---
title: github actions | Blog
description: Canonical makes open source secure, reliable and easy to use, providing
  support for Ubuntu and a portfolio of enterprise-grade technologies. Founded in
  2004, Canonical operates globally with team members in over 80 countries.
url: https://canonical.com/blog/tag/github-actions?format=md
---

# Blog posts tagged *"github actions"*

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[Julie Muzina](https://canonical.com/blog/author/jmuzina)

13 August 2024

### [Visual Testing: GitHub Actions Migration & Test Optimisation](https://canonical.com/blog/visual-testing-github-actions-migration-test-optimisation)

Design

Article

What is Visual Testing? Visual testing analyses the visual appearance of a user interface. Snapshots of pages are taken to create a “baseline”, or the current expectation of how each page should appear. Proposed changes are then compared against the baseline. Any snapshots that deviate from the baseline are flagged for review. For example ...

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