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Scalable UI testing solutions Google I/O 2 02 3 LT

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Summary Espresso Device API Firebase Test Lab 
 with Gradle Managed Devices Compose Screenshot Test 2 https://www.youtube.com/watch?v=L 6 CSaH 0 kDnI

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Espresso Device API 3

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Foldable device 4

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Con fi guration Change Con fi guration Change Android Emulator 33 . 1 . 10 Android Gradle Plugin 8 . 2 . 0 -alpha 04 https://developer.android.com/studio/preview/features#espresso- device-api androidx.test.espresso:espresso-device 5

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Firebase Test Lab 
 with Gradle Managed Devices 7

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8 Gradle Managed Devices Gradle AndroidTest 
 AVD /CI AGP 8 . 2 . 0 -alpha 01 
 Firebase Test Lab

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9 Firebase

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10 $ gcloud auth login $ gcloud config set project PROJECT_ID $ ./gradlew assembleDebugAndroidTest $ gcloud firebase test android run \ --type instrumentation \ --app app-debug-unaligned.apk \ --test app-debug-test-unaligned.apk \ --device model=Nexus6,version=21,locale=en,orientation=portrait \ --device model=Nexus7,version=19,locale=fr,orientation=landscape --client-details matrixLabel="Example matrix label"

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Compose Screenshot Test 11

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Screenshot test UI 12

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13 Preview @Preview @Composable fun CardPreview() { //… }

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Host-side screenshot test @Preview Composable AndroidTest 
 Android Gradle Plugin 8 . 2 . 0 14