Ruby gem - 如何通过 IRB 测试我自己的 ruby​​ gem？

Question

好的，所以我是使用IRB的新手，所以我不知道自己在做什么错。

这是我

# frozen_string_literal: true

require_relative "badwordgem/version"
require 'yaml' #this will need to use the badlist.yml file 
module Badwordgem
  class Error < StandardError; end
  
  class Base
    class << self # assign class to itself so self does not need to be used for every method

      def badlist
        @badlist ||= YAML.load_file(File.expand_path("badlist.yml", __dir__)) # This will load in the bad words from our YML file and it will assign it to the badlist variable
      end

      def sanitize(input = "sassy") # method to take in user input to check for profanity
        word = input.downcase # It will change the user input and set it to lowercase to match our bad list of words
        badlist.each do |key, value| # For every word in the badlist assign it a key(a bad word), and a value(then replace the bad work with * symbol)
          word.gsub!(/\b#{key}\b/, value) # For each word the user has inputed replace the old word(key) with the new word(value)
        end
        word # return the word whether it contains profanity or not
      end

    end
  end


end

基本上构建的宝石测试，以查看一个单词是否基于我的坏字列表。

我已经安装并构建了它，但我不知道如何在IRB中进行测试。

我已经尝试过运行badwordgem.sanitize（hello）等。但这显然是错误的，因为它给了我这个错误未定义的本地变量或方法badwordgem'for main：object'

我在IRB中键入什么命令来测试它？