Testing in Flutter: Unit, Widget and Integration Tests, Fake Repositories and Golden Tests
The backbone of Flutter testing is unit and widget tests written with fake repositories; mocks only for "was this call made?", integration_test for critical flows and golden tests for catching visual changes on a single platform. With Bookstore's 86 tests, a checkout flow through provider and go_router, mocktail's registerFallbackValue trap and the platform differences of goldens.
15 Nov 2026
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9 min
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