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#include "simdutf.h"
#include <array>
#include <vector>
#include <tests/helpers/fixed_string.h>
#include <tests/helpers/random_int.h>
#include <tests/helpers/test.h>
#include <tests/helpers/transcode_test_base.h>
#include <tests/reference/validate_utf16.h>
namespace {
constexpr std::array<size_t, 7> input_size{7, 16, 12, 64, 67, 128, 256};
constexpr simdutf::endianness BE = simdutf::endianness::BIG;
using simdutf::tests::helpers::transcode_utf16_to_utf32_test_base;
} // namespace
TEST_LOOP(convert_2_UTF16_bytes) {
// range for 1, 2 or 3 UTF-8 bytes
simdutf::tests::helpers::RandomIntRanges random(
{{0x0000, 0x007f}, {0x0080, 0x07ff}, {0x0800, 0xd7ff}, {0xe000, 0xffff}},
seed);
auto procedure = [&implementation](const char16_t *utf16, size_t size,
char32_t *utf32) -> size_t {
return implementation.convert_utf16be_to_utf32(utf16, size, utf32);
};
auto size_procedure = [&implementation](const char16_t *utf16,
size_t size) -> size_t {
return implementation.utf32_length_from_utf16be(utf16, size);
};
for (size_t size : input_size) {
transcode_utf16_to_utf32_test_base test(BE, random, size);
ASSERT_TRUE(test(procedure));
ASSERT_TRUE(test.check_size(size_procedure));
}
}
TEST_LOOP(convert_with_surrogates) {
// range for 3 or 4 UTF-8 bytes
simdutf::tests::helpers::RandomIntRanges random(
{{0x0800, 0xd800 - 1}, {0xe000, 0x10ffff}}, seed);
auto procedure = [&implementation](const char16_t *utf16, size_t size,
char32_t *utf32) -> size_t {
return implementation.convert_utf16be_to_utf32(utf16, size, utf32);
};
auto size_procedure = [&implementation](const char16_t *utf16,
size_t size) -> size_t {
return implementation.utf32_length_from_utf16be(utf16, size);
};
for (size_t size : input_size) {
transcode_utf16_to_utf32_test_base test(BE, random, size);
ASSERT_TRUE(test(procedure));
ASSERT_TRUE(test.check_size(size_procedure));
}
}
TEST(convert_fails_if_there_is_sole_low_surrogate) {
auto procedure = [&implementation](const char16_t *utf16, size_t size,
char32_t *utf32) -> size_t {
return implementation.convert_utf16be_to_utf32(utf16, size, utf32);
};
const size_t size = 64;
transcode_utf16_to_utf32_test_base test(BE, []() { return '*'; }, size + 32);
for (char16_t low_surrogate = 0xdc00; low_surrogate <= 0xdfff;
low_surrogate++) {
for (size_t i = 0; i < size; i++) {
const auto old = test.input_utf16[i];
test.input_utf16[i] = to_utf16be(low_surrogate);
ASSERT_TRUE(test(procedure));
test.input_utf16[i] = old;
}
}
}
TEST(convert_fails_if_there_is_sole_high_surrogate) {
auto procedure = [&implementation](const char16_t *utf16, size_t size,
char32_t *utf32) -> size_t {
return implementation.convert_utf16be_to_utf32(utf16, size, utf32);
};
const size_t size = 64;
transcode_utf16_to_utf32_test_base test(BE, []() { return '*'; }, size + 32);
for (char16_t high_surrogate = 0xdc00; high_surrogate <= 0xdfff;
high_surrogate++) {
for (size_t i = 0; i < size; i++) {
const auto old = test.input_utf16[i];
test.input_utf16[i] = to_utf16be(high_surrogate);
ASSERT_TRUE(test(procedure));
test.input_utf16[i] = old;
}
}
}
TEST(
convert_fails_if_there_is_low_surrogate_is_followed_by_another_low_surrogate) {
auto procedure = [&implementation](const char16_t *utf16, size_t size,
char32_t *utf32) -> size_t {
return implementation.convert_utf16be_to_utf32(utf16, size, utf32);
};
const size_t size = 64;
transcode_utf16_to_utf32_test_base test(BE, []() { return '*'; }, size + 32);
for (char16_t low_surrogate = 0xdc00; low_surrogate <= 0xdfff;
low_surrogate++) {
for (size_t i = 0; i < size - 1; i++) {
const auto old0 = test.input_utf16[i + 0];
const auto old1 = test.input_utf16[i + 1];
test.input_utf16[i + 0] = to_utf16be(low_surrogate);
test.input_utf16[i + 1] = to_utf16be(low_surrogate);
ASSERT_TRUE(test(procedure));
test.input_utf16[i + 0] = old0;
test.input_utf16[i + 1] = old1;
}
}
}
TEST(convert_fails_if_there_is_surrogate_pair_is_followed_by_high_surrogate) {
auto procedure = [&implementation](const char16_t *utf16, size_t size,
char32_t *utf32) -> size_t {
return implementation.convert_utf16be_to_utf32(utf16, size, utf32);
};
const size_t size = 64;
transcode_utf16_to_utf32_test_base test(BE, []() { return '*'; }, size + 32);
const char16_t low_surrogate = to_utf16be(0xd801);
const char16_t high_surrogate = to_utf16be(0xdc02);
for (size_t i = 0; i < size - 2; i++) {
const auto old0 = test.input_utf16[i + 0];
const auto old1 = test.input_utf16[i + 1];
const auto old2 = test.input_utf16[i + 2];
test.input_utf16[i + 0] = low_surrogate;
test.input_utf16[i + 1] = high_surrogate;
test.input_utf16[i + 2] = high_surrogate;
ASSERT_TRUE(test(procedure));
test.input_utf16[i + 0] = old0;
test.input_utf16[i + 1] = old1;
test.input_utf16[i + 2] = old2;
}
}
TEST(all_possible_8_codepoint_combinations) {
auto procedure = [&implementation](const char16_t *utf16, size_t size,
char32_t *utf32) -> size_t {
return implementation.convert_utf16be_to_utf32(utf16, size, utf32);
};
std::vector<char32_t> output_utf32(256, ' ');
const auto &combinations = all_utf16_combinations(BE);
for (const auto &input_utf16 : combinations) {
if (simdutf::tests::reference::validate_utf16(BE, input_utf16.data(),
input_utf16.size())) {
transcode_utf16_to_utf32_test_base test(BE, input_utf16);
ASSERT_TRUE(test(procedure));
} else {
ASSERT_FALSE(procedure(input_utf16.data(), input_utf16.size(),
output_utf32.data()));
}
}
}
#if SIMDUTF_CPLUSPLUS23
namespace {
template <auto input> constexpr auto size_be() {
return simdutf::utf32_length_from_utf16be(input);
}
template <auto input> constexpr auto convert_be() {
using namespace simdutf::tests::helpers;
CTString<char32_t, size_be<input>()> tmp;
const auto ret = simdutf::convert_utf16be_to_utf32(input, tmp);
if (ret != tmp.size()) {
throw "unexpected write size";
}
return tmp;
}
} // namespace
TEST(compile_time_convert_utf16be_to_utf32) {
using namespace simdutf::tests::helpers;
static_assert(convert_be<u"köttbulle"_utf16be>() == U"köttbulle"_utf32);
}
#endif
TEST_MAIN
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