react-native-community-cli/jest/setupUnitTests.js

jest.mock('@react-native-community/cli-tools', () => {
  return {
    ...jest.requireActual('@react-native-community/cli-tools'),
    fetch: jest.fn(),
    logger: {
      success: jest.fn(),
      info: jest.fn(),
      warn: jest.fn(),
      error: jest.fn(),
      debug: jest.fn(),
      log: jest.fn(),
      setVerbose: jest.fn(),
      isVerbose: jest.fn(),
    },
  };
});

jest.setTimeout(20000);