# Snapshot Testing

Save output at the beginning of a test, then check again later to see if the values changed.

## What is **Snapshot Testing**?

Save a component's output the at the beginning of a test, then compare the results again later to catch differences.

Level: Journeyman · [More Unit Testing terms at this level](https://www.ask-codey.com/glossary/subjects/unit-testing/journeyman)

Updated: October 16, 2026

Source: https://www.ask-codey.com/glossary/snapshot-testing