Rspec Binary Search

rspec_binary_search.rb

require './binary'

describe 'binary_search' do
  let(:int_ary) { (100..200).to_a }
  let(:strg_ary) { %w{ swedish\ chef miss\ piggy scooter gnu animal foo-foo }.sort }
  let(:one_elemnt_ary) { [0] }

  it 'returns correct index' do
    binary_search(135,int_ary).should eq 35
    binary_search('miss piggy',strg_ary).should eq 3
    binary_search(5,one_elemnt_ary).should eq -1
    binary_search(0,one_elemnt_ary).should eq 0
    binary_search(0,one_elemnt_ary).should eq 0
  end
end