/** @type {import('jest').Config} */
export default {
preset: 'ts-jest/presets/default-esm',
extensionsToTreatAsEsm: ['.ts'],
testEnvironment: './jest-env.cjs',
transform: {
'^.+\\.ts$': [
'ts-jest',
{
useESM: true,
tsconfig: {
module: 'ES2022',
target: 'ES2020',
moduleResolution: 'Node',
allowSyntheticDefaultImports: true,
esModuleInterop: true,
isolatedModules: true,
types: ['jest', 'node'],
},
diagnostics: {
ignoreCodes: ['TS151001'],
},
},
],
},
moduleNameMapper: {
'^(\\.{1,2}/.*)\\.js$': '$1',
'^import-meta$': '<rootDir>/src/__mocks__/importMeta.js',
},
transformIgnorePatterns: ['node_modules/'],
testMatch: ['<rootDir>/src/**/*.test.ts', '<rootDir>/src/**/*.spec.ts'],
testPathIgnorePatterns: ['/node_modules/', '/dist/', '<rootDir>/dist/'],
collectCoverageFrom: [
'src/**/*.ts',
'!src/**/*.test.ts',
'!src/**/*.spec.ts',
'!src/**/*.d.ts',
'!src/**/__mocks__/**',
'!src/**/__fixtures__/**',
'!src/utils/projectUtils.ts', // Excluded: import.meta.url line cannot be tested in Jest
],
coveragePathIgnorePatterns: ['/node_modules/', '/dist/'],
// Ignore import.meta.url line in projectUtils.ts
coverageReporters: ['text', 'text-summary', 'html'],
coverageThreshold: {
global: {
statements: 96,
branches: 90,
functions: 98,
lines: 96,
},
},
setupFilesAfterEnv: ['<rootDir>/src/test-setup.ts'],
};
