Remove dependency on XMPP implementation in WebRTC

remoting/signaling/xmpp_stream_parser_unittest.cc

+// Copyright 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 "remoting/signaling/xmpp_stream_parser.h"
+
+#include "base/bind.h"
+#include "base/memory/scoped_vector.h"
+#include "base/message_loop/message_loop.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/webrtc/libjingle/xmllite/xmlelement.h"
+
+namespace remoting {
+
+class XmppStreamParserTest : public testing::Test {
+ public:
+  XmppStreamParserTest() : error_(false) {}
+
+  void SetUp() override {
+    parser_.reset(new remoting::XmppStreamParser());
+    parser_->SetCallbacks(
+        base::Bind(&XmppStreamParserTest::OnStanza, base::Unretained(this)),
+        base::Bind(&XmppStreamParserTest::OnError, base::Unretained(this)));
+  }
+
+  void OnStanza(scoped_ptr<buzz::XmlElement> stanza) {
+    received_stanzas_.push_back(stanza.Pass());
+  }
+
+  void OnError() {
+    error_ = true;
+  }
+
+ protected:
+  base::MessageLoop message_loop_;
+
+  scoped_ptr<XmppStreamParser> parser_;
+  ScopedVector<buzz::XmlElement> received_stanzas_;
+  bool error_;
+};
+
+TEST_F(XmppStreamParserTest, ParseXmppStream) {
+  parser_->AppendData("<stream><iq>text</iq>");
+  EXPECT_EQ(received_stanzas_[0]->Str(), "<iq>text</iq>");
+};
+
+TEST_F(XmppStreamParserTest, HandleMultipleIncomingStanzas) {
+  parser_->AppendData("<stream><iq>text</iq><iq>more text</iq>");
+  EXPECT_EQ(received_stanzas_[0]->Str(), "<iq>text</iq>");
+  EXPECT_EQ(received_stanzas_[1]->Str(), "<iq>more text</iq>");
+};
+
+TEST_F(XmppStreamParserTest, IgnoreWhitespaceBetweenStanzas) {
+  parser_->AppendData("<stream> <iq>text</iq>");
+  EXPECT_EQ(received_stanzas_[0]->Str(), "<iq>text</iq>");
+};
+
+TEST_F(XmppStreamParserTest, AssembleMessagesFromChunks) {
+  parser_->AppendData("<stream><i");
+  parser_->AppendData("q>");
+
+  // Split one UTF-8 sequence into two chunks
+  std::string data = "😃";
+  parser_->AppendData(data.substr(0, 2));
+  parser_->AppendData(data.substr(2));
+
+  parser_->AppendData("</iq>");
+
+  EXPECT_EQ(received_stanzas_[0]->Str(), "<iq>😃</iq>");
+};
+
+TEST_F(XmppStreamParserTest, StopParsingOnErrors) {
+  parser_->AppendData("<stream><invalidtag p!='a'></invalidtag><iq>text</iq>");
+  EXPECT_TRUE(error_);
+  EXPECT_TRUE(received_stanzas_.empty());
+};
+
+TEST_F(XmppStreamParserTest, FailOnInvalidStreamHeader) {
+  parser_->AppendData("<stream p!='a'>");
+  EXPECT_TRUE(error_);
+};
+
+TEST_F(XmppStreamParserTest, FailOnLooseText) {
+  parser_->AppendData("stream<");
+  EXPECT_TRUE(error_);
+};
+
+}  // namespace remoting