| #include "http2/adapter/oghttp2_adapter.h" | 
 |  | 
 | #include <string> | 
 |  | 
 | #include "absl/strings/str_join.h" | 
 | #include "http2/adapter/http2_protocol.h" | 
 | #include "http2/adapter/http2_visitor_interface.h" | 
 | #include "http2/adapter/mock_http2_visitor.h" | 
 | #include "http2/adapter/oghttp2_util.h" | 
 | #include "http2/adapter/test_frame_sequence.h" | 
 | #include "http2/adapter/test_utils.h" | 
 | #include "common/platform/api/quiche_test.h" | 
 | #include "common/platform/api/quiche_test_helpers.h" | 
 |  | 
 | namespace http2 { | 
 | namespace adapter { | 
 | namespace test { | 
 | namespace { | 
 |  | 
 | using ConnectionError = Http2VisitorInterface::ConnectionError; | 
 |  | 
 | using testing::_; | 
 |  | 
 | enum FrameType { | 
 |   DATA, | 
 |   HEADERS, | 
 |   PRIORITY, | 
 |   RST_STREAM, | 
 |   SETTINGS, | 
 |   PUSH_PROMISE, | 
 |   PING, | 
 |   GOAWAY, | 
 |   WINDOW_UPDATE, | 
 |   CONTINUATION, | 
 | }; | 
 |  | 
 | using spdy::SpdyFrameType; | 
 |  | 
 | class OgHttp2AdapterTest : public testing::Test { | 
 |  protected: | 
 |   void SetUp() override { | 
 |     OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |     adapter_ = OgHttp2Adapter::Create(http2_visitor_, options); | 
 |   } | 
 |  | 
 |   DataSavingVisitor http2_visitor_; | 
 |   std::unique_ptr<OgHttp2Adapter> adapter_; | 
 | }; | 
 |  | 
 | TEST_F(OgHttp2AdapterTest, IsServerSession) { | 
 |   EXPECT_TRUE(adapter_->IsServerSession()); | 
 | } | 
 |  | 
 | TEST_F(OgHttp2AdapterTest, ProcessBytes) { | 
 |   testing::InSequence seq; | 
 |   EXPECT_CALL(http2_visitor_, OnFrameHeader(0, 0, 4, 0)); | 
 |   EXPECT_CALL(http2_visitor_, OnSettingsStart()); | 
 |   EXPECT_CALL(http2_visitor_, OnSettingsEnd()); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameHeader(0, 8, 6, 0)); | 
 |   EXPECT_CALL(http2_visitor_, OnPing(17, false)); | 
 |   adapter_->ProcessBytes( | 
 |       TestFrameSequence().ClientPreface().Ping(17).Serialize()); | 
 | } | 
 |  | 
 | TEST_F(OgHttp2AdapterTest, InitialSettings) { | 
 |   DataSavingVisitor client_visitor; | 
 |   OgHttp2Adapter::Options client_options{.perspective = Perspective::kClient}; | 
 |   auto client_adapter = OgHttp2Adapter::Create(client_visitor, client_options); | 
 |  | 
 |   DataSavingVisitor server_visitor; | 
 |   OgHttp2Adapter::Options server_options{.perspective = Perspective::kServer}; | 
 |   auto server_adapter = OgHttp2Adapter::Create(server_visitor, server_options); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client sends the connection preface, including the initial SETTINGS. | 
 |   EXPECT_CALL(client_visitor, OnBeforeFrameSent(SETTINGS, 0, 6, 0x0)); | 
 |   EXPECT_CALL(client_visitor, OnFrameSent(SETTINGS, 0, 6, 0x0, 0)); | 
 |   { | 
 |     int result = client_adapter->Send(); | 
 |     EXPECT_EQ(0, result); | 
 |     absl::string_view data = client_visitor.data(); | 
 |     EXPECT_THAT(data, testing::StartsWith(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |     data.remove_prefix(strlen(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |     EXPECT_THAT(data, EqualsFrames({spdy::SpdyFrameType::SETTINGS})); | 
 |   } | 
 |  | 
 |   // Server sends the connection preface, including the initial SETTINGS. | 
 |   EXPECT_CALL(server_visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x0)); | 
 |   EXPECT_CALL(server_visitor, OnFrameSent(SETTINGS, 0, 0, 0x0, 0)); | 
 |   { | 
 |     int result = server_adapter->Send(); | 
 |     EXPECT_EQ(0, result); | 
 |     absl::string_view data = server_visitor.data(); | 
 |     EXPECT_THAT(data, EqualsFrames({spdy::SpdyFrameType::SETTINGS})); | 
 |   } | 
 |  | 
 |   // Client processes the server's initial bytes, including initial SETTINGS. | 
 |   EXPECT_CALL(client_visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(client_visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(client_visitor, OnSettingsEnd()); | 
 |   { | 
 |     const int64_t result = client_adapter->ProcessBytes(server_visitor.data()); | 
 |     EXPECT_EQ(server_visitor.data().size(), static_cast<size_t>(result)); | 
 |   } | 
 |  | 
 |   // Server processes the client's initial bytes, including initial SETTINGS. | 
 |   EXPECT_CALL(server_visitor, OnFrameHeader(0, 6, SETTINGS, 0)); | 
 |   EXPECT_CALL(server_visitor, OnSettingsStart()); | 
 |   EXPECT_CALL( | 
 |       server_visitor, | 
 |       OnSetting(testing::AllOf( | 
 |           testing::Field(&Http2Setting::id, Http2KnownSettingsId::ENABLE_PUSH), | 
 |           testing::Field(&Http2Setting::value, 0)))) | 
 |       .Times(2); | 
 |   EXPECT_CALL(server_visitor, OnSettingsEnd()); | 
 |   { | 
 |     const int64_t result = server_adapter->ProcessBytes(client_visitor.data()); | 
 |     EXPECT_EQ(client_visitor.data().size(), static_cast<size_t>(result)); | 
 |   } | 
 | } | 
 |  | 
 | TEST_F(OgHttp2AdapterTest, AutomaticSettingsAndPingAcks) { | 
 |   const std::string frames = | 
 |       TestFrameSequence().ClientPreface().Ping(42).Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(http2_visitor_, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(http2_visitor_, OnSettingsStart()); | 
 |   EXPECT_CALL(http2_visitor_, OnSettingsEnd()); | 
 |   // PING | 
 |   EXPECT_CALL(http2_visitor_, OnFrameHeader(0, _, PING, 0)); | 
 |   EXPECT_CALL(http2_visitor_, OnPing(42, false)); | 
 |  | 
 |   const int64_t read_result = adapter_->ProcessBytes(frames); | 
 |   EXPECT_EQ(static_cast<size_t>(read_result), frames.size()); | 
 |  | 
 |   EXPECT_TRUE(adapter_->want_write()); | 
 |  | 
 |   // Server preface (SETTINGS) | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   // SETTINGS ack | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |   // PING ack | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(PING, 0, _, 0x1)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(PING, 0, _, 0x1, 0)); | 
 |  | 
 |   int send_result = adapter_->Send(); | 
 |   EXPECT_EQ(0, send_result); | 
 |   EXPECT_THAT( | 
 |       http2_visitor_.data(), | 
 |       EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                     spdy::SpdyFrameType::SETTINGS, spdy::SpdyFrameType::PING})); | 
 | } | 
 |  | 
 | TEST_F(OgHttp2AdapterTest, AutomaticPingAcksDisabled) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer, | 
 |                                   .auto_ping_ack = false}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   const std::string frames = | 
 |       TestFrameSequence().ClientPreface().Ping(42).Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |   // PING | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, _, PING, 0)); | 
 |   EXPECT_CALL(visitor, OnPing(42, false)); | 
 |  | 
 |   const int64_t read_result = adapter->ProcessBytes(frames); | 
 |   EXPECT_EQ(static_cast<size_t>(read_result), frames.size()); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   // Server preface (SETTINGS) | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   // SETTINGS ack | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |   // No PING ack expected because automatic PING acks are disabled. | 
 |  | 
 |   int send_result = adapter->Send(); | 
 |   EXPECT_EQ(0, send_result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::SETTINGS})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterClientTest, ClientHandles100Headers) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kClient}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   const std::vector<const Header> headers1 = | 
 |       ToHeaders({{":method", "GET"}, | 
 |                  {":scheme", "http"}, | 
 |                  {":authority", "example.com"}, | 
 |                  {":path", "/this/is/request/one"}}); | 
 |  | 
 |   const int32_t stream_id1 = adapter->SubmitRequest(headers1, nullptr, nullptr); | 
 |   ASSERT_GT(stream_id1, 0); | 
 |   QUICHE_LOG(INFO) << "Created stream: " << stream_id1; | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, stream_id1, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, stream_id1, _, 0x5, 0)); | 
 |  | 
 |   int result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::string stream_frames = | 
 |       TestFrameSequence() | 
 |           .ServerPreface() | 
 |           .Headers(1, {{":status", "100"}}, | 
 |                    /*fin=*/false) | 
 |           .Ping(101) | 
 |           .Headers(1, | 
 |                    {{":status", "200"}, | 
 |                     {"server", "my-fake-server"}, | 
 |                     {"date", "Tue, 6 Apr 2021 12:54:01 GMT"}}, | 
 |                    /*fin=*/true) | 
 |           .Serialize(); | 
 |  | 
 |   // Server preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":status", "100")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 8, PING, 0)); | 
 |   EXPECT_CALL(visitor, OnPing(101, false)); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 5)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":status", "200")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, "server", "my-fake-server")); | 
 |   EXPECT_CALL(visitor, | 
 |               OnHeaderForStream(1, "date", "Tue, 6 Apr 2021 12:54:01 GMT")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnEndStream(1)); | 
 |   EXPECT_CALL(visitor, OnCloseStream(1, Http2ErrorCode::HTTP2_NO_ERROR)); | 
 |  | 
 |   const int64_t stream_result = adapter->ProcessBytes(stream_frames); | 
 |   EXPECT_EQ(stream_frames.size(), static_cast<size_t>(stream_result)); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(PING, 0, _, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(PING, 0, _, 0x1, 0)); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::PING})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterClientTest, ClientRejects100HeadersWithFin) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kClient}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   const std::vector<const Header> headers1 = | 
 |       ToHeaders({{":method", "GET"}, | 
 |                  {":scheme", "http"}, | 
 |                  {":authority", "example.com"}, | 
 |                  {":path", "/this/is/request/one"}}); | 
 |  | 
 |   const int32_t stream_id1 = adapter->SubmitRequest(headers1, nullptr, nullptr); | 
 |   ASSERT_GT(stream_id1, 0); | 
 |   QUICHE_LOG(INFO) << "Created stream: " << stream_id1; | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, stream_id1, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, stream_id1, _, 0x5, 0)); | 
 |  | 
 |   int result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::string stream_frames = | 
 |       TestFrameSequence() | 
 |           .ServerPreface() | 
 |           .Headers(1, {{":status", "100"}}, /*fin=*/false) | 
 |           .Headers(1, {{":status", "100"}}, /*fin=*/true) | 
 |           .Serialize(); | 
 |  | 
 |   // Server preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":status", "100")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 5)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":status", "100")); | 
 |   EXPECT_CALL(visitor, | 
 |               OnInvalidFrame( | 
 |                   1, Http2VisitorInterface::InvalidFrameError::kHttpMessaging)); | 
 |   // NOTE: nghttp2 does not deliver the OnEndStream event. | 
 |   EXPECT_CALL(visitor, OnEndStream(1)); | 
 |  | 
 |   const int64_t stream_result = adapter->ProcessBytes(stream_frames); | 
 |   EXPECT_EQ(stream_frames.size(), static_cast<size_t>(stream_result)); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(RST_STREAM, 1, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(RST_STREAM, 1, _, 0x0, 1)); | 
 |   EXPECT_CALL(visitor, OnCloseStream(1, Http2ErrorCode::HTTP2_NO_ERROR)); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::RST_STREAM})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterClientTest, ClientHandlesTrailers) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kClient}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   const std::vector<const Header> headers1 = | 
 |       ToHeaders({{":method", "GET"}, | 
 |                  {":scheme", "http"}, | 
 |                  {":authority", "example.com"}, | 
 |                  {":path", "/this/is/request/one"}}); | 
 |  | 
 |   const char* kSentinel1 = "arbitrary pointer 1"; | 
 |   const int32_t stream_id1 = | 
 |       adapter->SubmitRequest(headers1, nullptr, const_cast<char*>(kSentinel1)); | 
 |   ASSERT_GT(stream_id1, 0); | 
 |   QUICHE_LOG(INFO) << "Created stream: " << stream_id1; | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, stream_id1, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, stream_id1, _, 0x5, 0)); | 
 |  | 
 |   int result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   absl::string_view data = visitor.data(); | 
 |   EXPECT_THAT(data, testing::StartsWith(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   data.remove_prefix(strlen(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   EXPECT_THAT(data, EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                   spdy::SpdyFrameType::HEADERS})); | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::string stream_frames = | 
 |       TestFrameSequence() | 
 |           .ServerPreface() | 
 |           .Headers(1, | 
 |                    {{":status", "200"}, | 
 |                     {"server", "my-fake-server"}, | 
 |                     {"date", "Tue, 6 Apr 2021 12:54:01 GMT"}}, | 
 |                    /*fin=*/false) | 
 |           .Data(1, "This is the response body.") | 
 |           .Headers(1, {{"final-status", "A-OK"}}, | 
 |                    /*fin=*/true) | 
 |           .Serialize(); | 
 |  | 
 |   // Server preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":status", "200")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, "server", "my-fake-server")); | 
 |   EXPECT_CALL(visitor, | 
 |               OnHeaderForStream(1, "date", "Tue, 6 Apr 2021 12:54:01 GMT")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, 26, DATA, 0)); | 
 |   EXPECT_CALL(visitor, OnBeginDataForStream(1, 26)); | 
 |   EXPECT_CALL(visitor, OnDataForStream(1, "This is the response body.")); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 5)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, "final-status", "A-OK")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnEndStream(1)); | 
 |   EXPECT_CALL(visitor, OnCloseStream(1, Http2ErrorCode::HTTP2_NO_ERROR)); | 
 |  | 
 |   const int64_t stream_result = adapter->ProcessBytes(stream_frames); | 
 |   EXPECT_EQ(stream_frames.size(), static_cast<size_t>(stream_result)); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x1, 0)); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterClientTest, ClientHandlesMetadata) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kClient}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   const std::vector<const Header> headers1 = | 
 |       ToHeaders({{":method", "GET"}, | 
 |                  {":scheme", "http"}, | 
 |                  {":authority", "example.com"}, | 
 |                  {":path", "/this/is/request/one"}}); | 
 |  | 
 |   const char* kSentinel1 = "arbitrary pointer 1"; | 
 |   const int32_t stream_id1 = | 
 |       adapter->SubmitRequest(headers1, nullptr, const_cast<char*>(kSentinel1)); | 
 |   ASSERT_GT(stream_id1, 0); | 
 |   QUICHE_LOG(INFO) << "Created stream: " << stream_id1; | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, stream_id1, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, stream_id1, _, 0x5, 0)); | 
 |  | 
 |   int result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   absl::string_view data = visitor.data(); | 
 |   EXPECT_THAT(data, testing::StartsWith(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   data.remove_prefix(strlen(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   EXPECT_THAT(data, EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                   spdy::SpdyFrameType::HEADERS})); | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::string stream_frames = | 
 |       TestFrameSequence() | 
 |           .ServerPreface() | 
 |           .Metadata(0, "Example connection metadata") | 
 |           .Headers(1, | 
 |                    {{":status", "200"}, | 
 |                     {"server", "my-fake-server"}, | 
 |                     {"date", "Tue, 6 Apr 2021 12:54:01 GMT"}}, | 
 |                    /*fin=*/false) | 
 |           .Metadata(1, "Example stream metadata") | 
 |           .Data(1, "This is the response body.", true) | 
 |           .Serialize(); | 
 |  | 
 |   // Server preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, _, kMetadataFrameType, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginMetadataForStream(0, _)); | 
 |   EXPECT_CALL(visitor, OnMetadataForStream(0, _)); | 
 |   EXPECT_CALL(visitor, OnMetadataEndForStream(0)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":status", "200")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, "server", "my-fake-server")); | 
 |   EXPECT_CALL(visitor, | 
 |               OnHeaderForStream(1, "date", "Tue, 6 Apr 2021 12:54:01 GMT")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, kMetadataFrameType, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginMetadataForStream(1, _)); | 
 |   EXPECT_CALL(visitor, OnMetadataForStream(1, _)); | 
 |   EXPECT_CALL(visitor, OnMetadataEndForStream(1)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, 26, DATA, 1)); | 
 |   EXPECT_CALL(visitor, OnBeginDataForStream(1, 26)); | 
 |   EXPECT_CALL(visitor, OnDataForStream(1, "This is the response body.")); | 
 |   EXPECT_CALL(visitor, OnEndStream(1)); | 
 |   EXPECT_CALL(visitor, OnCloseStream(1, Http2ErrorCode::HTTP2_NO_ERROR)); | 
 |  | 
 |   const int64_t stream_result = adapter->ProcessBytes(stream_frames); | 
 |   EXPECT_EQ(stream_frames.size(), static_cast<size_t>(stream_result)); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x1, 0)); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterClientTest, ClientHandlesMetadataWithError) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kClient}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   const std::vector<const Header> headers1 = | 
 |       ToHeaders({{":method", "GET"}, | 
 |                  {":scheme", "http"}, | 
 |                  {":authority", "example.com"}, | 
 |                  {":path", "/this/is/request/one"}}); | 
 |  | 
 |   const char* kSentinel1 = "arbitrary pointer 1"; | 
 |   const int32_t stream_id1 = | 
 |       adapter->SubmitRequest(headers1, nullptr, const_cast<char*>(kSentinel1)); | 
 |   ASSERT_GT(stream_id1, 0); | 
 |   QUICHE_LOG(INFO) << "Created stream: " << stream_id1; | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, stream_id1, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, stream_id1, _, 0x5, 0)); | 
 |  | 
 |   int result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::string stream_frames = | 
 |       TestFrameSequence() | 
 |           .ServerPreface() | 
 |           .Metadata(0, "Example connection metadata") | 
 |           .Headers(1, | 
 |                    {{":status", "200"}, | 
 |                     {"server", "my-fake-server"}, | 
 |                     {"date", "Tue, 6 Apr 2021 12:54:01 GMT"}}, | 
 |                    /*fin=*/false) | 
 |           .Metadata(1, "Example stream metadata") | 
 |           .Data(1, "This is the response body.", true) | 
 |           .Serialize(); | 
 |  | 
 |   // Server preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, _, kMetadataFrameType, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginMetadataForStream(0, _)); | 
 |   EXPECT_CALL(visitor, OnMetadataForStream(0, _)); | 
 |   EXPECT_CALL(visitor, OnMetadataEndForStream(0)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":status", "200")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, "server", "my-fake-server")); | 
 |   EXPECT_CALL(visitor, | 
 |               OnHeaderForStream(1, "date", "Tue, 6 Apr 2021 12:54:01 GMT")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, kMetadataFrameType, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginMetadataForStream(1, _)); | 
 |   EXPECT_CALL(visitor, OnMetadataForStream(1, _)) | 
 |       .WillOnce(testing::Return(false)); | 
 |   // Remaining frames are not processed due to the error. | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kParseError)); | 
 |  | 
 |   const int64_t stream_result = adapter->ProcessBytes(stream_frames); | 
 |   // Negative integer returned to indicate an error. | 
 |   EXPECT_LT(stream_result, 0); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x1, 0)); | 
 |  | 
 |   EXPECT_FALSE(adapter->want_read()); | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterClientTest, ClientRstStreamWhileHandlingHeaders) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kClient}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   const std::vector<const Header> headers1 = | 
 |       ToHeaders({{":method", "GET"}, | 
 |                  {":scheme", "http"}, | 
 |                  {":authority", "example.com"}, | 
 |                  {":path", "/this/is/request/one"}}); | 
 |  | 
 |   const char* kSentinel1 = "arbitrary pointer 1"; | 
 |   const int32_t stream_id1 = | 
 |       adapter->SubmitRequest(headers1, nullptr, const_cast<char*>(kSentinel1)); | 
 |   ASSERT_GT(stream_id1, 0); | 
 |   QUICHE_LOG(INFO) << "Created stream: " << stream_id1; | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, stream_id1, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, stream_id1, _, 0x5, 0)); | 
 |  | 
 |   int result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   absl::string_view data = visitor.data(); | 
 |   EXPECT_THAT(data, testing::StartsWith(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   data.remove_prefix(strlen(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   EXPECT_THAT(data, EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                   spdy::SpdyFrameType::HEADERS})); | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::string stream_frames = | 
 |       TestFrameSequence() | 
 |           .ServerPreface() | 
 |           .Headers(1, | 
 |                    {{":status", "200"}, | 
 |                     {"server", "my-fake-server"}, | 
 |                     {"date", "Tue, 6 Apr 2021 12:54:01 GMT"}}, | 
 |                    /*fin=*/false) | 
 |           .Data(1, "This is the response body.") | 
 |           .Serialize(); | 
 |  | 
 |   // Server preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":status", "200")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, "server", "my-fake-server")); | 
 |   EXPECT_CALL(visitor, | 
 |               OnHeaderForStream(1, "date", "Tue, 6 Apr 2021 12:54:01 GMT")) | 
 |       .WillOnce(testing::DoAll( | 
 |           testing::InvokeWithoutArgs([&adapter]() { | 
 |             adapter->SubmitRst(1, Http2ErrorCode::REFUSED_STREAM); | 
 |           }), | 
 |           testing::Return(Http2VisitorInterface::HEADER_RST_STREAM))); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, DATA, 0)); | 
 |   EXPECT_CALL(visitor, OnBeginDataForStream(1, _)); | 
 |   EXPECT_CALL(visitor, OnDataForStream(1, "This is the response body.")); | 
 |  | 
 |   const int64_t stream_result = adapter->ProcessBytes(stream_frames); | 
 |   EXPECT_EQ(stream_frames.size(), static_cast<size_t>(stream_result)); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(RST_STREAM, stream_id1, 4, 0x0)); | 
 |   EXPECT_CALL(visitor, | 
 |               OnFrameSent(RST_STREAM, stream_id1, 4, 0x0, | 
 |                           static_cast<int>(Http2ErrorCode::REFUSED_STREAM))); | 
 |   EXPECT_CALL(visitor, OnCloseStream(1, Http2ErrorCode::HTTP2_NO_ERROR)); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::RST_STREAM})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterClientTest, ClientConnectionErrorWhileHandlingHeaders) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kClient}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   const std::vector<const Header> headers1 = | 
 |       ToHeaders({{":method", "GET"}, | 
 |                  {":scheme", "http"}, | 
 |                  {":authority", "example.com"}, | 
 |                  {":path", "/this/is/request/one"}}); | 
 |  | 
 |   const char* kSentinel1 = "arbitrary pointer 1"; | 
 |   const int32_t stream_id1 = | 
 |       adapter->SubmitRequest(headers1, nullptr, const_cast<char*>(kSentinel1)); | 
 |   ASSERT_GT(stream_id1, 0); | 
 |   QUICHE_LOG(INFO) << "Created stream: " << stream_id1; | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, stream_id1, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, stream_id1, _, 0x5, 0)); | 
 |  | 
 |   int result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   absl::string_view data = visitor.data(); | 
 |   EXPECT_THAT(data, testing::StartsWith(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   data.remove_prefix(strlen(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   EXPECT_THAT(data, EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                   spdy::SpdyFrameType::HEADERS})); | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::string stream_frames = | 
 |       TestFrameSequence() | 
 |           .ServerPreface() | 
 |           .Headers(1, | 
 |                    {{":status", "200"}, | 
 |                     {"server", "my-fake-server"}, | 
 |                     {"date", "Tue, 6 Apr 2021 12:54:01 GMT"}}, | 
 |                    /*fin=*/false) | 
 |           .Data(1, "This is the response body.") | 
 |           .Serialize(); | 
 |  | 
 |   // Server preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":status", "200")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, "server", "my-fake-server")); | 
 |   EXPECT_CALL(visitor, | 
 |               OnHeaderForStream(1, "date", "Tue, 6 Apr 2021 12:54:01 GMT")) | 
 |       .WillOnce( | 
 |           testing::Return(Http2VisitorInterface::HEADER_CONNECTION_ERROR)); | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kHeaderError)); | 
 |  | 
 |   const int64_t stream_result = adapter->ProcessBytes(stream_frames); | 
 |   EXPECT_LT(stream_result, 0); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterClientTest, ClientConnectionErrorWhileHandlingHeadersOnly) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kClient}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   const std::vector<const Header> headers1 = | 
 |       ToHeaders({{":method", "GET"}, | 
 |                  {":scheme", "http"}, | 
 |                  {":authority", "example.com"}, | 
 |                  {":path", "/this/is/request/one"}}); | 
 |  | 
 |   const char* kSentinel1 = "arbitrary pointer 1"; | 
 |   const int32_t stream_id1 = | 
 |       adapter->SubmitRequest(headers1, nullptr, const_cast<char*>(kSentinel1)); | 
 |   ASSERT_GT(stream_id1, 0); | 
 |   QUICHE_LOG(INFO) << "Created stream: " << stream_id1; | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, stream_id1, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, stream_id1, _, 0x5, 0)); | 
 |  | 
 |   int result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   absl::string_view data = visitor.data(); | 
 |   EXPECT_THAT(data, testing::StartsWith(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   data.remove_prefix(strlen(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   EXPECT_THAT(data, EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                   spdy::SpdyFrameType::HEADERS})); | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::string stream_frames = | 
 |       TestFrameSequence() | 
 |           .ServerPreface() | 
 |           .Headers(1, | 
 |                    {{":status", "200"}, | 
 |                     {"server", "my-fake-server"}, | 
 |                     {"date", "Tue, 6 Apr 2021 12:54:01 GMT"}}, | 
 |                    /*fin=*/true) | 
 |           .Serialize(); | 
 |  | 
 |   // Server preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 5)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":status", "200")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, "server", "my-fake-server")); | 
 |   EXPECT_CALL(visitor, | 
 |               OnHeaderForStream(1, "date", "Tue, 6 Apr 2021 12:54:01 GMT")) | 
 |       .WillOnce( | 
 |           testing::Return(Http2VisitorInterface::HEADER_CONNECTION_ERROR)); | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kHeaderError)); | 
 |  | 
 |   const int64_t stream_result = adapter->ProcessBytes(stream_frames); | 
 |   EXPECT_LT(stream_result, 0); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterClientTest, ClientRejectsHeaders) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kClient}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   const std::vector<const Header> headers1 = | 
 |       ToHeaders({{":method", "GET"}, | 
 |                  {":scheme", "http"}, | 
 |                  {":authority", "example.com"}, | 
 |                  {":path", "/this/is/request/one"}}); | 
 |  | 
 |   const char* kSentinel1 = "arbitrary pointer 1"; | 
 |   const int32_t stream_id1 = | 
 |       adapter->SubmitRequest(headers1, nullptr, const_cast<char*>(kSentinel1)); | 
 |   ASSERT_GT(stream_id1, 0); | 
 |   QUICHE_LOG(INFO) << "Created stream: " << stream_id1; | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, stream_id1, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, stream_id1, _, 0x5, 0)); | 
 |  | 
 |   int result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   absl::string_view data = visitor.data(); | 
 |   EXPECT_THAT(data, testing::StartsWith(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   data.remove_prefix(strlen(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   EXPECT_THAT(data, EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                   spdy::SpdyFrameType::HEADERS})); | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::string stream_frames = | 
 |       TestFrameSequence() | 
 |           .ServerPreface() | 
 |           .Headers(1, | 
 |                    {{":status", "200"}, | 
 |                     {"server", "my-fake-server"}, | 
 |                     {"date", "Tue, 6 Apr 2021 12:54:01 GMT"}}, | 
 |                    /*fin=*/false) | 
 |           .Data(1, "This is the response body.") | 
 |           .Serialize(); | 
 |  | 
 |   // Server preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)) | 
 |       .WillOnce(testing::Return(false)); | 
 |   // Rejecting headers leads to a connection error. | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kHeaderError)); | 
 |  | 
 |   const int64_t stream_result = adapter->ProcessBytes(stream_frames); | 
 |   EXPECT_LT(stream_result, 0); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS})); | 
 | } | 
 |  | 
 | // TODO(birenroy): Validate headers and re-enable this test. The library should | 
 | // invoke OnErrorDebug() with an error message for the invalid header. The | 
 | // library should also invoke OnInvalidFrame() for the invalid HEADERS frame. | 
 | TEST(OgHttp2AdapterClientTest, DISABLED_ClientHandlesInvalidTrailers) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kClient}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   const std::vector<const Header> headers1 = | 
 |       ToHeaders({{":method", "GET"}, | 
 |                  {":scheme", "http"}, | 
 |                  {":authority", "example.com"}, | 
 |                  {":path", "/this/is/request/one"}}); | 
 |  | 
 |   const char* kSentinel1 = "arbitrary pointer 1"; | 
 |   const int32_t stream_id1 = | 
 |       adapter->SubmitRequest(headers1, nullptr, const_cast<char*>(kSentinel1)); | 
 |   ASSERT_GT(stream_id1, 0); | 
 |   QUICHE_LOG(INFO) << "Created stream: " << stream_id1; | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, stream_id1, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, stream_id1, _, 0x5, 0)); | 
 |  | 
 |   int result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   absl::string_view data = visitor.data(); | 
 |   EXPECT_THAT(data, testing::StartsWith(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   data.remove_prefix(strlen(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   EXPECT_THAT(data, EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                   spdy::SpdyFrameType::HEADERS})); | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::string stream_frames = | 
 |       TestFrameSequence() | 
 |           .ServerPreface() | 
 |           .Headers(1, | 
 |                    {{":status", "200"}, | 
 |                     {"server", "my-fake-server"}, | 
 |                     {"date", "Tue, 6 Apr 2021 12:54:01 GMT"}}, | 
 |                    /*fin=*/false) | 
 |           .Data(1, "This is the response body.") | 
 |           .Headers(1, {{":bad-status", "9000"}}, | 
 |                    /*fin=*/true) | 
 |           .Serialize(); | 
 |  | 
 |   // Server preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":status", "200")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, "server", "my-fake-server")); | 
 |   EXPECT_CALL(visitor, | 
 |               OnHeaderForStream(1, "date", "Tue, 6 Apr 2021 12:54:01 GMT")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, 26, DATA, 0)); | 
 |   EXPECT_CALL(visitor, OnBeginDataForStream(1, 26)); | 
 |   EXPECT_CALL(visitor, OnDataForStream(1, "This is the response body.")); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 5)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |  | 
 |   // Bad status trailer will cause a PROTOCOL_ERROR. The header is never | 
 |   // delivered in an OnHeaderForStream callback. | 
 |  | 
 |   const int64_t stream_result = adapter->ProcessBytes(stream_frames); | 
 |   EXPECT_EQ(stream_frames.size(), static_cast<size_t>(stream_result)); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(RST_STREAM, stream_id1, 4, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(RST_STREAM, stream_id1, 4, 0x0, 1)); | 
 |   EXPECT_CALL(visitor, OnCloseStream(1, Http2ErrorCode::PROTOCOL_ERROR)); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::RST_STREAM})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterClientTest, ClientFailsOnGoAway) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kClient}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   const std::vector<const Header> headers1 = | 
 |       ToHeaders({{":method", "GET"}, | 
 |                  {":scheme", "http"}, | 
 |                  {":authority", "example.com"}, | 
 |                  {":path", "/this/is/request/one"}}); | 
 |  | 
 |   const char* kSentinel1 = "arbitrary pointer 1"; | 
 |   const int32_t stream_id1 = | 
 |       adapter->SubmitRequest(headers1, nullptr, const_cast<char*>(kSentinel1)); | 
 |   ASSERT_GT(stream_id1, 0); | 
 |   QUICHE_LOG(INFO) << "Created stream: " << stream_id1; | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, stream_id1, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, stream_id1, _, 0x5, 0)); | 
 |  | 
 |   int result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   absl::string_view data = visitor.data(); | 
 |   EXPECT_THAT(data, testing::StartsWith(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   data.remove_prefix(strlen(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   EXPECT_THAT(data, EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                   spdy::SpdyFrameType::HEADERS})); | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::string stream_frames = | 
 |       TestFrameSequence() | 
 |           .ServerPreface() | 
 |           .Headers(1, | 
 |                    {{":status", "200"}, | 
 |                     {"server", "my-fake-server"}, | 
 |                     {"date", "Tue, 6 Apr 2021 12:54:01 GMT"}}, | 
 |                    /*fin=*/false) | 
 |           .GoAway(1, Http2ErrorCode::INTERNAL_ERROR, "indigestion") | 
 |           .Data(1, "This is the response body.") | 
 |           .Serialize(); | 
 |  | 
 |   // Server preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":status", "200")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, "server", "my-fake-server")); | 
 |   EXPECT_CALL(visitor, | 
 |               OnHeaderForStream(1, "date", "Tue, 6 Apr 2021 12:54:01 GMT")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, _, GOAWAY, 0)); | 
 |   // TODO(birenroy): Pass the GOAWAY opaque data through the oghttp2 stack. | 
 |   EXPECT_CALL(visitor, OnGoAway(1, Http2ErrorCode::INTERNAL_ERROR, "")) | 
 |       .WillOnce(testing::Return(false)); | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kParseError)); | 
 |  | 
 |   const int64_t stream_result = adapter->ProcessBytes(stream_frames); | 
 |   EXPECT_LT(stream_result, 0); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterClientTest, ClientObeysMaxConcurrentStreams) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kClient}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |  | 
 |   // Even though the user has not queued any frames for the session, it should | 
 |   // still send the connection preface. | 
 |   int result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   absl::string_view serialized = visitor.data(); | 
 |   EXPECT_THAT(serialized, | 
 |               testing::StartsWith(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   serialized.remove_prefix(strlen(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   // Initial SETTINGS. | 
 |   EXPECT_THAT(serialized, EqualsFrames({SpdyFrameType::SETTINGS})); | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::string initial_frames = | 
 |       TestFrameSequence() | 
 |           .ServerPreface({{.id = MAX_CONCURRENT_STREAMS, .value = 1}}) | 
 |           .Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Server preface (SETTINGS with MAX_CONCURRENT_STREAMS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 6, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSetting); | 
 |   // TODO(diannahu): Remove this duplicate call with a separate | 
 |   // ExtensionVisitorInterface implementation. | 
 |   EXPECT_CALL(visitor, OnSetting); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   const int64_t initial_result = adapter->ProcessBytes(initial_frames); | 
 |   EXPECT_EQ(initial_frames.size(), static_cast<size_t>(initial_result)); | 
 |  | 
 |   // Session will want to write a SETTINGS ack. | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x1, 0)); | 
 |  | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({SpdyFrameType::SETTINGS})); | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::string kBody = "This is an example request body."; | 
 |   auto body1 = absl::make_unique<TestDataFrameSource>(visitor, true); | 
 |   body1->AppendPayload(kBody); | 
 |   body1->EndData(); | 
 |   const int stream_id = | 
 |       adapter->SubmitRequest(ToHeaders({{":method", "POST"}, | 
 |                                         {":scheme", "http"}, | 
 |                                         {":authority", "example.com"}, | 
 |                                         {":path", "/this/is/request/one"}}), | 
 |                              std::move(body1), nullptr); | 
 |   EXPECT_GT(stream_id, 0); | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, stream_id, _, 0x4)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, stream_id, _, 0x4, 0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(DATA, stream_id, _, 0x1, 0)); | 
 |  | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::HEADERS, | 
 |                                             spdy::SpdyFrameType::DATA})); | 
 |   EXPECT_THAT(visitor.data(), testing::HasSubstr(kBody)); | 
 |   visitor.Clear(); | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 |  | 
 |   const int next_stream_id = | 
 |       adapter->SubmitRequest(ToHeaders({{":method", "POST"}, | 
 |                                         {":scheme", "http"}, | 
 |                                         {":authority", "example.com"}, | 
 |                                         {":path", "/this/is/request/two"}}), | 
 |                              nullptr, nullptr); | 
 |  | 
 |   // A new pending stream is created, but because of MAX_CONCURRENT_STREAMS, the | 
 |   // session should not want to write it at the moment. | 
 |   EXPECT_GT(next_stream_id, stream_id); | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 |  | 
 |   const std::string stream_frames = | 
 |       TestFrameSequence() | 
 |           .Headers(stream_id, | 
 |                    {{":status", "200"}, | 
 |                     {"server", "my-fake-server"}, | 
 |                     {"date", "Tue, 6 Apr 2021 12:54:01 GMT"}}, | 
 |                    /*fin=*/false) | 
 |           .Data(stream_id, "This is the response body.", /*fin=*/true) | 
 |           .Serialize(); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(stream_id, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(stream_id)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(stream_id, ":status", "200")); | 
 |   EXPECT_CALL(visitor, | 
 |               OnHeaderForStream(stream_id, "server", "my-fake-server")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(stream_id, "date", | 
 |                                          "Tue, 6 Apr 2021 12:54:01 GMT")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(stream_id)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(stream_id, 26, DATA, 0x1)); | 
 |   EXPECT_CALL(visitor, OnBeginDataForStream(stream_id, 26)); | 
 |   EXPECT_CALL(visitor, | 
 |               OnDataForStream(stream_id, "This is the response body.")); | 
 |   EXPECT_CALL(visitor, OnEndStream(stream_id)); | 
 |   EXPECT_CALL(visitor, | 
 |               OnCloseStream(stream_id, Http2ErrorCode::HTTP2_NO_ERROR)); | 
 |  | 
 |   // The first stream should close, which should make the session want to write | 
 |   // the next stream. | 
 |   const int64_t stream_result = adapter->ProcessBytes(stream_frames); | 
 |   EXPECT_EQ(stream_frames.size(), static_cast<size_t>(stream_result)); | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, next_stream_id, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, next_stream_id, _, 0x5, 0)); | 
 |  | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |  | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::HEADERS})); | 
 |   visitor.Clear(); | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterClientTest, FailureSendingConnectionPreface) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kClient}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   visitor.set_has_write_error(); | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kSendError)); | 
 |  | 
 |   int result = adapter->Send(); | 
 |   EXPECT_EQ(result, Http2VisitorInterface::kSendError); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterClientTest, ClientForbidsPushPromise) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kClient}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |  | 
 |   int write_result = adapter->Send(); | 
 |   EXPECT_EQ(0, write_result); | 
 |   absl::string_view data = visitor.data(); | 
 |   EXPECT_THAT(data, testing::StartsWith(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   data.remove_prefix(strlen(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   EXPECT_THAT(data, EqualsFrames({spdy::SpdyFrameType::SETTINGS})); | 
 |  | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::vector<const Header> headers = | 
 |       ToHeaders({{":method", "GET"}, | 
 |                  {":scheme", "http"}, | 
 |                  {":authority", "example.com"}, | 
 |                  {":path", "/this/is/request/one"}}); | 
 |   const int32_t stream_id = adapter->SubmitRequest(headers, nullptr, nullptr); | 
 |   ASSERT_GT(stream_id, 0); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, stream_id, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, stream_id, _, 0x5, 0)); | 
 |   write_result = adapter->Send(); | 
 |   EXPECT_EQ(0, write_result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::HEADERS})); | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::vector<const Header> push_headers = | 
 |       ToHeaders({{":method", "GET"}, | 
 |                  {":scheme", "http"}, | 
 |                  {":authority", "example.com"}, | 
 |                  {":path", "/this/is/request/push"}}); | 
 |   const std::string frames = TestFrameSequence() | 
 |                                  .ServerPreface() | 
 |                                  .SettingsAck() | 
 |                                  .PushPromise(stream_id, 2, push_headers) | 
 |                                  .Serialize(); | 
 |  | 
 |   // Server preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   // SETTINGS ack (to acknowledge PUSH_ENABLED=0, though this is not explicitly | 
 |   // required for OgHttp2: should it be?) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0x1)); | 
 |   EXPECT_CALL(visitor, OnSettingsAck); | 
 |  | 
 |   // The PUSH_PROMISE is treated as an invalid frame. | 
 |   EXPECT_CALL(visitor, OnFrameHeader(stream_id, _, PUSH_PROMISE, _)); | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kInvalidPushPromise)); | 
 |  | 
 |   const int64_t read_result = adapter->ProcessBytes(frames); | 
 |   EXPECT_LT(read_result, 0); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x1, 0)); | 
 |  | 
 |   int result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   // SETTINGS ack. | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterClientTest, ClientForbidsPushStream) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kClient}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |  | 
 |   int write_result = adapter->Send(); | 
 |   EXPECT_EQ(0, write_result); | 
 |   absl::string_view data = visitor.data(); | 
 |   EXPECT_THAT(data, testing::StartsWith(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   data.remove_prefix(strlen(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   EXPECT_THAT(data, EqualsFrames({spdy::SpdyFrameType::SETTINGS})); | 
 |  | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::vector<const Header> headers = | 
 |       ToHeaders({{":method", "GET"}, | 
 |                  {":scheme", "http"}, | 
 |                  {":authority", "example.com"}, | 
 |                  {":path", "/this/is/request/one"}}); | 
 |   const int32_t stream_id = adapter->SubmitRequest(headers, nullptr, nullptr); | 
 |   ASSERT_GT(stream_id, 0); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, stream_id, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, stream_id, _, 0x5, 0)); | 
 |   write_result = adapter->Send(); | 
 |   EXPECT_EQ(0, write_result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::HEADERS})); | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::string frames = | 
 |       TestFrameSequence() | 
 |           .ServerPreface() | 
 |           .SettingsAck() | 
 |           .Headers(2, | 
 |                    {{":status", "200"}, | 
 |                     {"server", "my-fake-server"}, | 
 |                     {"date", "Tue, 6 Apr 2021 12:54:01 GMT"}}, | 
 |                    /*fin=*/true) | 
 |           .Serialize(); | 
 |  | 
 |   // Server preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   // SETTINGS ack (to acknowledge PUSH_ENABLED=0, though this is not explicitly | 
 |   // required for OgHttp2: should it be?) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0x1)); | 
 |   EXPECT_CALL(visitor, OnSettingsAck); | 
 |  | 
 |   // The push HEADERS are invalid. | 
 |   EXPECT_CALL(visitor, OnFrameHeader(2, _, HEADERS, _)); | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kInvalidNewStreamId)); | 
 |  | 
 |   const int64_t read_result = adapter->ProcessBytes(frames); | 
 |   EXPECT_LT(read_result, 0); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x1, 0)); | 
 |  | 
 |   int result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   // SETTINGS ack. | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterClientTest, ClientReceivesDataOnClosedStream) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kClient}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   int result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   absl::string_view data = visitor.data(); | 
 |   EXPECT_THAT(data, testing::StartsWith(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   data.remove_prefix(strlen(spdy::kHttp2ConnectionHeaderPrefix)); | 
 |   EXPECT_THAT(data, EqualsFrames({spdy::SpdyFrameType::SETTINGS})); | 
 |   visitor.Clear(); | 
 |  | 
 |   const std::string initial_frames = | 
 |       TestFrameSequence().ServerPreface().Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Server preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   const int64_t initial_result = adapter->ProcessBytes(initial_frames); | 
 |   EXPECT_EQ(initial_frames.size(), static_cast<size_t>(initial_result)); | 
 |  | 
 |   // Client SETTINGS ack | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |  | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS})); | 
 |   visitor.Clear(); | 
 |  | 
 |   // Let the client open a stream with a request. | 
 |   int stream_id = | 
 |       adapter->SubmitRequest(ToHeaders({{":method", "GET"}, | 
 |                                         {":scheme", "http"}, | 
 |                                         {":authority", "example.com"}, | 
 |                                         {":path", "/this/is/request/one"}}), | 
 |                              nullptr, nullptr); | 
 |   EXPECT_GT(stream_id, 0); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, stream_id, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, stream_id, _, 0x5, 0)); | 
 |  | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::HEADERS})); | 
 |   visitor.Clear(); | 
 |  | 
 |   // Let the client RST_STREAM the stream it opened. | 
 |   adapter->SubmitRst(stream_id, Http2ErrorCode::CANCEL); | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(RST_STREAM, stream_id, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(RST_STREAM, stream_id, _, 0x0, | 
 |                                    static_cast<int>(Http2ErrorCode::CANCEL))); | 
 |   EXPECT_CALL(visitor, | 
 |               OnCloseStream(stream_id, Http2ErrorCode::HTTP2_NO_ERROR)); | 
 |  | 
 |   result = adapter->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::RST_STREAM})); | 
 |   visitor.Clear(); | 
 |  | 
 |   // Let the server send a response on the stream. (It might not have received | 
 |   // the RST_STREAM yet.) | 
 |   const std::string response_frames = | 
 |       TestFrameSequence() | 
 |           .Headers(stream_id, | 
 |                    {{":status", "200"}, | 
 |                     {"server", "my-fake-server"}, | 
 |                     {"date", "Tue, 6 Apr 2021 12:54:01 GMT"}}, | 
 |                    /*fin=*/false) | 
 |           .Data(stream_id, "This is the response body.", /*fin=*/true) | 
 |           .Serialize(); | 
 |  | 
 |   // The visitor gets notified about the HEADERS frame and DATA frame for the | 
 |   // closed stream with no further processing on either frame. | 
 |   EXPECT_CALL(visitor, OnFrameHeader(stream_id, _, HEADERS, 0x4)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(stream_id, _, DATA, 0x1)); | 
 |  | 
 |   const int64_t response_result = adapter->ProcessBytes(response_frames); | 
 |   EXPECT_EQ(response_frames.size(), static_cast<size_t>(response_result)); | 
 |  | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 | } | 
 |  | 
 | TEST_F(OgHttp2AdapterTest, SubmitMetadata) { | 
 |   auto source = absl::make_unique<TestMetadataSource>(ToHeaderBlock(ToHeaders( | 
 |       {{"query-cost", "is too darn high"}, {"secret-sauce", "hollandaise"}}))); | 
 |   adapter_->SubmitMetadata(1, 16384u, std::move(source)); | 
 |   EXPECT_TRUE(adapter_->want_write()); | 
 |  | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(kMetadataFrameType, 1, _, 0x4)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(kMetadataFrameType, 1, _, 0x4, 0)); | 
 |  | 
 |   int result = adapter_->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT( | 
 |       http2_visitor_.data(), | 
 |       EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                     static_cast<spdy::SpdyFrameType>(kMetadataFrameType)})); | 
 |   EXPECT_FALSE(adapter_->want_write()); | 
 | } | 
 |  | 
 | TEST_F(OgHttp2AdapterTest, SubmitMetadataMultipleFrames) { | 
 |   const auto kLargeValue = std::string(63 * 1024, 'a'); | 
 |   auto source = absl::make_unique<TestMetadataSource>( | 
 |       ToHeaderBlock(ToHeaders({{"large-value", kLargeValue}}))); | 
 |   adapter_->SubmitMetadata(1, 16384u, std::move(source)); | 
 |   EXPECT_TRUE(adapter_->want_write()); | 
 |  | 
 |   testing::InSequence seq; | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(kMetadataFrameType, 1, _, 0x0)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(kMetadataFrameType, 1, _, 0x0, 0)); | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(kMetadataFrameType, 1, _, 0x0)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(kMetadataFrameType, 1, _, 0x0, 0)); | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(kMetadataFrameType, 1, _, 0x0)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(kMetadataFrameType, 1, _, 0x0, 0)); | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(kMetadataFrameType, 1, _, 0x4)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(kMetadataFrameType, 1, _, 0x4, 0)); | 
 |  | 
 |   int result = adapter_->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   absl::string_view serialized = http2_visitor_.data(); | 
 |   EXPECT_THAT( | 
 |       serialized, | 
 |       EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                     static_cast<spdy::SpdyFrameType>(kMetadataFrameType), | 
 |                     static_cast<spdy::SpdyFrameType>(kMetadataFrameType), | 
 |                     static_cast<spdy::SpdyFrameType>(kMetadataFrameType), | 
 |                     static_cast<spdy::SpdyFrameType>(kMetadataFrameType)})); | 
 |   EXPECT_FALSE(adapter_->want_write()); | 
 | } | 
 |  | 
 | TEST_F(OgHttp2AdapterTest, SubmitConnectionMetadata) { | 
 |   auto source = absl::make_unique<TestMetadataSource>(ToHeaderBlock(ToHeaders( | 
 |       {{"query-cost", "is too darn high"}, {"secret-sauce", "hollandaise"}}))); | 
 |   adapter_->SubmitMetadata(0, 16384u, std::move(source)); | 
 |   EXPECT_TRUE(adapter_->want_write()); | 
 |  | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(kMetadataFrameType, 0, _, 0x4)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(kMetadataFrameType, 0, _, 0x4, 0)); | 
 |  | 
 |   int result = adapter_->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT( | 
 |       http2_visitor_.data(), | 
 |       EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                     static_cast<spdy::SpdyFrameType>(kMetadataFrameType)})); | 
 |   EXPECT_FALSE(adapter_->want_write()); | 
 | } | 
 |  | 
 | TEST_F(OgHttp2AdapterTest, GetSendWindowSize) { | 
 |   const int peer_window = adapter_->GetSendWindowSize(); | 
 |   EXPECT_EQ(peer_window, kInitialFlowControlWindowSize); | 
 | } | 
 |  | 
 | TEST_F(OgHttp2AdapterTest, MarkDataConsumedForStream) { | 
 |   EXPECT_QUICHE_BUG(adapter_->MarkDataConsumedForStream(1, 11), | 
 |                     "Stream 1 not found"); | 
 | } | 
 |  | 
 | TEST_F(OgHttp2AdapterTest, TestSerialize) { | 
 |   EXPECT_TRUE(adapter_->want_read()); | 
 |   EXPECT_FALSE(adapter_->want_write()); | 
 |  | 
 |   adapter_->SubmitSettings( | 
 |       {{HEADER_TABLE_SIZE, 128}, {MAX_FRAME_SIZE, 128 << 10}}); | 
 |   EXPECT_TRUE(adapter_->want_write()); | 
 |  | 
 |   adapter_->SubmitPriorityForStream(3, 1, 255, true); | 
 |   adapter_->SubmitRst(3, Http2ErrorCode::CANCEL); | 
 |   adapter_->SubmitPing(42); | 
 |   adapter_->SubmitGoAway(13, Http2ErrorCode::HTTP2_NO_ERROR, ""); | 
 |   adapter_->SubmitWindowUpdate(3, 127); | 
 |   EXPECT_TRUE(adapter_->want_write()); | 
 |  | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(PRIORITY, 3, _, 0x0)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(PRIORITY, 3, _, 0x0, 0)); | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(RST_STREAM, 3, _, 0x0)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(RST_STREAM, 3, _, 0x0, 0x8)); | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(PING, 0, _, 0x0)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(PING, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(GOAWAY, 0, _, 0x0)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(GOAWAY, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(WINDOW_UPDATE, 3, _, 0x0)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(WINDOW_UPDATE, 3, _, 0x0, 0)); | 
 |  | 
 |   int result = adapter_->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_THAT( | 
 |       http2_visitor_.data(), | 
 |       EqualsFrames({SpdyFrameType::SETTINGS, SpdyFrameType::PRIORITY, | 
 |                     SpdyFrameType::RST_STREAM, SpdyFrameType::PING, | 
 |                     SpdyFrameType::GOAWAY, SpdyFrameType::WINDOW_UPDATE})); | 
 |   EXPECT_FALSE(adapter_->want_write()); | 
 | } | 
 |  | 
 | TEST_F(OgHttp2AdapterTest, TestPartialSerialize) { | 
 |   EXPECT_FALSE(adapter_->want_write()); | 
 |  | 
 |   adapter_->SubmitSettings( | 
 |       {{HEADER_TABLE_SIZE, 128}, {MAX_FRAME_SIZE, 128 << 10}}); | 
 |   adapter_->SubmitGoAway(13, Http2ErrorCode::HTTP2_NO_ERROR, | 
 |                          "And don't come back!"); | 
 |   adapter_->SubmitPing(42); | 
 |   EXPECT_TRUE(adapter_->want_write()); | 
 |  | 
 |   http2_visitor_.set_send_limit(20); | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   int result = adapter_->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_TRUE(adapter_->want_write()); | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(GOAWAY, 0, _, 0x0)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(GOAWAY, 0, _, 0x0, 0)); | 
 |   result = adapter_->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_TRUE(adapter_->want_write()); | 
 |   EXPECT_CALL(http2_visitor_, OnBeforeFrameSent(PING, 0, _, 0x0)); | 
 |   EXPECT_CALL(http2_visitor_, OnFrameSent(PING, 0, _, 0x0, 0)); | 
 |   result = adapter_->Send(); | 
 |   EXPECT_EQ(0, result); | 
 |   EXPECT_FALSE(adapter_->want_write()); | 
 |   EXPECT_THAT(http2_visitor_.data(), | 
 |               EqualsFrames({SpdyFrameType::SETTINGS, SpdyFrameType::GOAWAY, | 
 |                             SpdyFrameType::PING})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterServerTest, ClientSendsContinuation) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 |  | 
 |   const std::string frames = TestFrameSequence() | 
 |                                  .ClientPreface() | 
 |                                  .Headers(1, | 
 |                                           {{":method", "GET"}, | 
 |                                            {":scheme", "https"}, | 
 |                                            {":authority", "example.com"}, | 
 |                                            {":path", "/this/is/request/one"}}, | 
 |                                           /*fin=*/true, | 
 |                                           /*add_continuation=*/true) | 
 |                                  .Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |   // Stream 1 | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 1)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":method", "GET")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":scheme", "https")); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, CONTINUATION, 4)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":authority", "example.com")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":path", "/this/is/request/one")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnEndStream(1)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_EQ(frames.size(), static_cast<size_t>(result)); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterServerTest, ClientSendsMetadataWithContinuation) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 |  | 
 |   const std::string frames = | 
 |       TestFrameSequence() | 
 |           .ClientPreface() | 
 |           .Metadata(0, "Example connection metadata in multiple frames", true) | 
 |           .Headers(1, | 
 |                    {{":method", "GET"}, | 
 |                     {":scheme", "https"}, | 
 |                     {":authority", "example.com"}, | 
 |                     {":path", "/this/is/request/one"}}, | 
 |                    /*fin=*/false, | 
 |                    /*add_continuation=*/true) | 
 |           .Metadata(1, | 
 |                     "Some stream metadata that's also sent in multiple frames", | 
 |                     true) | 
 |           .Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |   // Metadata on stream 0 | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, _, kMetadataFrameType, 0)); | 
 |   EXPECT_CALL(visitor, OnBeginMetadataForStream(0, _)); | 
 |   EXPECT_CALL(visitor, OnMetadataForStream(0, _)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, _, kMetadataFrameType, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginMetadataForStream(0, _)); | 
 |   EXPECT_CALL(visitor, OnMetadataForStream(0, _)); | 
 |   EXPECT_CALL(visitor, OnMetadataEndForStream(0)); | 
 |  | 
 |   // Stream 1 | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 0)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":method", "GET")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":scheme", "https")); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, CONTINUATION, 4)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":authority", "example.com")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":path", "/this/is/request/one")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |   // Metadata on stream 1 | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, kMetadataFrameType, 0)); | 
 |   EXPECT_CALL(visitor, OnBeginMetadataForStream(1, _)); | 
 |   EXPECT_CALL(visitor, OnMetadataForStream(1, _)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, kMetadataFrameType, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginMetadataForStream(1, _)); | 
 |   EXPECT_CALL(visitor, OnMetadataForStream(1, _)); | 
 |   EXPECT_CALL(visitor, OnMetadataEndForStream(1)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_EQ(frames.size(), static_cast<size_t>(result)); | 
 |   EXPECT_EQ(TestFrameSequence::MetadataBlockForPayload( | 
 |                 "Example connection metadata in multiple frames"), | 
 |             absl::StrJoin(visitor.GetMetadata(0), "")); | 
 |   EXPECT_EQ(TestFrameSequence::MetadataBlockForPayload( | 
 |                 "Some stream metadata that's also sent in multiple frames"), | 
 |             absl::StrJoin(visitor.GetMetadata(1), "")); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterServerTest, ServerSubmitsResponseWithDataSourceError) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 |  | 
 |   const std::string frames = TestFrameSequence() | 
 |                                  .ClientPreface() | 
 |                                  .Headers(1, | 
 |                                           {{":method", "GET"}, | 
 |                                            {":scheme", "https"}, | 
 |                                            {":authority", "example.com"}, | 
 |                                            {":path", "/this/is/request/one"}}, | 
 |                                           /*fin=*/true) | 
 |                                  .Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |   // Stream 1 | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 5)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":method", "GET")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":scheme", "https")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":authority", "example.com")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":path", "/this/is/request/one")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnEndStream(1)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_EQ(frames.size(), static_cast<size_t>(result)); | 
 |  | 
 |   auto body1 = absl::make_unique<TestDataFrameSource>(visitor, false); | 
 |   body1->SimulateError(); | 
 |   int submit_result = adapter->SubmitResponse( | 
 |       1, ToHeaders({{":status", "200"}, {"x-comment", "Sure, sounds good."}}), | 
 |       std::move(body1)); | 
 |   EXPECT_EQ(submit_result, 0); | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, 1, _, 0x4)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, 1, _, 0x4, 0)); | 
 |   // TODO(birenroy): Send RST_STREAM INTERNAL_ERROR to the client as well. | 
 |   EXPECT_CALL(visitor, OnCloseStream(1, Http2ErrorCode::INTERNAL_ERROR)); | 
 |  | 
 |   int send_result = adapter->Send(); | 
 |   EXPECT_EQ(0, send_result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::HEADERS})); | 
 |   visitor.Clear(); | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 |  | 
 |   // Since the stream has been closed, it is not possible to submit trailers for | 
 |   // the stream. | 
 |   int trailer_result = | 
 |       adapter->SubmitTrailer(1, ToHeaders({{":final-status", "a-ok"}})); | 
 |   ASSERT_LT(trailer_result, 0); | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterServerTest, CompleteRequestWithServerResponse) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 |  | 
 |   const std::string frames = | 
 |       TestFrameSequence() | 
 |           .ClientPreface() | 
 |           .Headers(1, | 
 |                    {{":method", "GET"}, | 
 |                     {":scheme", "https"}, | 
 |                     {":authority", "example.com"}, | 
 |                     {":path", "/this/is/request/one"}}, | 
 |                    /*fin=*/false) | 
 |           .Data(1, "This is the response body.", /*fin=*/true) | 
 |           .Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |   // Stream 1 | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, _, _)).Times(4); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, DATA, 1)); | 
 |   EXPECT_CALL(visitor, OnBeginDataForStream(1, _)); | 
 |   EXPECT_CALL(visitor, OnDataForStream(1, _)); | 
 |   EXPECT_CALL(visitor, OnEndStream(1)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_EQ(frames.size(), static_cast<size_t>(result)); | 
 |  | 
 |   int submit_result = | 
 |       adapter->SubmitResponse(1, ToHeaders({{":status", "200"}}), nullptr); | 
 |   EXPECT_EQ(submit_result, 0); | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, 1, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, 1, _, 0x5, 0)); | 
 |   EXPECT_CALL(visitor, OnCloseStream(1, Http2ErrorCode::HTTP2_NO_ERROR)); | 
 |  | 
 |   int send_result = adapter->Send(); | 
 |   EXPECT_EQ(0, send_result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::HEADERS})); | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterServerTest, IncompleteRequestWithServerResponse) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 |  | 
 |   const std::string frames = TestFrameSequence() | 
 |                                  .ClientPreface() | 
 |                                  .Headers(1, | 
 |                                           {{":method", "GET"}, | 
 |                                            {":scheme", "https"}, | 
 |                                            {":authority", "example.com"}, | 
 |                                            {":path", "/this/is/request/one"}}, | 
 |                                           /*fin=*/false) | 
 |                                  .Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |   // Stream 1 | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, _, _)).Times(4); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_EQ(frames.size(), static_cast<size_t>(result)); | 
 |  | 
 |   int submit_result = | 
 |       adapter->SubmitResponse(1, ToHeaders({{":status", "200"}}), nullptr); | 
 |   EXPECT_EQ(submit_result, 0); | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, 1, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, 1, _, 0x5, 0)); | 
 |   // RST_STREAM NO_ERROR option is disabled. | 
 |  | 
 |   int send_result = adapter->Send(); | 
 |   EXPECT_EQ(0, send_result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::HEADERS})); | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterServerTest, | 
 |      IncompleteRequestWithServerResponseRstStreamEnabled) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer, | 
 |                                   .rst_stream_no_error_when_incomplete = true}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 |  | 
 |   const std::string frames = TestFrameSequence() | 
 |                                  .ClientPreface() | 
 |                                  .Headers(1, | 
 |                                           {{":method", "GET"}, | 
 |                                            {":scheme", "https"}, | 
 |                                            {":authority", "example.com"}, | 
 |                                            {":path", "/this/is/request/one"}}, | 
 |                                           /*fin=*/false) | 
 |                                  .Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |   // Stream 1 | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, _, _)).Times(4); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_EQ(frames.size(), static_cast<size_t>(result)); | 
 |  | 
 |   int submit_result = | 
 |       adapter->SubmitResponse(1, ToHeaders({{":status", "200"}}), nullptr); | 
 |   EXPECT_EQ(submit_result, 0); | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, 1, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, 1, _, 0x5, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(RST_STREAM, 1, 4, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(RST_STREAM, 1, 4, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnCloseStream(1, Http2ErrorCode::HTTP2_NO_ERROR)); | 
 |  | 
 |   int send_result = adapter->Send(); | 
 |   EXPECT_EQ(0, send_result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::HEADERS, | 
 |                                             spdy::SpdyFrameType::RST_STREAM})); | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterServerTest, ServerSendsInvalidTrailers) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 |  | 
 |   const std::string frames = TestFrameSequence() | 
 |                                  .ClientPreface() | 
 |                                  .Headers(1, | 
 |                                           {{":method", "GET"}, | 
 |                                            {":scheme", "https"}, | 
 |                                            {":authority", "example.com"}, | 
 |                                            {":path", "/this/is/request/one"}}, | 
 |                                           /*fin=*/true) | 
 |                                  .Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |   // Stream 1 | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 5)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":method", "GET")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":scheme", "https")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":authority", "example.com")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":path", "/this/is/request/one")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnEndStream(1)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_EQ(frames.size(), static_cast<size_t>(result)); | 
 |  | 
 |   const absl::string_view kBody = "This is an example response body."; | 
 |  | 
 |   // The body source must indicate that the end of the body is not the end of | 
 |   // the stream. | 
 |   auto body1 = absl::make_unique<TestDataFrameSource>(visitor, false); | 
 |   body1->AppendPayload(kBody); | 
 |   body1->EndData(); | 
 |   int submit_result = adapter->SubmitResponse( | 
 |       1, ToHeaders({{":status", "200"}, {"x-comment", "Sure, sounds good."}}), | 
 |       std::move(body1)); | 
 |   EXPECT_EQ(submit_result, 0); | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, 1, _, 0x4)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, 1, _, 0x4, 0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(DATA, 1, _, 0x0, 0)); | 
 |  | 
 |   int send_result = adapter->Send(); | 
 |   EXPECT_EQ(0, send_result); | 
 |   EXPECT_THAT(visitor.data(), | 
 |               EqualsFrames( | 
 |                   {spdy::SpdyFrameType::SETTINGS, spdy::SpdyFrameType::SETTINGS, | 
 |                    spdy::SpdyFrameType::HEADERS, spdy::SpdyFrameType::DATA})); | 
 |   EXPECT_THAT(visitor.data(), testing::HasSubstr(kBody)); | 
 |   visitor.Clear(); | 
 |   EXPECT_FALSE(adapter->want_write()); | 
 |  | 
 |   // The body source has been exhausted by the call to Send() above. | 
 |   int trailer_result = | 
 |       adapter->SubmitTrailer(1, ToHeaders({{":final-status", "a-ok"}})); | 
 |   ASSERT_EQ(trailer_result, 0); | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, 1, _, 0x5)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(HEADERS, 1, _, 0x5, 0)); | 
 |   EXPECT_CALL(visitor, OnCloseStream(1, Http2ErrorCode::HTTP2_NO_ERROR)); | 
 |  | 
 |   send_result = adapter->Send(); | 
 |   EXPECT_EQ(0, send_result); | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::HEADERS})); | 
 | } | 
 |  | 
 | // Tests the case where the response body is in the progress of being sent while | 
 | // trailers are queued. | 
 | TEST(OgHttp2AdapterServerTest, ServerSubmitsTrailersWhileDataDeferred) { | 
 |   DataSavingVisitor visitor; | 
 |   for (const bool queue_trailers : {true, false}) { | 
 |     OgHttp2Adapter::Options options{ | 
 |         .perspective = Perspective::kServer, | 
 |         .trailers_require_end_data = queue_trailers}; | 
 |     auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |     const std::string frames = TestFrameSequence() | 
 |                                    .ClientPreface() | 
 |                                    .Headers(1, | 
 |                                             {{":method", "POST"}, | 
 |                                              {":scheme", "https"}, | 
 |                                              {":authority", "example.com"}, | 
 |                                              {":path", "/this/is/request/one"}}, | 
 |                                             /*fin=*/false) | 
 |                                    .WindowUpdate(1, 2000) | 
 |                                    .Data(1, "This is the request body.") | 
 |                                    .WindowUpdate(0, 2000) | 
 |                                    .Serialize(); | 
 |     testing::InSequence s; | 
 |  | 
 |     // Client preface (empty SETTINGS) | 
 |     EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |     EXPECT_CALL(visitor, OnSettingsStart()); | 
 |     EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |     EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |     EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |     EXPECT_CALL(visitor, OnHeaderForStream(1, _, _)).Times(4); | 
 |     EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |     EXPECT_CALL(visitor, OnFrameHeader(1, 4, WINDOW_UPDATE, 0)); | 
 |     EXPECT_CALL(visitor, OnWindowUpdate(1, 2000)); | 
 |     EXPECT_CALL(visitor, OnFrameHeader(1, _, DATA, 0)); | 
 |     EXPECT_CALL(visitor, OnBeginDataForStream(1, _)); | 
 |     EXPECT_CALL(visitor, OnDataForStream(1, "This is the request body.")); | 
 |     EXPECT_CALL(visitor, OnFrameHeader(0, 4, WINDOW_UPDATE, 0)); | 
 |     EXPECT_CALL(visitor, OnWindowUpdate(0, 2000)); | 
 |  | 
 |     const int64_t result = adapter->ProcessBytes(frames); | 
 |     EXPECT_EQ(frames.size(), static_cast<size_t>(result)); | 
 |  | 
 |     EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |     EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |     EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |     EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |     EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |  | 
 |     int send_result = adapter->Send(); | 
 |     EXPECT_EQ(0, send_result); | 
 |     visitor.Clear(); | 
 |  | 
 |     const absl::string_view kBody = "This is an example response body."; | 
 |  | 
 |     // The body source must indicate that the end of the body is not the end of | 
 |     // the stream. | 
 |     auto body1 = absl::make_unique<TestDataFrameSource>(visitor, false); | 
 |     body1->AppendPayload(kBody); | 
 |     auto* body1_ptr = body1.get(); | 
 |     int submit_result = adapter->SubmitResponse( | 
 |         1, ToHeaders({{":status", "200"}, {"x-comment", "Sure, sounds good."}}), | 
 |         std::move(body1)); | 
 |     EXPECT_EQ(submit_result, 0); | 
 |     EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |     EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, 1, _, 0x4)); | 
 |     EXPECT_CALL(visitor, OnFrameSent(HEADERS, 1, _, 0x4, 0)); | 
 |     EXPECT_CALL(visitor, OnFrameSent(DATA, 1, _, 0x0, 0)); | 
 |  | 
 |     send_result = adapter->Send(); | 
 |     EXPECT_EQ(0, send_result); | 
 |     visitor.Clear(); | 
 |     EXPECT_FALSE(adapter->want_write()); | 
 |  | 
 |     int trailer_result = | 
 |         adapter->SubmitTrailer(1, ToHeaders({{"final-status", "a-ok"}})); | 
 |     ASSERT_EQ(trailer_result, 0); | 
 |     if (queue_trailers) { | 
 |       // Even though there are new trailers to write, the data source has not | 
 |       // finished writing data and is blocked. | 
 |       EXPECT_FALSE(adapter->want_write()); | 
 |  | 
 |       body1_ptr->EndData(); | 
 |       adapter->ResumeStream(1); | 
 |       EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |       EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, 1, _, 0x5)); | 
 |       EXPECT_CALL(visitor, OnFrameSent(HEADERS, 1, _, 0x5, 0)); | 
 |  | 
 |       send_result = adapter->Send(); | 
 |       EXPECT_EQ(0, send_result); | 
 |     } else { | 
 |       // Even though the data source has not finished sending data, the library | 
 |       // will write the trailers anyway. | 
 |       EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |       EXPECT_CALL(visitor, OnBeforeFrameSent(HEADERS, 1, _, 0x5)); | 
 |       EXPECT_CALL(visitor, OnFrameSent(HEADERS, 1, _, 0x5, 0)); | 
 |  | 
 |       send_result = adapter->Send(); | 
 |       EXPECT_EQ(0, send_result); | 
 |       EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::HEADERS})); | 
 |     } | 
 |   } | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterServerTest, ServerErrorWhileHandlingHeaders) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   const std::string frames = TestFrameSequence() | 
 |                                  .ClientPreface() | 
 |                                  .Headers(1, | 
 |                                           {{":method", "POST"}, | 
 |                                            {":scheme", "https"}, | 
 |                                            {":authority", "example.com"}, | 
 |                                            {":path", "/this/is/request/one"}, | 
 |                                            {"accept", "some bogus value!"}}, | 
 |                                           /*fin=*/false) | 
 |                                  .WindowUpdate(1, 2000) | 
 |                                  .Data(1, "This is the request body.") | 
 |                                  .WindowUpdate(0, 2000) | 
 |                                  .Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":method", "POST")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":scheme", "https")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":authority", "example.com")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":path", "/this/is/request/one")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, "accept", "some bogus value!")) | 
 |       .WillOnce(testing::Return(Http2VisitorInterface::HEADER_RST_STREAM)); | 
 |   EXPECT_CALL( | 
 |       visitor, | 
 |       OnInvalidFrame(1, Http2VisitorInterface::InvalidFrameError::kHttpHeader)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, 4, WINDOW_UPDATE, 0)); | 
 |   EXPECT_CALL(visitor, OnWindowUpdate(1, 2000)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, DATA, 0)); | 
 |   EXPECT_CALL(visitor, OnBeginDataForStream(1, _)); | 
 |   EXPECT_CALL(visitor, OnDataForStream(1, "This is the request body.")); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 4, WINDOW_UPDATE, 0)); | 
 |   EXPECT_CALL(visitor, OnWindowUpdate(0, 2000)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_EQ(frames.size(), static_cast<size_t>(result)); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(RST_STREAM, 1, 4, 0x0)); | 
 |   EXPECT_CALL(visitor, | 
 |               OnFrameSent(RST_STREAM, 1, 4, 0x0, | 
 |                           static_cast<int>(Http2ErrorCode::INTERNAL_ERROR))); | 
 |   EXPECT_CALL(visitor, OnCloseStream(1, Http2ErrorCode::HTTP2_NO_ERROR)); | 
 |  | 
 |   int send_result = adapter->Send(); | 
 |   // Some bytes should have been serialized. | 
 |   EXPECT_EQ(0, send_result); | 
 |   // SETTINGS ack | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::RST_STREAM})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterServerTest, ServerConnectionErrorWhileHandlingHeaders) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   const std::string frames = TestFrameSequence() | 
 |                                  .ClientPreface() | 
 |                                  .Headers(1, | 
 |                                           {{":method", "POST"}, | 
 |                                            {":scheme", "https"}, | 
 |                                            {":authority", "example.com"}, | 
 |                                            {":path", "/this/is/request/one"}, | 
 |                                            {"Accept", "uppercase, oh boy!"}}, | 
 |                                           /*fin=*/false) | 
 |                                  .WindowUpdate(1, 2000) | 
 |                                  .Data(1, "This is the request body.") | 
 |                                  .WindowUpdate(0, 2000) | 
 |                                  .Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":method", "POST")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":scheme", "https")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":authority", "example.com")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":path", "/this/is/request/one")); | 
 |   EXPECT_CALL( | 
 |       visitor, | 
 |       OnInvalidFrame(1, Http2VisitorInterface::InvalidFrameError::kHttpHeader)) | 
 |       .WillOnce(testing::Return(false)); | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kHeaderError)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_LT(result, 0); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(RST_STREAM, 1, 4, 0x0)); | 
 |   EXPECT_CALL(visitor, | 
 |               OnFrameSent(RST_STREAM, 1, 4, 0x0, | 
 |                           static_cast<int>(Http2ErrorCode::INTERNAL_ERROR))); | 
 |   EXPECT_CALL(visitor, OnCloseStream(1, Http2ErrorCode::HTTP2_NO_ERROR)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(GOAWAY, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, | 
 |               OnFrameSent(GOAWAY, 0, _, 0x0, | 
 |                           static_cast<int>(Http2ErrorCode::INTERNAL_ERROR))); | 
 |  | 
 |   int send_result = adapter->Send(); | 
 |   // Some bytes should have been serialized. | 
 |   EXPECT_EQ(0, send_result); | 
 |   // SETTINGS ack | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::RST_STREAM, | 
 |                                             spdy::SpdyFrameType::GOAWAY})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterServerTest, ServerErrorAfterHandlingHeaders) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   const std::string frames = TestFrameSequence() | 
 |                                  .ClientPreface() | 
 |                                  .Headers(1, | 
 |                                           {{":method", "POST"}, | 
 |                                            {":scheme", "https"}, | 
 |                                            {":authority", "example.com"}, | 
 |                                            {":path", "/this/is/request/one"}}, | 
 |                                           /*fin=*/false) | 
 |                                  .WindowUpdate(1, 2000) | 
 |                                  .Data(1, "This is the request body.") | 
 |                                  .WindowUpdate(0, 2000) | 
 |                                  .Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":method", "POST")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":scheme", "https")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":authority", "example.com")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":path", "/this/is/request/one")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)) | 
 |       .WillOnce(testing::Return(false)); | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kParseError)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_LT(result, 0); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(GOAWAY, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, | 
 |               OnFrameSent(GOAWAY, 0, _, 0x0, | 
 |                           static_cast<int>(Http2ErrorCode::INTERNAL_ERROR))); | 
 |  | 
 |   int send_result = adapter->Send(); | 
 |   // Some bytes should have been serialized. | 
 |   EXPECT_EQ(0, send_result); | 
 |   // SETTINGS, SETTINGS ack, and GOAWAY | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::GOAWAY})); | 
 | } | 
 |  | 
 | // Exercises the case when a visitor chooses to reject a frame based solely on | 
 | // the frame header, which is a fatal error for the connection. | 
 | TEST(OgHttp2AdapterServerTest, ServerRejectsFrameHeader) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   const std::string frames = TestFrameSequence() | 
 |                                  .ClientPreface() | 
 |                                  .Ping(64) | 
 |                                  .Headers(1, | 
 |                                           {{":method", "POST"}, | 
 |                                            {":scheme", "https"}, | 
 |                                            {":authority", "example.com"}, | 
 |                                            {":path", "/this/is/request/one"}}, | 
 |                                           /*fin=*/false) | 
 |                                  .WindowUpdate(1, 2000) | 
 |                                  .Data(1, "This is the request body.") | 
 |                                  .WindowUpdate(0, 2000) | 
 |                                  .Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 8, PING, 0)) | 
 |       .WillOnce(testing::Return(false)); | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kParseError)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_LT(result, 0); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(GOAWAY, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, | 
 |               OnFrameSent(GOAWAY, 0, _, 0x0, | 
 |                           static_cast<int>(Http2ErrorCode::INTERNAL_ERROR))); | 
 |  | 
 |   int send_result = adapter->Send(); | 
 |   // Some bytes should have been serialized. | 
 |   EXPECT_EQ(0, send_result); | 
 |   // SETTINGS, SETTINGS ack, and GOAWAY | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::GOAWAY})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterServerTest, ServerRejectsBeginningOfData) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   const std::string frames = TestFrameSequence() | 
 |                                  .ClientPreface() | 
 |                                  .Headers(1, | 
 |                                           {{":method", "POST"}, | 
 |                                            {":scheme", "https"}, | 
 |                                            {":authority", "example.com"}, | 
 |                                            {":path", "/this/is/request/one"}}, | 
 |                                           /*fin=*/false) | 
 |                                  .Data(1, "This is the request body.") | 
 |                                  .Headers(3, | 
 |                                           {{":method", "GET"}, | 
 |                                            {":scheme", "http"}, | 
 |                                            {":authority", "example.com"}, | 
 |                                            {":path", "/this/is/request/two"}}, | 
 |                                           /*fin=*/true) | 
 |                                  .RstStream(3, Http2ErrorCode::CANCEL) | 
 |                                  .Ping(47) | 
 |                                  .Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":method", "POST")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":scheme", "https")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":authority", "example.com")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":path", "/this/is/request/one")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, 25, DATA, 0)); | 
 |   EXPECT_CALL(visitor, OnBeginDataForStream(1, 25)) | 
 |       .WillOnce(testing::Return(false)); | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kParseError)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_LT(result, 0); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(GOAWAY, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, | 
 |               OnFrameSent(GOAWAY, 0, _, 0x0, | 
 |                           static_cast<int>(Http2ErrorCode::INTERNAL_ERROR))); | 
 |  | 
 |   int send_result = adapter->Send(); | 
 |   // Some bytes should have been serialized. | 
 |   EXPECT_EQ(0, send_result); | 
 |   // SETTINGS, SETTINGS ack, and GOAWAY. | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::GOAWAY})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterServerTest, ServerRejectsStreamData) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   const std::string frames = TestFrameSequence() | 
 |                                  .ClientPreface() | 
 |                                  .Headers(1, | 
 |                                           {{":method", "POST"}, | 
 |                                            {":scheme", "https"}, | 
 |                                            {":authority", "example.com"}, | 
 |                                            {":path", "/this/is/request/one"}}, | 
 |                                           /*fin=*/false) | 
 |                                  .Data(1, "This is the request body.") | 
 |                                  .Headers(3, | 
 |                                           {{":method", "GET"}, | 
 |                                            {":scheme", "http"}, | 
 |                                            {":authority", "example.com"}, | 
 |                                            {":path", "/this/is/request/two"}}, | 
 |                                           /*fin=*/true) | 
 |                                  .RstStream(3, Http2ErrorCode::CANCEL) | 
 |                                  .Ping(47) | 
 |                                  .Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":method", "POST")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":scheme", "https")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":authority", "example.com")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(1, ":path", "/this/is/request/one")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(1)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, 25, DATA, 0)); | 
 |   EXPECT_CALL(visitor, OnBeginDataForStream(1, 25)); | 
 |   EXPECT_CALL(visitor, OnDataForStream(1, _)).WillOnce(testing::Return(false)); | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kParseError)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_LT(result, 0); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(GOAWAY, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, | 
 |               OnFrameSent(GOAWAY, 0, _, 0x0, | 
 |                           static_cast<int>(Http2ErrorCode::INTERNAL_ERROR))); | 
 |  | 
 |   int send_result = adapter->Send(); | 
 |   // Some bytes should have been serialized. | 
 |   EXPECT_EQ(0, send_result); | 
 |   // SETTINGS, SETTINGS ack, and GOAWAY. | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::GOAWAY})); | 
 | } | 
 |  | 
 | // Exercises a naive mutually recursive test client and server. This test fails | 
 | // without recursion guards in OgHttp2Session. | 
 | TEST(OgHttp2AdapterInteractionTest, ClientServerInteractionTest) { | 
 |   MockHttp2Visitor client_visitor; | 
 |   auto client_adapter = | 
 |       OgHttp2Adapter::Create(client_visitor, {Perspective::kClient}); | 
 |   MockHttp2Visitor server_visitor; | 
 |   auto server_adapter = | 
 |       OgHttp2Adapter::Create(server_visitor, {Perspective::kServer}); | 
 |  | 
 |   // Feeds bytes sent from the client into the server's ProcessBytes. | 
 |   EXPECT_CALL(client_visitor, OnReadyToSend(_)) | 
 |       .WillRepeatedly( | 
 |           testing::Invoke(server_adapter.get(), &OgHttp2Adapter::ProcessBytes)); | 
 |   // Feeds bytes sent from the server into the client's ProcessBytes. | 
 |   EXPECT_CALL(server_visitor, OnReadyToSend(_)) | 
 |       .WillRepeatedly( | 
 |           testing::Invoke(client_adapter.get(), &OgHttp2Adapter::ProcessBytes)); | 
 |   // Sets up the server to respond automatically to a request from a client. | 
 |   EXPECT_CALL(server_visitor, OnEndHeadersForStream(_)) | 
 |       .WillRepeatedly([&server_adapter](Http2StreamId stream_id) { | 
 |         server_adapter->SubmitResponse( | 
 |             stream_id, ToHeaders({{":status", "200"}}), nullptr); | 
 |         server_adapter->Send(); | 
 |         return true; | 
 |       }); | 
 |   // Sets up the client to create a new stream automatically when receiving a | 
 |   // response. | 
 |   EXPECT_CALL(client_visitor, OnEndHeadersForStream(_)) | 
 |       .WillRepeatedly([&client_adapter, | 
 |                        &client_visitor](Http2StreamId stream_id) { | 
 |         if (stream_id < 10) { | 
 |           const Http2StreamId new_stream_id = stream_id + 2; | 
 |           auto body = | 
 |               absl::make_unique<TestDataFrameSource>(client_visitor, true); | 
 |           body->AppendPayload("This is an example request body."); | 
 |           body->EndData(); | 
 |           const int created_stream_id = client_adapter->SubmitRequest( | 
 |               ToHeaders({{":method", "GET"}, | 
 |                          {":scheme", "http"}, | 
 |                          {":authority", "example.com"}, | 
 |                          {":path", | 
 |                           absl::StrCat("/this/is/request/", new_stream_id)}}), | 
 |               std::move(body), nullptr); | 
 |           EXPECT_EQ(new_stream_id, created_stream_id); | 
 |           client_adapter->Send(); | 
 |         } | 
 |         return true; | 
 |       }); | 
 |  | 
 |   // Submit a request to ensure the first stream is created. | 
 |   int stream_id = client_adapter->SubmitRequest( | 
 |       ToHeaders({{":method", "POST"}, | 
 |                  {":scheme", "http"}, | 
 |                  {":authority", "example.com"}, | 
 |                  {":path", "/this/is/request/one"}}), | 
 |       nullptr, nullptr); | 
 |   EXPECT_EQ(stream_id, 1); | 
 |  | 
 |   client_adapter->Send(); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterServerTest, ServerForbidsNewStreamBelowWatermark) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   EXPECT_EQ(0, adapter->GetHighestReceivedStreamId()); | 
 |  | 
 |   const std::string frames = TestFrameSequence() | 
 |                                  .ClientPreface() | 
 |                                  .Headers(3, | 
 |                                           {{":method", "POST"}, | 
 |                                            {":scheme", "https"}, | 
 |                                            {":authority", "example.com"}, | 
 |                                            {":path", "/this/is/request/one"}}, | 
 |                                           /*fin=*/false) | 
 |                                  .Data(3, "This is the request body.") | 
 |                                  .Headers(1, | 
 |                                           {{":method", "GET"}, | 
 |                                            {":scheme", "http"}, | 
 |                                            {":authority", "example.com"}, | 
 |                                            {":path", "/this/is/request/two"}}, | 
 |                                           /*fin=*/true) | 
 |                                  .Serialize(); | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(3, _, HEADERS, 4)); | 
 |   EXPECT_CALL(visitor, OnBeginHeadersForStream(3)); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(3, ":method", "POST")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(3, ":scheme", "https")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(3, ":authority", "example.com")); | 
 |   EXPECT_CALL(visitor, OnHeaderForStream(3, ":path", "/this/is/request/one")); | 
 |   EXPECT_CALL(visitor, OnEndHeadersForStream(3)); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(3, 25, DATA, 0)); | 
 |   EXPECT_CALL(visitor, OnBeginDataForStream(3, 25)); | 
 |   EXPECT_CALL(visitor, OnDataForStream(3, "This is the request body.")); | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, HEADERS, 5)); | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kInvalidNewStreamId)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_LT(result, 0); | 
 |  | 
 |   EXPECT_EQ(3, adapter->GetHighestReceivedStreamId()); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, _, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(GOAWAY, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, | 
 |               OnFrameSent(GOAWAY, 0, _, 0x0, | 
 |                           static_cast<int>(Http2ErrorCode::PROTOCOL_ERROR))); | 
 |  | 
 |   int send_result = adapter->Send(); | 
 |   // Some bytes should have been serialized. | 
 |   EXPECT_EQ(0, send_result); | 
 |   // SETTINGS, SETTINGS ack, and GOAWAY. | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::GOAWAY})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterServerTest, ServerForbidsWindowUpdateOnIdleStream) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   EXPECT_EQ(0, adapter->GetHighestReceivedStreamId()); | 
 |  | 
 |   const std::string frames = | 
 |       TestFrameSequence().ClientPreface().WindowUpdate(1, 42).Serialize(); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, 4, WINDOW_UPDATE, 0)); | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kWrongFrameSequence)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_LT(result, 0); | 
 |  | 
 |   EXPECT_EQ(1, adapter->GetHighestReceivedStreamId()); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(GOAWAY, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, | 
 |               OnFrameSent(GOAWAY, 0, _, 0x0, | 
 |                           static_cast<int>(Http2ErrorCode::PROTOCOL_ERROR))); | 
 |  | 
 |   int send_result = adapter->Send(); | 
 |   // Some bytes should have been serialized. | 
 |   EXPECT_EQ(0, send_result); | 
 |   // SETTINGS, SETTINGS ack, and GOAWAY. | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::GOAWAY})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterServerTest, ServerForbidsDataOnIdleStream) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   EXPECT_EQ(0, adapter->GetHighestReceivedStreamId()); | 
 |  | 
 |   const std::string frames = TestFrameSequence() | 
 |                                  .ClientPreface() | 
 |                                  .Data(1, "Sorry, out of order") | 
 |                                  .Serialize(); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, DATA, 0)); | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kWrongFrameSequence)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_LT(result, 0); | 
 |  | 
 |   EXPECT_EQ(1, adapter->GetHighestReceivedStreamId()); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(GOAWAY, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, | 
 |               OnFrameSent(GOAWAY, 0, _, 0x0, | 
 |                           static_cast<int>(Http2ErrorCode::PROTOCOL_ERROR))); | 
 |  | 
 |   int send_result = adapter->Send(); | 
 |   // Some bytes should have been serialized. | 
 |   EXPECT_EQ(0, send_result); | 
 |   // SETTINGS, SETTINGS ack, and GOAWAY. | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::GOAWAY})); | 
 | } | 
 |  | 
 | TEST(OgHttp2AdapterServerTest, ServerForbidsRstStreamOnIdleStream) { | 
 |   DataSavingVisitor visitor; | 
 |   OgHttp2Adapter::Options options{.perspective = Perspective::kServer}; | 
 |   auto adapter = OgHttp2Adapter::Create(visitor, options); | 
 |  | 
 |   EXPECT_EQ(0, adapter->GetHighestReceivedStreamId()); | 
 |  | 
 |   const std::string frames = | 
 |       TestFrameSequence() | 
 |           .ClientPreface() | 
 |           .RstStream(1, Http2ErrorCode::ENHANCE_YOUR_CALM) | 
 |           .Serialize(); | 
 |  | 
 |   testing::InSequence s; | 
 |  | 
 |   // Client preface (empty SETTINGS) | 
 |   EXPECT_CALL(visitor, OnFrameHeader(0, 0, SETTINGS, 0)); | 
 |   EXPECT_CALL(visitor, OnSettingsStart()); | 
 |   EXPECT_CALL(visitor, OnSettingsEnd()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnFrameHeader(1, _, RST_STREAM, 0)); | 
 |   EXPECT_CALL(visitor, OnConnectionError(ConnectionError::kWrongFrameSequence)); | 
 |  | 
 |   const int64_t result = adapter->ProcessBytes(frames); | 
 |   EXPECT_LT(result, 0); | 
 |  | 
 |   EXPECT_EQ(1, adapter->GetHighestReceivedStreamId()); | 
 |  | 
 |   EXPECT_TRUE(adapter->want_write()); | 
 |  | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x0)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x0, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(SETTINGS, 0, 0, 0x1)); | 
 |   EXPECT_CALL(visitor, OnFrameSent(SETTINGS, 0, 0, 0x1, 0)); | 
 |   EXPECT_CALL(visitor, OnBeforeFrameSent(GOAWAY, 0, _, 0x0)); | 
 |   EXPECT_CALL(visitor, | 
 |               OnFrameSent(GOAWAY, 0, _, 0x0, | 
 |                           static_cast<int>(Http2ErrorCode::PROTOCOL_ERROR))); | 
 |  | 
 |   int send_result = adapter->Send(); | 
 |   // Some bytes should have been serialized. | 
 |   EXPECT_EQ(0, send_result); | 
 |   // SETTINGS, SETTINGS ack, and GOAWAY. | 
 |   EXPECT_THAT(visitor.data(), EqualsFrames({spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::SETTINGS, | 
 |                                             spdy::SpdyFrameType::GOAWAY})); | 
 | } | 
 |  | 
 | }  // namespace | 
 | }  // namespace test | 
 | }  // namespace adapter | 
 | }  // namespace http2 |