takietam_spec.rb

require './game'

describe "map" do
  subject { map(array, method) }
  let(:method) { Proc.new { |a| a*2 } }

  context "empty array" do
    let(:array) { [] }

    it { expect(subject).to eq([]) }
  end

  context "one element array" do
    let(:array) { [1] }

    it { expect(subject).to eq([2]) }
  end

  context "two elements array" do
    let(:array) { [1, 2] }

    it { expect(subject).to eq([2, 4]) }
  end
end