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: toregexp_test.rb
    path of file: ./repos/tenderjit/test/instructions
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require "helper"

class TenderJIT
  class ToregexpTest <
    
    def test_toregexp_single_expression
      meth = method(:regexp_single_expression)

      assert_has_insn meth, insn: :toregexp

      jit.compile(meth)
      jit.enable!
      v = meth.call
      jit.disable!

      assert_equal 1, jit.compiled_methods
      assert_equal 0, jit.exits
      assert_equal (/foo/), v
    end