jest.config.js

module.exports = {
    preset: 'ts-jest',
    testEnvironment: 'node',
    roots: ['<rootDir>/src'],
    // setupFiles: ['<rootDir>/tests/setup.ts'],
    testMatch: ['**/__tests__/**/*.ts', '**/?(*.)+(spec|test).ts'],
    transform: {
        '^.+\\.ts$': 'ts-jest',
    },
    collectCoverageFrom: [
        '<rootDir>/src/**/*.ts',
        '!**/node_modules/**',
        '!<rootDir>/src/**/*.d.ts',
        '!<rootDir>/src/**/__tests__/**',
        '!<rootDir>/src/**/test/**'
    ],
    coverageDirectory: 'coverage',
    coverageReporters: [
        'text',
        'text-summary',
        'lcov',
        'html',
        'json-summary'
    ],
    coverageThreshold: {
        global: {
            branches: 70,
            functions: 70,
            lines: 70,
            statements: 70
        }
    },
    // Help detect open handles that prevent Jest from exiting
    detectOpenHandles: true,
    // Force exit after tests complete (as a safety net)
    forceExit: true
};