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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include <cm_utf8.h>
#include <stdio.h>
typedef char test_utf8_char[5];
static void test_utf8_char_print(test_utf8_char const c)
{
unsigned char const* d = reinterpret_cast<unsigned char const*>(c);
printf("[0x%02X,0x%02X,0x%02X,0x%02X]", static_cast<int>(d[0]),
static_cast<int>(d[1]), static_cast<int>(d[2]),
static_cast<int>(d[3]));
}
struct test_utf8_entry
{
int n;
test_utf8_char str;
unsigned int chr;
};
static test_utf8_entry const good_entry[] = {
{ 1, "\x20\x00\x00\x00", 0x0020 }, /* Space. */
{ 2, "\xC2\xA9\x00\x00", 0x00A9 }, /* Copyright. */
{ 3, "\xE2\x80\x98\x00", 0x2018 }, /* Open-single-quote. */
{ 3, "\xE2\x80\x99\x00", 0x2019 }, /* Close-single-quote. */
{ 4, "\xF0\xA3\x8E\xB4", 0x233B4 }, /* Example from RFC 3629. */
{ 0, { 0, 0, 0, 0, 0 }, 0 }
};
static test_utf8_char const bad_chars[] = {
"\x80\x00\x00\x00", "\xC0\x00\x00\x00", "\xE0\x00\x00\x00",
"\xE0\x80\x80\x00", "\xF0\x80\x80\x80", { 0, 0, 0, 0, 0 }
};
static void report_good(bool passed, test_utf8_char const c)
{
printf("%s: decoding good ", passed ? "pass" : "FAIL");
test_utf8_char_print(c);
printf(" (%s) ", c);
}
static void report_bad(bool passed, test_utf8_char const c)
{
printf("%s: decoding bad ", passed ? "pass" : "FAIL");
test_utf8_char_print(c);
printf(" ");
}
static bool decode_good(test_utf8_entry const entry)
{
unsigned int uc;
if (const char* e =
cm_utf8_decode_character(entry.str, entry.str + 4, &uc)) {
int used = static_cast<int>(e - entry.str);
if (uc != entry.chr) {
report_good(false, entry.str);
printf("expected 0x%04X, got 0x%04X\n", entry.chr, uc);
return false;
}
if (used != entry.n) {
report_good(false, entry.str);
printf("had %d bytes, used %d\n", entry.n, used);
return false;
}
report_good(true, entry.str);
printf("got 0x%04X\n", uc);
return true;
}
report_good(false, entry.str);
printf("failed\n");
return false;
}
static bool decode_bad(test_utf8_char const s)
{
unsigned int uc = 0xFFFFu;
const char* e = cm_utf8_decode_character(s, s + 4, &uc);
if (e) {
report_bad(false, s);
printf("expected failure, got 0x%04X\n", uc);
return false;
}
report_bad(true, s);
printf("failed as expected\n");
return true;
}
int testUTF8(int /*unused*/, char* /*unused*/ [])
{
int result = 0;
for (test_utf8_entry const* e = good_entry; e->n; ++e) {
if (!decode_good(*e)) {
result = 1;
}
}
for (test_utf8_char const* c = bad_chars; (*c)[0]; ++c) {
if (!decode_bad(*c)) {
result = 1;
}
}
return result;
}
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