Jest
Jest is a JavaScript testing framework used to automatically check that code works correctly.
At a glance
- Field
- Quality & Security
- Best for
- Unit testing
- Related service
- Custom Software
- First conversation
- Free, no obligation
Why businesses use Jest
Automated tests catch bugs before they reach users and let developers change code confidently, which keeps your product reliable and cheaper to maintain.
How Jest works
Developers write small tests describing expected behaviour, such as a price calculation. Jest runs them in seconds on every change and reports anything that breaks.
What it's used for
- 01Testing business logic
- 02Testing React components
- 03Testing APIs
- 04Preventing regressions
Benefits
- Fast and easy to use
- Catches bugs early
- Widely used
- Clear reports
Good to know
Every technology has trade-offs. We will always tell you when another option fits better.
- Tests need maintaining alongside code
- Complements, not replaces, end-to-end testing
How MOKRIN uses Jest
We use Jest as part of our quality & security work, mainly for unit testing. It is one of the tools we recommend when it fits your goals, budget, and existing systems, and you own everything we build with it.
- Automated testing
- Security reviews
- Error monitoring
- API testing
Quality & Security
Related technologies
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