UnitTests.cpp

CPPUnit Tests for this library. Binary should be installed as ui-gxmlcpp-test.

// Local configuration
#include "config.h"

// STDC++
#include <sstream>
#include <fstream>
#include <iostream>

// C++ Libraries
#include <ui-utilcpp/Text.hpp>

#include <ui-gxmlcpp/Conf.hpp>
#include <ui-gxmlcpp/Tree.hpp>
#include <ui-gxmlcpp/XSLTree.hpp>
#include <ui-gxmlcpp/SchemaTree.hpp>
#include <ui-gxmlcpp/RelaxNGTree.hpp>
#include <ui-gxmlcpp/XPathContext.hpp>
#include <ui-gxmlcpp/XPathObject.hpp>
#include <ui-gxmlcpp/XSLTransTree.hpp>

#ifdef WIN32
        #define BOOST_TEST_MAIN
        #include <boost/test/unit_test.hpp>
#else
        #define BOOST_AUTO_TEST_MAIN
        #define BOOST_TEST_DYN_LINK
        #include <boost/test/auto_unit_test.hpp>
        #include <boost/test/floating_point_comparison.hpp>
#endif

namespace UI {
namespace GXML {

// Derive a custom Configuration class from Conf for your project
// (here: UnitTests).
class UnitTestsConf: public Conf
{
public:
        UnitTestsConf()
        {
                setCustomLogging(true);
                setEXSLT();
        }
};

// Exactly _one_ object of this class should be living while your are
// using libxml2/libxslt. Typically, you would put one object in
// main() or a Main() class. A singleton would be perfect to avoid
// multiple instances. For simplicity we use only a global variable
// here.
UnitTestsConf conf;

// Tree: Constructor tests
BOOST_AUTO_TEST_CASE(test_Tree_Constructors)
{
        // Build temp folder path
        std::string tmpFolderPath;
#ifdef WIN32
        char path[MAX_PATH];
        ::GetTempPath(MAX_PATH, path);
        tmpFolderPath = path;
#else
        tmpFolderPath = "/tmp/";
#endif

        // Prepare
        std::string fileName(tmpFolderPath + "__xyz__ui-gxmlcpp_XML-unit-test.xml");
        {
                std::ofstream file(fileName.c_str());
                file << "<root/>";
        }
        std::stringstream stringStream("<root/>");

        // Constructors
        Tree buffer((char *) "<root/>garbage", 7);
        Tree cstr((char *) "<root/>");
        Tree str(std::string("<root/>"));
        Tree sstream(stringStream);
        Tree file(Tree::File_, fileName);
        Tree tree(file);

        // = + == oparators
        tree = file;
        BOOST_CHECK(tree == file);

        // Tear down (this may not work on non-POSIX environments)
        ::unlink(fileName.c_str());
}

// Tree: Build trees from scratch
BOOST_AUTO_TEST_CASE(test_Tree_Build)
{
        std::string goal(
                "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
                "<root>"
                "<tag attribute=\"aval\">tval</tag>"
                "<after>afterVal</after>"
                "<after>foo</after>"
                "</root>\n");

        UI::GXML::Tree tree("<root/>");
        UI::GXML::Tree::Node root(tree.getRootNode());
        UI::GXML::Tree::Node tag(root.addChild("tag", "tval"));
        tag.setAttribute("attribute", "aval");
        UI::GXML::Tree::Node after(tag.addSiblingAfter("after", "afterVal"));
        UI::GXML::Tree::Node foo(after.addSiblingAfter(after));
        foo.setContent("foo");

        BOOST_CHECK(tree.dump() == goal);
}


// Tree: Read content of nodes
BOOST_AUTO_TEST_CASE(test_Tree_Node_Read)
{
        // Run this twice, once with fixed and once with multi contexts
        for (int c(0); c < 2; ++c)
        {
                std::string xml(
                        "<root>"
                        " <tag attr='attrcontent'>tagcontent</tag>"
                        "</root>");
                Tree tree(xml);
                tree.setContext(c == 0);
                {
                        // DOCUMENT NODE
                        Tree::Node n(tree.getNode("/"));
                        BOOST_CHECK(n.getType() == XML_DOCUMENT_NODE);
                        BOOST_CHECK(n.getName() == "");
                        BOOST_CHECK(n.getContent() == "");
                        // Tree's simplification
                        BOOST_CHECK(tree.getContent("/") == "");
                }
                {
                        // ELEMENT NODE
                        Tree::Node n(tree.getNode("/root/tag"));
                        BOOST_CHECK(n.getType() == XML_ELEMENT_NODE);
                        BOOST_CHECK(n.getName() == "tag");
                        BOOST_CHECK(n.getContent() == "tagcontent");
                        BOOST_CHECK(n.getAttribute("attr") == "attrcontent");
                        // Tree's simplification
                        BOOST_CHECK(tree.getContent("/root/tag") == "tagcontent");
                        BOOST_CHECK(tree.getContent("/root/tag/@attr") == "attrcontent");
                }
                {
                        // ATTRIBUTE NODE
                        Tree::Node n(tree.getNode("/root/tag/@attr"));
                        BOOST_CHECK(n.getType() == XML_ATTRIBUTE_NODE);
                        BOOST_CHECK(n.getName() == "attr");
                        BOOST_CHECK(n.getContent() == "attrcontent");
                        // Tree's simplification
                        BOOST_CHECK(tree.getContent("/root/tag/@attr") == "attrcontent");
                }
        }
}

// Tree: Read content from multple nodes (NodeSet).
BOOST_AUTO_TEST_CASE(test_Tree_NodeSet_Read)
{
        // Run this twice, once with fixed and once with multi contexts
        for (int c(0); c < 2; ++c)
        {
                std::string xml(
                        "<root>"
                        " <tag1 attr='attrcontent1'>tagcontent1</tag1>"
                        " <tag2 attr='attrcontent2'>tagcontent2</tag2>"
                        " <tag3 attr='attrcontent3'>tagcontent3</tag3>"
                        "</root>");
                Tree tree(xml);
                tree.setContext(c == 0);

                {
                        BOOST_CHECK(tree.getNodeSet("/*").size() == 1);
                        BOOST_CHECK(tree.getNodeSet("/root/*").size() == 3);
                        BOOST_CHECK(tree.getNodeSet("/root/tag1").size() == 1);
                }

                {
                        Tree::NodeSet ns(tree.getNodeSet("/root/*"));
                        std::string cumContent("");
                        std::string cumAttr("");
                        for (Tree::NodeSet::const_iterator i(ns.begin()); i != ns.end(); ++i)
                        {
                                cumContent += (*i).getContent();
                                cumAttr += (*i).getAttribute("attr");
                        }
                        BOOST_CHECK(cumContent == "tagcontent1tagcontent2tagcontent3");
                        BOOST_CHECK(cumAttr == "attrcontent1attrcontent2attrcontent3");
                }
        }
}

// Tree: Add nodes+attributes and change contents
BOOST_AUTO_TEST_CASE(test_Tree_Node_Write)
{
        // Run this twice, once with fixed and once with multi contexts
        for (int c(0); c < 2; ++c)
        {
                std::string xml("<root/>");
                Tree tree(xml);
                tree.setContext(c == 0);
                {
                        // Add a child element node
                        tree.addChild("/root", "tag", "tagcontent");
                        Tree::Node n1(tree.getNode("/root/tag"));
                        BOOST_CHECK(n1.getContent() == "tagcontent");
                        BOOST_CHECK(n1.getName() == "tag");

                        // Add an attribute
                        tree.setAttribute("/root/tag", "attr", "attrcontent");
                        BOOST_CHECK(tree.getContent("/root/tag/@attr") == "attrcontent");
                        BOOST_CHECK(tree.getAttribute("/root/tag", "attr") == "attrcontent");

                        // Rename an element node
                        tree.setName("/root/tag", "tux");
                        BOOST_CHECK(tree.getContent("/root/tux") == "tagcontent");

                        // Change content of a node
                        tree.setContent("/root/tux", "tuxcontent");
                        BOOST_CHECK(tree.getContent("/root/tux") == "tuxcontent");

                        // Change content of an attribute
                        tree.setAttribute("/root/tux", "attr", "tuxcontent");
                        BOOST_CHECK(tree.getContent("/root/tux/@attr") == "tuxcontent");
                        BOOST_CHECK(tree.getAttribute("/root/tux", "attr") == "tuxcontent");
                }
        }
}

// Tree::Dump (serializing)
BOOST_AUTO_TEST_CASE(test_Tree_Dump)
{
        std::string xmlUTF8(
                "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
                "<root>"
                "<tag attr=\"attrcontent1\">tagcontent1</tag>"
                "<umlaute attr=\"öäü\">öäü</umlaute>"
                "</root>\n");
        std::string xmlLatin(
                "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n"
                "<root>"
                "<tag attr=\"attrcontent1\">tagcontent1</tag>"
                "<umlaute attr=\"öäü">öäü
                "</root>\n");
        {
                // XML(UTF-8) -> Tree(UTF-8) -> XML(UTF-8)
                Tree t(xmlUTF8);
                BOOST_CHECK(Tree::Dump(t, false, "UTF-8").get() == xmlUTF8);
        }
        {
                // XML(UTF-8) -> Tree(UTF-8) -> XML(ISO-8859-1)
                Tree t(xmlUTF8);
                BOOST_CHECK(Tree::Dump(t, false, "ISO-8859-1").get() == xmlLatin);
        }
        {
                // XML(ISO-8859-1) -> Tree(UTF-8) -> XML(UTF-8)
                Tree t(xmlLatin);
                BOOST_CHECK(Tree::Dump(t, false, "UTF-8").get() == xmlUTF8);
        }
}

// Tree::Node::Dump (serializing)
BOOST_AUTO_TEST_CASE(Tree_Node_Dump)
{
        std::string header("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
        std::string tag1("<tag attr=\"attr1\">pos1</tag>");
        std::string tag2("<tag attr=\"attr2\">pos2</tag>");
        std::string tag3("<tag>öäü</tag>");

        std::string xml("<root>" + tag1 + tag2 + tag3 + "</root>");
        std::string xmlDoc(header + xml);
        {
                Tree const tree(xmlDoc);
                {
                        // Dump root node
                        Tree::Node n(tree.getNode("/root"));
                        BOOST_CHECK(n.dump() == xml);
                }

                {
                        // Dump tag no 2
                        Tree::Node n(tree.getNode("/root/tag[position()=2]"));
                        BOOST_CHECK(n.dump() == tag2);
                }

                {
                        // Dump all tags below /root
                        Tree::NodeSet ns(tree.getNodeSet("/root/*"));
                        BOOST_CHECK(ns.dump() == tag1 + tag2 + tag3);
                }

                {
                        // Dump attribute node 1
                        Tree::Node n(tree.getNode("/root/tag[position()=1]/@attr"));
                        BOOST_CHECK(n.dump() == " attr=\"attr1\"");
                }

                {
                        // Dump all attribute nodes
                        Tree::NodeSet ns(tree.getNodeSet("/root/tag/@attr"));
                        BOOST_CHECK(ns.dump() == " attr=\"attr1\" attr=\"attr2\"");
                }

                {
                        // Dump tag no 3
                        Tree::Node n(tree.getNode("/root/tag[position()=3]"));
                        BOOST_CHECK(n.dump() == tag3);
                }
        }
}

BOOST_AUTO_TEST_CASE(test_xsl_translation)
{
        std::string xmlUTF8NoHeader(
                "<root>"
                 "<tag attr=\"attrcontent\">tagcontent</tag>"
                 "<umlaute attr=\"öäü\">öäü</umlaute>"
                "</root>\n");

        std::string xmlUTF8(
                "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
                + xmlUTF8NoHeader);

        std::string xmlLatin(
                "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n"
                "<root>"
                 "<tag attr=\"attrcontent\">tagcontent</tag>"
                 "<umlaute attr=\"öäü">öäü
                "</root>\n");

        std::string xslIDSnippet(
                "<xsl:template match=\"@*|node()\">"
                " <xsl:copy>"
                "  <xsl:apply-templates select=\"@*|node()\"/>"
                " </xsl:copy>"
                "</xsl:template>");

        std::string xsl_to_XML_UTF8(
                "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
                ""
                "<xsl:stylesheet version=\"1.0\" xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\">"
                ""
                "<xsl:output method=\"xml\" encoding=\"UTF-8\" />"
                ""
                + xslIDSnippet +
                ""
                "</xsl:stylesheet>");

        std::string xsl_to_XML_LATIN(
                "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
                ""
                "<xsl:stylesheet version=\"1.0\" xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\">"
                ""
                "<xsl:output method=\"xml\" encoding=\"ISO-8859-1\" />"
                ""
                + xslIDSnippet +
                ""
                "</xsl:stylesheet>");

        std::string xsl_to_HTML_UTF8(
                "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
                ""
                "<xsl:stylesheet version=\"1.0\" xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\">"
                ""
                "<xsl:output method=\"html\" encoding=\"UTF-8\" />"
                ""
                + xslIDSnippet +
                ""
                "</xsl:stylesheet>");

        conf.setKeepBlanks(true);
        {
                // XML: UTF-8 --> UTF-8
                Tree xmlTree(xmlUTF8);
                XSLTree xslTree(xsl_to_XML_UTF8);
                XSLTransTree xslTransTree(xslTree, xmlTree);
                XSLTransTree::Dump dump(xslTransTree);

                BOOST_CHECK(dump.getEncoding() == "UTF-8");
                BOOST_CHECK(dump.get() == xmlUTF8);
        }
        {
                // XML: UTF-8 -> ISO-8859-1
                Tree xmlTree(xmlUTF8);
                XSLTree xslTree(xsl_to_XML_LATIN);
                XSLTransTree xslTransTree(xslTree, xmlTree);
                XSLTransTree::Dump dump(xslTransTree);

                BOOST_CHECK(dump.getEncoding() == "ISO-8859-1");
                BOOST_CHECK(dump.get() == xmlLatin);
        }
        {
                // XML: ISO-8859-1 -> UTF-8
                Tree xmlTree(xmlLatin);
                XSLTree xslTree(xsl_to_XML_UTF8);
                XSLTransTree xslTransTree(xslTree, xmlTree);
                XSLTransTree::Dump dump(xslTransTree);

                BOOST_CHECK(dump.getEncoding() == "UTF-8");
                BOOST_CHECK(dump.get() == xmlUTF8);
        }
        {
                // HTML: UTF-8 -> UTF-8
                Tree xmlTree(xmlLatin);
                XSLTree xslTree(xsl_to_HTML_UTF8);
                XSLTransTree xslTransTree(xslTree, xmlTree);
                XSLTransTree::Dump dump(xslTransTree);

                BOOST_CHECK(dump.getEncoding() == "UTF-8");
                BOOST_CHECK(dump.get() == xmlUTF8NoHeader);
        }
        conf.setKeepBlanks(false);
}

BOOST_AUTO_TEST_CASE(test_xmlschema_validation)
{
        std::string schema(
                "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
                ""
                "<xsd:schema xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\">"
                "       <xsd:element name=\"root\" type=\"xsd:string\"/>"
                "</xsd:schema>");

        std::string validXml(
                "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n"
                "<root>text</root>\n");

        std::string invalidXml(
                "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n"
                "<root><subtag/></root>\n");

        SchemaTree schemaTree(schema);
        Tree validTree(validXml);
        Tree invalidTree(invalidXml);

        BOOST_CHECK(schemaTree.isValid(validTree));

        conf.setCustomLoggingEnable(false);
        BOOST_CHECK(!schemaTree.isValid(invalidTree));
        conf.setCustomLoggingEnable(true);

        // libxml2 <= 2.6.11 had bug: Once a non-validating XML was checked
        // against the Schema, all following checks would not validate.
        // So, we check this here.
        BOOST_CHECK(schemaTree.isValid(validTree));
}

BOOST_AUTO_TEST_CASE(test_relaxng_validation)
{
        std::string relaxNG(
                "<element name='root' xmlns='http://relaxng.org/ns/structure/1.0'>"
                "  <zeroOrMore>"
                "    <element name='item'>"
                "      <element name='id'>"
                "        <text/>"
                "      </element>"
                "    </element>"
                "  </zeroOrMore>"
                "</element>");

        std::string validXml(
                "<?xml version='1.0' encoding='UTF-8'?>\n"
                "<root>"
                "  <item>"
                "    <id>1234</id>"
                "  </item>"
                "  <item>"
                "    <id>5678</id>"
                "  </item>"
                "</root>");

        std::string invalidXml(
                "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n"
                "<root>"
                "  <item>"
                "    <ERROR>error</ERROR>"
                "  </item>"
                "</root>");

        RelaxNGTree relaxNGTree(relaxNG);
        Tree validTree(validXml);
        Tree invalidTree(invalidXml);

        BOOST_CHECK(relaxNGTree.isValid(validTree));

        conf.setCustomLoggingEnable(false);
        BOOST_CHECK(!relaxNGTree.isValid(invalidTree));
        conf.setCustomLoggingEnable(true);
}

BOOST_AUTO_TEST_CASE(test_internal_encoding)
{
        std::string none(
                "<?xml version='1.0'?>"
                "<root/>");
        std::string utf8(
                "<?xml version='1.0' encoding='UTF-8'?>"
                "<root/>");
        std::string iso(
                "<?xml version='1.0' encoding='ISO-8859-1'?>"
                "<root/>");

        Tree noneTree(none);
        Tree utf8Tree(utf8);
        Tree isoTree(iso);

        BOOST_CHECK(noneTree.getOrigEncoding() == "");
        BOOST_CHECK(utf8Tree.getOrigEncoding() == "UTF-8");
        BOOST_CHECK(isoTree.getOrigEncoding() == "ISO-8859-1");
}

BOOST_AUTO_TEST_CASE(test_context)
{
        Tree tree(
                "<?xml version='1.0'?>"
                "<root>"
                "<sub name='x'>x</sub>"
                "<sub name='X'>X</sub>"
                "</root>");

        // xpath on tree
        Tree::Node node(tree.getNode("/root"));
        BOOST_CHECK(node.getName() == "root");

        // xpath on node (relative)
        Tree::Node sub1(node.getNode("sub[@name='x']"));
        BOOST_CHECK(sub1.getName() == "sub" && sub1.getAttribute("name") == "x" && sub1.getContent() == "x");

        Tree::Node sub2(node.getNode("sub[@name='X']"));
        BOOST_CHECK(sub2.getName() == "sub" && sub2.getAttribute("name") == "X" && sub2.getContent() == "X");
}

}}