Write your first Compose UI test
summary
Shows how to write a UI test for a Jetpack Compose calculator that actually clicks buttons and asserts behavior: sets content with a test rule, uses onNodeWithText then switches to onNode(hasText(...).and(hasClick())) to disambiguate two “3” nodes, verifies the formula text and an error message after entering an invalid input, uses AndroidComposeRule with ComponentActivity to access string resources, and explains why color assertions require screenshot tests because the semantics tree omits visual color.
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chapters (8)
- 0:00Introduction to compose tests
- 0:34Setting up the test class
- 1:39Finding and clicking nodes
- 2:12Creating specific matchers
- 3:35Asserting element existence
- 3:58Testing error handling
- 4:57Using string resources
- 5:26Understanding semantic nodes
