moving persistence related tests to a new file

Before refactoring test result from AR:
2291 tests, 7180 assertions, 0 failures, 0 errors

After the refactoring test result from AR:
2291 tests, 7180 assertions, 0 failures, 0 errors

Signed-off-by: José Valim <jose.valim@gmail.com>

2 files changed, 357 insertions, 327 deletions

diff --git a/activerecord/test/cases/base_test.rb b/activerecord/test/cases/base_test.rb
index 87f46d2992..831dd446ad 100644
--- a/activerecord/test/cases/base_test.rb
+++ b/activerecord/test/cases/base_test.rb
@@ -161,48 +161,6 @@ class BasicsTest < ActiveRecord::TestCase
     assert_equal @loaded_fixtures['computers']['workstation'].to_hash, Computer.find(:first).attributes
   end
 
-  def test_create
-    topic = Topic.new
-    topic.title = "New Topic"
-    topic.save
-    topic_reloaded = Topic.find(topic.id)
-    assert_equal("New Topic", topic_reloaded.title)
-  end
-
-  def test_save!
-    topic = Topic.new(:title => "New Topic")
-    assert topic.save!
-
-    reply = WrongReply.new
-    assert_raise(ActiveRecord::RecordInvalid) { reply.save! }
-  end
-
-  def test_save_null_string_attributes
-    topic = Topic.find(1)
-    topic.attributes = { "title" => "null", "author_name" => "null" }
-    topic.save!
-    topic.reload
-    assert_equal("null", topic.title)
-    assert_equal("null", topic.author_name)
-  end
-
-  def test_save_nil_string_attributes
-    topic = Topic.find(1)
-    topic.title = nil
-    topic.save!
-    topic.reload
-    assert_nil topic.title
-  end
-
-  def test_save_for_record_with_only_primary_key
-    minimalistic = Minimalistic.new
-    assert_nothing_raised { minimalistic.save }
-  end
-
-  def test_save_for_record_with_only_primary_key_that_is_provided
-    assert_nothing_raised { Minimalistic.create!(:id => 2) }
-  end
-
   def test_hashes_not_mangled
     new_topic = { :title => "New Topic" }
     new_topic_values = { :title => "AnotherTopic" }
@@ -214,78 +172,12 @@ class BasicsTest < ActiveRecord::TestCase
     assert_equal new_topic_values[:title], topic.title
   end
 
-  def test_create_many
-    topics = Topic.create([ { "title" => "first" }, { "title" => "second" }])
-    assert_equal 2, topics.size
-    assert_equal "first", topics.first.title
-  end
-
-  def test_create_columns_not_equal_attributes
-    topic = Topic.new
-    topic.title = 'Another New Topic'
-    topic.send :write_attribute, 'does_not_exist', 'test'
-    assert_nothing_raised { topic.save }
-  end
-
   def test_create_through_factory
     topic = Topic.create("title" => "New Topic")
     topicReloaded = Topic.find(topic.id)
     assert_equal(topic, topicReloaded)
   end
 
-  def test_create_through_factory_with_block
-    topic = Topic.create("title" => "New Topic") do |t|
-      t.author_name = "David"
-    end
-    topicReloaded = Topic.find(topic.id)
-    assert_equal("New Topic", topic.title)
-    assert_equal("David", topic.author_name)
-  end
-
-  def test_create_many_through_factory_with_block
-    topics = Topic.create([ { "title" => "first" }, { "title" => "second" }]) do |t|
-      t.author_name = "David"
-    end
-    assert_equal 2, topics.size
-    topic1, topic2 = Topic.find(topics[0].id), Topic.find(topics[1].id)
-    assert_equal "first", topic1.title
-    assert_equal "David", topic1.author_name
-    assert_equal "second", topic2.title
-    assert_equal "David", topic2.author_name
-  end
-
-  def test_update
-    topic = Topic.new
-    topic.title = "Another New Topic"
-    topic.written_on = "2003-12-12 23:23:00"
-    topic.save
-    topicReloaded = Topic.find(topic.id)
-    assert_equal("Another New Topic", topicReloaded.title)
-
-    topicReloaded.title = "Updated topic"
-    topicReloaded.save
-
-    topicReloadedAgain = Topic.find(topic.id)
-
-    assert_equal("Updated topic", topicReloadedAgain.title)
-  end
-
-  def test_update_columns_not_equal_attributes
-    topic = Topic.new
-    topic.title = "Still another topic"
-    topic.save
-
-    topicReloaded = Topic.find(topic.id)
-    topicReloaded.title = "A New Topic"
-    topicReloaded.send :write_attribute, 'does_not_exist', 'test'
-    assert_nothing_raised { topicReloaded.save }
-  end
-
-  def test_update_for_record_with_only_primary_key
-    minimalistic = minimalistics(:first)
-    assert_nothing_raised { minimalistic.save }
-  end
-
   def test_write_attribute
     topic = Topic.new
     topic.send(:write_attribute, :title, "Still another topic")
@@ -393,7 +285,6 @@ class BasicsTest < ActiveRecord::TestCase
     assert !object.int_value?
   end
 
-
   def test_non_attribute_access_and_assignment
     topic = Topic.new
     assert !topic.respond_to?("mumbo")
@@ -497,29 +388,6 @@ class BasicsTest < ActiveRecord::TestCase
     assert topic.instance_variable_get("@custom_approved")
   end
 
-  def test_delete
-    topic = Topic.find(1)
-    assert_equal topic, topic.delete, 'topic.delete did not return self'
-    assert topic.frozen?, 'topic not frozen after delete'
-    assert_raise(ActiveRecord::RecordNotFound) { Topic.find(topic.id) }
-  end
-
-  def test_delete_doesnt_run_callbacks
-    Topic.find(1).delete
-    assert_not_nil Topic.find(2)
-  end
-
-  def test_destroy
-    topic = Topic.find(1)
-    assert_equal topic, topic.destroy, 'topic.destroy did not return self'
-    assert topic.frozen?, 'topic not frozen after destroy'
-    assert_raise(ActiveRecord::RecordNotFound) { Topic.find(topic.id) }
-  end
-
-  def test_record_not_found_exception
-    assert_raise(ActiveRecord::RecordNotFound) { topicReloaded = Topic.find(99999) }
-  end
-
   def test_initialize_with_attributes
     topic = Topic.new({
       "title" => "initialized from attributes", "written_on" => "2003-12-12 23:23"
@@ -688,33 +556,6 @@ class BasicsTest < ActiveRecord::TestCase
     assert Topic.find(2).approved?
   end
 
-  def test_update_all
-    assert_equal Topic.count, Topic.update_all("content = 'bulk updated!'")
-    assert_equal "bulk updated!", Topic.find(1).content
-    assert_equal "bulk updated!", Topic.find(2).content
-
-    assert_equal Topic.count, Topic.update_all(['content = ?', 'bulk updated again!'])
-    assert_equal "bulk updated again!", Topic.find(1).content
-    assert_equal "bulk updated again!", Topic.find(2).content
-
-    assert_equal Topic.count, Topic.update_all(['content = ?', nil])
-    assert_nil Topic.find(1).content
-  end
-
-  def test_update_all_with_hash
-    assert_not_nil Topic.find(1).last_read
-    assert_equal Topic.count, Topic.update_all(:content => 'bulk updated with hash!', :last_read => nil)
-    assert_equal "bulk updated with hash!", Topic.find(1).content
-    assert_equal "bulk updated with hash!", Topic.find(2).content
-    assert_nil Topic.find(1).last_read
-    assert_nil Topic.find(2).last_read
-  end
-
-  def test_update_all_with_non_standard_table_name
-    assert_equal 1, WarehouseThing.update_all(['value = ?', 0], ['id = ?', 1])
-    assert_equal 0, WarehouseThing.find(1).value
-  end
-
   if current_adapter?(:MysqlAdapter)
     def test_update_all_with_order_and_limit
       assert_equal 1, Topic.update_all("content = 'bulk updated!'", nil, :limit => 1, :order => 'id DESC')
@@ -861,119 +702,7 @@ class BasicsTest < ActiveRecord::TestCase
     assert_equal [ Topic.find(1) ], [ Topic.find(2).topic ] & [ Topic.find(1) ]
   end
 
-  def test_delete_new_record
-    client = Client.new
-    client.delete
-    assert client.frozen?
-  end
-
-  def test_delete_record_with_associations
-    client = Client.find(3)
-    client.delete
-    assert client.frozen?
-    assert_kind_of Firm, client.firm
-    assert_raise(ActiveSupport::FrozenObjectError) { client.name = "something else" }
-  end
-
-  def test_destroy_new_record
-    client = Client.new
-    client.destroy
-    assert client.frozen?
-  end
-
-  def test_destroy_record_with_associations
-    client = Client.find(3)
-    client.destroy
-    assert client.frozen?
-    assert_kind_of Firm, client.firm
-    assert_raise(ActiveSupport::FrozenObjectError) { client.name = "something else" }
-  end
-
-  def test_update_attribute
-    assert !Topic.find(1).approved?
-    Topic.find(1).update_attribute("approved", true)
-    assert Topic.find(1).approved?
-
-    Topic.find(1).update_attribute(:approved, false)
-    assert !Topic.find(1).approved?
-  end
-
-  def test_update_attribute_with_one_changed_and_one_updated
-    t = Topic.order('id').limit(1).first
-    title, author_name = t.title, t.author_name
-    t.author_name = 'John'
-    t.update_attribute(:title, 'super_title')
-    assert_equal 'John', t.author_name
-    assert_equal 'super_title', t.title
-    assert t.changed?, "topic should have changed"
-    assert t.author_name_changed?, "author_name should have changed"
-    assert !t.title_changed?, "title should not have changed"
-    assert_nil t.title_change, 'title change should be nil'
-    assert_equal ['author_name'], t.changed
-
-    t.reload
-    assert_equal 'David', t.author_name
-    assert_equal 'super_title', t.title
-  end
-
-  def test_update_attribute_with_one_updated
-    t = Topic.first
-    title = t.title
-    t.update_attribute(:title, 'super_title')
-    assert_equal 'super_title', t.title
-    assert !t.changed?, "topic should not have changed"
-    assert !t.title_changed?, "title should not have changed"
-    assert_nil t.title_change, 'title change should be nil'
-
-    t.reload
-    assert_equal 'super_title', t.title
-  end
-
-  def test_update_attribute_for_udpated_at_on
-    developer = Developer.find(1)
-    updated_at = developer.updated_at
-    developer.update_attribute(:salary, 80001)
-    assert_not_equal updated_at, developer.updated_at
-    developer.reload
-    assert_not_equal updated_at, developer.updated_at
-  end
-
-  def test_update_attributes
-    topic = Topic.find(1)
-    assert !topic.approved?
-    assert_equal "The First Topic", topic.title
-
-    topic.update_attributes("approved" => true, "title" => "The First Topic Updated")
-    topic.reload
-    assert topic.approved?
-    assert_equal "The First Topic Updated", topic.title
-
-    topic.update_attributes(:approved => false, :title => "The First Topic")
-    topic.reload
-    assert !topic.approved?
-    assert_equal "The First Topic", topic.title
-  end
-
-  def test_update_attributes!
-    Reply.validates_presence_of(:title)
-    reply = Reply.find(2)
-    assert_equal "The Second Topic of the day", reply.title
-    assert_equal "Have a nice day", reply.content
 
-    reply.update_attributes!("title" => "The Second Topic of the day updated", "content" => "Have a nice evening")
-    reply.reload
-    assert_equal "The Second Topic of the day updated", reply.title
-    assert_equal "Have a nice evening", reply.content
-
-    reply.update_attributes!(:title => "The Second Topic of the day", :content => "Have a nice day")
-    reply.reload
-    assert_equal "The Second Topic of the day", reply.title
-    assert_equal "Have a nice day", reply.content
-
-    assert_raise(ActiveRecord::RecordInvalid) { reply.update_attributes!(:title => nil, :content => "Have a nice evening") }
-  ensure
-    Reply.reset_callbacks(:validate)
-  end
 
   def test_readonly_attributes
     assert_equal Set.new([ 'title' , 'comments_count' ]), ReadonlyTitlePost.readonly_attributes
@@ -1234,35 +963,6 @@ class BasicsTest < ActiveRecord::TestCase
     assert_equal false, Topic.find(1).new_record?
   end
 
-  def test_destroyed_returns_boolean
-    developer = Developer.first
-    assert_equal false, developer.destroyed?
-    developer.destroy
-    assert_equal true, developer.destroyed?
-
-    developer = Developer.last
-    assert_equal false, developer.destroyed?
-    developer.delete
-    assert_equal true, developer.destroyed?
-  end
-
-  def test_persisted_returns_boolean
-    developer = Developer.new(:name => "Jose")
-    assert_equal false, developer.persisted?
-    developer.save!
-    assert_equal true, developer.persisted?
-
-    developer = Developer.first
-    assert_equal true, developer.persisted?
-    developer.destroy
-    assert_equal false, developer.persisted?
-
-    developer = Developer.last
-    assert_equal true, developer.persisted?
-    developer.delete
-    assert_equal false, developer.persisted?
-  end
-
   def test_clone
     topic = Topic.find(1)
     cloned_topic = nil
@@ -1605,24 +1305,6 @@ class BasicsTest < ActiveRecord::TestCase
     end
   end
 
-  def test_class_level_destroy
-    should_be_destroyed_reply = Reply.create("title" => "hello", "content" => "world")
-    Topic.find(1).replies << should_be_destroyed_reply
-
-    Topic.destroy(1)
-    assert_raise(ActiveRecord::RecordNotFound) { Topic.find(1) }
-    assert_raise(ActiveRecord::RecordNotFound) { Reply.find(should_be_destroyed_reply.id) }
-  end
-
-  def test_class_level_delete
-    should_be_destroyed_reply = Reply.create("title" => "hello", "content" => "world")
-    Topic.find(1).replies << should_be_destroyed_reply
-
-    Topic.delete(1)
-    assert_raise(ActiveRecord::RecordNotFound) { Topic.find(1) }
-    assert_nothing_raised { Reply.find(should_be_destroyed_reply.id) }
-  end
-
   def test_increment_attribute
     assert_equal 50, accounts(:signals37).credit_limit
     accounts(:signals37).increment! :credit_limit
@@ -2235,15 +1917,6 @@ class BasicsTest < ActiveRecord::TestCase
     ActiveRecord::Base.logger = original_logger
   end
 
-  def test_create_with_custom_timestamps
-    custom_datetime = 1.hour.ago.beginning_of_day
-
-    %w(created_at created_on updated_at updated_on).each do |attribute|
-      parrot = LiveParrot.create(:name => "colombian", attribute => custom_datetime)
-      assert_equal custom_datetime, parrot[attribute]
-    end
-  end
-
   def test_dup
     assert !Minimalistic.new.freeze.dup.frozen?
   end
diff --git a/activerecord/test/cases/persistence_test.rb b/activerecord/test/cases/persistence_test.rb
new file mode 100644
index 0000000000..fbfdd7b041
--- /dev/null
+++ b/activerecord/test/cases/persistence_test.rb
@@ -0,0 +1,357 @@
+require "cases/helper"
+require 'models/post'
+require 'models/author'
+require 'models/topic'
+require 'models/reply'
+require 'models/category'
+require 'models/company'
+require 'models/customer'
+require 'models/developer'
+require 'models/project'
+require 'models/default'
+require 'models/auto_id'
+require 'models/column_name'
+require 'models/subscriber'
+require 'models/keyboard'
+require 'models/comment'
+require 'models/minimalistic'
+require 'models/warehouse_thing'
+require 'models/parrot'
+require 'models/loose_person'
+require 'rexml/document'
+require 'active_support/core_ext/exception'
+
+class PersistencesTest < ActiveRecord::TestCase
+
+  fixtures :topics, :companies, :developers, :projects, :computers, :accounts, :minimalistics, 'warehouse-things', :authors, :categorizations, :categories, :posts
+
+  def test_create
+    topic = Topic.new
+    topic.title = "New Topic"
+    topic.save
+    topic_reloaded = Topic.find(topic.id)
+    assert_equal("New Topic", topic_reloaded.title)
+  end
+
+  def test_save!
+    topic = Topic.new(:title => "New Topic")
+    assert topic.save!
+
+    reply = WrongReply.new
+    assert_raise(ActiveRecord::RecordInvalid) { reply.save! }
+  end
+
+  def test_save_null_string_attributes
+    topic = Topic.find(1)
+    topic.attributes = { "title" => "null", "author_name" => "null" }
+    topic.save!
+    topic.reload
+    assert_equal("null", topic.title)
+    assert_equal("null", topic.author_name)
+  end
+
+  def test_save_nil_string_attributes
+    topic = Topic.find(1)
+    topic.title = nil
+    topic.save!
+    topic.reload
+    assert_nil topic.title
+  end
+
+  def test_save_for_record_with_only_primary_key
+    minimalistic = Minimalistic.new
+    assert_nothing_raised { minimalistic.save }
+  end
+
+  def test_save_for_record_with_only_primary_key_that_is_provided
+    assert_nothing_raised { Minimalistic.create!(:id => 2) }
+  end
+
+  def test_create_many
+    topics = Topic.create([ { "title" => "first" }, { "title" => "second" }])
+    assert_equal 2, topics.size
+    assert_equal "first", topics.first.title
+  end
+
+  def test_create_columns_not_equal_attributes
+    topic = Topic.new
+    topic.title = 'Another New Topic'
+    topic.send :write_attribute, 'does_not_exist', 'test'
+    assert_nothing_raised { topic.save }
+  end
+
+  def test_create_through_factory_with_block
+    topic = Topic.create("title" => "New Topic") do |t|
+      t.author_name = "David"
+    end
+    topicReloaded = Topic.find(topic.id)
+    assert_equal("New Topic", topic.title)
+    assert_equal("David", topic.author_name)
+  end
+
+  def test_create_many_through_factory_with_block
+    topics = Topic.create([ { "title" => "first" }, { "title" => "second" }]) do |t|
+      t.author_name = "David"
+    end
+    assert_equal 2, topics.size
+    topic1, topic2 = Topic.find(topics[0].id), Topic.find(topics[1].id)
+    assert_equal "first", topic1.title
+    assert_equal "David", topic1.author_name
+    assert_equal "second", topic2.title
+    assert_equal "David", topic2.author_name
+  end
+
+  def test_update
+    topic = Topic.new
+    topic.title = "Another New Topic"
+    topic.written_on = "2003-12-12 23:23:00"
+    topic.save
+    topicReloaded = Topic.find(topic.id)
+    assert_equal("Another New Topic", topicReloaded.title)
+
+    topicReloaded.title = "Updated topic"
+    topicReloaded.save
+
+    topicReloadedAgain = Topic.find(topic.id)
+
+    assert_equal("Updated topic", topicReloadedAgain.title)
+  end
+
+  def test_update_columns_not_equal_attributes
+    topic = Topic.new
+    topic.title = "Still another topic"
+    topic.save
+
+    topicReloaded = Topic.find(topic.id)
+    topicReloaded.title = "A New Topic"
+    topicReloaded.send :write_attribute, 'does_not_exist', 'test'
+    assert_nothing_raised { topicReloaded.save }
+  end
+
+  def test_update_for_record_with_only_primary_key
+    minimalistic = minimalistics(:first)
+    assert_nothing_raised { minimalistic.save }
+  end
+
+  def test_delete
+    topic = Topic.find(1)
+    assert_equal topic, topic.delete, 'topic.delete did not return self'
+    assert topic.frozen?, 'topic not frozen after delete'
+    assert_raise(ActiveRecord::RecordNotFound) { Topic.find(topic.id) }
+  end
+
+  def test_delete_doesnt_run_callbacks
+    Topic.find(1).delete
+    assert_not_nil Topic.find(2)
+  end
+
+  def test_destroy
+    topic = Topic.find(1)
+    assert_equal topic, topic.destroy, 'topic.destroy did not return self'
+    assert topic.frozen?, 'topic not frozen after destroy'
+    assert_raise(ActiveRecord::RecordNotFound) { Topic.find(topic.id) }
+  end
+
+  def test_record_not_found_exception
+    assert_raise(ActiveRecord::RecordNotFound) { topicReloaded = Topic.find(99999) }
+  end
+
+  def test_update_all
+    assert_equal Topic.count, Topic.update_all("content = 'bulk updated!'")
+    assert_equal "bulk updated!", Topic.find(1).content
+    assert_equal "bulk updated!", Topic.find(2).content
+
+    assert_equal Topic.count, Topic.update_all(['content = ?', 'bulk updated again!'])
+    assert_equal "bulk updated again!", Topic.find(1).content
+    assert_equal "bulk updated again!", Topic.find(2).content
+
+    assert_equal Topic.count, Topic.update_all(['content = ?', nil])
+    assert_nil Topic.find(1).content
+  end
+
+  def test_update_all_with_hash
+    assert_not_nil Topic.find(1).last_read
+    assert_equal Topic.count, Topic.update_all(:content => 'bulk updated with hash!', :last_read => nil)
+    assert_equal "bulk updated with hash!", Topic.find(1).content
+    assert_equal "bulk updated with hash!", Topic.find(2).content
+    assert_nil Topic.find(1).last_read
+    assert_nil Topic.find(2).last_read
+  end
+
+  def test_update_all_with_non_standard_table_name
+    assert_equal 1, WarehouseThing.update_all(['value = ?', 0], ['id = ?', 1])
+    assert_equal 0, WarehouseThing.find(1).value
+  end
+
+  def test_delete_new_record
+    client = Client.new
+    client.delete
+    assert client.frozen?
+  end
+
+  def test_delete_record_with_associations
+    client = Client.find(3)
+    client.delete
+    assert client.frozen?
+    assert_kind_of Firm, client.firm
+    assert_raise(ActiveSupport::FrozenObjectError) { client.name = "something else" }
+  end
+
+  def test_destroy_new_record
+    client = Client.new
+    client.destroy
+    assert client.frozen?
+  end
+
+  def test_destroy_record_with_associations
+    client = Client.find(3)
+    client.destroy
+    assert client.frozen?
+    assert_kind_of Firm, client.firm
+    assert_raise(ActiveSupport::FrozenObjectError) { client.name = "something else" }
+  end
+
+  def test_update_attribute
+    assert !Topic.find(1).approved?
+    Topic.find(1).update_attribute("approved", true)
+    assert Topic.find(1).approved?
+
+    Topic.find(1).update_attribute(:approved, false)
+    assert !Topic.find(1).approved?
+  end
+
+  def test_update_attribute_with_one_changed_and_one_updated
+    t = Topic.order('id').limit(1).first
+    title, author_name = t.title, t.author_name
+    t.author_name = 'John'
+    t.update_attribute(:title, 'super_title')
+    assert_equal 'John', t.author_name
+    assert_equal 'super_title', t.title
+    assert t.changed?, "topic should have changed"
+    assert t.author_name_changed?, "author_name should have changed"
+    assert !t.title_changed?, "title should not have changed"
+    assert_nil t.title_change, 'title change should be nil'
+    assert_equal ['author_name'], t.changed
+
+    t.reload
+    assert_equal 'David', t.author_name
+    assert_equal 'super_title', t.title
+  end
+
+  def test_update_attribute_with_one_updated
+    t = Topic.first
+    title = t.title
+    t.update_attribute(:title, 'super_title')
+    assert_equal 'super_title', t.title
+    assert !t.changed?, "topic should not have changed"
+    assert !t.title_changed?, "title should not have changed"
+    assert_nil t.title_change, 'title change should be nil'
+
+    t.reload
+    assert_equal 'super_title', t.title
+  end
+
+  def test_update_attribute_for_udpated_at_on
+    developer = Developer.find(1)
+    updated_at = developer.updated_at
+    developer.update_attribute(:salary, 80001)
+    assert_not_equal updated_at, developer.updated_at
+    developer.reload
+    assert_not_equal updated_at, developer.updated_at
+  end
+
+
+  def test_update_attributes
+    topic = Topic.find(1)
+    assert !topic.approved?
+    assert_equal "The First Topic", topic.title
+
+    topic.update_attributes("approved" => true, "title" => "The First Topic Updated")
+    topic.reload
+    assert topic.approved?
+    assert_equal "The First Topic Updated", topic.title
+
+    topic.update_attributes(:approved => false, :title => "The First Topic")
+    topic.reload
+    assert !topic.approved?
+    assert_equal "The First Topic", topic.title
+  end
+
+  def test_update_attributes!
+    Reply.validates_presence_of(:title)
+    reply = Reply.find(2)
+    assert_equal "The Second Topic of the day", reply.title
+    assert_equal "Have a nice day", reply.content
+
+    reply.update_attributes!("title" => "The Second Topic of the day updated", "content" => "Have a nice evening")
+    reply.reload
+    assert_equal "The Second Topic of the day updated", reply.title
+    assert_equal "Have a nice evening", reply.content
+
+    reply.update_attributes!(:title => "The Second Topic of the day", :content => "Have a nice day")
+    reply.reload
+    assert_equal "The Second Topic of the day", reply.title
+    assert_equal "Have a nice day", reply.content
+
+    assert_raise(ActiveRecord::RecordInvalid) { reply.update_attributes!(:title => nil, :content => "Have a nice evening") }
+  ensure
+    Reply.reset_callbacks(:validate)
+  end
+
+  def test_destroyed_returns_boolean
+    developer = Developer.first
+    assert_equal false, developer.destroyed?
+    developer.destroy
+    assert_equal true, developer.destroyed?
+
+    developer = Developer.last
+    assert_equal false, developer.destroyed?
+    developer.delete
+    assert_equal true, developer.destroyed?
+  end
+
+  def test_persisted_returns_boolean
+    developer = Developer.new(:name => "Jose")
+    assert_equal false, developer.persisted?
+    developer.save!
+    assert_equal true, developer.persisted?
+
+    developer = Developer.first
+    assert_equal true, developer.persisted?
+    developer.destroy
+    assert_equal false, developer.persisted?
+
+    developer = Developer.last
+    assert_equal true, developer.persisted?
+    developer.delete
+    assert_equal false, developer.persisted?
+  end
+
+  def test_class_level_destroy
+    should_be_destroyed_reply = Reply.create("title" => "hello", "content" => "world")
+    Topic.find(1).replies << should_be_destroyed_reply
+
+    Topic.destroy(1)
+    assert_raise(ActiveRecord::RecordNotFound) { Topic.find(1) }
+    assert_raise(ActiveRecord::RecordNotFound) { Reply.find(should_be_destroyed_reply.id) }
+  end
+
+  def test_class_level_delete
+    should_be_destroyed_reply = Reply.create("title" => "hello", "content" => "world")
+    Topic.find(1).replies << should_be_destroyed_reply
+
+    Topic.delete(1)
+    assert_raise(ActiveRecord::RecordNotFound) { Topic.find(1) }
+    assert_nothing_raised { Reply.find(should_be_destroyed_reply.id) }
+  end
+
+  def test_create_with_custom_timestamps
+    custom_datetime = 1.hour.ago.beginning_of_day
+
+    %w(created_at created_on updated_at updated_on).each do |attribute|
+      parrot = LiveParrot.create(:name => "colombian", attribute => custom_datetime)
+      assert_equal custom_datetime, parrot[attribute]
+    end
+  end
+
+end