SnapshotTesting in practice

SnapshotTesting is a new iOS framework by the authors of PointFree. In this presentation, we'll walk through how to get started and the numerous ways you can use it for testing & more.

Transcript

2. Hello, I’m @MisterAlek
5. SnapshotTesting • Runs as unit tests • Captures snapshot on first run • Compares to previous snapshot on subsequent runs
6. What to snapshot?
7. Views & ViewControllers • Options for simulating specific devices (⚠) • Option for precision (<100% pixels matched)
8. Encodables
9. Anything(!)
10. Demo
11. Learnings • Super simple to get started • Extensible • Enables TDD for views • Eliminates need for fixtures • Same simulator must be used when generating snapshots as on CI • Prepare to get some initial false negatives
12. Verdict
13. Thank you!