-require "cases/helper"
-require 'models/topic'
-require 'models/minimalistic'
-
-class AttributeMethodsTest < ActiveRecord::TestCase
- fixtures :topics
- def setup
- @old_suffixes = ActiveRecord::Base.send(:attribute_method_suffixes).dup
- @target = Class.new(ActiveRecord::Base)
- @target.table_name = 'topics'
- end
-
- def teardown
- ActiveRecord::Base.send(:attribute_method_suffixes).clear
- ActiveRecord::Base.attribute_method_suffix *@old_suffixes
- end
-
- def test_match_attribute_method_query_returns_match_data
- assert_not_nil md = @target.match_attribute_method?('title=')
- assert_equal 'title', md.pre_match
- assert_equal ['='], md.captures
-
- %w(_hello_world ist! _maybe?).each do |suffix|
- @target.class_eval "def attribute#{suffix}(*args) args end"
- @target.attribute_method_suffix suffix
-
- assert_not_nil md = @target.match_attribute_method?("title#{suffix}")
- assert_equal 'title', md.pre_match
- assert_equal [suffix], md.captures
- end
- end
-
- def test_declared_attribute_method_affects_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 }
-
- %w(_hello_world _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_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')
- topic = Topic.find(:first, :select => "topics.*, 1=2 as is_test")
- assert !topic.is_test?
- end
-
- def test_typecast_attribute_from_select_to_true
- topic = Topic.create(:title => 'Budget')
- topic = Topic.find(:first, :select => "topics.*, 2=2 as is_test")
- 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_primary_key_implemented
- assert Class.new(ActiveRecord::Base).instance_method_already_implemented?('id')
- 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
-
- 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