string_benchmark.rb

require 'benchmark'

# Mock classes to simulate the environment
class Licensor
  attr_accessor :name, :people_id

  def initialize(name, people_id = nil)
    @name = name
    @people_id = people_id
  end

  def people_id
    @people_id
  end

  def people_id_present?
    !@people_id.nil?
  end
end

class Statement
  attr_accessor :licensor, :period_end_date

  def initialize(licensor, period_end_date)
    @licensor = licensor
    @period_end_date = period_end_date
  end
end

# Benchmarking the three approaches
licensor = Licensor.new('Easton', '12345')
statement = Statement.new(licensor, '2025-09-25')

n = 9_000_000 # Number of iterations

Benchmark.bm(10) do |x|
  x.report('Array + join') do
    n.times do
      result = []
      result << licensor.name
      result << licensor.people_id if licensor.people_id
      result << statement.period_end_date
      result.join('_')
    end
  end

  x.report('String concat') do
    n.times do
      result = licensor.name
      result += "_#{licensor.people_id}" if licensor.people_id
      result += "_#{statement.period_end_date}"
    end
  end

  x.report('Unique String') do
    n.times do
      result = licensor.name
      result += licensor.people_id if licensor.people_id
      result += statement.period_end_date
    end
  end
end