routeDatabase = client.routeDatabase,
        )
      this.exchangeFinder =
        when {
          client.fastFallback -> FastFallbackExchangeFinder(routePlanner, client.taskRunner)
          else -> SequentialExchangeFinder(routePlanner)
        }
    }
  }

  /** Finds a new or pooled connection to carry a forthcoming request and response. */

import okhttp3.FakeRoutePlanner.ConnectState.TLS_CONNECTED
import okhttp3.internal.concurrent.TaskFaker
import org.junit.jupiter.api.AfterEach
import org.junit.jupiter.api.Test

/**
 * Unit test for [FastFallbackExchangeFinder] implementation details.
 *
 * This test uses [TaskFaker] to deterministically test racy code. Each function in this test has
 * the same structure:
 *