How to Test Your Compose UI

on YouTube ↗33m

" summary

Practical guide to testing Jetpack Compose UIs using the Compose testing library and a small Hydration Tracker sample project: shows using createAndroidComposeRule or createComposeRule, calling setContent, inspecting the semantics tree with onRoot and print, finding nodes via onNodeWithText / tag / contentDescription (and useUnmergedTree), setting Semantics modifier and merge descendants to combine children, performClick and performTextInput behavior, hybrid Compose+View tests via Espresso, and a known Compose 1.2.0‑RC3 bug that swallows clicks on hosted Android views (workaround exists but can be flaky).

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" chapters (12)

1. 0:00Introduction to Compose UI testing
2. 2:34Setting up Compose testing
3. 7:14Understanding the semantics tree
4. 12:06Modifying semantics with modifiers
5. 16:25Finding and interacting with nodes
6. 19:39Performing actions on UI elements
7. 21:48Testing small UI units
8. 23:36Testing component behavior
9. 25:01Hybrid UI testing scenarios
10. 29:47Testing Android Views in Compose
11. 31:31Advanced testing topics
12. 32:13Resources and closing

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