Revert of Remove webrtc/libjingle/{xmllite,xmpp}

webrtc/libjingle/xmllite/xmlnsstack_unittest.cc

Index: webrtc/libjingle/xmllite/xmlnsstack_unittest.cc
diff --git a/webrtc/libjingle/xmllite/xmlnsstack_unittest.cc b/webrtc/libjingle/xmllite/xmlnsstack_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..a57a4b0764c275ed4a08579d4d06dad25acb3afd
--- /dev/null
+++ b/webrtc/libjingle/xmllite/xmlnsstack_unittest.cc
@@ -0,0 +1,241 @@
+/*
+ *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "webrtc/libjingle/xmllite/xmlnsstack.h"
+
+#include <iostream>
+#include <sstream>
+#include <string>
+
+#include "webrtc/libjingle/xmllite/xmlconstants.h"
+#include "webrtc/base/common.h"
+#include "webrtc/base/gunit.h"
+
+using buzz::NS_XML;
+using buzz::NS_XMLNS;
+using buzz::QName;
+using buzz::XmlnsStack;
+
+TEST(XmlnsStackTest, TestBuiltin) {
+  XmlnsStack stack;
+
+  EXPECT_EQ(std::string(NS_XML), stack.NsForPrefix("xml").first);
+  EXPECT_EQ(std::string(NS_XMLNS), stack.NsForPrefix("xmlns").first);
+  EXPECT_EQ("", stack.NsForPrefix("").first);
+
+  EXPECT_EQ("xml", stack.PrefixForNs(NS_XML, false).first);
+  EXPECT_EQ("xmlns", stack.PrefixForNs(NS_XMLNS, false).first);
+  EXPECT_EQ("", stack.PrefixForNs("", false).first);
+  EXPECT_EQ("", stack.PrefixForNs("", true).first);
+}
+
+TEST(XmlnsStackTest, TestNsForPrefix) {
+ XmlnsStack stack;
+  stack.AddXmlns("pre1", "ns1");
+  stack.AddXmlns("pre2", "ns2");
+  stack.AddXmlns("pre1", "ns3");
+  stack.AddXmlns("", "ns4");
+
+  EXPECT_EQ("ns3", stack.NsForPrefix("pre1").first);
+  EXPECT_TRUE(stack.NsForPrefix("pre1").second);
+  EXPECT_EQ("ns2", stack.NsForPrefix("pre2").first);
+  EXPECT_EQ("ns4", stack.NsForPrefix("").first);
+  EXPECT_EQ("", stack.NsForPrefix("pre3").first);
+  EXPECT_FALSE(stack.NsForPrefix("pre3").second);
+}
+
+TEST(XmlnsStackTest, TestPrefixForNs) {
+  XmlnsStack stack;
+  stack.AddXmlns("pre1", "ns1");
+  stack.AddXmlns("pre2", "ns2");
+  stack.AddXmlns("pre1", "ns3");
+  stack.AddXmlns("pre3", "ns2");
+  stack.AddXmlns("pre4", "ns4");
+  stack.AddXmlns("", "ns4");
+
+  EXPECT_EQ("", stack.PrefixForNs("ns1", false).first);
+  EXPECT_FALSE(stack.PrefixForNs("ns1", false).second);
+  EXPECT_EQ("", stack.PrefixForNs("ns1", true).first);
+  EXPECT_FALSE(stack.PrefixForNs("ns1", true).second);
+  EXPECT_EQ("pre3", stack.PrefixForNs("ns2", false).first);
+  EXPECT_TRUE(stack.PrefixForNs("ns2", false).second);
+  EXPECT_EQ("pre3", stack.PrefixForNs("ns2", true).first);
+  EXPECT_TRUE(stack.PrefixForNs("ns2", true).second);
+  EXPECT_EQ("pre1", stack.PrefixForNs("ns3", false).first);
+  EXPECT_EQ("pre1", stack.PrefixForNs("ns3", true).first);
+  EXPECT_EQ("", stack.PrefixForNs("ns4", false).first);
+  EXPECT_TRUE(stack.PrefixForNs("ns4", false).second);
+  EXPECT_EQ("pre4", stack.PrefixForNs("ns4", true).first);
+  EXPECT_EQ("", stack.PrefixForNs("ns5", false).first);
+  EXPECT_FALSE(stack.PrefixForNs("ns5", false).second);
+  EXPECT_EQ("", stack.PrefixForNs("ns5", true).first);
+  EXPECT_EQ("", stack.PrefixForNs("", false).first);
+  EXPECT_EQ("", stack.PrefixForNs("", true).first);
+
+  stack.AddXmlns("", "ns6");
+  EXPECT_EQ("", stack.PrefixForNs("ns6", false).first);
+  EXPECT_TRUE(stack.PrefixForNs("ns6", false).second);
+  EXPECT_EQ("", stack.PrefixForNs("ns6", true).first);
+  EXPECT_FALSE(stack.PrefixForNs("ns6", true).second);
+}
+
+TEST(XmlnsStackTest, TestFrames) {
+  XmlnsStack stack;
+  stack.PushFrame();
+  stack.AddXmlns("pre1", "ns1");
+  stack.AddXmlns("pre2", "ns2");
+
+  stack.PushFrame();
+  stack.AddXmlns("pre1", "ns3");
+  stack.AddXmlns("pre3", "ns2");
+  stack.AddXmlns("pre4", "ns4");
+
+  stack.PushFrame();
+  stack.PushFrame();
+  stack.AddXmlns("", "ns4");
+
+  // basic test
+  EXPECT_EQ("ns3", stack.NsForPrefix("pre1").first);
+  EXPECT_EQ("ns2", stack.NsForPrefix("pre2").first);
+  EXPECT_EQ("ns2", stack.NsForPrefix("pre3").first);
+  EXPECT_EQ("ns4", stack.NsForPrefix("pre4").first);
+  EXPECT_EQ("", stack.NsForPrefix("pre5").first);
+  EXPECT_FALSE(stack.NsForPrefix("pre5").second);
+  EXPECT_EQ("ns4", stack.NsForPrefix("").first);
+  EXPECT_TRUE(stack.NsForPrefix("").second);
+
+  // pop the default xmlns definition
+  stack.PopFrame();
+  EXPECT_EQ("ns3", stack.NsForPrefix("pre1").first);
+  EXPECT_EQ("ns2", stack.NsForPrefix("pre2").first);
+  EXPECT_EQ("ns2", stack.NsForPrefix("pre3").first);
+  EXPECT_EQ("ns4", stack.NsForPrefix("pre4").first);
+  EXPECT_EQ("", stack.NsForPrefix("pre5").first);
+  EXPECT_FALSE(stack.NsForPrefix("pre5").second);
+  EXPECT_EQ("", stack.NsForPrefix("").first);
+  EXPECT_TRUE(stack.NsForPrefix("").second);
+
+  // pop empty frame (nop)
+  stack.PopFrame();
+  EXPECT_EQ("ns3", stack.NsForPrefix("pre1").first);
+  EXPECT_EQ("ns2", stack.NsForPrefix("pre2").first);
+  EXPECT_EQ("ns2", stack.NsForPrefix("pre3").first);
+  EXPECT_EQ("ns4", stack.NsForPrefix("pre4").first);
+  EXPECT_EQ("", stack.NsForPrefix("pre5").first);
+  EXPECT_FALSE(stack.NsForPrefix("pre5").second);
+  EXPECT_EQ("", stack.NsForPrefix("").first);
+  EXPECT_TRUE(stack.NsForPrefix("").second);
+
+  // pop frame with three defs
+  stack.PopFrame();
+  EXPECT_EQ("ns1", stack.NsForPrefix("pre1").first);
+  EXPECT_EQ("ns2", stack.NsForPrefix("pre2").first);
+  EXPECT_EQ("", stack.NsForPrefix("pre3").first);
+  EXPECT_FALSE(stack.NsForPrefix("pre3").second);
+  EXPECT_EQ("", stack.NsForPrefix("pre4").first);
+  EXPECT_FALSE(stack.NsForPrefix("pre4").second);
+  EXPECT_EQ("", stack.NsForPrefix("pre5").first);
+  EXPECT_FALSE(stack.NsForPrefix("pre5").second);
+  EXPECT_EQ("", stack.NsForPrefix("").first);
+  EXPECT_TRUE(stack.NsForPrefix("").second);
+
+  // pop frame with last two defs
+  stack.PopFrame();
+  EXPECT_FALSE(stack.NsForPrefix("pre1").second);
+  EXPECT_FALSE(stack.NsForPrefix("pre2").second);
+  EXPECT_FALSE(stack.NsForPrefix("pre3").second);
+  EXPECT_FALSE(stack.NsForPrefix("pre4").second);
+  EXPECT_FALSE(stack.NsForPrefix("pre5").second);
+  EXPECT_TRUE(stack.NsForPrefix("").second);
+  EXPECT_EQ("", stack.NsForPrefix("pre1").first);
+  EXPECT_EQ("", stack.NsForPrefix("pre2").first);
+  EXPECT_EQ("", stack.NsForPrefix("pre3").first);
+  EXPECT_EQ("", stack.NsForPrefix("pre4").first);
+  EXPECT_EQ("", stack.NsForPrefix("pre5").first);
+  EXPECT_EQ("", stack.NsForPrefix("").first);
+}
+
+TEST(XmlnsStackTest, TestAddNewPrefix) {
+  XmlnsStack stack;
+
+  // builtin namespaces cannot be added
+  EXPECT_FALSE(stack.AddNewPrefix("", true).second);
+  EXPECT_FALSE(stack.AddNewPrefix("", false).second);
+  EXPECT_FALSE(stack.AddNewPrefix(NS_XML, true).second);
+  EXPECT_FALSE(stack.AddNewPrefix(NS_XML, false).second);
+  EXPECT_FALSE(stack.AddNewPrefix(NS_XMLNS, true).second);
+  EXPECT_FALSE(stack.AddNewPrefix(NS_XMLNS, false).second);
+
+  // namespaces already added cannot be added again.
+  EXPECT_EQ("foo", stack.AddNewPrefix("http://a.b.com/foo.htm", true).first);
+  EXPECT_EQ("bare", stack.AddNewPrefix("http://a.b.com/bare", false).first);
+  EXPECT_EQ("z", stack.AddNewPrefix("z", false).first);
+  EXPECT_FALSE(stack.AddNewPrefix("http://a.b.com/foo.htm", true).second);
+  EXPECT_FALSE(stack.AddNewPrefix("http://a.b.com/bare", true).second);
+  EXPECT_FALSE(stack.AddNewPrefix("z", true).second);
+  EXPECT_FALSE(stack.AddNewPrefix("http://a.b.com/foo.htm", false).second);
+  EXPECT_FALSE(stack.AddNewPrefix("http://a.b.com/bare", false).second);
+  EXPECT_FALSE(stack.AddNewPrefix("z", false).second);
+
+  // default namespace usable by non-attributes only
+  stack.AddXmlns("", "http://my/default");
+  EXPECT_FALSE(stack.AddNewPrefix("http://my/default", false).second);
+  EXPECT_EQ("def", stack.AddNewPrefix("http://my/default", true).first);
+
+  // namespace cannot start with 'xml'
+  EXPECT_EQ("ns", stack.AddNewPrefix("http://a.b.com/xmltest", true).first);
+  EXPECT_EQ("ns2", stack.AddNewPrefix("xmlagain", false).first);
+
+  // verify added namespaces are still defined
+  EXPECT_EQ("http://a.b.com/foo.htm", stack.NsForPrefix("foo").first);
+  EXPECT_TRUE(stack.NsForPrefix("foo").second);
+  EXPECT_EQ("http://a.b.com/bare", stack.NsForPrefix("bare").first);
+  EXPECT_TRUE(stack.NsForPrefix("bare").second);
+  EXPECT_EQ("z", stack.NsForPrefix("z").first);
+  EXPECT_TRUE(stack.NsForPrefix("z").second);
+  EXPECT_EQ("http://my/default", stack.NsForPrefix("").first);
+  EXPECT_TRUE(stack.NsForPrefix("").second);
+  EXPECT_EQ("http://my/default", stack.NsForPrefix("def").first);
+  EXPECT_TRUE(stack.NsForPrefix("def").second);
+  EXPECT_EQ("http://a.b.com/xmltest", stack.NsForPrefix("ns").first);
+  EXPECT_TRUE(stack.NsForPrefix("ns").second);
+  EXPECT_EQ("xmlagain", stack.NsForPrefix("ns2").first);
+  EXPECT_TRUE(stack.NsForPrefix("ns2").second);
+}
+
+TEST(XmlnsStackTest, TestFormatQName) {
+  XmlnsStack stack;
+  stack.AddXmlns("pre1", "ns1");
+  stack.AddXmlns("pre2", "ns2");
+  stack.AddXmlns("pre1", "ns3");
+  stack.AddXmlns("", "ns4");
+
+  EXPECT_EQ("zip",
+      stack.FormatQName(QName("ns1", "zip"), false));  // no match
+  EXPECT_EQ("pre2:abracadabra",
+      stack.FormatQName(QName("ns2", "abracadabra"), false));
+  EXPECT_EQ("pre1:a",
+      stack.FormatQName(QName("ns3", "a"), false));
+  EXPECT_EQ("simple",
+      stack.FormatQName(QName("ns4", "simple"), false));
+  EXPECT_EQ("root",
+      stack.FormatQName(QName("", "root"), false));  // no match
+
+  EXPECT_EQ("zip",
+      stack.FormatQName(QName("ns1", "zip"), true));  // no match
+  EXPECT_EQ("pre2:abracadabra",
+      stack.FormatQName(QName("ns2", "abracadabra"), true));
+  EXPECT_EQ("pre1:a",
+      stack.FormatQName(QName("ns3", "a"), true));
+  EXPECT_EQ("simple",
+      stack.FormatQName(QName("ns4", "simple"), true));  // no match
+  EXPECT_EQ("root",
+      stack.FormatQName(QName("", "root"), true));
+}