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export default { preset: 'ts-jest', testEnvironment: 'node', extensionsToTreatAsEsm: ['.ts'], moduleNameMapper: { '^(\\.{1,2}/.*)\\.js$': '$1' }, transform: { '^.+\\.tsx?$': [ 'ts-jest', { useESM: true, }, ], }, transformIgnorePatterns: [ 'node_modules/(?!(googleapis|google-auth-library)/)' ], testMatch: ['**/tests/**/*.test.ts'], coverageDirectory: 'coverage', collectCoverageFrom: [ 'src/**/*.ts', '!src/types/**/*.ts', '!src/**/*.d.ts' ], coverageThreshold: { global: { branches: 80, functions: 80, lines: 80, statements: 80 } }, // Run tests in a single process maxWorkers: 1, // Shorter timeout to fail fast testTimeout: 5000, // Force cleanup forceExit: true, // Suppress console errors setupFilesAfterEnv: ['<rootDir>/jest.setup.js'] };