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/*******************************************************************\
Module: Unicode conversion tests.
Author: Vojtech Forejt, forejtv@diffblue.com
\*******************************************************************/
#include <testing-utils/use_catch.h>
#include <string>
#include <codecvt>
#include <locale>
#include <util/unicode.h>
// This unit test compares our implementation with codecvt implementation,
// checking bit-by-bit equivalence of results.
static bool paranoid_wstr_equals(const std::wstring &a, const std::wstring &b)
{
if(a.size() != b.size())
return false;
const char
*pa=reinterpret_cast<const char *>(&a[0]),
*pb=reinterpret_cast<const char *>(&b[0]);
for(std::size_t i=0; i<a.size() * sizeof(a.front()); ++i)
{
if(pa[i] != pb[i])
return false;
}
return true;
}
// helper print function, can be called for debugging problem
#if 0
#include <iostream>
static void wstr_print(const std::wstring &a, const std::wstring &b)
{
int endi=(a.size()>b.size())?a.size():b.size();
const unsigned char
*pa=reinterpret_cast<const unsigned char *>(&a[0]),
*pb=reinterpret_cast<const unsigned char *>(&b[0]);
for(std::size_t i=0; i<endi * sizeof(a.front()); ++i)
{
std::cout << ((a.size()<endi)?"x":std::to_string(pa[i]))
<< ' '
<< ((b.size()<endi)?"x":std::to_string(pb[i])) << '\n';
}
std::cout << '\n';
}
#endif
static bool compare_utf8_to_utf16(const std::string &in)
{
const std::wstring s1 = utf8_to_utf16_native_endian(in);
typedef std::codecvt_utf8_utf16<wchar_t> codecvt_utf8_utf16t;
std::wstring_convert<codecvt_utf8_utf16t> converter;
std::wstring s2=converter.from_bytes(in);
return paranoid_wstr_equals(s1, s2);
}
TEST_CASE("unicode0", "[core][util][unicode]")
{
const std::string s = u8"abc";
REQUIRE(compare_utf8_to_utf16(s));
}
TEST_CASE("unicode1", "[core][util][unicode]")
{
const std::string s = u8"\u0070\u00DF\u00E0\u00EF\u00F0\u00F7\u00F8";
REQUIRE(compare_utf8_to_utf16(s));
}
TEST_CASE("unicode2", "[core][util][unicode]")
{
const std::string s = u8"$¢€𐍈";
REQUIRE(compare_utf8_to_utf16(s));
}
TEST_CASE("unicode3", "[core][util][unicode]")
{
const std::string s = u8"𐐏𤭢";
REQUIRE(compare_utf8_to_utf16(s));
}
TEST_CASE("unicode4", "[core][util][unicode]")
{
const std::string s = u8"дȚȨɌṡʒʸͼἨѶݔݺ→⅒⅀▤▞╢◍⛳⻥龍ンㄗㄸ";
REQUIRE(compare_utf8_to_utf16(s));
}
TEST_CASE("utf16_native_endian_to_java_string", "[core][util][unicode]")
{
const std::wstring in = L"abc \" ' \\ub374 \\";
REQUIRE(
utf16_native_endian_to_java_string(in) == "abc \\\" \' \\\\ub374 \\\\");
}
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