Correct tests for sub/super lists "in the middle"
Correct tests for sub/super lists "in the middle"

cezarykosko/xelixir,parkerl/xelixir,Egogre/xelixir,tjcelaya/xelixir,elasticdog/xelixir,montague/xelixir,exercism/xelixir,victorlcampos/xelixir,wobh/xelixir,henrik/xelixir