Reactjs React Jest测试没有'；无法识别导入别名

我正在一个按钮组件中执行一个基本的React Jest测试，该测试无法识别导入

有人知道这次导入测试失败的原因吗

组件：

import ...
import ... from 'styled-components';
import ... from 'styled-tools';

import {Icon} from 'xpto';
import {Default as theme} from 'Themes';

import * as mixins from '../../../config/styles/mixins';
... 
&:hover{
    background-color: #000;
    border: 1px solid ${theme.colors.primary};
    color: ${theme.colors.primary};
    & svg:not([fill="none"]):not([fill="#000"]) {
      fill: ${theme.colors.primary};
    }
    & .nohover svg {
      fill: ${({color}) => color};
    }
...

错误：

FAIL  .../Button/index.test.js
  ● Test suite failed to run

    Cannot find module 'Themes' from 'index.js'

       5 | 
       6 | import {Icon} from 'xpto';
    >  7 | import {Default as theme} from 'Themes';
         | ^
       8 | 
       9 | import * as mixins from '../../../config/styles/mixins';
      10 | 

      at Resolver.resolveModule (node_modules/jest-resolve/build/index.js:221:17)
      at Object.<anonymous> (.../Button/index.js:7:1)

import React from 'react';
import { mount } from 'enzyme';
import Button from './index';
describe('Button', () => {  
  it('should render correctly with no props', () => {
    const component = mount(<Button/>); 
    expect(component).toMatchSnapshot();
  }); 
});

FAIL…/Button/index.test.js
● 测试套件无法运行
无法从“index.js”中找到模块“Themes”
5 | 
6 |从'xpto'导入{Icon}；
>7 |从“主题”导入{默认为主题}；
| ^
8 | 
9 |从“../../../config/styles/mixin”导入*作为mixin；
10 | 
在Resolver.resolveModule（node_modules/jest resolve/build/index.js:221:17）
反对。（…/Button/index.js:7:1）

Jest测试文件：

FAIL  .../Button/index.test.js
  ● Test suite failed to run

    Cannot find module 'Themes' from 'index.js'

       5 | 
       6 | import {Icon} from 'xpto';
    >  7 | import {Default as theme} from 'Themes';
         | ^
       8 | 
       9 | import * as mixins from '../../../config/styles/mixins';
      10 | 

      at Resolver.resolveModule (node_modules/jest-resolve/build/index.js:221:17)
      at Object.<anonymous> (.../Button/index.js:7:1)

import React from 'react';
import { mount } from 'enzyme';
import Button from './index';
describe('Button', () => {  
  it('should render correctly with no props', () => {
    const component = mount(<Button/>); 
    expect(component).toMatchSnapshot();
  }); 
});

从“React”导入React；
从“酶”导入{mount}；
从“./index”导入按钮；
描述（'按钮'，（）=>{
它（'应该在没有道具的情况下正确渲染'，（）=>{
const component=mount（）；
expect（component.toMatchSnapshot（）；
}); 
});

Jest无法解析主题文件夹中的index.js。您可以使用以下两种方法之一进行修复：

告诉Jest如何解析文件：

• 在package.json中设置

退房

在.env文件中设置节点路径

---

Jest无法解析主题文件夹中的index.js。您可以使用以下两种方法之一进行修复：

告诉Jest如何解析文件：

• 在package.json中设置

退房

在.env文件中设置节点路径