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// Copyright (C) 2011 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <util/buffer.h>
#include <dns/exceptions.h>
#include <dns/messagerenderer.h>
#include <dns/rdata.h>
#include <dns/rdataclass.h>
#include <dns/rrclass.h>
#include <dns/rrtype.h>
#include <gtest/gtest.h>
#include <dns/tests/unittest_util.h>
#include <dns/tests/rdata_unittest.h>
#include <util/unittests/wiredata.h>
using namespace std;
using namespace isc::dns;
using namespace isc::util;
using namespace isc::dns::rdata;
using isc::UnitTestUtil;
using isc::util::unittests::matchWireData;
namespace {
class Rdata_SRV_Test : public RdataTest {
public:
Rdata_SRV_Test() :
srv_txt("1 5 1500 a.example.com."),
srv_txt2("1 5 1400 example.com."),
too_long_label("012345678901234567890123456789"
"0123456789012345678901234567890123."),
rdata_srv(srv_txt),
rdata_srv2(srv_txt2)
{}
const string srv_txt;
const string srv_txt2;
const string too_long_label;
const in::SRV rdata_srv;
const in::SRV rdata_srv2;
};
// 1 5 1500 a.example.com.
const uint8_t wiredata_srv[] = {
0x00, 0x01, 0x00, 0x05, 0x05, 0xdc, 0x01, 0x61, 0x07, 0x65, 0x78,
0x61, 0x6d, 0x70, 0x6c, 0x65, 0x03, 0x63, 0x6f, 0x6d, 0x00};
// 1 5 1400 example.com.
const uint8_t wiredata_srv2[] = {
0x00, 0x01, 0x00, 0x05, 0x05, 0x78, 0x07, 0x65, 0x78, 0x61, 0x6d,
0x70, 0x6c, 0x65, 0x03, 0x63, 0x6f, 0x6d, 0x00};
TEST_F(Rdata_SRV_Test, createFromText) {
EXPECT_EQ(1, rdata_srv.getPriority());
EXPECT_EQ(5, rdata_srv.getWeight());
EXPECT_EQ(1500, rdata_srv.getPort());
EXPECT_EQ(Name("a.example.com."), rdata_srv.getTarget());
}
TEST_F(Rdata_SRV_Test, badText) {
// priority is too large (2814...6 is 2^48)
EXPECT_THROW(in::SRV("281474976710656 5 1500 a.example.com."),
InvalidRdataText);
// weight is too large
EXPECT_THROW(in::SRV("1 281474976710656 1500 a.example.com."),
InvalidRdataText);
// port is too large
EXPECT_THROW(in::SRV("1 5 281474976710656 a.example.com."),
InvalidRdataText);
// incomplete text
EXPECT_THROW(in::SRV("1 5 a.example.com."),
InvalidRdataText);
EXPECT_THROW(in::SRV("1 5 1500a.example.com."),
InvalidRdataText);
// bad name
EXPECT_THROW(in::SRV("1 5 1500 a.example.com." + too_long_label),
TooLongLabel);
// Extra text at end of line
EXPECT_THROW(in::SRV("1 5 1500 a.example.com. extra."), InvalidRdataText);
}
TEST_F(Rdata_SRV_Test, assignment) {
in::SRV copy((string(srv_txt2)));
copy = rdata_srv;
EXPECT_EQ(0, copy.compare(rdata_srv));
// Check if the copied data is valid even after the original is deleted
in::SRV* copy2 = new in::SRV(rdata_srv);
in::SRV copy3((string(srv_txt2)));
copy3 = *copy2;
delete copy2;
EXPECT_EQ(0, copy3.compare(rdata_srv));
// Self assignment
copy = copy;
EXPECT_EQ(0, copy.compare(rdata_srv));
}
TEST_F(Rdata_SRV_Test, createFromWire) {
EXPECT_EQ(0, rdata_srv.compare(
*rdataFactoryFromFile(RRType("SRV"), RRClass("IN"),
"rdata_srv_fromWire")));
// RDLENGTH is too short
EXPECT_THROW(rdataFactoryFromFile(RRType("SRV"), RRClass("IN"),
"rdata_srv_fromWire", 23),
InvalidRdataLength);
// RDLENGTH is too long
EXPECT_THROW(rdataFactoryFromFile(RRType("SRV"), RRClass("IN"),
"rdata_srv_fromWire", 46),
InvalidRdataLength);
// incomplete name. the error should be detected in the name constructor
EXPECT_THROW(rdataFactoryFromFile(RRType("SRV"), RRClass("IN"),
"rdata_cname_fromWire", 69),
DNSMessageFORMERR);
// parse compressed target name
EXPECT_EQ(0, rdata_srv.compare(
*rdataFactoryFromFile(RRType("SRV"), RRClass("IN"),
"rdata_srv_fromWire", 89)));
}
TEST_F(Rdata_SRV_Test, createFromLexer) {
EXPECT_EQ(0, rdata_srv.compare(
*test::createRdataUsingLexer(RRType::SRV(), RRClass::IN(),
"1 5 1500 a.example.com.")));
// test::createRdataUsingLexer() constructs relative to
// "example.org." origin.
EXPECT_EQ(0, in::SRV("1 5 1500 server16.example.org.").compare(
*test::createRdataUsingLexer(RRType::SRV(), RRClass::IN(),
"1 5 1500 server16")));
// Exceptions cause NULL to be returned.
// Bad priority
EXPECT_FALSE(test::createRdataUsingLexer(RRType::SRV(), RRClass::IN(),
"65536 5 1500 "
"a.example.com."));
// Bad weight
EXPECT_FALSE(test::createRdataUsingLexer(RRType::SRV(), RRClass::IN(),
"1 65536 1500 "
"a.example.com."));
// Bad port
EXPECT_FALSE(test::createRdataUsingLexer(RRType::SRV(), RRClass::IN(),
"1 5 281474976710656 "
"a.example.com."));
// Extra text at end of line
EXPECT_FALSE(test::createRdataUsingLexer(RRType::SRV(), RRClass::IN(),
"1 5 1500 a.example.com. extra."));
}
TEST_F(Rdata_SRV_Test, toWireBuffer) {
rdata_srv.toWire(obuffer);
matchWireData(wiredata_srv, sizeof(wiredata_srv),
obuffer.getData(), obuffer.getLength());
obuffer.clear();
rdata_srv2.toWire(obuffer);
matchWireData(wiredata_srv2, sizeof(wiredata_srv2),
obuffer.getData(), obuffer.getLength());
}
TEST_F(Rdata_SRV_Test, toWireRenderer) {
rdata_srv.toWire(renderer);
matchWireData(wiredata_srv, sizeof(wiredata_srv),
renderer.getData(), renderer.getLength());
renderer.clear();
rdata_srv2.toWire(renderer);
matchWireData(wiredata_srv2, sizeof(wiredata_srv2),
renderer.getData(), renderer.getLength());
}
TEST_F(Rdata_SRV_Test, toText) {
EXPECT_EQ(srv_txt, rdata_srv.toText());
EXPECT_EQ(srv_txt2, rdata_srv2.toText());
}
TEST_F(Rdata_SRV_Test, compare) {
// test RDATAs, sorted in the ascendent order.
vector<in::SRV> compare_set;
compare_set.push_back(in::SRV("1 5 1500 a.example.com."));
compare_set.push_back(in::SRV("2 5 1500 a.example.com."));
compare_set.push_back(in::SRV("2 6 1500 a.example.com."));
compare_set.push_back(in::SRV("2 6 1600 a.example.com."));
compare_set.push_back(in::SRV("2 6 1600 example.com."));
EXPECT_EQ(0, compare_set[0].compare(
in::SRV("1 5 1500 a.example.com.")));
vector<in::SRV>::const_iterator it;
vector<in::SRV>::const_iterator it_end = compare_set.end();
for (it = compare_set.begin(); it != it_end - 1; ++it) {
EXPECT_GT(0, (*it).compare(*(it + 1)));
EXPECT_LT(0, (*(it + 1)).compare(*it));
}
// comparison attempt between incompatible RR types should be rejected
EXPECT_THROW(rdata_srv.compare(*RdataTest::rdata_nomatch), bad_cast);
}
}
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