Critical path first
Define a smoke set that runs on every merge; expand to full regression on release branches or nightly jobs.
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Android regression testing
Regression runs prove existing behaviour still works after every change. On Android, pair automated suites with structured testing workflows, device simulation, and QA testing so results stay comparable across builds.
What to cover
- Core user journeys: auth, checkout, sync, and anything revenue-critical.
- Flows touched by the latest change plus adjacent areas at risk of side effects.
- Permission, background work, and integration points that often regress silently.
Building the suite
Stable UI tests
Automate high-value paths with explicit waits and isolated data; track flaky tests and fix or quarantine them quickly.
Representative matrix
Cover minimum and target SDK plus a budget and a flagship device class—see compatibility testing.
How Device Changer fits
Fixed device profiles and reproducible environments reduce “passes on my phone” noise so regression failures map cleanly to a change in the app or the test.
Interface screenshots
FAQ
How often should regression run?
At minimum on every release candidate; ideally critical path on each mainline build and a broader suite nightly.
Emulator or real device?
Use emulators and simulation for speed; validate regressions on real hardware before store submission.