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require 'cases/helper'
require 'models/topic' # For booleans
require 'models/pirate' # For timestamps
class Pirate # Just reopening it, not defining it
attr_accessor :detected_changes_in_after_update # Boolean for if changes are detected
attr_accessor :changes_detected_in_after_update # Actual changes
after_update :check_changes
private
# after_save/update in sweepers, observers, and the model itself
# can end up checking dirty status and acting on the results
def check_changes
if self.changed?
self.detected_changes_in_after_update = true
self.changes_detected_in_after_update = self.changes
end
end
end
class DirtyTest < Test::Unit::TestCase
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
# Rewritten from original tests to use AR
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
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
end
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