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-rw-r--r--activerecord/test/cases/migration/references_foreign_key_test.rb16
1 files changed, 16 insertions, 0 deletions
diff --git a/activerecord/test/cases/migration/references_foreign_key_test.rb b/activerecord/test/cases/migration/references_foreign_key_test.rb
index 9418995ea0..f1ddac1ee2 100644
--- a/activerecord/test/cases/migration/references_foreign_key_test.rb
+++ b/activerecord/test/cases/migration/references_foreign_key_test.rb
@@ -203,6 +203,22 @@ if ActiveRecord::Base.connection.supports_foreign_keys?
assert_equal([["testings", "testing_parents", "parent1_id"],
["testings", "testing_parents", "parent2_id"]], fk_definitions)
end
+
+ test "multiple foreign keys can be removed to the selected one" do
+ @connection.create_table :testings do |t|
+ t.references :parent1, foreign_key: { to_table: :testing_parents }
+ t.references :parent2, foreign_key: { to_table: :testing_parents }
+ end
+
+ assert_difference "@connection.foreign_keys('testings').size", -1 do
+ @connection.remove_reference :testings, :parent1, foreign_key: { to_table: :testing_parents }
+ end
+
+ fks = @connection.foreign_keys("testings").sort_by(&:column)
+
+ fk_definitions = fks.map { |fk| [fk.from_table, fk.to_table, fk.column] }
+ assert_equal([["testings", "testing_parents", "parent2_id"]], fk_definitions)
+ end
end
end
end