Stubbing multiple parameters in Spock Specification

MySpec.groovy

import spock.lang.*

class MySpec extends Specification {

  def "should return 2 for method parameter equal to 2"() {
    given:
        List list = Stub()
        list.get(0) >> 0
        list.get(1) >> { throw new IllegalArgumentException() }
        list.get(2) >> 2
    expect:
        list.get(2) == 2
  }
}