test-runner-jest.config.js

const {getJestConfig} = require('@storybook/test-runner');

// The default Jest configuration comes from @storybook/test-runner
const testRunnerConfig = getJestConfig();

/**
 * @type {import('@jest/types').Config.InitialOptions}
 */
module.exports = {
  ...testRunnerConfig,
  /** Add your own overrides below, and make sure
   *  to merge testRunnerConfig properties with your own
   * @see https://jestjs.io/docs/configuration
   */
  reporters: process.env.TEAMCITY_VERSION ? ['jest-teamcity'] : undefined,
};