Explain integration tests and isolate Room DAO tests
Tests integration vs unit testing and Room isolation. Outline: verify real DAO-to-DB interaction with Room.inMemoryDatabaseBuilder; reset state by closing and recreating the DB in @After. Red flag: mocking the DAO or using an on-disk database.
Tests your understanding of integration versus unit tests and hermetic Room state. Outline: define integration tests as verifying real component behavior across layers instead of mocked boundaries; describe creating an in-memory Room database with Room.inMemoryDatabaseBuilder on an AndroidJUnit4 or Robolectric runner; manage isolation by closing and recreating the database in @After or wrapping each test in a rollback transaction. Red flag: mocking the DAO, using a persistent on-disk file, or ignoring cleanup and letting data leak between runs.
Read the original → developer.android.com
- #android
- #room
- #testing
- #integration-tests
- #database
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