Testing Compose
summary
Compose is built with testing first: more than two thirds of Compose code lives in tests, and the same APIs are available to app authors. Tests use a compose test rule (createAndroidComposeRule or createComposeRule), semantics matchers (and useUnmergedTree), and a clock test rule that can pause clock and advance time deterministically. Screenshot tests capture a single composable and compare goldens reliably (animations produce identical frames), semantics can merge children with mergeAllDescendants true, and Compose interoperates with Espresso without extra synchronization.
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chapters (8)
- 0:00Introduction to Compose testing
- 1:55Semantics tree in Compose
- 4:47Compose test setup and API
- 9:25Test actions and assertions
- 9:46Testing isolated components
- 12:57Simulating state changes
- 15:05Hybrid view and Compose tests
- 16:09Q&A session
