add directory for C++ tests, and first C++ test against the font engine functions

SConstruct

@@ -1227,3 +1227,6 @@ if not HELP_REQUESTED:
     
     # Configure fonts and if requested install the bundled DejaVu fonts
     SConscript('fonts/SConscript')
+    
+    # build C++ tests
+    SConscript('tests/cpp_tests/SConscript')

tests/cpp_tests/SConscript

@@ -0,0 +1,20 @@
+import os
+import glob
+
+Import ('env')
+
+headers = env['CPPPATH'] 
+
+boost_filesystem = 'boost_filesystem%s' % env['BOOST_APPEND']
+boost_system = 'boost_system%s' % env['BOOST_APPEND']
+
+libraries =  [boost_system, boost_filesystem, 'mapnik2']
+
+if env['PLATFORM'] == 'Darwin':
+    libraries.append(env['ICU_LIB_NAME'])
+
+if env['HAS_BOOST_SYSTEM']:
+    libraries.append(boost_system)
+
+for cpp_test in glob.glob('*_test.cpp'):
+    env.Program(cpp_test.replace('.cpp',''), [cpp_test], CPPPATH=headers, LIBS=libraries)

tests/cpp_tests/font_registration_test.cpp

@@ -0,0 +1,77 @@
+#include <boost/config/warning_disable.hpp>
+
+#include <boost/filesystem/convenience.hpp>
+namespace fs = boost::filesystem;
+using fs::path;
+namespace sys = boost::system;
+
+#include <boost/detail/lightweight_test.hpp>
+#include <boost/bind.hpp>
+#include <fstream>
+#include <iostream>
+#include <mapnik/font_engine_freetype.hpp>
+
+
+//  --------------------------------------------------------------------------//
+
+int main( int, char*[] )
+{
+
+
+//  font registration() tests  ----------------------------------------------//
+
+  std::string fontdir("fonts/");
+  
+  BOOST_TEST( fs::exists( fontdir ) );
+  BOOST_TEST( fs::is_directory( fontdir ) );
+
+  std::vector<std::string> face_names;
+
+  std::string foo("foo");
+
+  // fake directories
+  BOOST_TEST( !mapnik::freetype_engine::register_fonts(foo , true ) );
+  face_names = mapnik::freetype_engine::face_names();
+  BOOST_TEST( face_names.size() == 0 );
+  BOOST_TEST( !mapnik::freetype_engine::register_fonts(foo) );
+  face_names = mapnik::freetype_engine::face_names();
+  BOOST_TEST( face_names.size() == 0 );
+
+  // directories without fonts
+  std::string src("src");
+  // a legitimate directory will return true even it is does not 
+  // successfully register a font...
+  BOOST_TEST( mapnik::freetype_engine::register_fonts(src , true ) );
+  face_names = mapnik::freetype_engine::face_names();
+  BOOST_TEST( face_names.size() == 0 );
+  std::clog << "number of registered fonts: " << face_names.size() << std::endl;
+
+  // register unifont
+  BOOST_TEST( mapnik::freetype_engine::register_fonts(fontdir) );
+  face_names = mapnik::freetype_engine::face_names();
+  std::clog << "number of registered fonts: " << face_names.size() << std::endl;
+  BOOST_TEST( face_names.size() > 0 );
+  BOOST_TEST( face_names.size() == 1 );
+
+  // re-register unifont, should not have any affect
+  BOOST_TEST( mapnik::freetype_engine::register_fonts(fontdir, false) );
+  face_names = mapnik::freetype_engine::face_names();
+  std::clog << "number of registered fonts: " << face_names.size() << std::endl;
+  BOOST_TEST( face_names.size() == 1 );
+
+  // register a single dejavu font
+  std::string dejavu_bold_oblique("tests/data/fonts/DejaVuSansMono-BoldOblique.ttf");
+  BOOST_TEST( mapnik::freetype_engine::register_font(dejavu_bold_oblique) );
+  face_names = mapnik::freetype_engine::face_names();
+  std::clog << "number of registered fonts: " << face_names.size() << std::endl;
+  BOOST_TEST( face_names.size() == 2 );
+
+
+  // recurse to find all dejavu fonts
+  BOOST_TEST( mapnik::freetype_engine::register_fonts(fontdir, true) );
+  face_names = mapnik::freetype_engine::face_names();
+  std::clog << "number of registered fonts: " << face_names.size() << std::endl;
+  BOOST_TEST( face_names.size() == 21 );
+
+  return ::boost::report_errors();
+}