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-rw-r--r--activerecord/test/cases/relations_test.rb7
1 files changed, 7 insertions, 0 deletions
diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb
index 0ab0459c38..857d743605 100644
--- a/activerecord/test/cases/relations_test.rb
+++ b/activerecord/test/cases/relations_test.rb
@@ -14,6 +14,7 @@ require "models/person"
require "models/computer"
require "models/reply"
require "models/company"
+require "models/contract"
require "models/bird"
require "models/car"
require "models/engine"
@@ -1815,6 +1816,12 @@ class RelationTest < ActiveRecord::TestCase
assert_equal [1, 1, 1], posts.map(&:author_address_id)
end
+ test "joins with select custom attribute" do
+ contract = Company.create!(name: "test").contracts.create!
+ company = Company.joins(:contracts).select(:id, :metadata).find(contract.company_id)
+ assert_equal contract.metadata, company.metadata
+ end
+
test "delegations do not leak to other classes" do
Topic.all.by_lifo
assert Topic.all.class.method_defined?(:by_lifo)