test/resolv/test_addr.rb

   1 # frozen_string_literal: false
   2 require 'test/unit'
   3 require 'resolv'
   4 require 'socket'
   5 require 'tempfile'
   6
   7 class TestResolvAddr < Test::Unit::TestCase
   8   def test_invalid_ipv4_address
   9     assert_not_match(Resolv::IPv4::Regex, "1.2.3.256", "[ruby-core:29501]")
  10     1000.times {|i|
  11       if i < 256
  12         assert_match(Resolv::IPv4::Regex, "#{i}.#{i}.#{i}.#{i}")
  13       else
  14         assert_not_match(Resolv::IPv4::Regex, "#{i}.#{i}.#{i}.#{i}")
  15       end
  16     }
  17   end
  18
  19   def test_valid_ipv6_link_local_address
  20     bug17112 = "[ruby-core:99539]"
  21     assert_not_match(Resolv::IPv6::Regex, "fe80::1%", bug17112)
  22     assert_not_match(Resolv::IPv6::Regex, "fe80:2:3:4:5:6:7:8%", bug17112)
  23     assert_not_match(Resolv::IPv6::Regex, "fe90::1%em1", bug17112)
  24     assert_not_match(Resolv::IPv6::Regex, "1:2:3:4:5:6:7:8%em1", bug17112)
  25     assert_match(Resolv::IPv6::Regex, "fe80:2:3:4:5:6:7:8%em1", bug17112)
  26     assert_match(Resolv::IPv6::Regex, "fe80::20d:3aff:fe7d:9760%eth0", bug17112)
  27     assert_match(Resolv::IPv6::Regex, "fe80::1%em1", bug17112)
  28     assert_match(Resolv::IPv6::Regex, "FE80:2:3:4:5:6:7:8%EM1", bug17112)
  29     assert_match(Resolv::IPv6::Regex, "FE80::20D:3AFF:FE7D:9760%ETH0", bug17112)
  30     assert_match(Resolv::IPv6::Regex, "FE80::1%EM1", bug17112)
  31
  32     bug17524 = "[ruby-core:101992]"
  33     assert_match(Resolv::IPv6::Regex, "FE80::20D:3AFF:FE7D:9760%ruby_3.0.0-1", bug17524)
  34     assert_match(Resolv::IPv6::Regex, "fe80::1%ruby_3.0.0-1", bug17524)
  35   end
  36
  37   def test_valid_socket_ip_address_list
  38     Socket.ip_address_list.each do |addr|
  39       ip = addr.ip_address
  40       assert_match(Resolv::AddressRegex, ip)
  41       assert_equal(ip, Resolv.getaddress(ip))
  42     end
  43   end
  44
  45   def test_invalid_byte_comment
  46     bug9273 = '[ruby-core:59239] [Bug #9273]'
  47     Tempfile.create('resolv_test_addr_') do |tmpfile|
  48       tmpfile.print("\xff\x00\x40")
  49       tmpfile.close
  50       hosts = Resolv::Hosts.new(tmpfile.path)
  51       assert_nothing_raised(ArgumentError, bug9273) do
  52         hosts.each_address("") {break}
  53       end
  54     end
  55   end
  56
  57   def test_hosts_by_command
  58     Dir.mktmpdir do |dir|
  59       Dir.chdir(dir) do
  60         hosts = Resolv::Hosts.new("|echo error")
  61         assert_raise(Errno::ENOENT, Errno::EINVAL) do
  62           hosts.each_name("") {}
  63         end
  64       end
  65     end
  66   end
  67 end