Example of a specs2 unit test, with mocks and rich context

gistfile1.scala

import org.specs2.mutable._
import org.specs2.mock._
import org.specs2.specification.Scope

class ParentElementStrategyTest extends SpecificationWithJUnit with Mockito {
  "The ParentElementStrategy" should {
    "extract a user ref" in new SimpleContext {
      val testColumn = mock[Column]
      registry.get("urn:grons.nl:user:9475877") returns testColumn
      userStrategy("user").getShardForEntity(ad, columns) must beTheSameAs(testColumn)
    }
  }

  trait SimpleContext extends Scope {
    val registry = mock[Registry]

    def userStrategy(element: String) = {
      val userStrategy = new ParentElementStrategy(element)
      userStrategy.setRegistry(registry)
      userStrategy
    }
  }
}