SDET at Fincent·
Needs advice
on
ExpressJSExpressJSJavaScriptJavaScript
and
Node.jsNode.js

Needs advice on code coverage tool in Node.js/ExpressJS with External API Testing Framework

Hello community,

I have a web application with the backend developed using Node.js and Express.js. The backend server is in one directory, and I have a separate API testing framework, made using SuperTest, Mocha, and Chai, in another directory. The testing framework pings the API, retrieves responses, and performs validations.

I'm currently looking for a code coverage tool that can accurately measure the code coverage of my backend code when triggered by the API testing framework. I've tried using Istanbul and NYC with instrumented code, but the results are not as expected.

Could you please recommend a reliable code coverage tool or suggest an approach to effectively measure the code coverage of my Node.js/Express.js backend code in this setup?

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90 upvotes·143.8K views
Replies (6)
Recommends
on
JavaScript
Node.js

Hello! For your Node.js/Express.js project, it is recommended to use NYC as the code coverage tool. Make sure you configure NYC in package.json, for example:

"nyc": { "reporter": ["text", "html"], "include": ["backend//*.js"], "exclude": ["test//*.js"], "all": true } Then run the test through the command:

nyc mocha path/to/your/test/*/.js Make sure your test cases cover all API endpoints so that the coverage can be accurately reflected.

In addition, for node.js projects, I have a very useful suggestion, that is, before the project starts, you can use a development environment management tool like servbay to perform environment deployment, environment testing, etc., which greatly improves our efficiency

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51 upvotes·20 comments·10.6K views
Harun sorder
Harun sorder
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Alpha Star
Alpha Star
·
November 18th 2024 at 11:14AM

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here my website - https://www.gatewayabroadeducations.com/

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hothm uic
hothm uic
·
January 9th 2025 at 7:08AM

Yes, you can either migrate your React.js website to WordPress for easier management or create a subdomain (e.g., blog.yourdomain.com) and use WordPress for specific sections like a blog or store, while keeping your main site intact. My friend’s website, https://sheetzmenu.info/, was successfully migrated from React.js to WordPress.

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Magic Brawl
Magic Brawl
·
July 7th 2025 at 9:16PM

This is really trickly, i also created my website on React. If your niche is informative then it's ok, but if your need to update the time to time then better to go for WordPress/HTML.

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Major Vehicle Exchange
Major Vehicle Exchange
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October 24th 2024 at 3:05PM

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use SonarCube, that's what i think can help u with code coverage

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37 upvotes·7 comments·10.7K views
Major Vehicle Exchange
Major Vehicle Exchange
·
December 18th 2024 at 1:25PM

Major Vehicle Exchange

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Pkbook games
Pkbook games
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Anurag Maurya
Anurag Maurya
·
August 2nd 2024 at 12:54PM

Thanks,

Sure, I will check this.

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podextra
podextra
·
December 9th 2024 at 9:04AM

thanks

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Lopiuy Rewas
Lopiuy Rewas
·
May 19th 2025 at 6:39AM

It gives clear metrics and helps catch issues early in the pipeline. By the way, I’ve also been exploring different tech tools while working on a project related to [Historical Hijri dates](https://calculatezakat.net/ ). It’s surprising how often we overlook historical calendars in modern applications, especially when dealing with internationalization

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Anurag Maurya

SDET at Fincent