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C++ class for reading and writing XML structures. No need for a C++ code parser or special pre compiler. Specify a schema entirly in native C++. The schema is verified when XML is read and exceptions are thrown when the XML to be parse is invalid.
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libxml-cxx/test/serialization_test.cxx

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/*! @file
@id $Id$
*/
// 1 2 3 4 5 6 7 8
// 45678901234567890123456789012345678901234567890123456789012345678901234567890
#include <xml-cxx/xml.hxx>
#include <cppunit/TestFixture.h>
#include <cppunit/ui/text/TestRunner.h>
#include <cppunit/extensions/HelperMacros.h>
#include <cppunit/extensions/TestFactoryRegistry.h>
#include <cppunit/XmlOutputter.h>
#include <fstream>
class A: public xml::Serialize {
public:
int _anInteger;
bool _aBool;
double _aDouble;
std::string _aString;
std::string _anotherString;
unsigned long _aLong;
protected:
void initXmlMembers() {
className("A");
persist(_anInteger, "anInteger");
persist(_aBool, "aBool");
persist(_aDouble, "aDouble");
persist(_aString, "aString");
persist(_anotherString, "anotherString");
persist(_aLong, "aLong");
}
};
class B: public xml::Serialize {
public:
long aLong;
char aChar;
protected:
void initXmlMembers() {
className("B");
persist(aLong, "aLong");
persist(aChar, "aChar");
}
};
class B2: public B {
public:
float aFloat;
short aShort;
protected:
void initXmlMembers() {
B::initXmlMembers();
className("B2");
persist(aFloat, "float");
persist(aShort, "short");
}
};
// Complex Example: Class A2 is a class that inherits another class
// (A) and contains a class (B2) that inherits another class (B)
class A2: public A {
public:
std::string aText;
B2 childOfB;
protected:
void initXmlMembers() {
A::initXmlMembers();
className("A2");
persist(aText, "aText");
persist(childOfB, "childOfB");
}
};
class C: public xml::Serialize {
public:
A2 a2;
B2 b2;
protected:
void initXmlMembers() {
className("C")
.persist(a2, "a2")
.persist(b2, "b2");
}
};
class SerializationTest: public CppUnit::TestFixture {
public:
std::string _file;
A _a;
void setUp() {
_a._anInteger = 15;
_a._aBool = true;
_a._aDouble = 123.456;
_a._aString = "Hello World";
_a._anotherString = "This is another Text";
_a._aLong = 4123674622ul;
try {
std::stringstream ss;
_a.saveXml(ss);
_file = ss.str();
} catch (...) {}
}
void memberDeclaration() {
// This is more a compile time test than a runtime test.
A a;
a._anInteger = 15;
CPPUNIT_ASSERT_EQUAL(15, a._anInteger);
a._aString = "Hello World";
CPPUNIT_ASSERT_EQUAL(std::string("Hello World"), a._aString);
std::stringstream ss;
}
void store() {
{
std::stringstream ss;
CPPUNIT_ASSERT_NO_THROW(_a.saveXml(ss));
CPPUNIT_ASSERT_EQUAL(std::string("<A>\n"
"\t<anInteger>15</anInteger>\n"
"\t<aBool>true</aBool>\n"
"\t<aDouble>123.456</aDouble>\n"
"\t<aString>Hello World</aString>\n"
"\t<anotherString>This is"
" another Text</anotherString>\n"
"\t<aLong>4123674622</aLong>\n"
"</A>"),
ss.str());
} { // again - initialisation of A should be done only once
std::stringstream ss;
CPPUNIT_ASSERT_NO_THROW(_a.saveXml(ss));
CPPUNIT_ASSERT_EQUAL(_file, ss.str());
}
}
void restore() {
A a;
std::stringstream ss(_file);
CPPUNIT_ASSERT(_file.size()>0);
CPPUNIT_ASSERT_EQUAL(_file, ss.str());
CPPUNIT_ASSERT_NO_THROW(a.loadXml(ss));
CPPUNIT_ASSERT_EQUAL(15, a._anInteger);
CPPUNIT_ASSERT_EQUAL(true, a._aBool);
CPPUNIT_ASSERT_EQUAL(123.456, a._aDouble);
CPPUNIT_ASSERT_EQUAL(std::string("Hello World"), a._aString);
CPPUNIT_ASSERT_EQUAL(std::string("This is another Text"),
a._anotherString);
CPPUNIT_ASSERT_EQUAL(4123674622ul, a._aLong);
}
void complexLoad() {
std::stringstream ss("<A2>\n"
" <anInteger>-1234</anInteger>\n"
" <aBool>true</aBool>\n"
" <aDouble>3.141</aDouble>\n"
" <aString>This is A inside of A2</aString>\n"
" <anotherString>Another A-String</anotherString>\n"
" <aLong>1234567890</aLong>\n"
" <aText>Text from A2</aText>\n"
" <childOfB>\n"
" <aLong>987654321</aLong>\n"
" <aChar>Q</aChar>\n"
" <float>2.5</float>\n"
" <short>-127</short>\n"
" </childOfB>\n"
"</A2>");
A2 a2;
CPPUNIT_ASSERT_EQUAL(std::string("<A2>\n"
"\t<anInteger/>\n"
"\t<aBool/>\n"
"\t<aDouble/>\n"
"\t<aString/>\n"
"\t<anotherString/>\n"
"\t<aLong/>\n"
"\t<aText/>\n"
"\t<childOfB>\n"
"\t\t<aLong/>\n"
"\t\t<aChar/>\n"
"\t\t<float/>\n"
"\t\t<short/>\n"
"\t</childOfB>\n"
"</A2>"), a2.schema());
CPPUNIT_ASSERT_NO_THROW(a2.loadXml(ss));
CPPUNIT_ASSERT_EQUAL(-1234, a2._anInteger);
CPPUNIT_ASSERT_EQUAL(true, a2._aBool);
CPPUNIT_ASSERT_EQUAL(3.141, a2._aDouble);
CPPUNIT_ASSERT_EQUAL(std::string("This is A inside of A2"), a2._aString);
CPPUNIT_ASSERT_EQUAL(std::string("Another A-String"), a2._anotherString);
CPPUNIT_ASSERT_EQUAL(1234567890ul, a2._aLong);
CPPUNIT_ASSERT_EQUAL(std::string("Text from A2"), a2.aText);
CPPUNIT_ASSERT_EQUAL(987654321l, a2.childOfB.aLong);
CPPUNIT_ASSERT_EQUAL('Q', a2.childOfB.aChar);
CPPUNIT_ASSERT_EQUAL(2.5f, a2.childOfB.aFloat);
CPPUNIT_ASSERT_EQUAL((short)-127, a2.childOfB.aShort);
}
void complexSave() {
A2 a2;
a2._anInteger = -1234;
a2._aBool = true;
a2._aDouble = 3.141;
a2._aString = std::string("This is A inside of A2");
a2._anotherString = std::string("Another A-String");
a2._aLong = 1234567890ul;
a2.aText = std::string("Text from A2");
a2.childOfB.aLong = 987654321l;
a2.childOfB.aChar = 'Q';
a2.childOfB.aFloat = 2.5f;
a2.childOfB.aShort = (short)-127;
std::stringstream ss;
a2.saveXml(ss);
CPPUNIT_ASSERT_EQUAL
(std::string("<A2>\n"
"\t<anInteger>-1234</anInteger>\n"
"\t<aBool>true</aBool>\n"
"\t<aDouble>3.141</aDouble>\n"
"\t<aString>This is A inside of A2</aString>\n"
"\t<anotherString>Another A-String</anotherString>\n"
"\t<aLong>1234567890</aLong>\n"
"\t<aText>Text from A2</aText>\n"
"\t<childOfB>\n"
"\t\t<aLong>987654321</aLong>\n"
"\t\t<aChar>Q</aChar>\n"
"\t\t<float>2.5</float>\n"
"\t\t<short>-127</short>\n"
"\t</childOfB>\n"
"</A2>"), ss.str());
}
void moreComplexLoad() {
std::stringstream ss
("<C>\n"
" <a2>\n"
" <anInteger>-1234</anInteger>\n"
" <aBool>true</aBool>\n"
" <aDouble>3.141</aDouble>\n"
" <aString>This is A inside of A2</aString>\n"
" <anotherString>Another A-String</anotherString>\n"
" <aLong>1234567890</aLong>\n"
" <aText>Text from A2</aText>\n"
" <childOfB>\n"
" <aLong>987654321</aLong>\n"
" <aChar>Q</aChar>\n"
" <float>2.5</float>\n"
" <short>-127</short>\n"
" </childOfB>\n"
" </a2>\n"
" <b2>\n"
" <aLong>212121</aLong>\n"
" <aChar>W</aChar>\n"
" <float>2.25</float>\n"
" <short>124</short>\n"
" </b2>\n"
"</C>");
C c;
CPPUNIT_ASSERT_EQUAL(std::string("<C>\n"
"\t<a2>\n"
"\t\t<anInteger/>\n"
"\t\t<aBool/>\n"
"\t\t<aDouble/>\n"
"\t\t<aString/>\n"
"\t\t<anotherString/>\n"
"\t\t<aLong/>\n"
"\t\t<aText/>\n"
"\t\t<childOfB>\n"
"\t\t\t<aLong/>\n"
"\t\t\t<aChar/>\n"
"\t\t\t<float/>\n"
"\t\t\t<short/>\n"
"\t\t</childOfB>\n"
"\t</a2>\n"
"\t<b2>\n"
"\t\t<aLong/>\n"
"\t\t<aChar/>\n"
"\t\t<float/>\n"
"\t\t<short/>\n"
"\t</b2>\n"
"</C>"), c.schema());
CPPUNIT_ASSERT_NO_THROW(c.loadXml(ss));
CPPUNIT_ASSERT_EQUAL(-1234, c.a2._anInteger);
CPPUNIT_ASSERT_EQUAL(true, c.a2._aBool);
CPPUNIT_ASSERT_EQUAL(3.141, c.a2._aDouble);
CPPUNIT_ASSERT_EQUAL(std::string("This is A inside of A2"),
c.a2._aString);
CPPUNIT_ASSERT_EQUAL(std::string("Another A-String"),
c.a2._anotherString);
CPPUNIT_ASSERT_EQUAL(1234567890ul, c.a2._aLong);
CPPUNIT_ASSERT_EQUAL(std::string("Text from A2"), c.a2.aText);
CPPUNIT_ASSERT_EQUAL(987654321l, c.a2.childOfB.aLong);
CPPUNIT_ASSERT_EQUAL('Q', c.a2.childOfB.aChar);
CPPUNIT_ASSERT_EQUAL(2.5f, c.a2.childOfB.aFloat);
CPPUNIT_ASSERT_EQUAL((short)-127, c.a2.childOfB.aShort);
CPPUNIT_ASSERT_EQUAL(212121l, c.b2.aLong);
CPPUNIT_ASSERT_EQUAL('W', c.b2.aChar);
CPPUNIT_ASSERT_EQUAL(2.25f, c.b2.aFloat);
CPPUNIT_ASSERT_EQUAL((short)124, c.b2.aShort);
}
void moreComplexSave() {
C c;
c.a2._anInteger = -1234;
c.a2._aBool = true;
c.a2._aDouble = 3.141;
c.a2._aString = std::string("This is A inside of A2");
c.a2._anotherString = std::string("Another A-String");
c.a2._aLong = 1234567890ul;
c.a2.aText = std::string("Text from A2");
c.a2.childOfB.aLong = 987654321l;
c.a2.childOfB.aChar = 'Q';
c.a2.childOfB.aFloat = 2.5f;
c.a2.childOfB.aShort = (short)-127;
c.b2.aLong = 212121l;
c.b2.aChar = 'W';
c.b2.aFloat = 2.25f;
c.b2.aShort = (short)124;
std::stringstream ss;
c.saveXml(ss);
CPPUNIT_ASSERT_EQUAL
(std::string("<C>\n"
"\t<a2>\n"
"\t\t<anInteger>-1234</anInteger>\n"
"\t\t<aBool>true</aBool>\n"
"\t\t<aDouble>3.141</aDouble>\n"
"\t\t<aString>This is A inside of A2</aString>\n"
"\t\t<anotherString>Another A-String</anotherString>\n"
"\t\t<aLong>1234567890</aLong>\n"
"\t\t<aText>Text from A2</aText>\n"
"\t\t<childOfB>\n"
"\t\t\t<aLong>987654321</aLong>\n"
"\t\t\t<aChar>Q</aChar>\n"
"\t\t\t<float>2.5</float>\n"
"\t\t\t<short>-127</short>\n"
"\t\t</childOfB>\n"
"\t</a2>\n"
"\t<b2>\n"
"\t\t<aLong>212121</aLong>\n"
"\t\t<aChar>W</aChar>\n"
"\t\t<float>2.25</float>\n"
"\t\t<short>124</short>\n"
"\t</b2>\n"
"</C>"), ss.str());
}
CPPUNIT_TEST_SUITE(SerializationTest);
CPPUNIT_TEST(memberDeclaration);
CPPUNIT_TEST(store);
CPPUNIT_TEST(restore);
CPPUNIT_TEST(complexLoad);
CPPUNIT_TEST(complexSave);
CPPUNIT_TEST(moreComplexLoad);
CPPUNIT_TEST(moreComplexSave);
CPPUNIT_TEST_SUITE_END();
};
CPPUNIT_TEST_SUITE_REGISTRATION(SerializationTest);
int main(int argc, char** argv) try {
std::ofstream ofs((*argv+std::string(".xml")).c_str());
CppUnit::TextUi::TestRunner runner;
runner.setOutputter(new CppUnit::XmlOutputter(&runner.result(), ofs));
runner.addTest(CppUnit::TestFactoryRegistry::getRegistry().makeTest());
return runner.run() ? 0 : 1;
} catch (std::exception& e) {
std::cerr<<"***Exception: "<<e.what()<<std::endl;
return 1;
}