unless SocketTest.win? assert('Socket.gethostname') do assert_true(Socket.gethostname.is_a? String) end assert('Socket::getaddrinfo') do ret = Socket.getaddrinfo("localhost", 53, Socket::AF_INET, Socket::SOCK_DGRAM) assert_true ret.size >= 1 a = ret[0] assert_equal "AF_INET", a[0] assert_equal 53, a[1] # documents says it's a hostname but CRuby returns an address #assert_equal "127.0.0.1", a[2] assert_equal "127.0.0.1", a[3] assert_equal Socket::AF_INET, a[4] assert_equal Socket::SOCK_DGRAM, a[5] assert_equal Socket::IPPROTO_UDP, a[6] unless SocketTest.cygwin? end assert('Socket#recvfrom') do begin sstr = "abcdefg" s = Socket.new(Socket::AF_INET, Socket::SOCK_DGRAM, 0) c = Socket.new(Socket::AF_INET, Socket::SOCK_DGRAM, 0) s.bind(Socket.sockaddr_in(0, "127.0.0.1")) c.send sstr, 0, s.getsockname rstr, ai = s.recvfrom sstr.size assert_equal sstr, rstr assert_equal "127.0.0.1", ai.ip_address ensure s.close rescue nil c.close rescue nil end end end # win?