add tests for plain models callback

Fixes #81
Fixes #84

Conflicts:
	lib/paranoia.rb

lib/paranoia.rb

@@ -44,12 +44,12 @@ module Paranoia
   end
 
   def destroy
-    run_callbacks(:destroy) { delete }
+    run_callbacks(:destroy) { delete_or_soft_delete(true) }
   end
 
   def delete
     return if new_record?
-    destroyed? ? destroy! : update_column(paranoia_column, Time.now)
+    delete_or_soft_delete
   end
 
   def restore!
@@ -60,6 +60,24 @@ module Paranoia
     !!send(paranoia_column)
   end
   alias :deleted? :destroyed?
+
+  private
+  # select and exec delete or soft-delete.
+  # @param with_transaction [Boolean] exec with ActiveRecord Transactions, when soft-delete.
+  def delete_or_soft_delete(with_transaction=false)
+    destroyed? ? destroy! : touch_paranoia_column(with_transaction)
+  end
+
+  # touch paranoia column.
+  # insert time to paranoia column.
+  # @param with_transaction [Boolean] exec with ActiveRecord Transactions.
+  def touch_paranoia_column(with_transaction=false)
+    if with_transaction
+      with_transaction_returning_status { touch(paranoia_column) }
+    else
+      touch(paranoia_column)
+    end
+  end
 end
 
 class ActiveRecord::Base

test/paranoia_test.rb

@@ -63,9 +63,32 @@ class ParanoiaTest < Test::Unit::TestCase
   # Anti-regression test for #81, which would've introduced a bug to break this test.
   def test_destroy_behavior_for_plain_models_callbacks
     model = CallbackModel.new
+    model.save
+    model.remove_called_variables     # clear called callback flags
     model.destroy
+
+    assert_equal nil, model.instance_variable_get(:@update_callback_called)
+    assert_equal nil, model.instance_variable_get(:@save_callback_called)
+    assert_equal nil, model.instance_variable_get(:@validate_called)
+
+    assert model.instance_variable_get(:@destroy_callback_called)
+    assert model.instance_variable_get(:@after_destroy_callback_called)
+    assert model.instance_variable_get(:@after_commit_callback_called)
+  end
+
+
+  def test_delete_behavior_for_plain_models_callbacks
+    model = CallbackModel.new
+    model.save
+    model.remove_called_variables     # clear called callback flags
+    model.delete
+
     assert_equal nil, model.instance_variable_get(:@update_callback_called)
     assert_equal nil, model.instance_variable_get(:@save_callback_called)
+    assert_equal nil, model.instance_variable_get(:@validate_called)
+    assert_equal nil, model.instance_variable_get(:@destroy_callback_called)
+    assert_equal nil, model.instance_variable_get(:@after_destroy_callback_called)
+    assert_equal nil, model.instance_variable_get(:@after_commit_callback_called)
   end
 
   def test_destroy_behavior_for_paranoid_models
@@ -313,6 +336,15 @@ class CallbackModel < ActiveRecord::Base
   before_restore {|model| model.instance_variable_set :@restore_callback_called, true }
   before_update  {|model| model.instance_variable_set :@update_callback_called, true }
   before_save    {|model| model.instance_variable_set :@save_callback_called, true}
+
+  after_destroy  {|model| model.instance_variable_set :@after_destroy_callback_called, true }
+  after_commit   {|model| model.instance_variable_set :@after_commit_callback_called, true }
+
+  validate       {|model| model.instance_variable_set :@validate_called, true }
+
+  def remove_called_variables
+    instance_variables.each {|name| (name.to_s.end_with?('_called')) ? remove_instance_variable(name) : nil}
+  end
 end
 
 class ParentModel < ActiveRecord::Base