You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: test_faker_construction.rb
    path of file: ./repos/faker/test/faker/default
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require_relative '../../test_helper'

class TestFakerConstruction < Test::Unit::TestCase
  def setup
    Faker::Config.locale = nil
  end

  def test_material
    assert_match(/\w+/, Faker::Construction.material)
  end

  def test_heavy_equipment
    assert_match(/\w+/, Faker::Construction.heavy_equipment)
    
  def test_locales
    [nil, 'en'].each do |locale_name|
      Faker::Config.locale = locale_name

      assert Faker::Construction.material.is_a? String
      assert Faker::Construction.subcontract_category.is_a? String
      assert Faker::Construction.standard_cost_code.is_a? String
      assert Faker::Construction.trade.is_a? String
      assert Faker::Construction.role.is_a? String
      assert Faker::Construction.heavy_equipment.is_a? String
    end
  end