diff options
Diffstat (limited to 'activerecord/test/attribute_methods_test.rb')
-rwxr-xr-x | activerecord/test/attribute_methods_test.rb | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/activerecord/test/attribute_methods_test.rb b/activerecord/test/attribute_methods_test.rb index f16b264c35..8646afdcb5 100755 --- a/activerecord/test/attribute_methods_test.rb +++ b/activerecord/test/attribute_methods_test.rb @@ -2,6 +2,7 @@ require 'abstract_unit' require 'fixtures/topic' class AttributeMethodsTest < Test::Unit::TestCase + fixtures :topics def setup @old_suffixes = ActiveRecord::Base.send(:attribute_method_suffixes).dup @target = Class.new(ActiveRecord::Base) @@ -92,4 +93,54 @@ class AttributeMethodsTest < Test::Unit::TestCase 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 + + private + def time_related_columns_on_topic + Topic.columns.select{|c| [:time, :date, :datetime, :timestamp].include?(c.type)}.map(&:name) + end end |