导出Jest和ES6不采用的默认默认else路径 [英] Exports defaults else path not taken with Jest and ES6

问题描述

我在通过覆盖率100％的测试时遇到了问题.伊斯坦布尔说exports defaults Component其他路径未采用.

I'm having issues to pass my tests with 100% coverage. Istanbul say that exports defaults Component else path not taken.

因此，我在生成的伊斯坦布尔html文件中看到我的测试并不完全是100％.通常在语句和分支"选项卡中.

Because of that, I see in my generated html of istanbul that my tests are not completely at 100%. Mostly in the Statements and Branches tab.

我正在使用:

• 反应:15.4.0
• 笑话:17.0.2
• Webpack:1.12.11

有什么主意吗?

推荐答案

问题出在开玩笑的配置中，我们使用预处理器来解决某些导入问题:

The problem was in the jest configuration, we were using a preprocessor in order to resolve some imports:

在json包中，我们有以下内容:

In the package json we had this:

"transform": {
  "^.+\\.js$": "<rootDir>/cfg/preprocessor.js"
},

此文件包含以下内容:

const babelJest = require('babel-jest');
require('babel-register');
const webpackAlias = require('jest-webpack-alias');

module.exports = {
  process: function (src, filename) {
    if (filename.indexOf('node_modules') === -1) {
      src = babelJest.process(src, filename);
      src = webpackAlias.process(src, filename);
    }
    return src;
  }
};

我们更新到Jest v20，并且还使用了来自Jest的模块解析器，在我们的package.json中我们添加了:

We updated to Jest v20 and also use the module resolver from Jest, in our package.json we added:

"moduleDirectories": [
  "node_modules",
  "src"
],

，并从package.json和preprocessor.js文件中删除了transform配置.

and removed the transform config from the package.json and the preprocessor.js file.

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