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_nil2vtempty.rb
    path of file: ./repos/ruby-packer/ruby/test/win32ole
    
    the code of the file until where you have to start completion: # frozen_string_literal: false
# This is test script to check that WIN32OLE should convert nil to VT_EMPTY in second try.
# [ruby-talk:137054]
begin
  require 'win32ole'

    
    def test_openSchema
      con = nil
      begin
        con = WIN32OLE.new('ADODB.Connection')
        con.connectionString = "Provider=MSDASQL;Extended Properties="
        con.connectionString +="\"DRIVER={Microsoft Text Driver (*.txt; *.csv)};DBQ=#{@path}\""
        con.open
      rescue
        con = nil
      end