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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_IN_A_Test : public RdataTest {
// there's nothing to specialize
};
const in::A rdata_in_a("192.0.2.1");
const uint8_t wiredata_in_a[] = { 192, 0, 2, 1 };
TEST_F(Rdata_IN_A_Test, createFromText) {
EXPECT_EQ(0, rdata_in_a.compare(in::A("192.0.2.1")));
// should reject an abbreviated form of IPv4 address
EXPECT_THROW(in::A("10.1"), InvalidRdataText);
// or an IPv6 address
EXPECT_THROW(in::A("2001:db8::1234"), InvalidRdataText);
// or any meaningless text as an IP address
EXPECT_THROW(in::A("xxx"), InvalidRdataText);
}
TEST_F(Rdata_IN_A_Test, createFromWire) {
// Valid data
EXPECT_EQ(0, rdata_in_a.compare(
*rdataFactoryFromFile(RRType::A(), RRClass::IN(),
"rdata_in_a_fromWire")));
// RDLENGTH is too short
EXPECT_THROW(rdataFactoryFromFile(RRType::A(), RRClass::IN(),
"rdata_in_a_fromWire", 6),
DNSMessageFORMERR);
// RDLENGTH is too long
EXPECT_THROW(rdataFactoryFromFile(RRType::A(), RRClass::IN(),
"rdata_in_a_fromWire", 12),
DNSMessageFORMERR);
// buffer too short.
EXPECT_THROW(rdataFactoryFromFile(RRType::A(), RRClass::IN(),
"rdata_in_a_fromWire", 19),
DNSMessageFORMERR);
}
TEST_F(Rdata_IN_A_Test, toWireBuffer) {
rdata_in_a.toWire(obuffer);
EXPECT_PRED_FORMAT4(UnitTestUtil::matchWireData,
obuffer.getData(), obuffer.getLength(),
wiredata_in_a, sizeof(wiredata_in_a));
}
TEST_F(Rdata_IN_A_Test, toWireRenderer) {
rdata_in_a.toWire(renderer);
EXPECT_PRED_FORMAT4(UnitTestUtil::matchWireData,
obuffer.getData(), obuffer.getLength(),
wiredata_in_a, sizeof(wiredata_in_a));
}
TEST_F(Rdata_IN_A_Test, toText) {
EXPECT_EQ("192.0.2.1", rdata_in_a.toText());
string longaddr("255.255.255.255"); // this shouldn't make the code crash
EXPECT_EQ(longaddr, in::A(longaddr).toText());
}
TEST_F(Rdata_IN_A_Test, compare) {
in::A small1("1.1.1.1");
in::A small2("1.2.3.4");
in::A large1("255.255.255.255");
in::A large2("4.3.2.1");
// trivial case: self equivalence
EXPECT_EQ(0, small1.compare(small1));
// confirm these are compared as unsigned values
EXPECT_GT(0, small1.compare(large1));
EXPECT_LT(0, large1.compare(small1));
// confirm these are compared in network byte order
EXPECT_GT(0, small2.compare(large2));
EXPECT_LT(0, large2.compare(small2));
// comparison attempt between incompatible RR types should be rejected
EXPECT_THROW(rdata_in_a.compare(*RdataTest::rdata_nomatch), bad_cast);
}
}
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