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// Copyright (C) 2010 Internet Systems Consortium, Inc. ("ISC")
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.
#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>
using isc::UnitTestUtil;
using namespace std;
using namespace isc::dns;
using namespace isc::util;
using namespace isc::dns::rdata;
namespace {
class Rdata_CNAME_Test : public RdataTest {
// there's nothing to specialize
};
const generic::CNAME rdata_cname("cn.example.com");
const generic::CNAME rdata_cname2("cn2.example.com");
const uint8_t wiredata_cname[] = {
0x02, 0x63, 0x6e, 0x07, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x03,
0x63, 0x6f, 0x6d, 0x00 };
const uint8_t wiredata_cname2[] = {
// first name: cn.example.com.
0x02, 0x63, 0x6e, 0x07, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x03,
0x63, 0x6f, 0x6d, 0x00,
// second name: cn2.example.com. all labels except the first should be
// compressed.
0x03, 0x63, 0x6e, 0x32, 0xc0, 0x03 };
TEST_F(Rdata_CNAME_Test, createFromText) {
EXPECT_EQ(0, rdata_cname.compare(generic::CNAME("cn.example.com")));
// explicitly add a trailing dot. should be the same RDATA.
EXPECT_EQ(0, rdata_cname.compare(generic::CNAME("cn.example.com.")));
// should be case sensitive.
EXPECT_EQ(0, rdata_cname.compare(generic::CNAME("CN.EXAMPLE.COM")));
// RDATA of a class-independent type should be recognized for any
// "unknown" class.
EXPECT_EQ(0, rdata_cname.compare(*createRdata(RRType("CNAME"),
RRClass(65000),
"cn.example.com")));
}
TEST_F(Rdata_CNAME_Test, createFromWire) {
EXPECT_EQ(0, rdata_cname.compare(
*rdataFactoryFromFile(RRType("CNAME"), RRClass("IN"),
"rdata_cname_fromWire")));
// RDLENGTH is too short
EXPECT_THROW(rdataFactoryFromFile(RRType("CNAME"), RRClass("IN"),
"rdata_cname_fromWire", 18),
InvalidRdataLength);
// RDLENGTH is too long
EXPECT_THROW(rdataFactoryFromFile(RRType("CNAME"), RRClass("IN"),
"rdata_cname_fromWire", 36),
InvalidRdataLength);
// incomplete name. the error should be detected in the name constructor
EXPECT_THROW(rdataFactoryFromFile(RRType("CNAME"), RRClass("IN"),
"rdata_cname_fromWire", 71),
DNSMessageFORMERR);
EXPECT_EQ(0, generic::CNAME("cn2.example.com").compare(
*rdataFactoryFromFile(RRType("CNAME"), RRClass("IN"),
"rdata_cname_fromWire", 55)));
EXPECT_THROW(*rdataFactoryFromFile(RRType("CNAME"), RRClass("IN"),
"rdata_cname_fromWire", 63),
InvalidRdataLength);
}
TEST_F(Rdata_CNAME_Test, toWireBuffer) {
rdata_cname.toWire(obuffer);
EXPECT_PRED_FORMAT4(UnitTestUtil::matchWireData,
obuffer.getData(), obuffer.getLength(),
wiredata_cname, sizeof(wiredata_cname));
}
TEST_F(Rdata_CNAME_Test, toWireRenderer) {
rdata_cname.toWire(renderer);
EXPECT_PRED_FORMAT4(UnitTestUtil::matchWireData,
obuffer.getData(), obuffer.getLength(),
wiredata_cname, sizeof(wiredata_cname));
rdata_cname2.toWire(renderer);
EXPECT_PRED_FORMAT4(UnitTestUtil::matchWireData,
obuffer.getData(), obuffer.getLength(),
wiredata_cname2, sizeof(wiredata_cname2));
}
TEST_F(Rdata_CNAME_Test, toText) {
EXPECT_EQ("cn.example.com.", rdata_cname.toText());
}
TEST_F(Rdata_CNAME_Test, getCname) {
EXPECT_EQ(Name("cn.example.com."), rdata_cname.getCname());
}
}
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