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: base_test.rb
    path of file: ./repos/view_components/test/lib/erblint/argument_mappers
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require "lib/erblint_test_case"

class ArgumentMappersBaseTest < ErblintTestCase
  de
    
  def test_returns_known_system_arguments
    @file = '<div class="mr-1 p-3 d-none d-md-block anim-fade-in"></div>'
    args = ERBLint::Linters::ArgumentMappers::Base.new(tags.first).to_args

    assert_equal({
                   mr: 1,
                   p: 3,
                   display: [:none, nil, :block],
                   animation: ":fade_in"
                 }, args)
  end