require "cases/helper" require 'models/minimalistic' require 'models/developer' require 'models/auto_id' require 'models/computer' require 'models/topic' require 'models/company' require 'models/category' require 'models/reply' class AttributeMethodsTest < ActiveRecord::TestCase fixtures :topics, :developers, :companies, :computers def setup @old_matchers = ActiveRecord::Base.send(:attribute_method_matchers).dup @target = Class.new(ActiveRecord::Base) @target.table_name = 'topics' end def teardown ActiveRecord::Base.send(:attribute_method_matchers).clear ActiveRecord::Base.send(:attribute_method_matchers).concat(@old_matchers) end def test_attribute_present t = Topic.new t.title = "hello there!" t.written_on = Time.now assert t.attribute_present?("title") assert t.attribute_present?("written_on") assert !t.attribute_present?("content") end def test_attribute_keys_on_new_instance t = Topic.new assert_equal nil, t.title, "The topics table has a title column, so it should be nil" assert_raise(NoMethodError) { t.title2 } end def test_boolean_attributes assert ! Topic.find(1).approved? assert Topic.find(2).approved? end def test_set_attributes topic = Topic.find(1) topic.attributes = { "title" => "Budget", "author_name" => "Jason" } topic.save assert_equal("Budget", topic.title) assert_equal("Jason", topic.author_name) assert_equal(topics(:first).author_email_address, Topic.find(1).author_email_address) end def test_set_attributes_without_hash topic = Topic.new assert_nothing_raised { topic.attributes = '' } end def test_integers_as_nil test = AutoId.create('value' => '') assert_nil AutoId.find(test.id).value end def test_set_attributes_with_block topic = Topic.new do |t| t.title = "Budget" t.author_name = "Jason" end assert_equal("Budget", topic.title) assert_equal("Jason", topic.author_name) end def test_respond_to? topic = Topic.find(1) assert_respond_to topic, "title" assert_respond_to topic, "title?" assert_respond_to topic, "title=" assert_respond_to topic, :title assert_respond_to topic, :title? assert_respond_to topic, :title= assert_respond_to topic, "author_name" assert_respond_to topic, "attribute_names" assert !topic.respond_to?("nothingness") assert !topic.respond_to?(:nothingness) end def test_array_content topic = Topic.new topic.content = %w( one two three ) topic.save assert_equal(%w( one two three ), Topic.find(topic.id).content) end def test_read_attributes_before_type_cast category = Category.new({:name=>"Test categoty", :type => nil}) category_attrs = {"name"=>"Test categoty", "type" => nil, "categorizations_count" => nil} assert_equal category_attrs , category.attributes_before_type_cast end if current_adapter?(:MysqlAdapter) def test_read_attributes_before_type_cast_on_boolean bool = Booleantest.create({ "value" => false }) assert_equal "0", bool.reload.attributes_before_type_cast["value"] end end def test_read_attributes_before_type_cast_on_datetime developer = Developer.find(:first) # Oracle adapter returns Time before type cast unless current_adapter?(:OracleAdapter) assert_equal developer.created_at.to_s(:db) , developer.attributes_before_type_cast["created_at"] else assert_equal developer.created_at.to_s(:db) , developer.attributes_before_type_cast["created_at"].to_s(:db) developer.created_at = "345643456" assert_equal developer.created_at_before_type_cast, "345643456" assert_equal developer.created_at, nil developer.created_at = "2010-03-21T21:23:32+01:00" assert_equal developer.created_at_before_type_cast, "2010-03-21T21:23:32+01:00" assert_equal developer.created_at, Time.parse("2010-03-21T21:23:32+01:00") end end def test_hash_content topic = Topic.new topic.content = { "one" => 1, "two" => 2 } topic.save assert_equal 2, Topic.find(topic.id).content["two"] topic.content_will_change! topic.content["three"] = 3 topic.save assert_equal 3, Topic.find(topic.id).content["three"] end def test_update_array_content topic = Topic.new topic.content = %w( one two three ) topic.content.push "four" assert_equal(%w( one two three four ), topic.content) topic.save topic = Topic.find(topic.id) topic.content << "five" assert_equal(%w( one two three four five ), topic.content) end def test_case_sensitive_attributes_hash # DB2 is not case-sensitive return true if current_adapter?(:DB2Adapter) assert_equal @loaded_fixtures['computers']['workstation'].to_hash, Computer.find(:first).attributes end def test_hashes_not_mangled new_topic = { :title => "New Topic" } new_topic_values = { :title => "AnotherTopic" } topic = Topic.new(new_topic) assert_equal new_topic[:title], topic.title topic.attributes= new_topic_values assert_equal new_topic_values[:title], topic.title end def test_create_through_factory topic = Topic.create("title" => "New Topic") topicReloaded = Topic.find(topic.id) assert_equal(topic, topicReloaded) end def test_write_attribute topic = Topic.new topic.send(:write_attribute, :title, "Still another topic") assert_equal "Still another topic", topic.title topic.send(:write_attribute, "title", "Still another topic: part 2") assert_equal "Still another topic: part 2", topic.title end def test_read_attribute topic = Topic.new topic.title = "Don't change the topic" assert_equal "Don't change the topic", topic.send(:read_attribute, "title") assert_equal "Don't change the topic", topic["title"] assert_equal "Don't change the topic", topic.send(:read_attribute, :title) assert_equal "Don't change the topic", topic[:title] end def test_read_attribute_when_false topic = topics(:first) topic.approved = false assert !topic.approved?, "approved should be false" topic.approved = "false" assert !topic.approved?, "approved should be false" end def test_read_attribute_when_true topic = topics(:first) topic.approved = true assert topic.approved?, "approved should be true" topic.approved = "true" assert topic.approved?, "approved should be true" end def test_read_write_boolean_attribute topic = Topic.new # puts "" # puts "New Topic" # puts topic.inspect topic.approved = "false" # puts "Expecting false" # puts topic.inspect assert !topic.approved?, "approved should be false" topic.approved = "false" # puts "Expecting false" # puts topic.inspect assert !topic.approved?, "approved should be false" topic.approved = "true" # puts "Expecting true" # puts topic.inspect assert topic.approved?, "approved should be true" topic.approved = "true" # puts "Expecting true" # puts topic.inspect assert topic.approved?, "approved should be true" # puts "" end def test_query_attribute_string [nil, "", " "].each do |value| assert_equal false, Topic.new(:author_name => value).author_name? end assert_equal true, Topic.new(:author_name => "Name").author_name? end def test_query_attribute_number [nil, 0, "0"].each do |value| assert_equal false, Developer.new(:salary => value).salary? end assert_equal true, Developer.new(:salary => 1).salary? assert_equal true, Developer.new(:salary => "1").salary? end def test_query_attribute_boolean [nil, "", false, "false", "f", 0].each do |value| assert_equal false, Topic.new(:approved => value).approved? end [true, "true", "1", 1].each do |value| assert_equal true, Topic.new(:approved => value).approved? end end def test_query_attribute_with_custom_fields object = Company.find_by_sql(<<-SQL).first SELECT c1.*, c2.ruby_type as string_value, c2.rating as int_value FROM companies c1, companies c2 WHERE c1.firm_id = c2.id AND c1.id = 2 SQL assert_equal "Firm", object.string_value assert object.string_value? object.string_value = " " assert !object.string_value? assert_equal 1, object.int_value.to_i assert object.int_value? object.int_value = "0" assert !object.int_value? end def test_non_attribute_access_and_assignment topic = Topic.new assert !topic.respond_to?("mumbo") assert_raise(NoMethodError) { topic.mumbo } assert_raise(NoMethodError) { topic.mumbo = 5 } end def test_undeclared_attribute_method_does_not_affect_respond_to_and_method_missing topic = @target.new(:title => 'Budget') assert topic.respond_to?('title') assert_equal 'Budget', topic.title assert !topic.respond_to?('title_hello_world') assert_raise(NoMethodError) { topic.title_hello_world } end def test_declared_prefixed_attribute_method_affects_respond_to_and_method_missing topic = @target.new(:title => 'Budget') %w(default_ title_).each do |prefix| @target.class_eval "def #{prefix}attribute(*args) args end" @target.attribute_method_prefix prefix meth = "#{prefix}title" assert topic.respond_to?(meth) assert_equal ['title'], topic.send(meth) assert_equal ['title', 'a'], topic.send(meth, 'a') assert_equal ['title', 1, 2, 3], topic.send(meth, 1, 2, 3) end end def test_declared_suffixed_attribute_method_affects_respond_to_and_method_missing topic = @target.new(:title => 'Budget') %w(_default _title_default _it! _candidate= able?).each do |suffix| @target.class_eval "def attribute#{suffix}(*args) args end" @target.attribute_method_suffix suffix meth = "title#{suffix}" assert topic.respond_to?(meth) assert_equal ['title'], topic.send(meth) assert_equal ['title', 'a'], topic.send(meth, 'a') assert_equal ['title', 1, 2, 3], topic.send(meth, 1, 2, 3) end end def test_declared_affixed_attribute_method_affects_respond_to_and_method_missing topic = @target.new(:title => 'Budget') [['mark_', '_for_update'], ['reset_', '!'], ['default_', '_value?']].each do |prefix, suffix| @target.class_eval "def #{prefix}attribute#{suffix}(*args) args end" @target.attribute_method_affix({ :prefix => prefix, :suffix => suffix }) meth = "#{prefix}title#{suffix}" assert topic.respond_to?(meth) assert_equal ['title'], topic.send(meth) assert_equal ['title', 'a'], topic.send(meth, 'a') assert_equal ['title', 1, 2, 3], topic.send(meth, 1, 2, 3) end end def test_should_unserialize_attributes_for_frozen_records myobj = {:value1 => :value2} topic = Topic.create("content" => myobj) topic.freeze assert_equal myobj, topic.content end def test_typecast_attribute_from_select_to_false topic = Topic.create(:title => 'Budget') # Oracle does not support boolean expressions in SELECT if current_adapter?(:OracleAdapter) topic = Topic.find(:first, :select => "topics.*, 0 as is_test") else topic = Topic.find(:first, :select => "topics.*, 1=2 as is_test") end assert !topic.is_test? end def test_typecast_attribute_from_select_to_true topic = Topic.create(:title => 'Budget') # Oracle does not support boolean expressions in SELECT if current_adapter?(:OracleAdapter) topic = Topic.find(:first, :select => "topics.*, 1 as is_test") else topic = Topic.find(:first, :select => "topics.*, 2=2 as is_test") end assert topic.is_test? end def test_kernel_methods_not_implemented_in_activerecord %w(test name display y).each do |method| assert !ActiveRecord::Base.instance_method_already_implemented?(method), "##{method} is defined" end end def test_defined_kernel_methods_implemented_in_model %w(test name display y).each do |method| klass = Class.new ActiveRecord::Base klass.class_eval "def #{method}() 'defined #{method}' end" assert klass.instance_method_already_implemented?(method), "##{method} is not defined" end end def test_defined_kernel_methods_implemented_in_model_abstract_subclass %w(test name display y).each do |method| abstract = Class.new ActiveRecord::Base abstract.class_eval "def #{method}() 'defined #{method}' end" abstract.abstract_class = true klass = Class.new abstract assert klass.instance_method_already_implemented?(method), "##{method} is not defined" end end def test_raises_dangerous_attribute_error_when_defining_activerecord_method_in_model %w(save create_or_update).each do |method| klass = Class.new ActiveRecord::Base klass.class_eval "def #{method}() 'defined #{method}' end" assert_raise ActiveRecord::DangerousAttributeError do klass.instance_method_already_implemented?(method) end end end def test_only_time_related_columns_are_meant_to_be_cached_by_default expected = %w(datetime timestamp time date).sort assert_equal expected, ActiveRecord::Base.attribute_types_cached_by_default.map(&:to_s).sort end def test_declaring_attributes_as_cached_adds_them_to_the_attributes_cached_by_default default_attributes = Topic.cached_attributes Topic.cache_attributes :replies_count expected = default_attributes + ["replies_count"] assert_equal expected.sort, Topic.cached_attributes.sort Topic.instance_variable_set "@cached_attributes", nil end def test_time_related_columns_are_actually_cached column_types = %w(datetime timestamp time date).map(&:to_sym) column_names = Topic.columns.select{|c| column_types.include?(c.type) }.map(&:name) assert_equal column_names.sort, Topic.cached_attributes.sort assert_equal time_related_columns_on_topic.sort, Topic.cached_attributes.sort end def test_accessing_cached_attributes_caches_the_converted_values_and_nothing_else t = topics(:first) cache = t.instance_variable_get "@attributes_cache" assert_not_nil cache assert cache.empty? all_columns = Topic.columns.map(&:name) cached_columns = time_related_columns_on_topic uncached_columns = all_columns - cached_columns all_columns.each do |attr_name| attribute_gets_cached = Topic.cache_attribute?(attr_name) val = t.send attr_name unless attr_name == "type" if attribute_gets_cached assert cached_columns.include?(attr_name) assert_equal val, cache[attr_name] else assert uncached_columns.include?(attr_name) assert !cache.include?(attr_name) end end end def test_time_attributes_are_retrieved_in_current_time_zone in_time_zone "Pacific Time (US & Canada)" do utc_time = Time.utc(2008, 1, 1) record = @target.new record[:written_on] = utc_time assert_equal utc_time, record.written_on # record.written on is equal to (i.e., simultaneous with) utc_time assert_kind_of ActiveSupport::TimeWithZone, record.written_on # but is a TimeWithZone assert_equal ActiveSupport::TimeZone["Pacific Time (US & Canada)"], record.written_on.time_zone # and is in the current Time.zone assert_equal Time.utc(2007, 12, 31, 16), record.written_on.time # and represents time values adjusted accordingly end end def test_setting_time_zone_aware_attribute_to_utc in_time_zone "Pacific Time (US & Canada)" do utc_time = Time.utc(2008, 1, 1) record = @target.new record.written_on = utc_time assert_equal utc_time, record.written_on assert_equal ActiveSupport::TimeZone["Pacific Time (US & Canada)"], record.written_on.time_zone assert_equal Time.utc(2007, 12, 31, 16), record.written_on.time end end def test_setting_time_zone_aware_attribute_in_other_time_zone utc_time = Time.utc(2008, 1, 1) cst_time = utc_time.in_time_zone("Central Time (US & Canada)") in_time_zone "Pacific Time (US & Canada)" do record = @target.new record.written_on = cst_time assert_equal utc_time, record.written_on assert_equal ActiveSupport::TimeZone["Pacific Time (US & Canada)"], record.written_on.time_zone assert_equal Time.utc(2007, 12, 31, 16), record.written_on.time end end def test_setting_time_zone_aware_attribute_with_string utc_time = Time.utc(2008, 1, 1) (-11..13).each do |timezone_offset| time_string = utc_time.in_time_zone(timezone_offset).to_s in_time_zone "Pacific Time (US & Canada)" do record = @target.new record.written_on = time_string assert_equal Time.zone.parse(time_string), record.written_on assert_equal ActiveSupport::TimeZone["Pacific Time (US & Canada)"], record.written_on.time_zone assert_equal Time.utc(2007, 12, 31, 16), record.written_on.time end end end def test_setting_time_zone_aware_attribute_to_blank_string_returns_nil in_time_zone "Pacific Time (US & Canada)" do record = @target.new record.written_on = ' ' assert_nil record.written_on end end def test_setting_time_zone_aware_attribute_interprets_time_zone_unaware_string_in_time_zone time_string = 'Tue Jan 01 00:00:00 2008' (-11..13).each do |timezone_offset| in_time_zone timezone_offset do record = @target.new record.written_on = time_string assert_equal Time.zone.parse(time_string), record.written_on assert_equal ActiveSupport::TimeZone[timezone_offset], record.written_on.time_zone assert_equal Time.utc(2008, 1, 1), record.written_on.time end end end def test_setting_time_zone_aware_attribute_in_current_time_zone utc_time = Time.utc(2008, 1, 1) in_time_zone "Pacific Time (US & Canada)" do record = @target.new record.written_on = utc_time.in_time_zone assert_equal utc_time, record.written_on assert_equal ActiveSupport::TimeZone["Pacific Time (US & Canada)"], record.written_on.time_zone assert_equal Time.utc(2007, 12, 31, 16), record.written_on.time end end def test_setting_time_zone_conversion_for_attributes_should_write_value_on_class_variable Topic.skip_time_zone_conversion_for_attributes = [:field_a] Minimalistic.skip_time_zone_conversion_for_attributes = [:field_b] assert_equal [:field_a], Topic.skip_time_zone_conversion_for_attributes assert_equal [:field_b], Minimalistic.skip_time_zone_conversion_for_attributes end def test_read_attributes_respect_access_control privatize("title") topic = @target.new(:title => "The pros and cons of programming naked.") assert !topic.respond_to?(:title) exception = assert_raise(NoMethodError) { topic.title } assert_equal "Attempt to call private method", exception.message assert_equal "I'm private", topic.send(:title) end def test_write_attributes_respect_access_control privatize("title=(value)") topic = @target.new assert !topic.respond_to?(:title=) exception = assert_raise(NoMethodError) { topic.title = "Pants"} assert_equal "Attempt to call private method", exception.message topic.send(:title=, "Very large pants") end def test_question_attributes_respect_access_control privatize("title?") topic = @target.new(:title => "Isaac Newton's pants") assert !topic.respond_to?(:title?) exception = assert_raise(NoMethodError) { topic.title? } assert_equal "Attempt to call private method", exception.message assert topic.send(:title?) end def test_bulk_update_respects_access_control privatize("title=(value)") assert_raise(ActiveRecord::UnknownAttributeError) { topic = @target.new(:title => "Rants about pants") } assert_raise(ActiveRecord::UnknownAttributeError) { @target.new.attributes = { :title => "Ants in pants" } } end def test_read_attribute_overwrites_private_method_not_considered_implemented # simulate a model with a db column that shares its name an inherited # private method (e.g. Object#system) # Object.class_eval do private def title; "private!"; end end assert !@target.instance_method_already_implemented?(:title) topic = @target.new assert_nil topic.title Object.send(:undef_method, :title) # remove test method from object end private def time_related_columns_on_topic Topic.columns.select{|c| [:time, :date, :datetime, :timestamp].include?(c.type)}.map(&:name) end def in_time_zone(zone) old_zone = Time.zone old_tz = ActiveRecord::Base.time_zone_aware_attributes Time.zone = zone ? ActiveSupport::TimeZone[zone] : nil ActiveRecord::Base.time_zone_aware_attributes = !zone.nil? yield ensure Time.zone = old_zone ActiveRecord::Base.time_zone_aware_attributes = old_tz end def privatize(method_signature) @target.class_eval <<-private_method private def #{method_signature} "I'm private" end private_method end end