Fix for "The play Cache is not alive (STATUS_SHUTDOWN)"

Fixed.scala

package ReactiveAPI

import org.specs2.mutable.Specification
import play.api.mvc.{Action, Results}
import play.api.test.{WithApplication, FakeApplication}
import play.api.cache.Cache

class ExampleSpec extends Specification with Results {
  val appWithRoutes = () => FakeApplication(withRoutes = {
    case ("GET", "/") => Action{ Ok }
  })

  "Example" should {
    "do something" in new WithApplication(app = appWithRoutes()) {
      // Access Cache here
    }

    "do something" in new WithApplication(app = appWithRoutes()) {
      // Access Cache here
    }
  }
}

Do you know what should I do if I use FlatSpec of scalatest and activateTest rather than WithApplication?