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-rw-r--r--activerecord/test/support/connection_helper.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/activerecord/test/support/connection_helper.rb b/activerecord/test/support/connection_helper.rb
index 4a19e5df44..3bb1b370c1 100644
--- a/activerecord/test/support/connection_helper.rb
+++ b/activerecord/test/support/connection_helper.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
module ConnectionHelper
def run_without_connection
original_connection = ActiveRecord::Base.remove_connection