dns_response_result_extractor_unittest.cc

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "net/dns/dns_response_result_extractor.h"

#include <optional>
#include <string>
#include <utility>
#include <vector>

#include "base/ranges/algorithm.h"
#include "base/test/simple_test_clock.h"
#include "base/test/simple_test_tick_clock.h"
#include "base/time/time.h"
#include "net/base/connection_endpoint_metadata_test_util.h"
#include "net/base/host_port_pair.h"
#include "net/base/ip_address.h"
#include "net/base/ip_endpoint.h"
#include "net/base/net_errors.h"
#include "net/dns/dns_query.h"
#include "net/dns/dns_response.h"
#include "net/dns/dns_test_util.h"
#include "net/dns/host_cache.h"
#include "net/dns/host_resolver_internal_result.h"
#include "net/dns/host_resolver_internal_result_test_util.h"
#include "net/dns/host_resolver_results_test_util.h"
#include "net/dns/public/dns_protocol.h"
#include "net/dns/public/dns_query_type.h"
#include "net/test/gtest_util.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace net {
namespace {

AllOf;
ElementsAre;
ElementsAreArray;
Eq;
IsEmpty;
Ne;
Optional;
Pair;
Pointee;
ResultOf;
SizeIs;
UnorderedElementsAre;

ExtractionError;
ResultsOrError;

constexpr HostResolverInternalResult::Source kDnsSource = …;

class DnsResponseResultExtractorTest : public ::testing::Test { … };

TEST_F(DnsResponseResultExtractorTest, ExtractsSingleARecord) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsSingleAAAARecord) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsSingleARecordWithCname) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsARecordsWithCname) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsNxdomainAResponses) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsNodataAResponses) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsMalformedARecord) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsWrongNameARecord) { … }

TEST_F(DnsResponseResultExtractorTest, IgnoresWrongTypeRecordsInAResponse) { … }

TEST_F(DnsResponseResultExtractorTest,
       IgnoresWrongTypeRecordsMixedWithARecords) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsMinATtl) { … }

MATCHER_P(ContainsContiguousElements, elements, "") { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsTxtResponses) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsNxdomainTxtResponses) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsNodataTxtResponses) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsMalformedTxtRecord) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsWrongNameTxtRecord) { … }

TEST_F(DnsResponseResultExtractorTest, IgnoresWrongTypeTxtResponses) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsMinTxtTtl) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsPtrResponses) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsNxdomainPtrResponses) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsNodataPtrResponses) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsMalformedPtrRecord) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsWrongNamePtrRecord) { … }

TEST_F(DnsResponseResultExtractorTest, IgnoresWrongTypePtrResponses) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsSrvResponses) { … }

// 0-weight services are allowed. Ensure that we can handle such records,
// especially the case where all entries have weight 0.
TEST_F(DnsResponseResultExtractorTest, ExtractsZeroWeightSrvResponses) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsNxdomainSrvResponses) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsNodataSrvResponses) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsMalformedSrvRecord) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsWrongNameSrvRecord) { … }

TEST_F(DnsResponseResultExtractorTest, IgnoresWrongTypeSrvResponses) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsBasicHttpsResponses) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsComprehensiveHttpsResponses) { … }

TEST_F(DnsResponseResultExtractorTest, IgnoresHttpsResponseWithJustAlias) { … }

TEST_F(DnsResponseResultExtractorTest, IgnoresHttpsResponseWithAlias) { … }

// Expect the entire response to be ignored if all HTTPS records have the
// "no-default-alpn" param.
TEST_F(DnsResponseResultExtractorTest, IgnoresHttpsResponseWithNoDefaultAlpn) { … }

// Unsupported/unknown HTTPS params are simply ignored if not marked mandatory.
TEST_F(DnsResponseResultExtractorTest, IgnoresUnsupportedParamsInHttpsRecord) { … }

// Entire record is dropped if an unsupported/unknown HTTPS param is marked
// mandatory.
TEST_F(DnsResponseResultExtractorTest,
       IgnoresHttpsRecordWithUnsupportedMandatoryParam) { … }

TEST_F(DnsResponseResultExtractorTest,
       ExtractsHttpsRecordWithMatchingServiceName) { … }

TEST_F(DnsResponseResultExtractorTest,
       ExtractsHttpsRecordWithMatchingDefaultServiceName) { … }

TEST_F(DnsResponseResultExtractorTest,
       ExtractsHttpsRecordWithPrefixedNameAndMatchingServiceName) { … }

TEST_F(DnsResponseResultExtractorTest,
       ExtractsHttpsRecordWithAliasingAndMatchingServiceName) { … }

TEST_F(DnsResponseResultExtractorTest,
       IgnoreHttpsRecordWithNonMatchingServiceName) { … }

TEST_F(DnsResponseResultExtractorTest,
       ExtractsHttpsRecordWithPrefixedNameAndDefaultServiceName) { … }

TEST_F(DnsResponseResultExtractorTest,
       ExtractsHttpsRecordWithAliasingAndDefaultServiceName) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsHttpsRecordWithMatchingPort) { … }

TEST_F(DnsResponseResultExtractorTest, IgnoresHttpsRecordWithMismatchingPort) { … }

// HTTPS records with "no-default-alpn" but also no "alpn" are not
// "self-consistent" and should be ignored.
TEST_F(DnsResponseResultExtractorTest, IgnoresHttpsRecordWithNoAlpn) { … }

// Expect the entire response to be ignored if all HTTPS records have the
// "no-default-alpn" param.
TEST_F(DnsResponseResultExtractorTest,
       IgnoresHttpsResponseWithNoCompatibleDefaultAlpn) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsNxdomainHttpsResponses) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsNodataHttpsResponses) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsMalformedHttpsRecord) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsWrongNameHttpsRecord) { … }

TEST_F(DnsResponseResultExtractorTest, IgnoresWrongTypeHttpsResponses) { … }

TEST_F(DnsResponseResultExtractorTest, IgnoresAdditionalHttpsRecords) { … }

TEST_F(DnsResponseResultExtractorTest, IgnoresUnsolicitedHttpsRecords) { … }

TEST_F(DnsResponseResultExtractorTest, HandlesInOrderCnameChain) { … }

TEST_F(DnsResponseResultExtractorTest, HandlesInOrderCnameChainTypeA) { … }

TEST_F(DnsResponseResultExtractorTest, HandlesReverseOrderCnameChain) { … }

TEST_F(DnsResponseResultExtractorTest, HandlesReverseOrderCnameChainTypeA) { … }

TEST_F(DnsResponseResultExtractorTest, HandlesArbitraryOrderCnameChain) { … }

TEST_F(DnsResponseResultExtractorTest, HandlesArbitraryOrderCnameChainTypeA) { … }

TEST_F(DnsResponseResultExtractorTest,
       IgnoresNonResultTypesMixedWithCnameChain) { … }

TEST_F(DnsResponseResultExtractorTest,
       IgnoresNonResultTypesMixedWithCnameChainTypeA) { … }

TEST_F(DnsResponseResultExtractorTest, HandlesCnameChainWithoutResult) { … }

TEST_F(DnsResponseResultExtractorTest, HandlesCnameChainWithoutResultTypeA) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsCnameChainWithLoop) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsCnameChainWithLoopToBeginning) { … }

TEST_F(DnsResponseResultExtractorTest,
       RejectsCnameChainWithLoopToBeginningWithoutResult) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsCnameChainWithWrongStart) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsCnameChainWithWrongResultName) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsCnameSharedWithResult) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsDisjointCnameChain) { … }

TEST_F(DnsResponseResultExtractorTest, RejectsDoubledCnames) { … }

TEST_F(DnsResponseResultExtractorTest, IgnoresTtlFromNonResultType) { … }

TEST_F(DnsResponseResultExtractorTest, ExtractsTtlFromCname) { … }

TEST_F(DnsResponseResultExtractorTest, ValidatesAliasNames) { … }

TEST_F(DnsResponseResultExtractorTest, CanonicalizesAliasNames) { … }

}  // namespace
}  // namespace net
chromium/net/dns/dns_response_result_extractor_unittest.cc
