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// Copyright (C) 2011-2019 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 <config.h>
#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;
const char* const afsdb_text = "1 afsdb.example.com.";
const char* const afsdb_text2 = "0 root.example.com.";
const char* const too_long_label("012345678901234567890123456789"
"0123456789012345678901234567890123.");
namespace {
class Rdata_AFSDB_Test : public RdataTest {
protected:
Rdata_AFSDB_Test() :
rdata_afsdb(string(afsdb_text)), rdata_afsdb2(string(afsdb_text2))
{}
const generic::AFSDB rdata_afsdb;
const generic::AFSDB rdata_afsdb2;
vector<uint8_t> expected_wire;
};
TEST_F(Rdata_AFSDB_Test, createFromText) {
EXPECT_EQ(1, rdata_afsdb.getSubtype());
EXPECT_EQ(Name("afsdb.example.com."), rdata_afsdb.getServer());
EXPECT_EQ(0, rdata_afsdb2.getSubtype());
EXPECT_EQ(Name("root.example.com."), rdata_afsdb2.getServer());
}
TEST_F(Rdata_AFSDB_Test, badText) {
// subtype is too large
EXPECT_THROW(const generic::AFSDB rdata_afsdb("99999999 afsdb.example.com."),
InvalidRdataText);
// incomplete text
EXPECT_THROW(const generic::AFSDB rdata_afsdb("10"), InvalidRdataText);
EXPECT_THROW(const generic::AFSDB rdata_afsdb("SPOON"), InvalidRdataText);
EXPECT_THROW(const generic::AFSDB rdata_afsdb("1root.example.com."), InvalidRdataText);
// number of fields (must be 2) is incorrect
EXPECT_THROW(const generic::AFSDB rdata_afsdb("10 afsdb. example.com."),
InvalidRdataText);
// No origin and relative
EXPECT_THROW(const generic::AFSDB rdata_afsdb("1 afsdb.example.com"),
MissingNameOrigin);
// bad name
EXPECT_THROW(const generic::AFSDB rdata_afsdb("1 afsdb.example.com." +
string(too_long_label)), TooLongLabel);
}
TEST_F(Rdata_AFSDB_Test, copy) {
const generic::AFSDB rdata_afsdb2(rdata_afsdb);
EXPECT_EQ(0, rdata_afsdb.compare(rdata_afsdb2));
}
TEST_F(Rdata_AFSDB_Test, assignment) {
generic::AFSDB copy((string(afsdb_text2)));
copy = rdata_afsdb;
EXPECT_EQ(0, copy.compare(rdata_afsdb));
// Check if the copied data is valid even after the original is deleted
generic::AFSDB* copy2 = new generic::AFSDB(rdata_afsdb);
generic::AFSDB copy3((string(afsdb_text2)));
copy3 = *copy2;
delete copy2;
EXPECT_EQ(0, copy3.compare(rdata_afsdb));
// Self assignment
copy = *©
EXPECT_EQ(0, copy.compare(rdata_afsdb));
}
TEST_F(Rdata_AFSDB_Test, createFromWire) {
// uncompressed names
EXPECT_EQ(0, rdata_afsdb.compare(
*rdataFactoryFromFile(RRType::AFSDB(), RRClass::IN(),
"rdata_afsdb_fromWire1.wire")));
// compressed name
EXPECT_EQ(0, rdata_afsdb.compare(
*rdataFactoryFromFile(RRType::AFSDB(), RRClass::IN(),
"rdata_afsdb_fromWire2.wire", 13)));
// RDLENGTH is too short
EXPECT_THROW(rdataFactoryFromFile(RRType::AFSDB(), RRClass::IN(),
"rdata_afsdb_fromWire3.wire"),
InvalidRdataLength);
// RDLENGTH is too long
EXPECT_THROW(rdataFactoryFromFile(RRType::AFSDB(), RRClass::IN(),
"rdata_afsdb_fromWire4.wire"),
InvalidRdataLength);
// bogus server name, the error should be detected in the name
// constructor
EXPECT_THROW(rdataFactoryFromFile(RRType::AFSDB(), RRClass::IN(),
"rdata_afsdb_fromWire5.wire"),
DNSMessageFORMERR);
}
TEST_F(Rdata_AFSDB_Test, createFromLexer) {
EXPECT_EQ(0, rdata_afsdb.compare(
*test::createRdataUsingLexer(RRType::AFSDB(), RRClass::IN(),
afsdb_text)));
// test::createRdataUsingLexer() constructs relative to
// "example.org." origin.
generic::AFSDB tmp = generic::AFSDB("1 afsdb2.example.org.");
EXPECT_EQ(0, tmp.compare(
*test::createRdataUsingLexer(RRType::AFSDB(), RRClass::IN(),
"1 afsdb2")));
// Exceptions cause NULL to be returned.
EXPECT_FALSE(test::createRdataUsingLexer(RRType::AFSDB(), RRClass::IN(),
"1root.example.com."));
// 65536 is larger than maximum possible subtype
EXPECT_FALSE(test::createRdataUsingLexer(RRType::AFSDB(), RRClass::IN(),
"65536 afsdb.example.com."));
// Extra text at end of line
EXPECT_FALSE(test::createRdataUsingLexer(RRType::AFSDB(), RRClass::IN(),
"1 afsdb.example.com. extra."));
}
TEST_F(Rdata_AFSDB_Test, toWireBuffer) {
// construct actual data
rdata_afsdb.toWire(obuffer);
// construct expected data
UnitTestUtil::readWireData("rdata_afsdb_toWire1.wire", expected_wire);
// then compare them
matchWireData(&expected_wire[0], expected_wire.size(),
obuffer.getData(), obuffer.getLength());
// clear buffer for the next test
obuffer.clear();
// construct actual data
Name("example.com.").toWire(obuffer);
rdata_afsdb2.toWire(obuffer);
// construct expected data
UnitTestUtil::readWireData("rdata_afsdb_toWire2.wire", expected_wire);
// then compare them
matchWireData(&expected_wire[0], expected_wire.size(),
obuffer.getData(), obuffer.getLength());
}
TEST_F(Rdata_AFSDB_Test, toWireRenderer) {
// similar to toWireBuffer, but names in RDATA could be compressed due to
// preceding names. Actually they must not be compressed according to
// RFC3597, and this test checks that.
// construct actual data
rdata_afsdb.toWire(renderer);
// construct expected data
UnitTestUtil::readWireData("rdata_afsdb_toWire1.wire", expected_wire);
// then compare them
matchWireData(&expected_wire[0], expected_wire.size(),
renderer.getData(), renderer.getLength());
// clear renderer for the next test
renderer.clear();
// construct actual data
renderer.writeName(Name("example.com."));
rdata_afsdb2.toWire(renderer);
// construct expected data
UnitTestUtil::readWireData("rdata_afsdb_toWire2.wire", expected_wire);
// then compare them
matchWireData(&expected_wire[0], expected_wire.size(),
renderer.getData(), renderer.getLength());
}
TEST_F(Rdata_AFSDB_Test, toText) {
EXPECT_EQ(afsdb_text, rdata_afsdb.toText());
EXPECT_EQ(afsdb_text2, rdata_afsdb2.toText());
}
TEST_F(Rdata_AFSDB_Test, compare) {
// check reflexivity
EXPECT_EQ(0, rdata_afsdb.compare(rdata_afsdb));
// name must be compared in case-insensitive manner
EXPECT_EQ(0, rdata_afsdb.compare(generic::AFSDB("1 "
"AFSDB.example.com.")));
const generic::AFSDB small1("10 afsdb.example.com.");
const generic::AFSDB large1("65535 afsdb.example.com.");
const generic::AFSDB large2("256 afsdb.example.com.");
// confirm these are compared as unsigned values
EXPECT_GT(0, rdata_afsdb.compare(large1));
EXPECT_LT(0, large1.compare(rdata_afsdb));
// confirm these are compared in network byte order
EXPECT_GT(0, small1.compare(large2));
EXPECT_LT(0, large2.compare(small1));
// another AFSDB whose server name is larger than that of rdata_afsdb.
const generic::AFSDB large3("256 zzzzz.example.com.");
EXPECT_GT(0, large2.compare(large3));
EXPECT_LT(0, large3.compare(large2));
// comparison attempt between incompatible RR types should be rejected
EXPECT_THROW(rdata_afsdb.compare(*rdata_nomatch), bad_cast);
}
}
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