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_euc_jp.rb
    path of file: ./repos/artichoke/artichoke-backend/vendor/ruby/test/ruby/enc
    
    the code of the file until where you have to start completion: # vim: set fileencoding=euc-jp
# frozen_string_literal: false

require "test/unit"

class TestEUC_JP < Test::Unit::TestCase
  def test_mbc_case_fold
    assert_match(/(ａ)(a)\1\2/i, "ａaａA")
    assert_match(/(ａ)(a)\1\2/i, 
    
  def test_property
    assert_match(/あ{0}\p{Hiragana}{4}/, "ひらがな")
    assert_no_match(/あ{0}\p{Hiragana}{4}/, "カタカナ")
    assert_no_match(/あ{0}\p{Hiragana}{4}/, "戳机戳机")
    assert_no_match(/あ{0}\p{Katakana}{4}/, "ひらがな")
    assert_match(/あ{0}\p{Katakana}{4}/, "カタカナ")
    assert_no_match(/あ{0}\p{Katakana}{4}/, "戳机戳机")
    assert_raise(RegexpError) { Regexp.new('あ{0}\p{foobarbaz}') }
  end