iOS Snapshot Test Case
A snapshot testing library for iOS that captures and compares UI component images to detect visual regressions.
What is iOS Snapshot Test Case?
iOSSnapshotTestCase is a snapshot testing library for iOS applications that captures images of UI components and compares them to reference images to detect visual changes. It solves the problem of testing complex UI edge cases—like text overflow, image sizing, or highlighted states—by providing a visual diff that shows exactly what changed and how it appears to users. Originally developed by Facebook as FBSnapshotTestCase, it is now maintained by Uber.
iOS developers and QA engineers who need to ensure visual consistency and catch UI regressions in their apps, particularly those working on projects with complex or frequently changing user interfaces.
Developers choose iOSSnapshotTestCase because it simplifies UI testing by replacing hard-to-understand rectangle asserts with intuitive visual diffs, integrates seamlessly with XCTest, and supports advanced UI features like visual effects and size classes. Its automated reference image management and descriptive failure outputs save time in debugging visual issues.
Overview
Snapshot view unit tests for iOS
Use Cases
Best For
- Testing UI components for visual regressions after code changes
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