require_relative "utils" if defined?(OpenSSL::TestUtils) class OpenSSL::TestPartialRecordRead < OpenSSL::SSLTestCase def test_partial_tls_record_read_nonblock start_server(OpenSSL::SSL::VERIFY_NONE, true, :server_proc => Proc.new do |server_ctx, server_ssl| begin server_ssl.io.write("\x01") # the beginning of a TLS record sleep 6 # do not finish prematurely before the read by the client is attempted ensure server_ssl.close end end ) do |server, port| sock = TCPSocket.new("127.0.0.1", port) ssl = OpenSSL::SSL::SSLSocket.new(sock) ssl.sync_close = true begin ssl.connect sleep 3 # wait is required for the (incomplete) TLS record to arrive at the client socket # Should raise a IO::WaitReadable since a full TLS record is not available for reading. assert_raise(IO::WaitReadable) { ssl.read_nonblock(1) } ensure ssl.close end end end end end