Add instructions for snapshot testing to local-development.md (#1282)

w3c · Dec 5, 2024 · 0fe3946 · 0fe3946
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diff --git a/docs/local-development.md b/docs/local-development.md
@@ -157,6 +157,10 @@ yarn storybook
 
 Any changes in the component will be picked up by the Storybook server.
 
+#### Snapshot Testing
+
+We use snapshot testing to detect regressions. These require upkeep since snapshots can become outdated by upstream test changes in aria-at. It is a good practice to routinely run `yarn update-snapshots` on your working branch.
+
 ### Accessibility testing
 
 #### Manual accessibilty testing