[Chromoting] Implement HostExperimentSessionPlugin

remoting/host/host_experiment_session_plugin_unittest.cc

+// Copyright 2016 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 "remoting/host/host_experiment_session_plugin.h"
+
+#include <memory>
+
+#include "base/bind.h"
+#include "remoting/base/constants.h"
+#include "remoting/host/host_attributes.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/webrtc/libjingle/xmllite/xmlelement.h"
+
+using buzz::QName;
+using buzz::XmlElement;
+
+namespace remoting {
+
+TEST(HostExperimentSessionPluginTest, AttachAttributes) {
+  HostExperimentSessionPlugin plugin;
+  std::unique_ptr<XmlElement> attachments = plugin.GetNextMessage();
+  ASSERT_TRUE(attachments);
+  ASSERT_EQ(attachments->Name(),
+            QName(kChromotingXmlNamespace, "host-attributes"));
+  ASSERT_EQ(attachments->BodyText(), GetHostAttributes());
+
+  attachments.reset();
+  attachments = plugin.GetNextMessage();
+  ASSERT_FALSE(attachments);
+}
+
+TEST(HostExperimentSessionPluginTest, LoadConfiguration) {
+  std::unique_ptr<XmlElement> attachment(
+      new XmlElement(QName(kChromotingXmlNamespace, "attachments")));
+  XmlElement* configuration =
+      new XmlElement(QName(kChromotingXmlNamespace, "host-configuration"));
+  configuration->SetBodyText("This Is A Test Configuration");
+  attachment->AddElement(configuration);
+  HostExperimentSessionPlugin plugin;
+  plugin.OnIncomingMessage(*attachment);
+  ASSERT_TRUE(plugin.configuration_received());
+  ASSERT_EQ(plugin.configuration(), "This Is A Test Configuration");
+}
+
+TEST(HostExperimentSessionPluginTest, IgnoreSecondConfiguration) {
+  std::unique_ptr<XmlElement> attachment(
+      new XmlElement(QName(kChromotingXmlNamespace, "attachments")));
+  XmlElement* configuration =
+      new XmlElement(QName(kChromotingXmlNamespace, "host-configuration"));
+  attachment->AddElement(configuration);
+  configuration->SetBodyText("config1");
+  HostExperimentSessionPlugin plugin;
+  plugin.OnIncomingMessage(*attachment);
+  ASSERT_TRUE(plugin.configuration_received());
+  ASSERT_EQ(plugin.configuration(), "config1");
+
+  configuration->SetBodyText("config2");
+  plugin.OnIncomingMessage(*attachment);
+  ASSERT_TRUE(plugin.configuration_received());
+  ASSERT_EQ(plugin.configuration(), "config1");
+}
+
+}  // namespace remoting