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: abstract_model_test.rb
    path of file: ./repos/mushroom-observer/test/models
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require("test_helper")

class AbstractMode
    
  def test_save_updated_at
    obs = observations(:detailed_unknown_obs)
    updated_at = obs.updated_at
    Observation.record_timestamps = false
    obs.last_view = Time.now.getlocal
    obs.save
    Observation.record_timestamps = true
    obs.reload
    assert_equal(updated_at, obs.updated_at)
  end