Spock and Vertx3

HelloSpec.groovy

import io.vertx.core.Vertx
import spock.lang.Shared
import spock.lang.Specification
import spock.util.concurrent.BlockingVariable

class HelloSpockSpec extends Specification {

  @Shared
  def Vertx vertx = Vertx.vertx()

  def "test async vert.x"() {
    setup:
    def result = new BlockingVariable()

    when:
    vertx.setTimer(1l) { timerId ->
      result.set('OK')
    }
    println "wait 1s"

    then:
    result.get() == 'OK'
  }
}