simple spec test for Doobie

MyServiceSpec.scala

package withhttp4s

import cats.effect.{ContextShift, IO}
import doobie.specs2.IOChecker
import org.specs2.mutable.Specification

object MyServiceSpec extends Specification with IOChecker {
  import scala.concurrent.ExecutionContext.Implicits.global
  implicit val cs: ContextShift[IO] = IO.contextShift(global)

  val sut = new MyService[IO]
  def transactor: doobie.Transactor[IO] = sut.xa

  check(sut.findCitiesByCountry("DUMMY"))
}