refactor(test): ensure tables are always unlogged

test/cases/create_unlogged_tables_test.rb

@@ -11,7 +11,6 @@
 module ActiveRecord
   module CockroachDB
     class UnloggedTablesTest < ActiveRecord::PostgreSQLTestCase
-      include SchemaDumpingHelper
 
       TABLE_NAME = "things"
       LOGGED_FIELD = "relpersistence"
@@ -24,24 +23,18 @@ class Thing < ActiveRecord::Base
         self.table_name = TABLE_NAME
       end
 
-      def setup
-        @connection = ActiveRecord::Base.lease_connection
-        ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.create_unlogged_tables = false
-      end
-
-      teardown do
-        @connection.drop_table TABLE_NAME, if_exists: true
-        ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.create_unlogged_tables = false
-      end
-
       # Cockroachdb ignores the UNLOGGED specifier.
       # https://github.com/cockroachdb/cockroach/issues/56827
       def test_unlogged_in_test_environment_when_unlogged_setting_enabled
+        @original_create_unlogged_tables = ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.create_unlogged_tables
         ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.create_unlogged_tables = true
+        connection = ActiveRecord::Base.lease_connection
 
-        @connection.create_table(TABLE_NAME) do |t|
+        connection.create_table(TABLE_NAME) do |t|
         end
-        assert_equal @connection.execute(LOGGED_QUERY).first[LOGGED_FIELD], LOGGED
+        assert_equal connection.execute(LOGGED_QUERY).first[LOGGED_FIELD], LOGGED
+      ensure
+        ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.create_unlogged_tables = @original_create_unlogged_tables
       end
     end
   end