[ruby/net-http] Split test class because TCPServer couldn't accept localhost and 127.0.0.1 both
https://github.com/ruby/net-http/commit/749a1b3197
[ruby/net-http] Split test class because TCPServer couldn't accept localhost and 127.0.0.1 both
https://github.com/ruby/net-http/commit/749a1b3197