Recursive parsing challenge

gistfile1.rb

  # Should return this:
  # [
  #   ["(0) Mammal", 1],
  #   ["(0) Mammal | (0) Dog", 3],
  #   ["(0) Mammal | (0) Dog | (0) Dobey", 6],
  #   ["(0) Mammal | (0) Dog | (1) Beagle", 5],
  #   ["(0) Mammal | (1) Cow", 4],
  #   ["(0) Mammal | (2) Cat", 2]
  # ]
  def test_hash
    {
      OpenStruct.new(id: 1, title: "Mammal", pos_level: 0) => {
        OpenStruct.new(id: 3, title: "Dog", pos_level: 0) => {
          OpenStruct.new(id: 6, title: "Dobey", pos_level: 0) => {},
          OpenStruct.new(id: 5, title: "Beagle", pos_level: 1) => {}
        },
        OpenStruct.new(id: 4, title: "Cow", pos_level: 1) => {},
        OpenStruct.new(id: 2, title: "Cat", pos_level: 2) => {}
      }
    }
  end