1 files changed, 8 insertions, 0 deletions
diff --git a/activerecord/test/cases/adapters/postgresql/datatype_test.rb b/activerecord/test/cases/adapters/postgresql/datatype_test.rb
index 04a458fbce..5c3a797c41 100644
--- a/activerecord/test/cases/adapters/postgresql/datatype_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/datatype_test.rb
@@ -78,6 +78,14 @@ class PostgresqlDataTypeTest < ActiveRecord::TestCase
      PostgresqlBitString, PostgresqlOid, PostgresqlTimestampWithZone, PostgresqlUUID].each(&:delete_all)
   end
 
+  def test_array_escaping
+    unknown = %(foo\\",bar,baz,\\)
+    nicknames = ["hello_#{unknown}"]
+    ar = PostgresqlArray.create!(nicknames: nicknames, id: 100)
+    ar.reload
+    assert_equal nicknames, ar.nicknames
+  end
+
   def test_data_type_of_array_types
     assert_equal :integer, @first_array.column_for_attribute(:commission_by_quarter).type
     assert_equal :text, @first_array.column_for_attribute(:nicknames).type