monero/tests/unit_tests/dns_resolver.cpp

// Copyright (c) 2014, The Monero Project
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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#include <iostream>
#include <vector>

#include "gtest/gtest.h"

#include "common/dns_utils.h"

TEST(DNSResolver, IPv4Success)
{
  tools::DNSResolver resolver;

  bool avail, valid;

  auto ips = resolver.get_ipv4("example.com", avail, valid);

  ASSERT_EQ(1, ips.size());

  ASSERT_STREQ("93.184.216.119", ips[0].c_str());

  ips = tools::DNSResolver::instance().get_ipv4("example.com", avail, valid);

  ASSERT_EQ(1, ips.size());

  ASSERT_STREQ("93.184.216.119", ips[0].c_str());
}

TEST(DNSResolver, IPv4Failure)
{
  // guaranteed by IANA/ICANN/RFC to be invalid
  tools::DNSResolver resolver;

  bool avail, valid;

  auto ips = resolver.get_ipv4("example.invalid", avail, valid);

  ASSERT_EQ(0, ips.size());

  ips = tools::DNSResolver::instance().get_ipv4("example.invalid", avail, valid);

  ASSERT_EQ(0, ips.size());
}

// It would be great to include an IPv6 test and assume it'll pass, but not every ISP / resolver plays nicely with IPv6;)
/*TEST(DNSResolver, IPv6Success)
{
  tools::DNSResolver resolver;

  bool avail, valid;

  auto ips = resolver.get_ipv6("example.com", avail, valid);

  ASSERT_EQ(1, ips.size());

  ASSERT_STREQ("2606:2800:220:6d:26bf:1447:1097:aa7", ips[0].c_str());

  ips = tools::DNSResolver::instance().get_ipv6("example.com", avail, valid);

  ASSERT_EQ(1, ips.size());

  ASSERT_STREQ("2606:2800:220:6d:26bf:1447:1097:aa7", ips[0].c_str());
}*/

TEST(DNSResolver, IPv6Failure)
{
  // guaranteed by IANA/ICANN/RFC to be invalid
  tools::DNSResolver resolver;

  bool avail, valid;

  auto ips = resolver.get_ipv6("example.invalid", avail, valid);

  ASSERT_EQ(0, ips.size());

  ips = tools::DNSResolver::instance().get_ipv6("example.invalid", avail, valid);

  ASSERT_EQ(0, ips.size());
}

TEST(DNSResolver, GetTXTRecord)
{
  bool avail, valid;

  std::vector<std::string> records = tools::DNSResolver::instance().get_txt_record("donate.monero.cc", avail, valid);

  EXPECT_NE(0, records.size());

  for (auto& rec : records)
  {
    std::cout << "TXT record for donate.monero.cc: " << rec << std::endl;
  }
}