sky_skraper_spec.rb

require './sky_skraper.rb'
require 'pry'

describe SkySkraper do
  describe '#area' do
    subject { SkySkraper.area(coords) }

    context 'two coords with overlap' do
      let(:coords) { [[11, 14, 2], [12, 13, 5]] }

      it { is_expected.to eq(9) }
    end

    context 'two coords no overlap' do
      let(:coords) { [[2, 3, 2], [3, 4, 8]] }

      it { is_expected.to eq(10) }
    end

    context 'all overlap everywhere' do
      let(:coords) { [[2, 3, 2], [2, 3, 8]] }

      it { is_expected.to eq(8) }
    end

    context 'one set of coords' do
      let(:coords) { [[0, 10, 2]] }

      it { is_expected.to eq(20) }
    end

    context 'many sets of coords' do
      let(:coords) { [[0, 10, 3], [3, 5, 7], [6, 7, 8], [9, 11, 2]] }

      it { is_expected.to eq(45) }
    end
  end
end