jest.config.ts

import type { Config } from '@jest/types';

const config: Config.InitialOptions = {
  coverageReporters: ['text'],
  preset: 'ts-jest',
  // The root of your source code, typically /src
  // `<rootDir>` is a token Jest substitutes
  roots: ['<rootDir>'],
  
  // Test spec file resolution pattern
  // Matches parent folder `__tests__` and filename
  // should contain `test` or `spec`.
  testRegex: '(/__tests__/.*|(\\.|/)(test|spec))\\.[jt]sx?$',
  // Module file extensions for importing
  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
  testTimeout: 10000,
  collectCoverageFrom: [
    'src/**'
  ],
};

export default config;