instance method _assert_nothing_raised_or_warn

# File activesupport/lib/active_support/testing/assertions.rb, line 265
        def _assert_nothing_raised_or_warn(assertion, &block)
          assert_nothing_raised(&block)
        rescue Minitest::UnexpectedError => e
          if tagged_logger && tagged_logger.warn?
            warning = <<~MSG
              #{self.class} - #{name}: #{e.error.class} raised.
              If you expected this exception, use `assert_raises` as near to the code that raises as possible.
              Other block based assertions (e.g. `#{assertion}`) can be used, as long as `assert_raises` is inside their block.
            MSG
            tagged_logger.warn warning
          end

          raise
        end