使用Mocha和Super测试进行测试:测试套件外部未捕获的错误

问题描述

使用mocha和supertest测试我的api端点时，我通过了一些测试，而有些则没有.我收到的错误消息是测试套件之外的未捕获错误:未捕获错误:监听EADDRINUSE ::: 5000

While testing my api endpoints using mocha and supertest I got some of my test passing and some are not. The error message I got was uncaught error outside test suite: Uncaught error: listen EADDRINUSE:::5000

推荐答案

即使我也遇到过同样的问题.这是因为即使在完成测试用例执行之后，supertest仍会监听端口.因此，使用--exit标志运行mocha命令.在运行npm test之前，请确保指定端口上没有正在运行的服务

Even I have faced same issue. This is because supertest keep on listening port even after completing the execution of test cases. So, run the mocha command with --exit flag. Before running npm test make sure there is no service running on the specified port

...
"scripts": {
     "start": "node server.js",
     "test": "mocha --exit"
 },
...

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