---
title: "The boundaries of a unit test"
description: "How can you define the behavior covered by one unit test?"
status: "coming-soon"
language: "en"
canonical: "https://bulnik.dev/en/articles/topics/T47.01/"
topicId: "T47.01"
---

> Coming soon — this article is being prepared. Below are its question, intended outcome, and place in the story.

## The question

How can you define the behavior covered by one unit test?

## What we will work through

Define the behavior covered by one unit test.

## Before you begin

Previously covered: Domains and module boundaries.

- [Domains and module boundaries](/en/articles/topics/T01.04/)