jest.config.js

const { defaults: tsJestConfig } = require('ts-jest/presets');

module.exports = {
    ...tsJestConfig,
    preset: 'react-native',
    timers: 'fake',
    transformIgnorePatterns: [
        'node_modules/(?!react-native|@react-native|@react-native-community|realm|@react-native-firebase)',
    ],
    setupFiles: ['./jest.setup.js'],
    collectCoverage: true,
    coverageReporters: ['lcov'],
    globals: {
        window: {},
        'ts-jest': {
            babelConfig: false,
            isolatedModules: true,
            tsconfig: 'tsconfig.jest.json',
        },
    },
    transform: {
        '^.+\\.(js|jsx)$': '<rootDir>/node_modules/babel-jest',
        '\\.(ts|tsx)$': 'ts-jest',
    },
    testMatch: ['**/__tests__/**/?(*.)+(spec|test).(js|ts|tsx)'],
    testPathIgnorePatterns: ['\\.snap$', '<rootDir>/node_modules/', '<rootDir>/e2e/'],
    cacheDirectory: '.jest/cache',
    moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'ios.ts', 'ios.tsx', 'android.ts', 'android.tsx'],
    setupFilesAfterEnv: ['<rootDir>/src/__mocks__/globalMock.ts'],
    maxWorkers: 1,
    testTimeout: 20000,
};