jest-preset.js

module.exports = {
  rootDir: process.cwd(),
  testEnvironment: 'node',
  transform: {
    '.(ts|tsx)': 'ts-jest',
  },
  // don't include the __tests__ folders in the templates
  testMatch: ['<rootDir>/src/**/__tests__/*.(ts|js)?(x)'],
  moduleFileExtensions: ['ts', 'tsx', 'js'],
  coveragePathIgnorePatterns: ['/node_modules/', '/__tests__/', '/__stories__/', '__mocks__/', 'index.ts', 'types.ts'],
  collectCoverageFrom: ['src/**/*.{ts,tsx}'],
  transform: {
    '^.+\\.tsx?$': [
      'ts-jest',
      {
        diagnostics: {
          ignoreCodes: [151001],
        },
      },
    ],
  },
};