Test Specs2 Tag functionality

SpecsStudyTest.scala

import org.specs2.mutable._

class SpecsStudyTest extends Specification with Tags {
  "world" should {
    "have 5 characters" in {
      "world".size must_== 5
    }
    "is beutiful" in {
      "world" must_== "beutiful"
    }
  } section("world")

  "heaven" should {

    "have 6 characters" in {
      "heaven".size must_== 6
    } tag("heaven")

    "go to hell" in {
      "heaven" must_!= "hell"
    } tag ("hell")
  }

}