swift-snapshot-testing

Snapshot testing for Swift UI components captures view hierarchies and image diffs to detect unintended UI changes automatically. This skill provides templates and guidelines to verify views, images, and custom formats using XCTest or Swift Testing.

Snapshot testing is available for both XCTest and Swift Testing contexts. You can verify view hierarchies, image diffs, and custom snapshot strategies across both testing frameworks within your local and CI environments.

In a CI workflow, snapshot testing automatically captures and compares view snapshots against reference recordings to detect unintended UI changes. This automates image diff verification and prevents visual regressions across builds.

You must install and configure the SnapshotTesting library as a required dependency. Optional DocC tooling and a conversion workflow using swift_docc_to_skill.py are also available for integrating documentation into the skill format.

Migration-friendly guidelines and templates are provided for integrating SnapshotTesting into existing test suites. These resources assist in transitioning your current Swift tests to capture and compare view snapshots effectively.

Yes, the skill targets projects that verify custom snapshot strategies alongside standard Swift UI views and images. It supports automated verification across various formats within XCTest and Swift Testing contexts.