Class ActiveRecord::DupTest < ActiveRecord::TestCase

# File activerecord/test/cases/dup_test.rb, line 8
def test_dup
  assert !Topic.new.freeze.dup.frozen?
end

# File activerecord/test/cases/dup_test.rb, line 73
def test_dup_attributes_are_independent
  topic = Topic.order(:id).first
  duped = topic.dup

  duped.author_name = 'meow'
  topic.author_name = 'Aaron'

  assert_equal 'Aaron', topic.author_name
  assert_equal 'meow', duped.author_name
end

# File activerecord/test/cases/dup_test.rb, line 35
def test_dup_has_no_id
  topic = Topic.order(:id).first
  duped = topic.dup
  assert_nil duped.id
end

# File activerecord/test/cases/dup_test.rb, line 27
def test_dup_not_persisted
  topic = Topic.order(:id).first
  duped = topic.dup

  assert !duped.persisted?, 'topic not persisted'
  assert duped.new_record?, 'topic is new'
end

# File activerecord/test/cases/dup_test.rb, line 84
def test_dup_timestamps_are_cleared
  topic = Topic.order(:id).first
  assert_not_nil topic.updated_at
  assert_not_nil topic.created_at

  # temporary change to the topic object
  topic.updated_at -= 3.days

  #dup should not preserve the timestamps if present
  new_topic = topic.dup
  assert_nil new_topic.updated_at
  assert_nil new_topic.created_at

  new_topic.save
  assert_not_nil new_topic.updated_at
  assert_not_nil new_topic.created_at
end

# File activerecord/test/cases/dup_test.rb, line 63
def test_dup_topics_are_independent
  topic = Topic.order(:id).first
  topic.author_name = 'Aaron'
  duped = topic.dup

  duped.author_name = 'meow'

  assert_not_equal topic.changes, duped.changes
end

# File activerecord/test/cases/dup_test.rb, line 102
def test_dup_validity_is_independent
  Topic.validates_presence_of :title
  topic = Topic.new("title" => "Litterature")
  topic.valid?

  duped = topic.dup
  duped.title = nil
  assert duped.invalid?

  topic.title = nil
  duped.title = 'Mathematics'
  assert topic.invalid?
  assert duped.valid?
end

# File activerecord/test/cases/dup_test.rb, line 48
def test_dup_with_changes
  dbtopic = Topic.order(:id).first
  topic = Topic.new

  topic.attributes = dbtopic.attributes

  #duped has no timestamp values
  duped = dbtopic.dup

  #clear topic timestamp values
  topic.send(:clear_timestamp_attributes)

  assert_equal topic.changes, duped.changes
end

# File activerecord/test/cases/dup_test.rb, line 117
def test_dup_with_default_scope
  prev_default_scopes = Topic.default_scopes
  Topic.default_scopes = [Topic.where(:approved => true)]
  topic = Topic.new(:approved => false)
  assert !topic.dup.approved?, "should not be overriden by default scopes"
ensure
  Topic.default_scopes = prev_default_scopes
end

# File activerecord/test/cases/dup_test.rb, line 41
def test_dup_with_modified_attributes
  topic = Topic.order(:id).first
  topic.author_name = 'Aaron'
  duped = topic.dup
  assert_equal 'Aaron', duped.author_name
end

# File activerecord/test/cases/dup_test.rb, line 19
def test_is_readonly
  topic = Topic.order(:id).first
  topic.readonly!

  duped = topic.dup
  assert duped.readonly?, 'should be readonly'
end

# File activerecord/test/cases/dup_test.rb, line 12
def test_not_readonly
  topic = Topic.order(:id).first

  duped = topic.dup
  assert !duped.readonly?, 'should not be readonly'
end