[Chromoting] Implement HostExperimentSessionPlugin

remoting/protocol/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/protocol/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 {
+namespace protocol {
+
+namespace {
+
+constexpr char XmlNamespace[] = "TestXmlNamespace";
+constexpr char XmlTagName[] = "TestXmlTagName";
+
+std::unique_ptr<XmlElement> NewAttachment() {
+  return std::unique_ptr<XmlElement>(
+      new XmlElement(QName(XmlNamespace, XmlTagName)));
+}
+
+}  // namespace
+
+TEST(HostExperimentSessionPluginTest, AttachAttributes) {
+  HostExperimentSessionPlugin plugin(base::Bind(&NewAttachment));
+  std::unique_ptr<XmlElement> attachments;
+  plugin.OnSending(Session::ACCEPTING, JingleMessage::SESSION_ACCEPT,
+                   &attachments);
+  ASSERT_TRUE(attachments);
+  XmlElement* attributes_tag = attachments->FirstNamed(
+      QName(kChromotingXmlNamespace, "host-attributes"));
+  ASSERT_TRUE(attributes_tag);
+  ASSERT_EQ(attributes_tag->BodyText(), GetHostAttributes());
+
+  attachments.reset();
+  plugin.OnSending(Session::AUTHENTICATED, JingleMessage::SESSION_ACCEPT,
+                   &attachments);
+  ASSERT_FALSE(attachments);
+}
+
+TEST(HostExperimentSessionPluginTest, LoadConfiguration) {
+  std::unique_ptr<XmlElement> attachment = NewAttachment();
+  XmlElement* configuration =
+      new XmlElement(QName(kChromotingXmlNamespace, "host-configuration"));
+  configuration->SetBodyText("This Is A Test Configuration");
+  attachment->AddElement(configuration);
+  {
+    HostExperimentSessionPlugin plugin(base::Bind(&NewAttachment));
+    plugin.OnReceiving(Session::AUTHENTICATING, JingleMessage::SESSION_INFO,
+                       attachment);
+    ASSERT_EQ(plugin.configuration(), "This Is A Test Configuration");
+  }
+  {
+    HostExperimentSessionPlugin plugin(base::Bind(&NewAttachment));
+    plugin.OnReceiving(Session::AUTHENTICATED, JingleMessage::SESSION_INFO,
+                       attachment);
+    ASSERT_TRUE(plugin.configuration().empty());
+  }
+}
+
+}  // namespace protocol
+}  // namespace remoting