Class DirtyTest < ActiveModel::TestCase

# File activerecord/test/cases/dirty_test.rb, line 30
def setup
  Person.create :first_name => 'foo'
end

# File activerecord/test/cases/dirty_test.rb, line 153
def test_aliased_attribute_changes
  # the actual attribute here is name, title is an
  # alias setup via alias_attribute
  parrot = Parrot.new
  assert !parrot.title_changed?
  assert_nil parrot.title_change

  parrot.name = 'Sam'
  assert parrot.title_changed?
  assert_nil parrot.title_was
  assert_equal parrot.name_change, parrot.title_change
end

# File activerecord/test/cases/dirty_test.rb, line 305
def test_association_assignment_changes_foreign_key
  pirate = Pirate.create!(:catchphrase => 'jarl')
  pirate.parrot = Parrot.create!(:name => 'Lorre')
  assert pirate.changed?
  assert_equal %w(parrot_id), pirate.changed
end

# File activerecord/test/cases/dirty_test.rb, line 34
def test_attribute_changes
  # New record - no changes.
  pirate = Pirate.new
  assert !pirate.catchphrase_changed?
  assert_nil pirate.catchphrase_change

  # Change catchphrase.
  pirate.catchphrase = 'arrr'
  assert pirate.catchphrase_changed?
  assert_nil pirate.catchphrase_was
  assert_equal [nil, 'arrr'], pirate.catchphrase_change

  # Saved - no changes.
  pirate.save!
  assert !pirate.catchphrase_changed?
  assert_nil pirate.catchphrase_change

  # Same value - no changes.
  pirate.catchphrase = 'arrr'
  assert !pirate.catchphrase_changed?
  assert_nil pirate.catchphrase_change
end

# File activerecord/test/cases/dirty_test.rb, line 312
def test_attribute_should_be_compared_with_type_cast
  topic = Topic.new
  assert topic.approved?
  assert !topic.approved_changed?

  # Coming from web form.
  params = {:topic => {:approved => 1}}
  # In the controller.
  topic.attributes = params[:topic]
  assert topic.approved?
  assert !topic.approved_changed?
end

# File activerecord/test/cases/dirty_test.rb, line 290
def test_attribute_will_change!
  pirate = Pirate.create!(:catchphrase => 'arr')

  pirate.catchphrase << ' matey'
  assert !pirate.catchphrase_changed?

  assert pirate.catchphrase_will_change!
  assert pirate.catchphrase_changed?
  assert_equal ['arr matey', 'arr matey'], pirate.catchphrase_change

  pirate.catchphrase << '!'
  assert pirate.catchphrase_changed?
  assert_equal ['arr matey', 'arr matey!'], pirate.catchphrase_change
end

# File activerecord/test/cases/dirty_test.rb, line 361
def test_changed_attributes_should_be_preserved_if_save_failure
  pirate = Pirate.new
  pirate.parrot_id = 1
  assert !pirate.save
  check_pirate_after_save_failure(pirate)

  pirate = Pirate.new
  pirate.parrot_id = 1
  assert_raise(ActiveRecord::RecordInvalid) { pirate.save! }
  check_pirate_after_save_failure(pirate)
end

# File activerecord/test/cases/dirty_test.rb, line 554
def test_datetime_attribute_can_be_updated_with_fractional_seconds
  in_time_zone 'Paris' do
    target = Class.new(ActiveRecord::Base)
    target.table_name = 'topics'

    written_on = Time.utc(2012, 12, 1, 12, 0, 0).in_time_zone('Paris')

    topic = target.create(:written_on => written_on)
    topic.written_on += 0.3

    assert topic.written_on_changed?, 'Fractional second update not detected'
  end
end

# File activerecord/test/cases/dirty_test.rb, line 381
def test_dup_objects_should_not_copy_dirty_flag_from_creator
  pirate = Pirate.create!(:catchphrase => "shiver me timbers")
  pirate_dup = pirate.dup
  pirate_dup.reset_catchphrase!
  pirate.catchphrase = "I love Rum"
  assert pirate.catchphrase_changed?
  assert !pirate_dup.catchphrase_changed?
end

# File activerecord/test/cases/dirty_test.rb, line 542
def test_field_named_field
  ActiveRecord::Base.connection.create_table :testings do |t|
    t.string :field
  end
  assert_nothing_raised do
    Testings.new.attributes
  end
ensure
  ActiveRecord::Base.connection.drop_table :testings rescue nil
end

# File activerecord/test/cases/dirty_test.rb, line 232
def test_integer_zero_to_integer_zero_not_marked_as_changed
  pirate = Pirate.new
  pirate.parrot_id = 0
  pirate.catchphrase = 'arrr'
  assert pirate.save!

  assert !pirate.changed?

  pirate.parrot_id = 0
  assert !pirate.changed?
end

# File activerecord/test/cases/dirty_test.rb, line 220
def test_integer_zero_to_string_zero_not_marked_as_changed
  pirate = Pirate.new
  pirate.parrot_id = 0
  pirate.catchphrase = 'arrr'
  assert pirate.save!

  assert !pirate.changed?

  pirate.parrot_id = '0'
  assert !pirate.changed?
end

# File activerecord/test/cases/dirty_test.rb, line 206
def test_nullable_datetime_not_marked_as_changed_if_new_value_is_blank
  in_time_zone 'Edinburgh' do
    target = Class.new(ActiveRecord::Base)
    target.table_name = 'topics'

    topic = target.create
    assert_equal nil, topic.written_on

    topic.written_on = ""
    assert_equal nil, topic.written_on
    assert !topic.written_on_changed?
  end
end

# File activerecord/test/cases/dirty_test.rb, line 186
def test_nullable_decimal_not_marked_as_changed_if_new_value_is_blank
  numeric_data = NumericData.new

  ["", nil].each do |value|
    numeric_data.bank_balance = value
    assert !numeric_data.bank_balance_changed?
    assert_nil numeric_data.bank_balance_change
  end
end

# File activerecord/test/cases/dirty_test.rb, line 196
def test_nullable_float_not_marked_as_changed_if_new_value_is_blank
  numeric_data = NumericData.new

  ["", nil].each do |value|
    numeric_data.temperature = value
    assert !numeric_data.temperature_changed?
    assert_nil numeric_data.temperature_change
  end
end

# File activerecord/test/cases/dirty_test.rb, line 176
def test_nullable_number_not_marked_as_changed_if_new_value_is_blank
  pirate = Pirate.new

  ["", nil].each do |value|
    pirate.parrot_id = value
    assert !pirate.parrot_id_changed?
    assert_nil pirate.parrot_id_change
  end
end

# File activerecord/test/cases/dirty_test.rb, line 272
def test_object_should_be_changed_if_any_attribute_is_changed
  pirate = Pirate.new
  assert !pirate.changed?
  assert_equal [], pirate.changed
  assert_equal Hash.new, pirate.changes

  pirate.catchphrase = 'arrr'
  assert pirate.changed?
  assert_nil pirate.catchphrase_was
  assert_equal %w(catchphrase), pirate.changed
  assert_equal({'catchphrase' => [nil, 'arrr']}, pirate.changes)

  pirate.save
  assert !pirate.changed?
  assert_equal [], pirate.changed
  assert_equal Hash.new, pirate.changes
end

# File activerecord/test/cases/dirty_test.rb, line 325
def test_partial_update
  pirate = Pirate.new(:catchphrase => 'foo')
  old_updated_on = 1.hour.ago.beginning_of_day

  with_partial_updates Pirate, false do
    assert_queries(2) { 2.times { pirate.save! } }
    Pirate.update_all({ :updated_on => old_updated_on }, :id => pirate.id)
  end

  with_partial_updates Pirate, true do
    assert_queries(0) { 2.times { pirate.save! } }
    assert_equal old_updated_on, pirate.reload.updated_on

    assert_queries(1) { pirate.catchphrase = 'bar'; pirate.save! }
    assert_not_equal old_updated_on, pirate.reload.updated_on
  end
end

# File activerecord/test/cases/dirty_test.rb, line 343
def test_partial_update_with_optimistic_locking
  person = Person.new(:first_name => 'foo')
  old_lock_version = 1

  with_partial_updates Person, false do
    assert_queries(2) { 2.times { person.save! } }
    Person.update_all({ :first_name => 'baz' }, :id => person.id)
  end

  with_partial_updates Person, true do
    assert_queries(0) { 2.times { person.save! } }
    assert_equal old_lock_version, person.reload.lock_version

    assert_queries(1) { person.first_name = 'bar'; person.save! }
    assert_not_equal old_lock_version, person.reload.lock_version
  end
end

# File activerecord/test/cases/dirty_test.rb, line 462
def test_previous_changes
  # original values should be in previous_changes
  pirate = Pirate.new

  assert_equal Hash.new, pirate.previous_changes
  pirate.catchphrase = "arrr"
  pirate.save!

  assert_equal 4, pirate.previous_changes.size
  assert_equal [nil, "arrr"], pirate.previous_changes['catchphrase']
  assert_equal [nil, pirate.id], pirate.previous_changes['id']
  assert_nil pirate.previous_changes['updated_on'][0]
  assert_not_nil pirate.previous_changes['updated_on'][1]
  assert_nil pirate.previous_changes['created_on'][0]
  assert_not_nil pirate.previous_changes['created_on'][1]
  assert !pirate.previous_changes.key?('parrot_id')

  # original values should be in previous_changes
  pirate = Pirate.new

  assert_equal Hash.new, pirate.previous_changes
  pirate.catchphrase = "arrr"
  pirate.save

  assert_equal 4, pirate.previous_changes.size
  assert_equal [nil, "arrr"], pirate.previous_changes['catchphrase']
  assert_equal [nil, pirate.id], pirate.previous_changes['id']
  assert pirate.previous_changes.include?('updated_on')
  assert pirate.previous_changes.include?('created_on')
  assert !pirate.previous_changes.key?('parrot_id')

  pirate.catchphrase = "Yar!!"
  pirate.reload
  assert_equal Hash.new, pirate.previous_changes

  pirate = Pirate.find_by_catchphrase("arrr")
  pirate.catchphrase = "Me Maties!"
  pirate.save!

  assert_equal 2, pirate.previous_changes.size
  assert_equal ["arrr", "Me Maties!"], pirate.previous_changes['catchphrase']
  assert_not_nil pirate.previous_changes['updated_on'][0]
  assert_not_nil pirate.previous_changes['updated_on'][1]
  assert !pirate.previous_changes.key?('parrot_id')
  assert !pirate.previous_changes.key?('created_on')

  pirate = Pirate.find_by_catchphrase("Me Maties!")
  pirate.catchphrase = "Thar She Blows!"
  pirate.save

  assert_equal 2, pirate.previous_changes.size
  assert_equal ["Me Maties!", "Thar She Blows!"], pirate.previous_changes['catchphrase']
  assert_not_nil pirate.previous_changes['updated_on'][0]
  assert_not_nil pirate.previous_changes['updated_on'][1]
  assert !pirate.previous_changes.key?('parrot_id')
  assert !pirate.previous_changes.key?('created_on')

  pirate = Pirate.find_by_catchphrase("Thar She Blows!")
  pirate.update_attributes(:catchphrase => "Ahoy!")

  assert_equal 2, pirate.previous_changes.size
  assert_equal ["Thar She Blows!", "Ahoy!"], pirate.previous_changes['catchphrase']
  assert_not_nil pirate.previous_changes['updated_on'][0]
  assert_not_nil pirate.previous_changes['updated_on'][1]
  assert !pirate.previous_changes.key?('parrot_id')
  assert !pirate.previous_changes.key?('created_on')

  pirate = Pirate.find_by_catchphrase("Ahoy!")
  pirate.update_attribute(:catchphrase, "Ninjas suck!")

  assert_equal 2, pirate.previous_changes.size
  assert_equal ["Ahoy!", "Ninjas suck!"], pirate.previous_changes['catchphrase']
  assert_not_nil pirate.previous_changes['updated_on'][0]
  assert_not_nil pirate.previous_changes['updated_on'][1]
  assert !pirate.previous_changes.key?('parrot_id')
  assert !pirate.previous_changes.key?('created_on')
end

# File activerecord/test/cases/dirty_test.rb, line 373
def test_reload_should_clear_changed_attributes
  pirate = Pirate.create!(:catchphrase => "shiver me timbers")
  pirate.catchphrase = "*hic*"
  assert pirate.changed?
  pirate.reload
  assert !pirate.changed?
end

# File activerecord/test/cases/dirty_test.rb, line 166
def test_reset_attribute!
  pirate = Pirate.create!(:catchphrase => 'Yar!')
  pirate.catchphrase = 'Ahoy!'

  pirate.reset_catchphrase!
  assert_equal "Yar!", pirate.catchphrase
  assert_equal Hash.new, pirate.changes
  assert !pirate.catchphrase_changed?
end

# File activerecord/test/cases/dirty_test.rb, line 390
def test_reverted_changes_are_not_dirty
  phrase = "shiver me timbers"
  pirate = Pirate.create!(:catchphrase => phrase)
  pirate.catchphrase = "*hic*"
  assert pirate.changed?
  pirate.catchphrase = phrase
  assert !pirate.changed?
end

# File activerecord/test/cases/dirty_test.rb, line 399
def test_reverted_changes_are_not_dirty_after_multiple_changes
  phrase = "shiver me timbers"
  pirate = Pirate.create!(:catchphrase => phrase)
  10.times do |i|
    pirate.catchphrase = "*hic*" * i
    assert pirate.changed?
  end
  assert pirate.changed?
  pirate.catchphrase = phrase
  assert !pirate.changed?
end

# File activerecord/test/cases/dirty_test.rb, line 412
def test_reverted_changes_are_not_dirty_going_from_nil_to_value_and_back
  pirate = Pirate.create!(:catchphrase => "Yar!")

  pirate.parrot_id = 1
  assert pirate.changed?
  assert pirate.parrot_id_changed?
  assert !pirate.catchphrase_changed?

  pirate.parrot_id = nil
  assert !pirate.changed?
  assert !pirate.parrot_id_changed?
  assert !pirate.catchphrase_changed?
end

# File activerecord/test/cases/dirty_test.rb, line 438
def test_save_always_should_update_timestamps_when_serialized_attributes_are_present
  with_partial_updates(Topic) do
    topic = Topic.create!(:content => {:a => "a"})
    topic.save!

    updated_at = topic.updated_at
    topic.content[:hello] = 'world'
    topic.save!

    assert_not_equal updated_at, topic.updated_at
    assert_equal 'world', topic.content[:hello]
  end
end

# File activerecord/test/cases/dirty_test.rb, line 452
def test_save_should_not_save_serialized_attribute_with_partial_updates_if_not_present
  with_partial_updates(Topic) do
    Topic.create!(:author_name => 'Bill', :content => {:a => "a"})
    topic = Topic.select('id, author_name').first
    topic.update_column :author_name, 'John'
    topic = Topic.first
    assert_not_nil topic.content
  end
end

# File activerecord/test/cases/dirty_test.rb, line 426
def test_save_should_store_serialized_attributes_even_with_partial_updates
  with_partial_updates(Topic) do
    topic = Topic.create!(:content => {:a => "a"})
    topic.content[:b] = "b"
    #assert topic.changed? # Known bug, will fail
    topic.save!
    assert_equal "b", topic.content[:b]
    topic.reload
    assert_equal "b", topic.content[:b]
  end
end

# File activerecord/test/cases/dirty_test.rb, line 84
def test_setting_time_attributes_with_time_zone_field_to_itself_should_not_be_marked_as_a_change
  in_time_zone 'Paris' do
    target = Class.new(ActiveRecord::Base)
    target.table_name = 'pirates'

    pirate = target.create
    pirate.created_on = pirate.created_on
    assert !pirate.created_on_changed?
  end
end

# File activerecord/test/cases/dirty_test.rb, line 57
def test_time_attributes_changes_with_time_zone
  in_time_zone 'Paris' do
    target = Class.new(ActiveRecord::Base)
    target.table_name = 'pirates'

    # New record - no changes.
    pirate = target.new
    assert !pirate.created_on_changed?
    assert_nil pirate.created_on_change

    # Saved - no changes.
    pirate.catchphrase = 'arrrr, time zone!!'
    pirate.save!
    assert !pirate.created_on_changed?
    assert_nil pirate.created_on_change

    # Change created_on.
    old_created_on = pirate.created_on
    pirate.created_on = Time.now - 1.day
    assert pirate.created_on_changed?
    assert_kind_of ActiveSupport::TimeWithZone, pirate.created_on_was
    assert_equal old_created_on, pirate.created_on_was
    pirate.created_on = old_created_on
    assert !pirate.created_on_changed?
  end
end

# File activerecord/test/cases/dirty_test.rb, line 124
def test_time_attributes_changes_without_time_zone

  target = Class.new(ActiveRecord::Base)
  target.table_name = 'pirates'

  target.time_zone_aware_attributes = false

  # New record - no changes.
  pirate = target.new
  assert !pirate.created_on_changed?
  assert_nil pirate.created_on_change

  # Saved - no changes.
  pirate.catchphrase = 'arrrr, time zone!!'
  pirate.save!
  assert !pirate.created_on_changed?
  assert_nil pirate.created_on_change

  # Change created_on.
  old_created_on = pirate.created_on
  pirate.created_on = Time.now + 1.day
  assert pirate.created_on_changed?
  # kind_of does not work because
  # ActiveSupport::TimeWithZone.name == 'Time'
  assert_instance_of Time, pirate.created_on_was
  assert_equal old_created_on, pirate.created_on_was
end

# File activerecord/test/cases/dirty_test.rb, line 95
def test_time_attributes_changes_without_time_zone_by_skip
  in_time_zone 'Paris' do
    target = Class.new(ActiveRecord::Base)
    target.table_name = 'pirates'

    target.skip_time_zone_conversion_for_attributes = [:created_on]

    # New record - no changes.
    pirate = target.new
    assert !pirate.created_on_changed?
    assert_nil pirate.created_on_change

    # Saved - no changes.
    pirate.catchphrase = 'arrrr, time zone!!'
    pirate.save!
    assert !pirate.created_on_changed?
    assert_nil pirate.created_on_change

    # Change created_on.
    old_created_on = pirate.created_on
    pirate.created_on = Time.now + 1.day
    assert pirate.created_on_changed?
    # kind_of does not work because
    # ActiveSupport::TimeWithZone.name == 'Time'
    assert_instance_of Time, pirate.created_on_was
    assert_equal old_created_on, pirate.created_on_was
  end
end

# File activerecord/test/cases/dirty_test.rb, line 245
def test_zero_to_blank_marked_as_changed
  pirate = Pirate.new
  pirate.catchphrase = "Yarrrr, me hearties"
  pirate.parrot_id = 1
  pirate.save

  # check the change from 1 to ''
  pirate = Pirate.find_by_catchphrase("Yarrrr, me hearties")
  pirate.parrot_id = ''
  assert pirate.parrot_id_changed?
  assert_equal([1, nil], pirate.parrot_id_change)
  pirate.save

  # check the change from nil to 0
  pirate = Pirate.find_by_catchphrase("Yarrrr, me hearties")
  pirate.parrot_id = 0
  assert pirate.parrot_id_changed?
  assert_equal([nil, 0], pirate.parrot_id_change)
  pirate.save

  # check the change from 0 to ''
  pirate = Pirate.find_by_catchphrase("Yarrrr, me hearties")
  pirate.parrot_id = ''
  assert pirate.parrot_id_changed?
  assert_equal([0, nil], pirate.parrot_id_change)
end