开玩笑的transformIgnorePatterns不起作用 [英] Jest transformIgnorePatterns not working

问题描述

我花了很长时间研究有关此问题的其他问题，并查看了Github上的其他项目，但似乎没有一个答案对我有用.

I have spent a long time looking at other questions about this and looking at other projects on Github but none of the answers seem to work for me.

我正在项目中加载第三方库，并且在运行Jest测试时收到错误消息

I am loading a third party library in my project, and when running Jest tests I get the error

export default portalCommunication;
^^^^^^

SyntaxError: Unexpected token export

> 1 | import portalCommunication from 'mathletics-portal-communication-service';

我试图以多种方式更新我的Jest配置，以使其可移植到该库中，但是我总是遇到相同的错误.

I have tried updating my Jest config in many ways to get it to transpile this library but I always get the same error.

这是我当前的jest.config.js文件:

This is my current jest.config.js file:

module.exports = {
    moduleNameMapper: {
        '\\.(css|scss)$': 'identity-obj-proxy',
        '\\.svg$': '<rootDir>/test/mocks/svg-mock.js'
    },
    setupFiles: ['./test/test-setup.js'],
    transformIgnorePatterns: [
        '<rootDir>/node_modules/(?!mathletics-portal-communication-service)'
    ]
};

我还尝试添加transform属性以针对此mathletics-portal-communication-service目录运行babel-jest.

I have also tried adding the transform property to run babel-jest against this mathletics-portal-communication-service directory.

请帮助！

推荐答案

直到我将.babelrc更改为babel.config.js，transformIgnorePatterns才对我有用，

The transformIgnorePatterns didn't work for me until I changed my .babelrc to babel.config.js, like this:

module.exports = {
    "presets": [
        "@babel/preset-env"
    ]
};

对此评论可见: https://github.com/facebook/jest/issues/6229#issuecomment-403539460

这篇关于开玩笑的transformIgnorePatterns不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！