vendor/rails/activerecord/test/cases/mixin_test.rb

   1 require "cases/helper"
   2
   3 class Mixin < ActiveRecord::Base
   4 end
   5
   6 # Let us control what Time.now returns for the TouchTest suite
   7 class Time
   8   @@forced_now_time = nil
   9   cattr_accessor :forced_now_time
  10
  11   class << self
  12     def now_with_forcing
  13       if @@forced_now_time
  14         @@forced_now_time
  15       else
  16         now_without_forcing
  17       end
  18     end
  19     alias_method_chain :now, :forcing
  20   end
  21 end
  22
  23
  24 class TouchTest < ActiveRecord::TestCase
  25   fixtures :mixins
  26
  27   def setup
  28     Time.forced_now_time = Time.now
  29   end
  30
  31   def teardown
  32     Time.forced_now_time = nil
  33   end
  34
  35   def test_time_mocking
  36     five_minutes_ago = 5.minutes.ago
  37     Time.forced_now_time = five_minutes_ago
  38     assert_equal five_minutes_ago, Time.now
  39
  40     Time.forced_now_time = nil
  41     assert_not_equal five_minutes_ago, Time.now
  42   end
  43
  44   def test_update
  45     stamped = Mixin.new
  46
  47     assert_nil stamped.updated_at
  48     assert_nil stamped.created_at
  49     stamped.save
  50     assert_equal Time.now, stamped.updated_at
  51     assert_equal Time.now, stamped.created_at
  52   end
  53
  54   def test_create
  55     obj = Mixin.create
  56     assert_equal Time.now, obj.updated_at
  57     assert_equal Time.now, obj.created_at
  58   end
  59
  60   def test_many_updates
  61     stamped = Mixin.new
  62
  63     assert_nil stamped.updated_at
  64     assert_nil stamped.created_at
  65     stamped.save
  66     assert_equal Time.now, stamped.created_at
  67     assert_equal Time.now, stamped.updated_at
  68
  69     old_updated_at = stamped.updated_at
  70
  71     Time.forced_now_time = 5.minutes.from_now
  72     stamped.lft_will_change!
  73     stamped.save
  74
  75     assert_equal Time.now, stamped.updated_at
  76     assert_equal old_updated_at, stamped.created_at
  77   end
  78
  79   def test_create_turned_off
  80     Mixin.record_timestamps = false
  81
  82     mixin = Mixin.new
  83
  84     assert_nil mixin.updated_at
  85     mixin.save
  86     assert_nil mixin.updated_at
  87
  88   # Make sure Mixin.record_timestamps gets reset, even if this test fails,
  89   # so that other tests do not fail because Mixin.record_timestamps == false
  90   rescue Exception => e
  91     raise e
  92   ensure
  93     Mixin.record_timestamps = true
  94   end
  95
  96 end