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Beyond the basics of Node.js testing. Including a super-comprehensive best practices list and an example app (April 2025)
| Date | Stars |
|---|---|
| 2026-07-24 | 4379 |
| 2026-07-25 | 4379 |
| 2026-07-28 | 4379 |
| 2026-07-30 | 4379 |
| 2026-08-06 | 4379 |
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## A detailed guide to modern testing with Node.js
**1. ✅ 50+ Best Practices List -** Detailed instructions on how to write modern tests in the RIGHT way
**2. 📊 Example application -** A Complete showcase of a typical Node.js backend with performant tests setup (40 tests in 5 seconds! including database!)
**3. 🚀 Advanced topics -** Go well beyond the basics. This guide covers hot topics like testing with data(base), testing interactions with external services including contracts, testing with message queues and more
<br/><br/>
## Authors
<img width="50" height="50" src="graphics/team/yoni.jpg"/>
**Yoni Goldberg**
Speaking about this soon at the following conferences: City.js Athens 🇬🇷, React.Next Tel-Aviv 🇮🇱, Render Atlanta 🇺🇸
<img width="50" height="50" src="graphics/team/michael.jpg"/>
**Michael Salomon**
<img width="50" height="50" src="graphics/team/daniel.jpg"/>
**Daniel Gluskin**
<br/>
_Lessons Written in Blood: Hard-Won Insights from Consulting with 50 Companies_
<br/><br/>
# `Table of contents`
- [`Strategy & Workflow`](https://github.com/testjavascript/nodejs-integration-tests-best-practices#section-1-strategy-and-workflow) - Which tests should you write in 2025? (5 best practices)
- [`Database And Infrastructure Setup`](https://github.com/testjavascript/nodejs-integration-tests-best-practices#section-2-infrastructure-and-database-setup) - Optimizing your DB, MQ and other infra for testing (6 best practices)
- [`Web Server Setup`](https://github.com/testjavascript/nodejs-integration-tests-best-practices#section-3-web-server-setup) - Good practices for starting and stopping the backend API (3 best practices)
- [`The Test Anatomy`](https://github.com/testjavascript/nodejs-integration-tests-best-practices#section-4-the-test-anatomy) - The bread and butter of a component test (6 best practices)
- [`Integration`](https://github.com/testjavascript/nodejs-integration-tests-best-practices#Section-5-integrations) - Techniques for testing collaborations with 3rd party components (8 best practices)
- [`Dealing With Data`](https://github.com/testjavascript/nodejs-integration-tests-best-practices#section-6-dealing-with-data) - Patterns and practices for testing the application data and database (8 best practices)
- [`Message Queue`](https://github.com/testjavascript/nodejs-integration-tests-best-practices#section-7-message-queues) - Correctly testing flows that start or end at a queue (8 best practices)
- [`Mocking`](https://github.com/testjavascript/nodejs-integration-tests-best-practices#section-8-mocking)(6 best practices)
<br/><br/>
### Athens workshop + Online course
**- 🧑🏫 Online course:** Learn all of these patterns & practices in a [comprehensive online course - On special sale until April 30th](https://testjavascript.com/)
**- 🇬🇷 Athens workshop:** [Attend my workshop in City.js Athens](https://greece.cityjsconf.org/) + Bonus: Get royal access to my online course
<br/><br/>
### Example Application
- [`Our Showcase`](https://github.com/testjavascript/nodejs-integration-tests-best-practices#-example-application) - An example Node.js component that embodies selected list of important best practices
### Other Recipes
- [`More Examples And Platforms`](https://github.com/testjavascript/nodejs-integration-tests-best-practices#-recipes) - A list of more examples that cover more platforms and topics
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# ✅ Best Practices
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## **Section 1: Strategy and Workflow**
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### ⚪️ 1. Always START with integration/component tests
🏷 **Tags:** `#strategic`
:white_check_mark: **Do:** No matter when testing starts, the first tests to write should be component tests. But what exactly are component/integration tests? They focus on testing an entire component (e.g., a microservice) as-is, through its API, with all layers included—database and all—while faking anything extraExcerpt of 113,348 characters
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