diff options
Diffstat (limited to 'activerecord/test/cases/relation/delegation_test.rb')
-rw-r--r-- | activerecord/test/cases/relation/delegation_test.rb | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/activerecord/test/cases/relation/delegation_test.rb b/activerecord/test/cases/relation/delegation_test.rb new file mode 100644 index 0000000000..9b2bfed039 --- /dev/null +++ b/activerecord/test/cases/relation/delegation_test.rb @@ -0,0 +1,68 @@ +require 'cases/helper' +require 'models/post' +require 'models/comment' + +module ActiveRecord + class DelegationTest < ActiveRecord::TestCase + fixtures :posts + + def call_method(target, method) + method_arity = target.to_a.method(method).arity + + if method_arity.zero? + target.public_send(method) + elsif method_arity < 0 + if method == :shuffle! + target.public_send(method) + else + target.public_send(method, 1) + end + elsif method_arity == 1 + target.public_send(method, 1) + else + raise NotImplementedError + end + end + end + + module DelegationWhitelistBlacklistTests + ARRAY_DELEGATES = [ + :+, :-, :|, :&, :[], + :all?, :collect, :detect, :each, :each_cons, :each_with_index, + :exclude?, :find_all, :flat_map, :group_by, :include?, :length, + :map, :none?, :one?, :partition, :reject, :reverse, + :sample, :second, :sort, :sort_by, :third, + :to_ary, :to_set, :to_xml, :to_yaml + ] + + ARRAY_DELEGATES.each do |method| + define_method "test_delegates_#{method}_to_Array" do + assert_respond_to target, method + end + end + + ActiveRecord::Delegation::BLACKLISTED_ARRAY_METHODS.each do |method| + define_method "test_#{method}_is_not_delegated_to_Array" do + assert_raises(NoMethodError) { call_method(target, method) } + end + end + end + + class DelegationAssociationTest < DelegationTest + include DelegationWhitelistBlacklistTests + + def target + Post.first.comments + end + end + + class DelegationRelationTest < DelegationTest + include DelegationWhitelistBlacklistTests + + fixtures :comments + + def target + Comment.all + end + end +end |