vue-cli 单元测试报错 jest 报错（图文）

现象：

vue-cli创建的项目中，运行npm run unit报错，如图：

问题1： Option "mapCoverage" has been removed, as it's no longer necessary.

解决：此属性已移除，详细可以见 https://jestjs.io/docs/en/configuration 官方公布的属性，在test/unit/jest.conf.js找到并删除该属性

 找到 配置文件  并移除  该属性：

问题2：localStorage is not available for opaque origins

解决：在jest.config.js里：

 

新增红框处属性

jest : SecurityError: localStorage is not available for opaque origins · Issue #2304 · jsdom/jsdom · GitHubWhen I run a jest with my test cases. It shows the following error when I upgrade the package. In my test cases, there is no localStorage is used. How can I fix this problem? SecurityError: localStorage is not available for opaque origin...https://github.com/jsdom/jsdom/issues/2304