Unit testing
Unit tests verify that each small part of a system, such as a single function, works as expected.
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Source content checked . English translation published 2026-10-27.
In business automation
In this guide, unit tests appear alongside quality and testing concepts. They test a small part of a system, such as a single function. This explanation is based only on the definition and adds no claims about particular tools or organizations.
Examples
These examples illustrate a possible workflow. Adapt the connections and rules to your own systems.
An example of testing a function
A single function is tested independently to verify that it returns the expected result. This is a general illustration of the definition, not a description of a particular team, product, or tool.
Relevant tools
- Playwright
- A testing tool in this guide. No claim is made here that it performs unit tests. Check the official documentation.
What to check
- A unit test checks a small part and does not replace testing the entire system.