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Commit a65cd277 authored by Hungming Chen's avatar Hungming Chen
Browse files

[DS#2] add test GetAddrInfo_Dns64Canonname 

Test canonname, if any, is not broken after DNS64 synthesized.

Bug: 159305929
Test: atest ResolverTest
Change-Id: I1a7c118bc182083714f99454c6afa33a7c2ce7c5
parent b5575664

tests/resolv_integration_test.cpp

+51 −0
Original line number Diff line number Diff line
@@ -3099,6 +3099,57 @@ TEST_F(ResolverTest, GetAddrInfo_Dns64Synthesize) { 
    EXPECT_EQ(ToString(result), "1.2.3.4");

}



TEST_F(ResolverTest, GetAddrInfo_Dns64Canonname) {

    constexpr char listen_addr[] = "::1";

    constexpr char dns64_name[] = "ipv4only.arpa.";

    constexpr char host_name[] = "v4only.example.com.";

    const std::vector<DnsRecord> records = {

            {dns64_name, ns_type::ns_t_aaaa, "64:ff9b::192.0.0.170"},

            {host_name, ns_type::ns_t_a, "1.2.3.4"},

    };



    test::DNSResponder dns(listen_addr);

    StartDns(dns, records);



    std::vector<std::string> servers = {listen_addr};

    ASSERT_TRUE(mDnsClient.SetResolversForNetwork(servers));



    // Start NAT64 prefix discovery and wait for it to complete.

    EXPECT_TRUE(mDnsClient.resolvService()->startPrefix64Discovery(TEST_NETID).isOk());

    EXPECT_TRUE(WaitForNat64Prefix(EXPECT_FOUND));



    // clang-format off

    static const struct TestConfig {

        int family;

        int flags;

        std::vector<std::string> expectedAddresses;

        const char* expectedCanonname;



        std::string asParameters() const {

            return fmt::format("family={}, flags={}", family, flags);

        }

    } testConfigs[]{

        {AF_UNSPEC,            0, {"64:ff9b::102:304"}, nullptr},

        {AF_UNSPEC, AI_CANONNAME, {"64:ff9b::102:304"}, "v4only.example.com"},

        {AF_INET6,             0, {"64:ff9b::102:304"}, nullptr},

        {AF_INET6,  AI_CANONNAME, {"64:ff9b::102:304"}, "v4only.example.com"},

    };

    // clang-format on



    for (const auto& config : testConfigs) {

        SCOPED_TRACE(config.asParameters());



        const addrinfo hints = {

                .ai_family = config.family, .ai_flags = config.flags, .ai_socktype = SOCK_DGRAM};

        ScopedAddrinfo result = safe_getaddrinfo("v4only", nullptr, &hints);

        ASSERT_TRUE(result != nullptr);

        EXPECT_EQ(ToString(result), "64:ff9b::102:304");

        const auto* ai = result.get();

        ASSERT_TRUE(ai != nullptr);

        EXPECT_STREQ(ai->ai_canonname, config.expectedCanonname);

    }

}



TEST_F(ResolverTest, GetAddrInfo_Dns64QuerySpecified) {

    constexpr char listen_addr[] = "::1";

    constexpr char dns64_name[] = "ipv4only.arpa.";