Slow start pipelining.

net/http/http_pipelined_host_unittest.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "net/http/http_pipelined_host.h"
-
-#include "net/base/ssl_config_service.h"
-#include "net/http/http_pipelined_connection.h"
-#include "net/proxy/proxy_info.h"
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-using testing::_;
-using testing::NiceMock;
-using testing::Ref;
-using testing::Return;
-using testing::ReturnNull;
-
-static const int kMaxCapacity = 3;
-
-namespace net {
-
-static ClientSocketHandle* kDummyConnection =
-    reinterpret_cast<ClientSocketHandle*>(84);
-static HttpPipelinedStream* kDummyStream =
-    reinterpret_cast<HttpPipelinedStream*>(42);
-
-class MockHostDelegate : public HttpPipelinedHost::Delegate {
- public:
-  MOCK_METHOD1(OnHostIdle, void(HttpPipelinedHost* host));
-  MOCK_METHOD1(OnHostHasAdditionalCapacity, void(HttpPipelinedHost* host));
-};
-
-class MockPipelineFactory : public HttpPipelinedConnection::Factory {
- public:
-  MOCK_METHOD6(CreateNewPipeline, HttpPipelinedConnection*(
-      ClientSocketHandle* connection,
-      HttpPipelinedConnection::Delegate* delegate,
-      const SSLConfig& used_ssl_config,
-      const ProxyInfo& used_proxy_info,
-      const BoundNetLog& net_log,
-      bool was_npn_negotiated));
-};
-
-class MockPipeline : public HttpPipelinedConnection {
- public:
-  MockPipeline(int depth, bool usable, bool active)
-      : depth_(depth),
-        usable_(usable),
-        active_(active) {
-  }
-
-  void SetState(int depth, bool usable, bool active) {
-    depth_ = depth;
-    usable_ = usable;
-    active_ = active;
-  }
-
-  virtual int depth() const OVERRIDE { return depth_; }
-  virtual bool usable() const OVERRIDE { return usable_; }
-  virtual bool active() const OVERRIDE { return active_; }
-
-  MOCK_METHOD0(CreateNewStream, HttpPipelinedStream*());
-  MOCK_METHOD1(OnStreamDeleted, void(int pipeline_id));
-  MOCK_CONST_METHOD0(used_ssl_config, const SSLConfig&());
-  MOCK_CONST_METHOD0(used_proxy_info, const ProxyInfo&());
-  MOCK_CONST_METHOD0(source, const NetLog::Source&());
-  MOCK_CONST_METHOD0(was_npn_negotiated, bool());
-
- private:
-  int depth_;
-  bool usable_;
-  bool active_;
-};
-
-class HttpPipelinedHostTest : public testing::Test {
- public:
-  HttpPipelinedHostTest()
-      : origin_("host", 123),
-        factory_(new MockPipelineFactory),  // Owned by host_.
-        host_(&delegate_, origin_, factory_) {
-  }
-
-  MockPipeline* AddTestPipeline(int depth, bool usable, bool active) {
-    MockPipeline* pipeline = new MockPipeline(depth, usable, active);
-    EXPECT_CALL(*factory_, CreateNewPipeline(kDummyConnection, &host_,
-                                             Ref(ssl_config_), Ref(proxy_info_),
-                                             Ref(net_log_), true))
-        .Times(1)
-        .WillOnce(Return(pipeline));
-    EXPECT_CALL(*pipeline, CreateNewStream())
-        .Times(1)
-        .WillOnce(Return(kDummyStream));
-    EXPECT_EQ(kDummyStream, host_.CreateStreamOnNewPipeline(
-        kDummyConnection, ssl_config_, proxy_info_, net_log_, true));
-    return pipeline;
-  }
-
-  void ClearTestPipeline(MockPipeline* pipeline) {
-    pipeline->SetState(0, true, true);
-    host_.OnPipelineHasCapacity(pipeline);
-  }
-
-  NiceMock<MockHostDelegate> delegate_;
-  HostPortPair origin_;
-  MockPipelineFactory* factory_;
-  HttpPipelinedHost host_;
-
-  SSLConfig ssl_config_;
-  ProxyInfo proxy_info_;
-  BoundNetLog net_log_;
-};
-
-TEST_F(HttpPipelinedHostTest, Delegate) {
-  EXPECT_TRUE(origin_.Equals(host_.origin()));
-}
-
-TEST_F(HttpPipelinedHostTest, OnHostIdle) {
-  MockPipeline* pipeline = AddTestPipeline(0, false, true);
-
-  EXPECT_CALL(delegate_, OnHostHasAdditionalCapacity(&host_))
-      .Times(0);
-  EXPECT_CALL(delegate_, OnHostIdle(&host_))
-      .Times(1);
-  host_.OnPipelineHasCapacity(pipeline);
-}
-
-TEST_F(HttpPipelinedHostTest, OnHostHasAdditionalCapacity) {
-  MockPipeline* pipeline = AddTestPipeline(1, true, true);
-
-  EXPECT_CALL(delegate_, OnHostHasAdditionalCapacity(&host_))
-      .Times(2);
-  EXPECT_CALL(delegate_, OnHostIdle(&host_))
-      .Times(0);
-
-  host_.OnPipelineHasCapacity(pipeline);
-
-  EXPECT_CALL(delegate_, OnHostIdle(&host_))
-      .Times(1);
-  ClearTestPipeline(pipeline);
-}
-
-TEST_F(HttpPipelinedHostTest, IgnoresUnusablePipeline) {
-  MockPipeline* pipeline = AddTestPipeline(1, false, true);
-
-  EXPECT_FALSE(host_.IsExistingPipelineAvailable());
-  EXPECT_EQ(NULL, host_.CreateStreamOnExistingPipeline());
-
-  ClearTestPipeline(pipeline);
-}
-
-TEST_F(HttpPipelinedHostTest, IgnoresInactivePipeline) {
-  MockPipeline* pipeline = AddTestPipeline(1, true, false);
-
-  EXPECT_FALSE(host_.IsExistingPipelineAvailable());
-  EXPECT_EQ(NULL, host_.CreateStreamOnExistingPipeline());
-
-  ClearTestPipeline(pipeline);
-}
-
-TEST_F(HttpPipelinedHostTest, IgnoresFullPipeline) {
-  MockPipeline* pipeline = AddTestPipeline(kMaxCapacity, true, true);
-
-  EXPECT_FALSE(host_.IsExistingPipelineAvailable());
-  EXPECT_EQ(NULL, host_.CreateStreamOnExistingPipeline());
-
-  ClearTestPipeline(pipeline);
-}
-
-TEST_F(HttpPipelinedHostTest, PicksLeastLoadedPipeline) {
-  MockPipeline* full_pipeline = AddTestPipeline(kMaxCapacity, true, true);
-  MockPipeline* usable_pipeline = AddTestPipeline(kMaxCapacity - 1, true, true);
-  MockPipeline* empty_pipeline = AddTestPipeline(0, true, true);
-
-  EXPECT_TRUE(host_.IsExistingPipelineAvailable());
-  EXPECT_CALL(*empty_pipeline, CreateNewStream())
-      .Times(1)
-      .WillOnce(ReturnNull());
-  EXPECT_EQ(NULL, host_.CreateStreamOnExistingPipeline());
-
-  ClearTestPipeline(full_pipeline);
-  ClearTestPipeline(usable_pipeline);
-  ClearTestPipeline(empty_pipeline);
-}
-
-TEST_F(HttpPipelinedHostTest, EmptyPipelineIsRemoved) {
-  MockPipeline* empty_pipeline = AddTestPipeline(0, true, true);
-
-  EXPECT_TRUE(host_.IsExistingPipelineAvailable());
-  EXPECT_CALL(*empty_pipeline, CreateNewStream())
-      .Times(1)
-      .WillOnce(Return(kDummyStream));
-  EXPECT_EQ(kDummyStream, host_.CreateStreamOnExistingPipeline());
-
-  ClearTestPipeline(empty_pipeline);
-
-  EXPECT_FALSE(host_.IsExistingPipelineAvailable());
-  EXPECT_EQ(NULL, host_.CreateStreamOnExistingPipeline());
-}
-
-}  // namespace net