State of Android Testing in 2022
summary
Overview of concrete takeaways and tools: a tiny demo app stonks exercises unit, integration, snapshot and end-to-end tests; prefer fakes over Mockito-style mocks; use SQLDelight JDBC for local DB unit tests; use Turbine for coroutine/Flow tests and Molecule to turn composables into flows; create Paparazzi snapshots locally no device and get visual diffs; run Espresso end‑to‑end tests on real devices via Firebase Test Lab with Flank/Fladle, capture screenshots and videos; Cash App runs thousands of unit tests and treats flaky E2E tests as worse than none.
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