[chromedriver] Add Network Conditions Override Manager and tests

chrome/test/chromedriver/chrome/network_conditions_override_manager_unittest.cc

+// Copyright (c) 2015 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 "base/values.h"
+#include "chrome/test/chromedriver/chrome/network_conditions.h"
+#include "chrome/test/chromedriver/chrome/network_conditions_override_manager.h"
+#include "chrome/test/chromedriver/chrome/recorder_devtools_client.h"
+#include "chrome/test/chromedriver/chrome/status.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+void AssertNetworkConditionsCommand(
+    const Command& command,
+    const NetworkConditions& network_conditions) {
+  ASSERT_EQ("Network.emulateNetworkConditions", command.method);
+  bool offline;
+  double latency, download_throughput, upload_throughput;
+  ASSERT_TRUE(command.params.GetBoolean("offline", &offline));
+  ASSERT_TRUE(command.params.GetDouble("latency", &latency));
+  ASSERT_TRUE(command.params.GetDouble("downloadThroughput",
+                                       &download_throughput));
+  ASSERT_TRUE(command.params.GetDouble("uploadThroughput",
+                                       &upload_throughput));
+  ASSERT_EQ(network_conditions.offline, offline);
+  ASSERT_EQ(network_conditions.latency, latency);
+  ASSERT_EQ(network_conditions.download_throughput, download_throughput);
+  ASSERT_EQ(network_conditions.upload_throughput, upload_throughput);
+}
+
+}  // namespace
+
+TEST(NetworkConditionsOverrideManager, OverrideSendsCommand) {
+  RecorderDevToolsClient client;
+  NetworkConditionsOverrideManager manager(&client);
+  NetworkConditions network_conditions = {false, 100, 750*1024, 750*1024};
+  manager.OverrideNetworkConditions(network_conditions);
+  ASSERT_EQ(3u, client.commands_.size());
+  ASSERT_NO_FATAL_FAILURE(
+     AssertNetworkConditionsCommand(client.commands_[2], network_conditions));
+
+  network_conditions.latency = 200;
+  manager.OverrideNetworkConditions(network_conditions);
+  ASSERT_EQ(6u, client.commands_.size());
+  ASSERT_NO_FATAL_FAILURE(
+      AssertNetworkConditionsCommand(client.commands_[5], network_conditions));
+}
+
+TEST(NetworkConditionsOverrideManager, SendsCommandOnConnect) {
+  RecorderDevToolsClient client;
+  NetworkConditionsOverrideManager manager(&client);
+  ASSERT_EQ(0u, client.commands_.size());
+  ASSERT_EQ(kOk, manager.OnConnected(&client).code());
+
+  NetworkConditions network_conditions = {false, 100, 750*1024, 750*1024};
+  manager.OverrideNetworkConditions(network_conditions);
+  ASSERT_EQ(3u, client.commands_.size());
+  ASSERT_EQ(kOk, manager.OnConnected(&client).code());
+  ASSERT_EQ(6u, client.commands_.size());
+  ASSERT_NO_FATAL_FAILURE(
+      AssertNetworkConditionsCommand(client.commands_[5], network_conditions));
+}
+
+TEST(NetworkConditionsOverrideManager, SendsCommandOnNavigation) {
+  RecorderDevToolsClient client;
+  NetworkConditionsOverrideManager manager(&client);
+  base::DictionaryValue main_frame_params;
+  ASSERT_EQ(kOk,
+            manager.OnEvent(&client, "Page.frameNavigated", main_frame_params)
+                .code());
+  ASSERT_EQ(0u, client.commands_.size());
+
+  NetworkConditions network_conditions = {false, 100, 750*1024, 750*1024};
+  manager.OverrideNetworkConditions(network_conditions);
+  ASSERT_EQ(3u, client.commands_.size());
+  ASSERT_EQ(kOk,
+            manager.OnEvent(&client, "Page.frameNavigated", main_frame_params)
+                .code());
+  ASSERT_EQ(6u, client.commands_.size());
+  ASSERT_NO_FATAL_FAILURE(
+      AssertNetworkConditionsCommand(client.commands_[2], network_conditions));
+
+  base::DictionaryValue sub_frame_params;
+  sub_frame_params.SetString("frame.parentId", "id");
+  ASSERT_EQ(
+      kOk,
+      manager.OnEvent(&client, "Page.frameNavigated", sub_frame_params).code());
+  ASSERT_EQ(6u, client.commands_.size());
+  ASSERT_NO_FATAL_FAILURE(
+      AssertNetworkConditionsCommand(client.commands_[5], network_conditions));
+}