directory
  collectCoverage: true, // Statistical coverage
  coverageDirectory: 'coverage', // The folder where coverage results are output
  coverageThreshold: {
    // Total coverage requirements for all documents
    global: {
      branches: 80,
      functions: 80,
      lines: 80,
      statements: 80,
    },
    // Coverage requirement of the matched single file
    // Wildcard configuration is also supported here
    './src/**/*.{ts,tsx}': {
      branches: 60,
      functions: 60,
      lines: 60,
      statements: 60,
    },
  },
  // File matching unit test case
  testMatch: ['<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}', '<rootDir>/src/**/*.{spec,test}.{js,jsx,ts,tsx}'],
  // Is the current environment jsdom or node
  testEnvironment: 'jsdom',
  // Set alias, if not set, the @ symbol will not be recognized when running single test
  moduleNameMapper: {
    '^@/(.*)$': '<rootDir>/src/$1',
  },
};