Split the FDE XML file into indiviual class files.

This Cl splits the fde_xml_int file apart into individual class files.
Includes are fixed as needed. fde_xml.h is also removed and the needed
defines moved to more appropiate places.

Change-Id: I29774dabc4d0fb2d5092fcbbe7853f03401b6ec7
Reviewed-on: https://pdfium-review.googlesource.com/3616
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>

1 files changed, 632 insertions, 0 deletions

diff --git a/xfa/fde/xml/cfde_xmlsyntaxparser_unittest.cpp b/xfa/fde/xml/cfde_xmlsyntaxparser_unittest.cpp
new file mode 100644
index 0000000000..9b04028123
--- /dev/null
+++ b/xfa/fde/xml/cfde_xmlsyntaxparser_unittest.cpp
@@ -0,0 +1,632 @@
+// Copyright 2016 PDFium 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 "xfa/fde/xml/cfde_xmlsyntaxparser.h"
+
+#include <memory>
+
+#include "testing/gtest/include/gtest/gtest.h"
+#include "xfa/fgas/crt/ifgas_stream.h"
+
+TEST(CFDE_XMLSyntaxParser, CData) {
+  const wchar_t* input =
+      L"<script contentType=\"application/x-javascript\">\n"
+      L"  <![CDATA[\n"
+      L"    if (a[1] < 3)\n"
+      L"      app.alert(\"Tclams\");\n"
+      L"  ]]>\n"
+      L"</script>";
+
+  const wchar_t* cdata =
+      L"\n"
+      L"    if (a[1] < 3)\n"
+      L"      app.alert(\"Tclams\");\n"
+      L"  ";
+
+  // We * sizeof(wchar_t) because we pass in the uint8_t, not the wchar_t.
+  size_t len = FXSYS_wcslen(input) * sizeof(wchar_t);
+  CFX_RetainPtr<IFGAS_Stream> stream = IFGAS_Stream::CreateStream(
+      reinterpret_cast<uint8_t*>(const_cast<wchar_t*>(input)), len, 0);
+  CFDE_XMLSyntaxParser parser;
+  parser.Init(stream, 256);
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementOpen, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::TagName, parser.DoSyntaxParse());
+
+  CFX_WideString data;
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriName, parser.DoSyntaxParse());
+  parser.GetAttributeName(data);
+  EXPECT_EQ(L"contentType", data);
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriValue, parser.DoSyntaxParse());
+  parser.GetAttributeValue(data);
+  EXPECT_EQ(L"application/x-javascript", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementBreak, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n  ", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::CData, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(cdata, data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementClose, parser.DoSyntaxParse());
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::EndOfString, parser.DoSyntaxParse());
+}
+
+TEST(CFDE_XMLSyntaxParser, CDataWithInnerScript) {
+  const wchar_t* input =
+      L"<script contentType=\"application/x-javascript\">\n"
+      L"  <![CDATA[\n"
+      L"    if (a[1] < 3)\n"
+      L"      app.alert(\"Tclams\");\n"
+      L"    </script>\n"
+      L"  ]]>\n"
+      L"</script>";
+
+  const wchar_t* cdata =
+      L"\n"
+      L"    if (a[1] < 3)\n"
+      L"      app.alert(\"Tclams\");\n"
+      L"    </script>\n"
+      L"  ";
+
+  // We * sizeof(wchar_t) because we pass in the uint8_t, not the wchar_t.
+  size_t len = FXSYS_wcslen(input) * sizeof(wchar_t);
+  CFX_RetainPtr<IFGAS_Stream> stream = IFGAS_Stream::CreateStream(
+      reinterpret_cast<uint8_t*>(const_cast<wchar_t*>(input)), len, 0);
+  CFDE_XMLSyntaxParser parser;
+  parser.Init(stream, 256);
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementOpen, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::TagName, parser.DoSyntaxParse());
+
+  CFX_WideString data;
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriName, parser.DoSyntaxParse());
+  parser.GetAttributeName(data);
+  EXPECT_EQ(L"contentType", data);
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriValue, parser.DoSyntaxParse());
+  parser.GetAttributeValue(data);
+  EXPECT_EQ(L"application/x-javascript", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementBreak, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n  ", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::CData, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(cdata, data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementClose, parser.DoSyntaxParse());
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::EndOfString, parser.DoSyntaxParse());
+}
+
+TEST(CFDE_XMLSyntaxParser, ArrowBangArrow) {
+  const wchar_t* input =
+      L"<script contentType=\"application/x-javascript\">\n"
+      L"  <!>\n"
+      L"</script>";
+
+  // We * sizeof(wchar_t) because we pass in the uint8_t, not the wchar_t.
+  size_t len = FXSYS_wcslen(input) * sizeof(wchar_t);
+  CFX_RetainPtr<IFGAS_Stream> stream = IFGAS_Stream::CreateStream(
+      reinterpret_cast<uint8_t*>(const_cast<wchar_t*>(input)), len, 0);
+  CFDE_XMLSyntaxParser parser;
+  parser.Init(stream, 256);
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementOpen, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::TagName, parser.DoSyntaxParse());
+
+  CFX_WideString data;
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriName, parser.DoSyntaxParse());
+  parser.GetAttributeName(data);
+  EXPECT_EQ(L"contentType", data);
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriValue, parser.DoSyntaxParse());
+  parser.GetAttributeValue(data);
+  EXPECT_EQ(L"application/x-javascript", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementBreak, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n  ", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementClose, parser.DoSyntaxParse());
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::EndOfString, parser.DoSyntaxParse());
+}
+
+TEST(CFDE_XMLSyntaxParser, ArrowBangBracketArrow) {
+  const wchar_t* input =
+      L"<script contentType=\"application/x-javascript\">\n"
+      L"  <![>\n"
+      L"</script>";
+
+  // We * sizeof(wchar_t) because we pass in the uint8_t, not the wchar_t.
+  size_t len = FXSYS_wcslen(input) * sizeof(wchar_t);
+  CFX_RetainPtr<IFGAS_Stream> stream = IFGAS_Stream::CreateStream(
+      reinterpret_cast<uint8_t*>(const_cast<wchar_t*>(input)), len, 0);
+  CFDE_XMLSyntaxParser parser;
+  parser.Init(stream, 256);
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementOpen, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::TagName, parser.DoSyntaxParse());
+
+  CFX_WideString data;
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriName, parser.DoSyntaxParse());
+  parser.GetAttributeName(data);
+  EXPECT_EQ(L"contentType", data);
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriValue, parser.DoSyntaxParse());
+  parser.GetAttributeValue(data);
+  EXPECT_EQ(L"application/x-javascript", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementBreak, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n  ", data);
+
+  // Parser walks to end of input.
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::EndOfString, parser.DoSyntaxParse());
+}
+
+TEST(CFDE_XMLSyntaxParser, IncompleteCData) {
+  const wchar_t* input =
+      L"<script contentType=\"application/x-javascript\">\n"
+      L"  <![CDATA>\n"
+      L"</script>";
+
+  // We * sizeof(wchar_t) because we pass in the uint8_t, not the wchar_t.
+  size_t len = FXSYS_wcslen(input) * sizeof(wchar_t);
+  CFX_RetainPtr<IFGAS_Stream> stream = IFGAS_Stream::CreateStream(
+      reinterpret_cast<uint8_t*>(const_cast<wchar_t*>(input)), len, 0);
+  CFDE_XMLSyntaxParser parser;
+  parser.Init(stream, 256);
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementOpen, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::TagName, parser.DoSyntaxParse());
+
+  CFX_WideString data;
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriName, parser.DoSyntaxParse());
+  parser.GetAttributeName(data);
+  EXPECT_EQ(L"contentType", data);
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriValue, parser.DoSyntaxParse());
+  parser.GetAttributeValue(data);
+  EXPECT_EQ(L"application/x-javascript", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementBreak, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n  ", data);
+
+  // Parser walks to end of input.
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::EndOfString, parser.DoSyntaxParse());
+}
+
+TEST(CFDE_XMLSyntaxParser, UnClosedCData) {
+  const wchar_t* input =
+      L"<script contentType=\"application/x-javascript\">\n"
+      L"  <![CDATA[\n"
+      L"</script>";
+
+  // We * sizeof(wchar_t) because we pass in the uint8_t, not the wchar_t.
+  size_t len = FXSYS_wcslen(input) * sizeof(wchar_t);
+  CFX_RetainPtr<IFGAS_Stream> stream = IFGAS_Stream::CreateStream(
+      reinterpret_cast<uint8_t*>(const_cast<wchar_t*>(input)), len, 0);
+  CFDE_XMLSyntaxParser parser;
+  parser.Init(stream, 256);
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementOpen, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::TagName, parser.DoSyntaxParse());
+
+  CFX_WideString data;
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriName, parser.DoSyntaxParse());
+  parser.GetAttributeName(data);
+  EXPECT_EQ(L"contentType", data);
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriValue, parser.DoSyntaxParse());
+  parser.GetAttributeValue(data);
+  EXPECT_EQ(L"application/x-javascript", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementBreak, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n  ", data);
+
+  // Parser walks to end of input.
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::EndOfString, parser.DoSyntaxParse());
+}
+
+TEST(CFDE_XMLSyntaxParser, EmptyCData) {
+  const wchar_t* input =
+      L"<script contentType=\"application/x-javascript\">\n"
+      L"  <![CDATA[]]>\n"
+      L"</script>";
+
+  // We * sizeof(wchar_t) because we pass in the uint8_t, not the wchar_t.
+  size_t len = FXSYS_wcslen(input) * sizeof(wchar_t);
+  CFX_RetainPtr<IFGAS_Stream> stream = IFGAS_Stream::CreateStream(
+      reinterpret_cast<uint8_t*>(const_cast<wchar_t*>(input)), len, 0);
+  CFDE_XMLSyntaxParser parser;
+  parser.Init(stream, 256);
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementOpen, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::TagName, parser.DoSyntaxParse());
+
+  CFX_WideString data;
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriName, parser.DoSyntaxParse());
+  parser.GetAttributeName(data);
+  EXPECT_EQ(L"contentType", data);
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriValue, parser.DoSyntaxParse());
+  parser.GetAttributeValue(data);
+  EXPECT_EQ(L"application/x-javascript", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementBreak, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n  ", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::CData, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementClose, parser.DoSyntaxParse());
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::EndOfString, parser.DoSyntaxParse());
+}
+
+TEST(CFDE_XMLSyntaxParser, Comment) {
+  const wchar_t* input =
+      L"<script contentType=\"application/x-javascript\">\n"
+      L"  <!-- A Comment -->\n"
+      L"</script>";
+
+  // We * sizeof(wchar_t) because we pass in the uint8_t, not the wchar_t.
+  size_t len = FXSYS_wcslen(input) * sizeof(wchar_t);
+  CFX_RetainPtr<IFGAS_Stream> stream = IFGAS_Stream::CreateStream(
+      reinterpret_cast<uint8_t*>(const_cast<wchar_t*>(input)), len, 0);
+  CFDE_XMLSyntaxParser parser;
+  parser.Init(stream, 256);
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementOpen, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::TagName, parser.DoSyntaxParse());
+
+  CFX_WideString data;
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriName, parser.DoSyntaxParse());
+  parser.GetAttributeName(data);
+  EXPECT_EQ(L"contentType", data);
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriValue, parser.DoSyntaxParse());
+  parser.GetAttributeValue(data);
+  EXPECT_EQ(L"application/x-javascript", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementBreak, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n  ", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementClose, parser.DoSyntaxParse());
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::EndOfString, parser.DoSyntaxParse());
+}
+
+TEST(CFDE_XMLSyntaxParser, IncorrectCommentStart) {
+  const wchar_t* input =
+      L"<script contentType=\"application/x-javascript\">\n"
+      L"  <!- A Comment -->\n"
+      L"</script>";
+
+  // We * sizeof(wchar_t) because we pass in the uint8_t, not the wchar_t.
+  size_t len = FXSYS_wcslen(input) * sizeof(wchar_t);
+  CFX_RetainPtr<IFGAS_Stream> stream = IFGAS_Stream::CreateStream(
+      reinterpret_cast<uint8_t*>(const_cast<wchar_t*>(input)), len, 0);
+  CFDE_XMLSyntaxParser parser;
+  parser.Init(stream, 256);
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementOpen, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::TagName, parser.DoSyntaxParse());
+
+  CFX_WideString data;
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriName, parser.DoSyntaxParse());
+  parser.GetAttributeName(data);
+  EXPECT_EQ(L"contentType", data);
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriValue, parser.DoSyntaxParse());
+  parser.GetAttributeValue(data);
+  EXPECT_EQ(L"application/x-javascript", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementBreak, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n  ", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementClose, parser.DoSyntaxParse());
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::EndOfString, parser.DoSyntaxParse());
+}
+
+TEST(CFDE_XMLSyntaxParser, CommentEmpty) {
+  const wchar_t* input =
+      L"<script contentType=\"application/x-javascript\">\n"
+      L"  <!---->\n"
+      L"</script>";
+
+  // We * sizeof(wchar_t) because we pass in the uint8_t, not the wchar_t.
+  size_t len = FXSYS_wcslen(input) * sizeof(wchar_t);
+  CFX_RetainPtr<IFGAS_Stream> stream = IFGAS_Stream::CreateStream(
+      reinterpret_cast<uint8_t*>(const_cast<wchar_t*>(input)), len, 0);
+  CFDE_XMLSyntaxParser parser;
+  parser.Init(stream, 256);
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementOpen, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::TagName, parser.DoSyntaxParse());
+
+  CFX_WideString data;
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriName, parser.DoSyntaxParse());
+  parser.GetAttributeName(data);
+  EXPECT_EQ(L"contentType", data);
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriValue, parser.DoSyntaxParse());
+  parser.GetAttributeValue(data);
+  EXPECT_EQ(L"application/x-javascript", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementBreak, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n  ", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementClose, parser.DoSyntaxParse());
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::EndOfString, parser.DoSyntaxParse());
+}
+
+TEST(CFDE_XMLSyntaxParser, CommentThreeDash) {
+  const wchar_t* input =
+      L"<script contentType=\"application/x-javascript\">\n"
+      L"  <!--->\n"
+      L"</script>";
+
+  // We * sizeof(wchar_t) because we pass in the uint8_t, not the wchar_t.
+  size_t len = FXSYS_wcslen(input) * sizeof(wchar_t);
+  CFX_RetainPtr<IFGAS_Stream> stream = IFGAS_Stream::CreateStream(
+      reinterpret_cast<uint8_t*>(const_cast<wchar_t*>(input)), len, 0);
+  CFDE_XMLSyntaxParser parser;
+  parser.Init(stream, 256);
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementOpen, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::TagName, parser.DoSyntaxParse());
+
+  CFX_WideString data;
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriName, parser.DoSyntaxParse());
+  parser.GetAttributeName(data);
+  EXPECT_EQ(L"contentType", data);
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriValue, parser.DoSyntaxParse());
+  parser.GetAttributeValue(data);
+  EXPECT_EQ(L"application/x-javascript", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementBreak, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n  ", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::EndOfString, parser.DoSyntaxParse());
+}
+
+TEST(CFDE_XMLSyntaxParser, CommentTwoDash) {
+  const wchar_t* input =
+      L"<script contentType=\"application/x-javascript\">\n"
+      L"  <!-->\n"
+      L"</script>";
+
+  // We * sizeof(wchar_t) because we pass in the uint8_t, not the wchar_t.
+  size_t len = FXSYS_wcslen(input) * sizeof(wchar_t);
+  CFX_RetainPtr<IFGAS_Stream> stream = IFGAS_Stream::CreateStream(
+      reinterpret_cast<uint8_t*>(const_cast<wchar_t*>(input)), len, 0);
+  CFDE_XMLSyntaxParser parser;
+  parser.Init(stream, 256);
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementOpen, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::TagName, parser.DoSyntaxParse());
+
+  CFX_WideString data;
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriName, parser.DoSyntaxParse());
+  parser.GetAttributeName(data);
+  EXPECT_EQ(L"contentType", data);
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriValue, parser.DoSyntaxParse());
+  parser.GetAttributeValue(data);
+  EXPECT_EQ(L"application/x-javascript", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementBreak, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"\n  ", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::EndOfString, parser.DoSyntaxParse());
+}
+
+TEST(CFDE_XMLSyntaxParser, Entities) {
+  const wchar_t* input =
+      L"<script contentType=\"application/x-javascript\">"
+      L"&#66;"
+      L"&#x54;"
+      L"&#x00000000000000000048;"
+      L"&#x0000000000000000AB48;"
+      L"&#x0000000000000000000;"
+      L"</script>";
+
+  // We * sizeof(wchar_t) because we pass in the uint8_t, not the wchar_t.
+  size_t len = FXSYS_wcslen(input) * sizeof(wchar_t);
+  CFX_RetainPtr<IFGAS_Stream> stream = IFGAS_Stream::CreateStream(
+      reinterpret_cast<uint8_t*>(const_cast<wchar_t*>(input)), len, 0);
+  CFDE_XMLSyntaxParser parser;
+  parser.Init(stream, 256);
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementOpen, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::TagName, parser.DoSyntaxParse());
+
+  CFX_WideString data;
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriName, parser.DoSyntaxParse());
+  parser.GetAttributeName(data);
+  EXPECT_EQ(L"contentType", data);
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriValue, parser.DoSyntaxParse());
+  parser.GetAttributeValue(data);
+  EXPECT_EQ(L"application/x-javascript", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementBreak, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"BTH\xab48", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementClose, parser.DoSyntaxParse());
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::EndOfString, parser.DoSyntaxParse());
+}
+
+TEST(CFDE_XMLSyntaxParser, EntityOverflowHex) {
+  const wchar_t* input =
+      L"<script contentType=\"application/x-javascript\">"
+      L"&#xaDBDFFFFF;"
+      L"&#xafffffffffffffffffffffffffffffffff;"
+      L"</script>";
+
+  // We * sizeof(wchar_t) because we pass in the uint8_t, not the wchar_t.
+  size_t len = FXSYS_wcslen(input) * sizeof(wchar_t);
+  CFX_RetainPtr<IFGAS_Stream> stream = IFGAS_Stream::CreateStream(
+      reinterpret_cast<uint8_t*>(const_cast<wchar_t*>(input)), len, 0);
+  CFDE_XMLSyntaxParser parser;
+  parser.Init(stream, 256);
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementOpen, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::TagName, parser.DoSyntaxParse());
+
+  CFX_WideString data;
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriName, parser.DoSyntaxParse());
+  parser.GetAttributeName(data);
+  EXPECT_EQ(L"contentType", data);
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriValue, parser.DoSyntaxParse());
+  parser.GetAttributeValue(data);
+  EXPECT_EQ(L"application/x-javascript", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementBreak, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"  ", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementClose, parser.DoSyntaxParse());
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::EndOfString, parser.DoSyntaxParse());
+}
+
+TEST(CFDE_XMLSyntaxParser, EntityOverflowDecimal) {
+  const wchar_t* input =
+      L"<script contentType=\"application/x-javascript\">"
+      L"&#2914910205;"
+      L"&#29149102052342342134521341234512351234213452315;"
+      L"</script>";
+
+  // We * sizeof(wchar_t) because we pass in the uint8_t, not the wchar_t.
+  size_t len = FXSYS_wcslen(input) * sizeof(wchar_t);
+  CFX_RetainPtr<IFGAS_Stream> stream = IFGAS_Stream::CreateStream(
+      reinterpret_cast<uint8_t*>(const_cast<wchar_t*>(input)), len, 0);
+  CFDE_XMLSyntaxParser parser;
+  parser.Init(stream, 256);
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementOpen, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::TagName, parser.DoSyntaxParse());
+
+  CFX_WideString data;
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriName, parser.DoSyntaxParse());
+  parser.GetAttributeName(data);
+  EXPECT_EQ(L"contentType", data);
+  EXPECT_EQ(FDE_XmlSyntaxResult::AttriValue, parser.DoSyntaxParse());
+  parser.GetAttributeValue(data);
+  EXPECT_EQ(L"application/x-javascript", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementBreak, parser.DoSyntaxParse());
+  EXPECT_EQ(FDE_XmlSyntaxResult::Text, parser.DoSyntaxParse());
+  parser.GetTextData(data);
+  EXPECT_EQ(L"  ", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::ElementClose, parser.DoSyntaxParse());
+  parser.GetTagName(data);
+  EXPECT_EQ(L"script", data);
+
+  EXPECT_EQ(FDE_XmlSyntaxResult::EndOfString, parser.DoSyntaxParse());
+}