/** @type {import('jest').Config} */
module.exports = {
// Use ts-jest preset for TypeScript support
preset: 'ts-jest',
// Root directory for Jest to scan for tests and modules
rootDir: '.',
// Configure different environments for different test files
projects: [
{
displayName: 'node',
preset: 'ts-jest',
testEnvironment: 'node',
testMatch: ['<rootDir>/tests/**/*.test.ts', '<rootDir>/src/**/*.test.ts'],
moduleFileExtensions: ['ts', 'js', 'json'],
moduleNameMapper: {
'^@shared/(.*)$': '<rootDir>/../../shared/$1'
},
transform: {
'^.+\\.ts$': ['ts-jest', {
tsconfig: {
strict: true,
module: 'commonjs',
target: 'es2020',
skipLibCheck: false
}
}]
}
},
{
displayName: 'jsdom',
preset: 'ts-jest',
testEnvironment: 'jsdom',
testMatch: ['<rootDir>/tests/**/*.test.tsx'],
testPathIgnorePatterns: ['<rootDir>/tests/useProfanityChecker.test.tsx'],
moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json'],
moduleNameMapper: {
'^@shared/(.*)$': '<rootDir>/../../shared/$1'
},
setupFilesAfterEnv: ['@testing-library/jest-dom'],
transform: {
'^.+\\.(ts|tsx)$': ['ts-jest', {
tsconfig: {
strict: true,
module: 'commonjs',
target: 'es2020',
skipLibCheck: false,
jsx: 'react-jsx'
}
}]
}
}
],
// Coverage configuration
collectCoverageFrom: [
'src/**/*.{ts,tsx}',
'!src/**/*.d.ts',
'!src/**/index.ts'
],
// Coverage thresholds - make them warnings instead of failures
coverageThreshold: {
global: {
branches: 0,
functions: 0,
lines: 0,
statements: 0
}
},
// Coverage reporters
coverageReporters: ['text', 'lcov', 'html'],
// Coverage directory
coverageDirectory: 'coverage',
// Clear mocks between tests
clearMocks: true,
// Restore mocks after each test
restoreMocks: true,
// Verbose output for better debugging
verbose: true,
// Error reporting
errorOnDeprecated: true
};
