Question 1

How to set up Playbook for automated snapshot testing in CI/CD?

Accepted Answer

Use PlaybookSnapshot in XCTest cases to generate snapshots during unit tests, then integrate with CI tools by setting environment variables for snapshot directories and uploading to services like Percy. The README shows an example with a directory path from process info.

Question 2

Can Playbook be used with UIKit components only, or is it SwiftUI-specific?

Accepted Answer

Playbook supports both SwiftUI and UIKit, as demonstrated in the README with examples like UIView for UIKit and SwiftUI views. You can add scenarios for any UI component regardless of the framework.

Question 3

What's the difference between Playbook and Xcode's SwiftUI Preview?

Accepted Answer

Playbook provides a more structured, isolated environment with snapshot testing and living styleguide capabilities, while SwiftUI Preview is integrated into Xcode for quick design iteration but lacks automated testing features. Playbook is better for teams needing visual regression and component documentation.

Question 4

How does Playbook handle components that require dynamic data or network calls?

Accepted Answer

Playbook allows you to use stubbed data or mock environments within scenarios, as shown with UserData.stub in the README. You can prepare data contexts to simulate different states without application-specific dependencies.

Question 5

Is Playbook suitable for large teams with hundreds of components?

Accepted Answer

Yes, Playbook supports organizing scenarios with ScenarioProvider for modularity, and UI options like PlaybookCatalog help manage many components efficiently. However, snapshot generation speed might impact performance with extensive component libraries.

Question 6

What are the main alternatives to Playbook for iOS component testing?

Accepted Answer

Alternatives include using XCTest with custom snapshot libraries like SnapshotTesting by Point-Free, or other visual testing tools. Playbook stands out with its Storybook-inspired workflow, living styleguide, and built-in support for both SwiftUI and UIKit.

Playbook

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