' import 'promise-polyfill/src/polyfill' 'has syntaxerror when i excute 'npm run test'

[jinmawang]

`/Users/zhangjinma/Work/discovery/node_modules/promise-polyfill/src/polyfill.js:1
({"Object.":function(module,exports,require,__dirname,__filename,global,jest){import Promise from './index';
^^^^^^

SyntaxError: Cannot use import statement outside a module

  1 | import axios from 'axios';
  2 | import { INTERFACE_BASE_URL } from '../config/constants';
> 3 | import 'promise-polyfill/src/polyfill';
    | ^

`

[jinmawang]

this is a react app created by CRA,Jest and Jest-Babel is enabled by default

[taylorhakes]

The polyfill needs to be compiled. If you want the compiled version use import 'promise-polyfill/dist/polyfill'