Screenshot Testing in Jetpack Compose with Roborazzi

Screenshot testing ensures UI consistency across releases. Roborazzi is a snapshot testing tool for Jetpack Compose that captures golden images and compares against new renders.

Setup

testImplementation("io.github.takahirom:roborazzi:1.x")

Basic Screenshot Test

@get:Rule
val roborazziRule = RoborazziRule()

@Test
fun captureScreenshot() {
    composeTestRule.setContent {
        MyScreen()
    }
    roborazziRule.captureRoboImage()
}

CI/CD Integration

Compare screenshots in GitHub Actions:

- name: Compare Roborazzi
  run: ./gradlew verifyRoborazziScreenshots

Roborazzi detects pixel-level changes, preventing accidental UI regressions during refactoring.

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