# File test/test_connection.rb, line 418
  def test_duplicate_subscription
    @conn.disconnect # not reliable
    @conn = Stomp::Connection.open(user, passcode, host, port, true) # reliable
    dest = make_destination
    conn_subscribe dest
    #
    assert_raise Stomp::Error::DuplicateSubscription do
      conn_subscribe dest
    end
    checkEmsg(@conn)
  end