| // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 
 | // Use of this source code is governed by a BSD-style license that can be | 
 | // found in the LICENSE file. | 
 |  | 
 | #include "net/third_party/quiche/src/quic/core/quic_versions.h" | 
 |  | 
 | #include "net/third_party/quiche/src/quic/platform/api/quic_arraysize.h" | 
 | #include "net/third_party/quiche/src/quic/platform/api/quic_expect_bug.h" | 
 | #include "net/third_party/quiche/src/quic/platform/api/quic_flags.h" | 
 | #include "net/third_party/quiche/src/quic/platform/api/quic_logging.h" | 
 | #include "net/third_party/quiche/src/quic/platform/api/quic_mock_log.h" | 
 | #include "net/third_party/quiche/src/quic/platform/api/quic_test.h" | 
 |  | 
 | namespace quic { | 
 | namespace test { | 
 | namespace { | 
 |  | 
 | using testing::_; | 
 |  | 
 | class QuicVersionsTest : public QuicTest { | 
 |  protected: | 
 |   QuicVersionLabel MakeVersionLabel(char a, char b, char c, char d) { | 
 |     return MakeQuicTag(d, c, b, a); | 
 |   } | 
 | }; | 
 |  | 
 | TEST_F(QuicVersionsTest, QuicVersionToQuicVersionLabel) { | 
 |   // If you add a new version to the QuicTransportVersion enum you will need to | 
 |   // add a new case to QuicVersionToQuicVersionLabel, otherwise this test will | 
 |   // fail. | 
 |  | 
 |   // Any logs would indicate an unsupported version which we don't expect. | 
 |   CREATE_QUIC_MOCK_LOG(log); | 
 |   EXPECT_QUIC_LOG_CALL(log).Times(0); | 
 |   log.StartCapturingLogs(); | 
 |  | 
 |   // Explicitly test a specific version. | 
 |   EXPECT_EQ(MakeQuicTag('9', '3', '0', 'Q'), | 
 |             QuicVersionToQuicVersionLabel(QUIC_VERSION_39)); | 
 |  | 
 |   // Loop over all supported versions and make sure that we never hit the | 
 |   // default case (i.e. all supported versions should be successfully converted | 
 |   // to valid QuicVersionLabels). | 
 |   for (size_t i = 0; i < QUIC_ARRAYSIZE(kSupportedTransportVersions); ++i) { | 
 |     QuicTransportVersion version = kSupportedTransportVersions[i]; | 
 |     EXPECT_LT(0u, QuicVersionToQuicVersionLabel(version)); | 
 |   } | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, QuicVersionToQuicVersionLabelUnsupported) { | 
 |   EXPECT_QUIC_BUG(QuicVersionToQuicVersionLabel(QUIC_VERSION_UNSUPPORTED), | 
 |                   "Unsupported QuicTransportVersion: 0"); | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, QuicVersionLabelToQuicTransportVersion) { | 
 |   // If you add a new version to the QuicTransportVersion enum you will need to | 
 |   // add a new case to QuicVersionLabelToQuicTransportVersion, otherwise this | 
 |   // test will fail. | 
 |  | 
 |   // Any logs would indicate an unsupported version which we don't expect. | 
 |   CREATE_QUIC_MOCK_LOG(log); | 
 |   EXPECT_QUIC_LOG_CALL(log).Times(0); | 
 |   log.StartCapturingLogs(); | 
 |  | 
 |   // Explicitly test specific versions. | 
 |   EXPECT_EQ(QUIC_VERSION_39, | 
 |             QuicVersionLabelToQuicVersion(MakeQuicTag('9', '3', '0', 'Q'))); | 
 |  | 
 |   for (size_t i = 0; i < QUIC_ARRAYSIZE(kSupportedTransportVersions); ++i) { | 
 |     QuicTransportVersion version = kSupportedTransportVersions[i]; | 
 |  | 
 |     // Get the label from the version (we can loop over QuicVersions easily). | 
 |     QuicVersionLabel version_label = QuicVersionToQuicVersionLabel(version); | 
 |     EXPECT_LT(0u, version_label); | 
 |  | 
 |     // Now try converting back. | 
 |     QuicTransportVersion label_to_transport_version = | 
 |         QuicVersionLabelToQuicVersion(version_label); | 
 |     EXPECT_EQ(version, label_to_transport_version); | 
 |     EXPECT_NE(QUIC_VERSION_UNSUPPORTED, label_to_transport_version); | 
 |   } | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, QuicVersionLabelToQuicVersionUnsupported) { | 
 |   CREATE_QUIC_MOCK_LOG(log); | 
 |   if (QUIC_DLOG_INFO_IS_ON()) { | 
 |     EXPECT_QUIC_LOG_CALL_CONTAINS(log, INFO, | 
 |                                   "Unsupported QuicVersionLabel version: EKAF") | 
 |         .Times(1); | 
 |   } | 
 |   log.StartCapturingLogs(); | 
 |  | 
 |   EXPECT_EQ(QUIC_VERSION_UNSUPPORTED, | 
 |             QuicVersionLabelToQuicVersion(MakeQuicTag('F', 'A', 'K', 'E'))); | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, QuicVersionLabelToHandshakeProtocol) { | 
 |   CREATE_QUIC_MOCK_LOG(log); | 
 |   EXPECT_QUIC_LOG_CALL(log).Times(0); | 
 |   log.StartCapturingLogs(); | 
 |  | 
 |   for (size_t i = 0; i < QUIC_ARRAYSIZE(kSupportedTransportVersions); ++i) { | 
 |     QuicVersionLabel version_label = | 
 |         QuicVersionToQuicVersionLabel(kSupportedTransportVersions[i]); | 
 |     EXPECT_EQ(PROTOCOL_QUIC_CRYPTO, | 
 |               QuicVersionLabelToHandshakeProtocol(version_label)); | 
 |   } | 
 |  | 
 |   // Test a TLS version: | 
 |   QuicTag tls_tag = MakeQuicTag('3', '4', '0', 'T'); | 
 |   EXPECT_EQ(PROTOCOL_TLS1_3, QuicVersionLabelToHandshakeProtocol(tls_tag)); | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, ParseQuicVersionLabel) { | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_39), | 
 |             ParseQuicVersionLabel(MakeVersionLabel('Q', '0', '3', '9'))); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_43), | 
 |             ParseQuicVersionLabel(MakeVersionLabel('Q', '0', '4', '3'))); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_46), | 
 |             ParseQuicVersionLabel(MakeVersionLabel('Q', '0', '4', '6'))); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_47), | 
 |             ParseQuicVersionLabel(MakeVersionLabel('Q', '0', '4', '7'))); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_48), | 
 |             ParseQuicVersionLabel(MakeVersionLabel('Q', '0', '4', '8'))); | 
 |  | 
 |   // Test TLS versions: | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_39), | 
 |             ParseQuicVersionLabel(MakeVersionLabel('T', '0', '3', '9'))); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_43), | 
 |             ParseQuicVersionLabel(MakeVersionLabel('T', '0', '4', '3'))); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_46), | 
 |             ParseQuicVersionLabel(MakeVersionLabel('T', '0', '4', '6'))); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_47), | 
 |             ParseQuicVersionLabel(MakeVersionLabel('T', '0', '4', '7'))); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_48), | 
 |             ParseQuicVersionLabel(MakeVersionLabel('T', '0', '4', '8'))); | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, ParseQuicVersionString) { | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_39), | 
 |             ParseQuicVersionString("Q039")); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_43), | 
 |             ParseQuicVersionString("Q043")); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_46), | 
 |             ParseQuicVersionString("Q046")); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_47), | 
 |             ParseQuicVersionString("Q047")); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_48), | 
 |             ParseQuicVersionString("Q048")); | 
 |  | 
 |   EXPECT_EQ(UnsupportedQuicVersion(), ParseQuicVersionString("")); | 
 |   EXPECT_EQ(UnsupportedQuicVersion(), ParseQuicVersionString("Q 47")); | 
 |   EXPECT_EQ(UnsupportedQuicVersion(), ParseQuicVersionString("Q047 ")); | 
 |  | 
 |   // Test a TLS version: | 
 |   SetQuicReloadableFlag(quic_supports_tls_handshake, true); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_39), | 
 |             ParseQuicVersionString("T039")); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_43), | 
 |             ParseQuicVersionString("T043")); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_46), | 
 |             ParseQuicVersionString("T046")); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_47), | 
 |             ParseQuicVersionString("T047")); | 
 |   EXPECT_EQ(ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_48), | 
 |             ParseQuicVersionString("T048")); | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, CreateQuicVersionLabel) { | 
 |   EXPECT_EQ(MakeVersionLabel('Q', '0', '3', '9'), | 
 |             CreateQuicVersionLabel( | 
 |                 ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_39))); | 
 |   EXPECT_EQ(MakeVersionLabel('Q', '0', '4', '3'), | 
 |             CreateQuicVersionLabel( | 
 |                 ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_43))); | 
 |   EXPECT_EQ(MakeVersionLabel('Q', '0', '4', '6'), | 
 |             CreateQuicVersionLabel( | 
 |                 ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_46))); | 
 |   EXPECT_EQ(MakeVersionLabel('Q', '0', '4', '7'), | 
 |             CreateQuicVersionLabel( | 
 |                 ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_47))); | 
 |   EXPECT_EQ(MakeVersionLabel('Q', '0', '4', '8'), | 
 |             CreateQuicVersionLabel( | 
 |                 ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_48))); | 
 |  | 
 |   // Test a TLS version: | 
 |   EXPECT_EQ(MakeVersionLabel('T', '0', '3', '9'), | 
 |             CreateQuicVersionLabel( | 
 |                 ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_39))); | 
 |   EXPECT_EQ(MakeVersionLabel('T', '0', '4', '3'), | 
 |             CreateQuicVersionLabel( | 
 |                 ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_43))); | 
 |   EXPECT_EQ(MakeVersionLabel('T', '0', '4', '6'), | 
 |             CreateQuicVersionLabel( | 
 |                 ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_46))); | 
 |   EXPECT_EQ(MakeVersionLabel('T', '0', '4', '7'), | 
 |             CreateQuicVersionLabel( | 
 |                 ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_47))); | 
 |   EXPECT_EQ(MakeVersionLabel('T', '0', '4', '8'), | 
 |             CreateQuicVersionLabel( | 
 |                 ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_48))); | 
 |  | 
 |   // Make sure the negotiation reserved version is in the IETF reserved space. | 
 |   EXPECT_EQ(MakeVersionLabel(0xda, 0x5a, 0x3a, 0x3a) & 0x0f0f0f0f, | 
 |             CreateQuicVersionLabel(ParsedQuicVersion( | 
 |                 PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_RESERVED_FOR_NEGOTIATION)) & | 
 |                 0x0f0f0f0f); | 
 |  | 
 |   // Make sure that disabling randomness works. | 
 |   SetQuicFlag(FLAGS_quic_disable_version_negotiation_grease_randomness, true); | 
 |   EXPECT_EQ(MakeVersionLabel(0xda, 0x5a, 0x3a, 0x3a), | 
 |             CreateQuicVersionLabel(ParsedQuicVersion( | 
 |                 PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_RESERVED_FOR_NEGOTIATION))); | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, QuicVersionLabelToString) { | 
 |   QuicVersionLabelVector version_labels = { | 
 |       MakeVersionLabel('Q', '0', '3', '5'), | 
 |       MakeVersionLabel('Q', '0', '3', '7'), | 
 |       MakeVersionLabel('T', '0', '3', '8'), | 
 |   }; | 
 |  | 
 |   EXPECT_EQ("Q035", QuicVersionLabelToString(version_labels[0])); | 
 |   EXPECT_EQ("T038", QuicVersionLabelToString(version_labels[2])); | 
 |  | 
 |   EXPECT_EQ("Q035,Q037,T038", QuicVersionLabelVectorToString(version_labels)); | 
 |   EXPECT_EQ("Q035:Q037:T038", | 
 |             QuicVersionLabelVectorToString(version_labels, ":", 2)); | 
 |   EXPECT_EQ("Q035|Q037|...", | 
 |             QuicVersionLabelVectorToString(version_labels, "|", 1)); | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, QuicVersionToString) { | 
 |   EXPECT_EQ("QUIC_VERSION_39", QuicVersionToString(QUIC_VERSION_39)); | 
 |   EXPECT_EQ("QUIC_VERSION_UNSUPPORTED", | 
 |             QuicVersionToString(QUIC_VERSION_UNSUPPORTED)); | 
 |  | 
 |   QuicTransportVersion single_version[] = {QUIC_VERSION_39}; | 
 |   QuicTransportVersionVector versions_vector; | 
 |   for (size_t i = 0; i < QUIC_ARRAYSIZE(single_version); ++i) { | 
 |     versions_vector.push_back(single_version[i]); | 
 |   } | 
 |   EXPECT_EQ("QUIC_VERSION_39", | 
 |             QuicTransportVersionVectorToString(versions_vector)); | 
 |  | 
 |   QuicTransportVersion multiple_versions[] = {QUIC_VERSION_UNSUPPORTED, | 
 |                                               QUIC_VERSION_39}; | 
 |   versions_vector.clear(); | 
 |   for (size_t i = 0; i < QUIC_ARRAYSIZE(multiple_versions); ++i) { | 
 |     versions_vector.push_back(multiple_versions[i]); | 
 |   } | 
 |   EXPECT_EQ("QUIC_VERSION_UNSUPPORTED,QUIC_VERSION_39", | 
 |             QuicTransportVersionVectorToString(versions_vector)); | 
 |  | 
 |   // Make sure that all supported versions are present in QuicVersionToString. | 
 |   for (size_t i = 0; i < QUIC_ARRAYSIZE(kSupportedTransportVersions); ++i) { | 
 |     QuicTransportVersion version = kSupportedTransportVersions[i]; | 
 |     EXPECT_NE("QUIC_VERSION_UNSUPPORTED", QuicVersionToString(version)); | 
 |   } | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, ParsedQuicVersionToString) { | 
 |   ParsedQuicVersion unsupported = UnsupportedQuicVersion(); | 
 |   ParsedQuicVersion version39(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_39); | 
 |   EXPECT_EQ("Q039", ParsedQuicVersionToString(version39)); | 
 |   EXPECT_EQ("0", ParsedQuicVersionToString(unsupported)); | 
 |  | 
 |   ParsedQuicVersionVector versions_vector = {version39}; | 
 |   EXPECT_EQ("Q039", ParsedQuicVersionVectorToString(versions_vector)); | 
 |  | 
 |   versions_vector = {unsupported, version39}; | 
 |   EXPECT_EQ("0,Q039", ParsedQuicVersionVectorToString(versions_vector)); | 
 |   EXPECT_EQ("0:Q039", ParsedQuicVersionVectorToString(versions_vector, ":", | 
 |                                                       versions_vector.size())); | 
 |   EXPECT_EQ("0|...", ParsedQuicVersionVectorToString(versions_vector, "|", 0)); | 
 |  | 
 |   // Make sure that all supported versions are present in | 
 |   // ParsedQuicVersionToString. | 
 |   for (QuicTransportVersion transport_version : kSupportedTransportVersions) { | 
 |     for (HandshakeProtocol protocol : kSupportedHandshakeProtocols) { | 
 |       EXPECT_NE("0", ParsedQuicVersionToString( | 
 |                          ParsedQuicVersion(protocol, transport_version))); | 
 |     } | 
 |   } | 
 | } | 
 | TEST_F(QuicVersionsTest, AllSupportedTransportVersions) { | 
 |   QuicTransportVersionVector all_versions = AllSupportedTransportVersions(); | 
 |   ASSERT_EQ(QUIC_ARRAYSIZE(kSupportedTransportVersions), all_versions.size()); | 
 |   for (size_t i = 0; i < all_versions.size(); ++i) { | 
 |     EXPECT_EQ(kSupportedTransportVersions[i], all_versions[i]); | 
 |   } | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, FilterSupportedTransportVersionsAllVersions) { | 
 |   QuicTransportVersionVector all_versions = AllSupportedTransportVersions(); | 
 |   static_assert(QUIC_ARRAYSIZE(kSupportedTransportVersions) == 7u, | 
 |                 "Supported versions out of sync"); | 
 |   SetQuicReloadableFlag(quic_disable_version_39, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_47, true); | 
 |   SetQuicReloadableFlag(quic_enable_version_48_2, true); | 
 |   SetQuicReloadableFlag(quic_enable_version_49, true); | 
 |   SetQuicReloadableFlag(quic_enable_version_99, true); | 
 |   SetQuicReloadableFlag(quic_use_parse_public_header, true); | 
 |   ParsedQuicVersionVector parsed_versions; | 
 |   for (QuicTransportVersion version : all_versions) { | 
 |     parsed_versions.push_back(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version)); | 
 |   } | 
 |   QuicTransportVersionVector expected_versions = { | 
 |       QUIC_VERSION_99, QUIC_VERSION_49, QUIC_VERSION_48, QUIC_VERSION_47, | 
 |       QUIC_VERSION_46, QUIC_VERSION_43, QUIC_VERSION_39}; | 
 |   ParsedQuicVersionVector expected_parsed_versions; | 
 |   for (QuicTransportVersion version : expected_versions) { | 
 |     expected_parsed_versions.push_back( | 
 |         ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version)); | 
 |   } | 
 |  | 
 |   ASSERT_EQ(expected_versions, FilterSupportedTransportVersions(all_versions)); | 
 |   ASSERT_EQ(expected_parsed_versions, FilterSupportedVersions(parsed_versions)); | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, FilterSupportedTransportVersionsNo99) { | 
 |   QuicTransportVersionVector all_versions = AllSupportedTransportVersions(); | 
 |   static_assert(QUIC_ARRAYSIZE(kSupportedTransportVersions) == 7u, | 
 |                 "Supported versions out of sync"); | 
 |   SetQuicReloadableFlag(quic_disable_version_39, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_47, true); | 
 |   SetQuicReloadableFlag(quic_enable_version_48_2, true); | 
 |   SetQuicReloadableFlag(quic_enable_version_49, true); | 
 |   SetQuicReloadableFlag(quic_enable_version_99, false); | 
 |   SetQuicReloadableFlag(quic_use_parse_public_header, true); | 
 |   ParsedQuicVersionVector parsed_versions; | 
 |   for (QuicTransportVersion version : all_versions) { | 
 |     parsed_versions.push_back(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version)); | 
 |   } | 
 |   QuicTransportVersionVector expected_versions = { | 
 |       QUIC_VERSION_49, QUIC_VERSION_48, QUIC_VERSION_47, | 
 |       QUIC_VERSION_46, QUIC_VERSION_43, QUIC_VERSION_39}; | 
 |   ParsedQuicVersionVector expected_parsed_versions; | 
 |   for (QuicTransportVersion version : expected_versions) { | 
 |     expected_parsed_versions.push_back( | 
 |         ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version)); | 
 |   } | 
 |  | 
 |   ASSERT_EQ(expected_versions, FilterSupportedTransportVersions(all_versions)); | 
 |   ASSERT_EQ(expected_parsed_versions, FilterSupportedVersions(parsed_versions)); | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, FilterSupportedTransportVersionsNo49) { | 
 |   QuicTransportVersionVector all_versions = AllSupportedTransportVersions(); | 
 |   static_assert(QUIC_ARRAYSIZE(kSupportedTransportVersions) == 7u, | 
 |                 "Supported versions out of sync"); | 
 |   SetQuicReloadableFlag(quic_disable_version_39, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_47, true); | 
 |   SetQuicReloadableFlag(quic_enable_version_48_2, true); | 
 |   SetQuicReloadableFlag(quic_enable_version_49, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_99, false); | 
 |   ParsedQuicVersionVector parsed_versions; | 
 |   for (QuicTransportVersion version : all_versions) { | 
 |     parsed_versions.push_back(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version)); | 
 |   } | 
 |   QuicTransportVersionVector expected_versions = { | 
 |       QUIC_VERSION_48, QUIC_VERSION_47, QUIC_VERSION_46, QUIC_VERSION_43, | 
 |       QUIC_VERSION_39}; | 
 |   ParsedQuicVersionVector expected_parsed_versions; | 
 |   for (QuicTransportVersion version : expected_versions) { | 
 |     expected_parsed_versions.push_back( | 
 |         ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version)); | 
 |   } | 
 |  | 
 |   ASSERT_EQ(expected_versions, FilterSupportedTransportVersions(all_versions)); | 
 |   ASSERT_EQ(expected_parsed_versions, FilterSupportedVersions(parsed_versions)); | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, FilterSupportedTransportVersionsNo48) { | 
 |   QuicTransportVersionVector all_versions = AllSupportedTransportVersions(); | 
 |   static_assert(QUIC_ARRAYSIZE(kSupportedTransportVersions) == 7u, | 
 |                 "Supported versions out of sync"); | 
 |   SetQuicReloadableFlag(quic_disable_version_39, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_47, true); | 
 |   SetQuicReloadableFlag(quic_enable_version_48_2, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_49, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_99, false); | 
 |   ParsedQuicVersionVector parsed_versions; | 
 |   for (QuicTransportVersion version : all_versions) { | 
 |     parsed_versions.push_back(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version)); | 
 |   } | 
 |   QuicTransportVersionVector expected_versions = { | 
 |       QUIC_VERSION_47, QUIC_VERSION_46, QUIC_VERSION_43, QUIC_VERSION_39}; | 
 |   ParsedQuicVersionVector expected_parsed_versions; | 
 |   for (QuicTransportVersion version : expected_versions) { | 
 |     expected_parsed_versions.push_back( | 
 |         ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version)); | 
 |   } | 
 |  | 
 |   ASSERT_EQ(expected_versions, FilterSupportedTransportVersions(all_versions)); | 
 |   ASSERT_EQ(expected_parsed_versions, FilterSupportedVersions(parsed_versions)); | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, FilterSupportedTransportVersionsNo47) { | 
 |   QuicTransportVersionVector all_versions = AllSupportedTransportVersions(); | 
 |   static_assert(QUIC_ARRAYSIZE(kSupportedTransportVersions) == 7u, | 
 |                 "Supported versions out of sync"); | 
 |   SetQuicReloadableFlag(quic_disable_version_39, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_47, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_48_2, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_49, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_99, false); | 
 |   ParsedQuicVersionVector parsed_versions; | 
 |   for (QuicTransportVersion version : all_versions) { | 
 |     parsed_versions.push_back(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version)); | 
 |   } | 
 |   QuicTransportVersionVector expected_versions = { | 
 |       QUIC_VERSION_46, QUIC_VERSION_43, QUIC_VERSION_39}; | 
 |   ParsedQuicVersionVector expected_parsed_versions; | 
 |   for (QuicTransportVersion version : expected_versions) { | 
 |     expected_parsed_versions.push_back( | 
 |         ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version)); | 
 |   } | 
 |  | 
 |   ASSERT_EQ(expected_versions, FilterSupportedTransportVersions(all_versions)); | 
 |   ASSERT_EQ(expected_parsed_versions, FilterSupportedVersions(parsed_versions)); | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, FilterSupportedTransportVersionsNo39) { | 
 |   QuicTransportVersionVector all_versions = AllSupportedTransportVersions(); | 
 |   static_assert(QUIC_ARRAYSIZE(kSupportedTransportVersions) == 7u, | 
 |                 "Supported versions out of sync"); | 
 |   SetQuicReloadableFlag(quic_disable_version_39, true); | 
 |   SetQuicReloadableFlag(quic_enable_version_47, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_48_2, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_49, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_99, false); | 
 |   ParsedQuicVersionVector parsed_versions; | 
 |   for (QuicTransportVersion version : all_versions) { | 
 |     parsed_versions.push_back(ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version)); | 
 |   } | 
 |   QuicTransportVersionVector expected_versions = {QUIC_VERSION_46, | 
 |                                                   QUIC_VERSION_43}; | 
 |   ParsedQuicVersionVector expected_parsed_versions; | 
 |   for (QuicTransportVersion version : expected_versions) { | 
 |     expected_parsed_versions.push_back( | 
 |         ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, version)); | 
 |   } | 
 |  | 
 |   ASSERT_EQ(expected_versions, FilterSupportedTransportVersions(all_versions)); | 
 |   ASSERT_EQ(expected_parsed_versions, FilterSupportedVersions(parsed_versions)); | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, LookUpVersionByIndex) { | 
 |   QuicTransportVersionVector all_versions = {QUIC_VERSION_39}; | 
 |   int version_count = all_versions.size(); | 
 |   for (int i = -5; i <= version_count + 1; ++i) { | 
 |     if (i >= 0 && i < version_count) { | 
 |       EXPECT_EQ(all_versions[i], VersionOfIndex(all_versions, i)[0]); | 
 |     } else { | 
 |       EXPECT_EQ(QUIC_VERSION_UNSUPPORTED, VersionOfIndex(all_versions, i)[0]); | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, LookUpParsedVersionByIndex) { | 
 |   ParsedQuicVersionVector all_versions = AllSupportedVersions(); | 
 |   int version_count = all_versions.size(); | 
 |   for (int i = -5; i <= version_count + 1; ++i) { | 
 |     if (i >= 0 && i < version_count) { | 
 |       EXPECT_EQ(all_versions[i], ParsedVersionOfIndex(all_versions, i)[0]); | 
 |     } else { | 
 |       EXPECT_EQ(UnsupportedQuicVersion(), | 
 |                 ParsedVersionOfIndex(all_versions, i)[0]); | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, ParsedVersionsToTransportVersions) { | 
 |   ParsedQuicVersionVector all_versions = AllSupportedVersions(); | 
 |   QuicTransportVersionVector transport_versions = | 
 |       ParsedVersionsToTransportVersions(all_versions); | 
 |   ASSERT_EQ(all_versions.size(), transport_versions.size()); | 
 |   for (size_t i = 0; i < all_versions.size(); ++i) { | 
 |     EXPECT_EQ(transport_versions[i], all_versions[i].transport_version); | 
 |   } | 
 | } | 
 |  | 
 | // This test may appear to be so simplistic as to be unnecessary, | 
 | // yet a typo was made in doing the #defines and it was caught | 
 | // only in some test far removed from here... Better safe than sorry. | 
 | TEST_F(QuicVersionsTest, CheckVersionNumbersForTypos) { | 
 |   static_assert(QUIC_ARRAYSIZE(kSupportedTransportVersions) == 7u, | 
 |                 "Supported versions out of sync"); | 
 |   EXPECT_EQ(QUIC_VERSION_39, 39); | 
 |   EXPECT_EQ(QUIC_VERSION_43, 43); | 
 |   EXPECT_EQ(QUIC_VERSION_46, 46); | 
 |   EXPECT_EQ(QUIC_VERSION_47, 47); | 
 |   EXPECT_EQ(QUIC_VERSION_48, 48); | 
 |   EXPECT_EQ(QUIC_VERSION_49, 49); | 
 |   EXPECT_EQ(QUIC_VERSION_99, 99); | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, AlpnForVersion) { | 
 |   static_assert(QUIC_ARRAYSIZE(kSupportedTransportVersions) == 7u, | 
 |                 "Supported versions out of sync"); | 
 |   ParsedQuicVersion parsed_version_q047 = | 
 |       ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_47); | 
 |   ParsedQuicVersion parsed_version_t047 = | 
 |       ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_47); | 
 |   ParsedQuicVersion parsed_version_q048 = | 
 |       ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_48); | 
 |   ParsedQuicVersion parsed_version_t048 = | 
 |       ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_48); | 
 |   ParsedQuicVersion parsed_version_q049 = | 
 |       ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_49); | 
 |   ParsedQuicVersion parsed_version_t049 = | 
 |       ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_49); | 
 |   ParsedQuicVersion parsed_version_t099 = | 
 |       ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_99); | 
 |  | 
 |   EXPECT_EQ("h3-Q047", AlpnForVersion(parsed_version_q047)); | 
 |   EXPECT_EQ("h3-T047", AlpnForVersion(parsed_version_t047)); | 
 |   EXPECT_EQ("h3-Q048", AlpnForVersion(parsed_version_q048)); | 
 |   EXPECT_EQ("h3-T048", AlpnForVersion(parsed_version_t048)); | 
 |   EXPECT_EQ("h3-Q049", AlpnForVersion(parsed_version_q049)); | 
 |   EXPECT_EQ("h3-T049", AlpnForVersion(parsed_version_t049)); | 
 |   EXPECT_EQ("h3-23", AlpnForVersion(parsed_version_t099)); | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, QuicEnableVersion) { | 
 |   static_assert(QUIC_ARRAYSIZE(kSupportedTransportVersions) == 7u, | 
 |                 "Supported versions out of sync"); | 
 |   SetQuicReloadableFlag(quic_supports_tls_handshake, true); | 
 |   ParsedQuicVersion parsed_version_q047 = | 
 |       ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_47); | 
 |   ParsedQuicVersion parsed_version_t047 = | 
 |       ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_47); | 
 |   ParsedQuicVersion parsed_version_q048 = | 
 |       ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_48); | 
 |   ParsedQuicVersion parsed_version_t048 = | 
 |       ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_48); | 
 |   ParsedQuicVersion parsed_version_q049 = | 
 |       ParsedQuicVersion(PROTOCOL_QUIC_CRYPTO, QUIC_VERSION_49); | 
 |   ParsedQuicVersion parsed_version_t049 = | 
 |       ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_49); | 
 |   ParsedQuicVersion parsed_version_t099 = | 
 |       ParsedQuicVersion(PROTOCOL_TLS1_3, QUIC_VERSION_99); | 
 |   SetQuicReloadableFlag(quic_supports_tls_handshake, false); | 
 |   SetQuicReloadableFlag(quic_disable_version_39, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_47, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_48_2, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_49, false); | 
 |   SetQuicReloadableFlag(quic_enable_version_99, false); | 
 |  | 
 |   { | 
 |     QuicFlagSaver flag_saver; | 
 |     QuicEnableVersion(parsed_version_q047); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_supports_tls_handshake)); | 
 |     EXPECT_TRUE(GetQuicReloadableFlag(quic_enable_version_47)); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_enable_version_48_2)); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_enable_version_99)); | 
 |   } | 
 |  | 
 |   { | 
 |     QuicFlagSaver flag_saver; | 
 |     QuicEnableVersion(parsed_version_t047); | 
 |     EXPECT_TRUE(GetQuicReloadableFlag(quic_supports_tls_handshake)); | 
 |     EXPECT_TRUE(GetQuicReloadableFlag(quic_enable_version_47)); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_enable_version_48_2)); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_enable_version_99)); | 
 |   } | 
 |  | 
 |   { | 
 |     QuicFlagSaver flag_saver; | 
 |     QuicEnableVersion(parsed_version_q048); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_supports_tls_handshake)); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_enable_version_47)); | 
 |     EXPECT_TRUE(GetQuicReloadableFlag(quic_enable_version_48_2)); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_enable_version_99)); | 
 |   } | 
 |  | 
 |   { | 
 |     QuicFlagSaver flag_saver; | 
 |     QuicEnableVersion(parsed_version_t048); | 
 |     EXPECT_TRUE(GetQuicReloadableFlag(quic_supports_tls_handshake)); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_enable_version_47)); | 
 |     EXPECT_TRUE(GetQuicReloadableFlag(quic_enable_version_48_2)); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_enable_version_99)); | 
 |   } | 
 |  | 
 |   { | 
 |     QuicFlagSaver flag_saver; | 
 |     QuicEnableVersion(parsed_version_q049); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_supports_tls_handshake)); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_enable_version_47)); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_enable_version_48_2)); | 
 |     EXPECT_TRUE(GetQuicReloadableFlag(quic_enable_version_49)); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_enable_version_99)); | 
 |   } | 
 |  | 
 |   { | 
 |     QuicFlagSaver flag_saver; | 
 |     QuicEnableVersion(parsed_version_t049); | 
 |     EXPECT_TRUE(GetQuicReloadableFlag(quic_supports_tls_handshake)); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_enable_version_47)); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_enable_version_48_2)); | 
 |     EXPECT_TRUE(GetQuicReloadableFlag(quic_enable_version_49)); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_enable_version_99)); | 
 |   } | 
 |  | 
 |   { | 
 |     QuicFlagSaver flag_saver; | 
 |     QuicEnableVersion(parsed_version_t099); | 
 |     EXPECT_TRUE(GetQuicReloadableFlag(quic_supports_tls_handshake)); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_enable_version_47)); | 
 |     EXPECT_FALSE(GetQuicReloadableFlag(quic_enable_version_48_2)); | 
 |     EXPECT_TRUE(GetQuicReloadableFlag(quic_enable_version_99)); | 
 |   } | 
 | } | 
 |  | 
 | TEST_F(QuicVersionsTest, ReservedForNegotiation) { | 
 |   EXPECT_EQ(QUIC_VERSION_RESERVED_FOR_NEGOTIATION, | 
 |             QuicVersionReservedForNegotiation().transport_version); | 
 |   // QUIC_VERSION_RESERVED_FOR_NEGOTIATION MUST NOT be added to | 
 |   // kSupportedTransportVersions. | 
 |   for (size_t i = 0; i < QUIC_ARRAYSIZE(kSupportedTransportVersions); ++i) { | 
 |     EXPECT_NE(QUIC_VERSION_RESERVED_FOR_NEGOTIATION, | 
 |               kSupportedTransportVersions[i]); | 
 |   } | 
 | } | 
 |  | 
 | }  // namespace | 
 | }  // namespace test | 
 | }  // namespace quic |