/*
 * Copyright (C) 2009 Emweb bvba, Kessel-Lo, Belgium.
 *
 * See the LICENSE file for terms of use.
 */
#include <boost/test/unit_test.hpp>

#include <Wt/WString>
#include <Wt/WStringUtil>
#include <iostream>

BOOST_AUTO_TEST_CASE( Utf8_test1 )
{
#ifndef WT_NO_STD_WSTRING
#ifndef WIN32
  std::wstring w = L"This costs 100\x20AC (greek \x0194 special \x103A7)";
  Wt::WString ws = w;
  // std::cerr << ws.toUTF8() << std::endl;
  BOOST_REQUIRE(ws.value() == w);
  BOOST_REQUIRE(ws.toUTF8().length() == w.length() + 2 + 1 + 3);
#else
  std::wstring w = L"This costs 100\x20AC (greek \x0194)";
  Wt::WString ws = w;
  // std::cerr << ws.toUTF8() << std::endl;
  BOOST_REQUIRE(ws.value() == w);
  BOOST_REQUIRE(ws.toUTF8().length() == w.length() + 2 + 1);
#endif
#endif
}

BOOST_AUTO_TEST_CASE( Utf8_test2 )
{
#ifndef WT_NO_STD_WSTRING
  std::wstring w = L"This costs 100\x20AC (greek \x0194)";

  Wt::WString ws = w;
  std::string s = ws.narrow();

  // The following will work only if locale is classic.
  // If locale is UTF8, we have the original back.
  BOOST_REQUIRE(s == "This costs 100? (greek ?)" || s == ws.toUTF8());
#endif
}

BOOST_AUTO_TEST_CASE( Utf8_test3 )
{
  /*
   * This is broken on MacOSX 10.6, std::locale("") throws runtime_exception
   */
#if 0
  std::wstring w = L"\x20AC\x20AC\x20AC\x20AC (greek \x0194)";

  Wt::WString ws = w;

  std::locale l(std::locale("C"), std::locale(""),
		std::locale::collate | std::locale::ctype);

  std::string s = ws.narrow(l);

  BOOST_REQUIRE(s == ws.toUTF8());
#endif
}
 
BOOST_AUTO_TEST_CASE( Utf8_test4 )
{
  std::string u8 = "euro\xe2\x82\xac greek \xc6\x94 special \xf0\x90\x8e\xa7)";
  std::string u8a = "euro\xe2\x82\xac gree";
  std::string u8b = "euro\xe2\x82\xac greek \xc6\x94";
  std::string u8c = "euro\xe2\x82\xac greek \xc6\x94 special \xf0\x90\x8e\xa7";
  std::string u8d = "k \xc6\x94 special \xf0\x90\x8e\xa7)";
  std::string u8e = "special \xf0\x90\x8e\xa7";
  std::string u8f = ")";
  std::string ss;
  // Check if UTF8substr works as advertised
  ss = Wt::UTF8Substr(u8, 0, -1);
  BOOST_REQUIRE(ss == u8);

  ss = Wt::UTF8Substr(u8, 0, 24);
  BOOST_REQUIRE(ss == u8);

  ss = Wt::UTF8Substr(u8, 0, 23);
  BOOST_REQUIRE(ss == u8c);

  ss = Wt::UTF8Substr(u8, 0, 10);
  BOOST_REQUIRE(ss == u8a);

  ss = Wt::UTF8Substr(u8, 0, 13);
  BOOST_REQUIRE(ss == u8b);

  ss = Wt::UTF8Substr(u8, 10, -1);
  BOOST_REQUIRE(ss == u8d);

  ss = Wt::UTF8Substr(u8, 14, 9);
  BOOST_REQUIRE(ss == u8e);

  ss = Wt::UTF8Substr(u8, 23, 9);
  BOOST_REQUIRE(ss == u8f);

}
