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Date: 2026-03-11

Status: Implemented

Each KMP module independently declared scattered test dependencies (T383838junit, T383838mockk, T383838coroutines-test, T383838turbine), leading to version drift and duplicated test doubles across modules.

Created T383838core:testing as a lightweight shared module for test doubles, fakes, and utilities. It depends only on T383838core:model and T383838core:repository (no heavy deps like T383838core:database). All modules declare T383838implementation(projects.core.testing) in T383838commonTest to get a unified test dependency set.

• Single source for test fakes (T383838FakeRadioController, T383838FakeNodeRepository, T383838TestDataFactory)

• Clean dependency graph — T383838core:testing is lightweight; heavy modules depend on it in test scope, not vice versa

• No production leakage — only declared in T383838commonTest, never in release artifacts

• Reduced maintenance — updating test libraries touches one T383838build.gradle.kts

See core/testing/README.md for usage guide and API reference.