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-rw-r--r--activerecord/test/cases/associations/inner_join_association_test.rb20
1 files changed, 20 insertions, 0 deletions
diff --git a/activerecord/test/cases/associations/inner_join_association_test.rb b/activerecord/test/cases/associations/inner_join_association_test.rb
index ddf5bc6f0b..7be875fec6 100644
--- a/activerecord/test/cases/associations/inner_join_association_test.rb
+++ b/activerecord/test/cases/associations/inner_join_association_test.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
require "cases/helper"
require "models/post"
require "models/comment"
@@ -25,6 +27,24 @@ class InnerJoinAssociationTest < ActiveRecord::TestCase
end
end
+ def test_construct_finder_sql_does_not_table_name_collide_on_duplicate_associations_with_left_outer_joins
+ sql = Person.joins(agents: :agents).left_outer_joins(agents: :agents).to_sql
+ assert_match(/agents_people_4/i, sql)
+ end
+
+ def test_construct_finder_sql_does_not_table_name_collide_with_string_joins
+ sql = Person.joins(:agents).joins("JOIN people agents_people ON agents_people.primary_contact_id = people.id").to_sql
+ assert_match(/agents_people_2/i, sql)
+ end
+
+ def test_construct_finder_sql_does_not_table_name_collide_with_aliased_joins
+ people = Person.arel_table
+ agents = people.alias("agents_people")
+ constraint = agents[:primary_contact_id].eq(people[:id])
+ sql = Person.joins(:agents).joins(agents.create_join(agents, agents.create_on(constraint))).to_sql
+ assert_match(/agents_people_2/i, sql)
+ end
+
def test_construct_finder_sql_ignores_empty_joins_hash
sql = Author.joins({}).to_sql
assert_no_match(/JOIN/i, sql)