Compare long strings with RSpec and see differences in output

any_sample_spec.rb

describe 'whatever' do
  def compare_strings(query, result)
    count = (query.length / 100) + 1
    count.times do |i|
      min = (i - 1) * 100
      max = i * 100
      expect(query[min..max]).to eq result[min..max]
    end
  end
end