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Petri Lahdelma
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Snapshot testing
Glossary
Snapshot testing
Automated visual diffs of UI states.
Why it matters
Business and delivery impact.
Catches unintended changes early.
How to measure
Proof you can track.
Diff failure rate and false positives.
Example
What it looks like in practice.
Chromatic tests for button states.
Related
Keep the context connected.
Visual regression
Component telemetry