relnote: Deprecate --quic_auto_tune_receive_window.

net/tools/quic/end_to_end_test.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 #include <sys/epoll.h>
 
 #include <list>
 #include <string>
 #include <vector>
@@ skipping 78 matching lines @@
 const char kBarResponseBody[] = "Palm hearts are pretty delicious, also.";
 const float kSessionToStreamRatio = 1.5;
 
 // Run all tests with the cross products of all versions.
 struct TestParams {
   TestParams(const QuicVersionVector& client_supported_versions,
              const QuicVersionVector& server_supported_versions,
              QuicVersion negotiated_version,
              bool client_supports_stateless_rejects,
              bool server_uses_stateless_rejects_if_peer_supported,
-             QuicTag congestion_control_tag,
-             bool auto_tune_flow_control_window)
+             QuicTag congestion_control_tag)
       : client_supported_versions(client_supported_versions),
         server_supported_versions(server_supported_versions),
         negotiated_version(negotiated_version),
         client_supports_stateless_rejects(client_supports_stateless_rejects),
         server_uses_stateless_rejects_if_peer_supported(
             server_uses_stateless_rejects_if_peer_supported),
-        congestion_control_tag(congestion_control_tag),
-        auto_tune_flow_control_window(auto_tune_flow_control_window) {}
+        congestion_control_tag(congestion_control_tag) {}
 
   friend ostream& operator<<(ostream& os, const TestParams& p) {
     os << "{ server_supported_versions: "
        << QuicVersionVectorToString(p.server_supported_versions);
     os << " client_supported_versions: "
        << QuicVersionVectorToString(p.client_supported_versions);
     os << " negotiated_version: " << QuicVersionToString(p.negotiated_version);
     os << " client_supports_stateless_rejects: "
        << p.client_supports_stateless_rejects;
     os << " server_uses_stateless_rejects_if_peer_supported: "
        << p.server_uses_stateless_rejects_if_peer_supported;
     os << " congestion_control_tag: "
-       << QuicUtils::TagToString(p.congestion_control_tag);
-    os << " auto_tune_flow_control_window: " << p.auto_tune_flow_control_window
-       << " }";
+       << QuicUtils::TagToString(p.congestion_control_tag) << " }";
     return os;
   }
 
   QuicVersionVector client_supported_versions;
   QuicVersionVector server_supported_versions;
   QuicVersion negotiated_version;
   bool client_supports_stateless_rejects;
   bool server_uses_stateless_rejects_if_peer_supported;
   QuicTag congestion_control_tag;
-  bool auto_tune_flow_control_window;
 };
 
 // Constructs various test permutations.
 vector<TestParams> GetTestParams() {
   // Divide the versions into buckets in which the intra-frame format
   // is compatible. When clients encounter QUIC version negotiation
   // they simply retransmit all packets using the new version's
   // QUIC framing. However, they are unable to change the intra-frame
   // layout (for example to change SPDY/4 headers to SPDY/3). So
   // these tests need to ensure that clients are never attempting
@@ skipping 10 matching lines @@
       // version negotiation across the version 26 boundary.
       version_buckets[1].push_back(version);
     }
   }
 
   vector<TestParams> params;
   for (bool server_uses_stateless_rejects_if_peer_supported : {true, false}) {
     for (bool client_supports_stateless_rejects : {true, false}) {
       // TODO(rtenneti): Add kTBBR after BBR code is checked in.
       for (const QuicTag congestion_control_tag : {kRENO, kQBIC}) {
-        for (bool auto_tune_flow_control_window : {true, false}) {
-          const int kMaxEnabledOptions = 5;
-          int enabled_options = 0;
-          if (congestion_control_tag != kQBIC) {
-            ++enabled_options;
-          }
-          if (auto_tune_flow_control_window) {
-            ++enabled_options;
-          }
-          if (client_supports_stateless_rejects) {
-            ++enabled_options;
-          }
-          if (server_uses_stateless_rejects_if_peer_supported) {
-            ++enabled_options;
-          }
-          CHECK_GE(kMaxEnabledOptions, enabled_options);
+        const int kMaxEnabledOptions = 4;
+        int enabled_options = 0;
+        if (congestion_control_tag != kQBIC) {
+          ++enabled_options;
+        }
+        if (client_supports_stateless_rejects) {
+          ++enabled_options;
+        }
+        if (server_uses_stateless_rejects_if_peer_supported) {
+          ++enabled_options;
+        }
+        CHECK_GE(kMaxEnabledOptions, enabled_options);
 
-          // Run tests with no options, a single option, or all the options
-          // enabled to avoid a combinatorial explosion.
-          if (enabled_options > 1 && enabled_options < kMaxEnabledOptions) {
+        // Run tests with no options, a single option, or all the options
+        // enabled to avoid a combinatorial explosion.
+        if (enabled_options > 1 && enabled_options < kMaxEnabledOptions) {
+          continue;
+        }
+
+        for (const QuicVersionVector& client_versions : version_buckets) {
+          CHECK(!client_versions.empty());
+          // Add an entry for server and client supporting all versions.
+          params.push_back(TestParams(
+              client_versions, all_supported_versions, client_versions.front(),
+              client_supports_stateless_rejects,
+              server_uses_stateless_rejects_if_peer_supported,
+              congestion_control_tag));
+
+          // Run version negotiation tests tests with no options, or all
+          // the options enabled to avoid a combinatorial explosion.
+          if (enabled_options > 0 && enabled_options < kMaxEnabledOptions) {
             continue;
           }
 
-          for (const QuicVersionVector& client_versions : version_buckets) {
-            CHECK(!client_versions.empty());
-            // Add an entry for server and client supporting all versions.
-            params.push_back(TestParams(
-                client_versions, all_supported_versions,
-                client_versions.front(), client_supports_stateless_rejects,
-                server_uses_stateless_rejects_if_peer_supported,
-                congestion_control_tag, auto_tune_flow_control_window));
-
-            // Run version negotiation tests tests with no options, or all
-            // the options enabled to avoid a combinatorial explosion.
-            if (enabled_options > 0 && enabled_options < kMaxEnabledOptions) {
-              continue;
-            }
-
-            // Test client supporting all versions and server supporting 1
-            // version. Simulate an old server and exercise version downgrade
-            // in the client. Protocol negotiation should occur. Skip the i =
-            // 0 case because it is essentially the same as the default case.
-            for (size_t i = 1; i < client_versions.size(); ++i) {
-              QuicVersionVector server_supported_versions;
-              server_supported_versions.push_back(client_versions[i]);
-              params.push_back(TestParams(
-                  client_versions, server_supported_versions,
-                  server_supported_versions.front(),
-                  client_supports_stateless_rejects,
-                  server_uses_stateless_rejects_if_peer_supported,
-                  congestion_control_tag, auto_tune_flow_control_window));
-            }
+          // Test client supporting all versions and server supporting 1
+          // version. Simulate an old server and exercise version downgrade
+          // in the client. Protocol negotiation should occur. Skip the i =
+          // 0 case because it is essentially the same as the default case.
+          for (size_t i = 1; i < client_versions.size(); ++i) {
+            QuicVersionVector server_supported_versions;
+            server_supported_versions.push_back(client_versions[i]);
+            params.push_back(
+              TestParams(client_versions, server_supported_versions,
+                         server_supported_versions.front(),
+                         client_supports_stateless_rejects,
+                         server_uses_stateless_rejects_if_peer_supported,
+                         congestion_control_tag));
           }
         }
       }
     }
   }
   return params;
 }
 
 class ServerDelegate : public PacketDroppingTestWriter::Delegate {
  public:
@@ skipping 115 matching lines @@
     server_config_.SetConnectionOptionsToSend(copt);
 
     // TODO(nimia): Consider setting the congestion control algorithm for the
     // client as well according to the test parameter.
     copt.push_back(GetParam().congestion_control_tag);
     copt.push_back(kSPSH);
 
     if (GetParam().client_supports_stateless_rejects) {
       copt.push_back(kSREJ);
     }
-    if (GetParam().auto_tune_flow_control_window) {
-      copt.push_back(kAFCW);
-      copt.push_back(kIFW5);
-    }
     client_config_.SetConnectionOptionsToSend(copt);
 
     // Start the server first, because CreateQuicClient() attempts
     // to connect to the server.
     StartServer();
 
     client_.reset(CreateQuicClient(client_writer_));
     static EpollEvent event(EPOLLOUT, false);
     client_writer_->Initialize(
         reinterpret_cast<QuicEpollConnectionHelper*>(
@@ skipping 1119 matching lines @@
 
 TEST_P(EndToEndTest, DifferentFlowControlWindows) {
   // Client and server can set different initial flow control receive windows.
   // These are sent in CHLO/SHLO. Tests that these values are exchanged properly
   // in the crypto handshake.
   const uint32_t kClientStreamIFCW = 123456;
   const uint32_t kClientSessionIFCW = 234567;
   set_client_initial_stream_flow_control_receive_window(kClientStreamIFCW);
   set_client_initial_session_flow_control_receive_window(kClientSessionIFCW);
 
-  uint32_t kServerStreamIFCW =
-      GetParam().auto_tune_flow_control_window ? 32 * 1024 : 654321;
-  uint32_t kServerSessionIFCW =
-      GetParam().auto_tune_flow_control_window ? 48 * 1024 : 765432;
+  uint32_t kServerStreamIFCW = 32 * 1024;
+  uint32_t kServerSessionIFCW = 48 * 1024;
   set_server_initial_stream_flow_control_receive_window(kServerStreamIFCW);
   set_server_initial_session_flow_control_receive_window(kServerSessionIFCW);
 
   ASSERT_TRUE(Initialize());
 
   // Values are exchanged during crypto handshake, so wait for that to finish.
   client_->client()->WaitForCryptoHandshakeConfirmed();
   server_thread_->WaitForCryptoHandshakeConfirmed();
 
   // Open a data stream to make sure the stream level flow control is updated.
@@ skipping 27 matching lines @@
   EXPECT_EQ(kClientSessionIFCW,
             session->config()->ReceivedInitialSessionFlowControlWindowBytes());
   EXPECT_EQ(kClientSessionIFCW, QuicFlowControllerPeer::SendWindowOffset(
                                     session->flow_controller()));
   server_thread_->Resume();
 }
 
 TEST_P(EndToEndTest, HeadersAndCryptoStreamsNoConnectionFlowControl) {
   // The special headers and crypto streams should be subject to per-stream flow
   // control limits, but should not be subject to connection level flow control.
-  const uint32_t kStreamIFCW =
-      GetParam().auto_tune_flow_control_window ? 32 * 1024 : 123456;
-  const uint32_t kSessionIFCW =
-      GetParam().auto_tune_flow_control_window ? 48 * 1024 : 234567;
+  const uint32_t kStreamIFCW = 32 * 1024;
+  const uint32_t kSessionIFCW = 48 * 1024;
   set_client_initial_stream_flow_control_receive_window(kStreamIFCW);
   set_client_initial_session_flow_control_receive_window(kSessionIFCW);
   set_server_initial_stream_flow_control_receive_window(kStreamIFCW);
   set_server_initial_session_flow_control_receive_window(kSessionIFCW);
 
   ASSERT_TRUE(Initialize());
 
   // Wait for crypto handshake to finish. This should have contributed to the
   // crypto stream flow control window, but not affected the session flow
   // control window.
@@ skipping 1057 matching lines @@
   client_->client()->WaitForCryptoHandshakeConfirmed();
   SetPacketLossPercentage(1);
   client_->SendRequest("/huge_response");
   client_->WaitForResponse();
   VerifyCleanConnection(false);
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net