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import kotlinx.coroutines.test.runTest
import org.junit.Before
import org.junit.Test
import org.junit.experimental.categories.Category

/**
 * Unit tests for [BillingManagerImpl] and [DebugBillingOverride].
 *
 * These tests mock [BillingClient] via a fake [BillingClientProvider].
 *
 * This class is tagged [LocalOnly] and excluded from the standard Gradle test run because
 * mocking [BillingClient] (a final Android-library class) can be unreliable in the
 * headless Robolectric environment. Run it directly from the IDE to exercise billing logic.
 */
@OptIn(ExperimentalCoroutinesApi::class)
@Category(LocalOnly::class)
class BillingManagerImplTest {
    private val testDispatcher = UnconfinedTestDispatcher()
    private val testScope = TestScope(testDispatcher)