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: psl_test.rb
    path of file: ./repos/publicsuffix-ruby/test
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require "test_helper"
require "public_suffix"

# This test runs against the current PSL file and ensures
# the definitions satisfies the test suite.
class PslTest < Minitest::Test


    
  def self.tests
    File.readlines(File.join(ROOT, "test/tests.txt")).map do |line|
      line = line.strip
      next if line.empty?
      next if line.start_with?("//")

      input, output = line.split(", ")

      # handle the case of eval("null"), it must be eval("nil")
      input  = "nil" if input  == "null"
      output = "nil" if output == "null"

      input  = eval(input)
      output = eval(output)
      [input, output]
    end
  end