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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stddef.h>
#include "simdutf_c.h"
#define ASSERT_TRUE(cond) \
do { \
if (!(cond)) { \
fprintf(stderr, "FAIL %s:%d: %s\n", __FILE__, __LINE__, #cond); \
return 1; \
} \
} while (0)
#define ASSERT_EQUAL_SIZE_T(a, b) \
do { \
if ((a) != (b)) { \
fprintf(stderr, "FAIL %s:%d: %s != %s (got %zu vs %zu)\n", __FILE__, \
__LINE__, #a, #b, (size_t)(a), (size_t)(b)); \
return 1; \
} \
} while (0)
#define ASSERT_EQUAL_INT(a, b) \
do { \
if ((int)(a) != (int)(b)) { \
fprintf(stderr, "FAIL %s:%d: %s != %s (got %d vs %d)\n", __FILE__, \
__LINE__, #a, #b, (int)(a), (int)(b)); \
return 1; \
} \
} while (0)
static const char *hello = "hello";
static const size_t hello_len = 5;
static int test_validate_utf8_c(void) {
bool ok = simdutf_validate_utf8(hello, hello_len);
ASSERT_TRUE(ok);
simdutf_result r = simdutf_validate_utf8_with_errors(hello, hello_len);
ASSERT_EQUAL_INT(r.error, SIMDUTF_ERROR_SUCCESS);
ASSERT_EQUAL_SIZE_T(r.count, hello_len);
return 0;
}
static int test_convert_utf8_to_utf16_c(void) {
char16_t out[16];
size_t n = simdutf_convert_utf8_to_utf16(hello, hello_len, out);
ASSERT_EQUAL_SIZE_T(n, hello_len);
for (size_t i = 0; i < n; i++) {
ASSERT_TRUE(out[i] == (char16_t)hello[i]);
}
return 0;
}
static int test_convert_utf8_to_utf32_c(void) {
char32_t out[16];
size_t n = simdutf_convert_utf8_to_utf32(hello, hello_len, out);
ASSERT_EQUAL_SIZE_T(n, hello_len);
for (size_t i = 0; i < n; i++) {
ASSERT_TRUE(out[i] == (char32_t)hello[i]);
}
return 0;
}
static int test_count_utf8_c(void) {
size_t cnt = simdutf_count_utf8(hello, hello_len);
ASSERT_EQUAL_SIZE_T(cnt, hello_len);
return 0;
}
static int test_find_c(void) {
const char *f = simdutf_find(hello, hello + hello_len, 'e');
ASSERT_TRUE(f == hello + 1);
return 0;
}
static int test_base64_c(void) {
const char *b64 = "aGVsbG8="; /* "hello" */
char binout[16] = {0};
size_t outlen = sizeof(binout);
simdutf_result br = simdutf_base64_to_binary_safe(
b64, strlen(b64), binout, &outlen, SIMDUTF_BASE64_DEFAULT,
SIMDUTF_LAST_CHUNK_LOOSE, true);
ASSERT_EQUAL_INT(br.error, SIMDUTF_ERROR_SUCCESS);
ASSERT_EQUAL_SIZE_T(outlen, hello_len);
ASSERT_TRUE(memcmp(binout, "hello", hello_len) == 0);
char b64out[32] = {0};
size_t b64len = simdutf_binary_to_base64("hello", hello_len, b64out,
SIMDUTF_BASE64_DEFAULT);
ASSERT_TRUE(b64len >= 8);
return 0;
}
static int test_ascii_and_detect_c(void) {
ASSERT_TRUE(simdutf_validate_ascii(hello, hello_len));
simdutf_result r = simdutf_validate_ascii_with_errors(hello, hello_len);
ASSERT_EQUAL_INT(r.error, SIMDUTF_ERROR_SUCCESS);
simdutf_encoding_type et = simdutf_autodetect_encoding(hello, hello_len);
ASSERT_EQUAL_INT(et, SIMDUTF_ENCODING_UTF8);
int encs = simdutf_detect_encodings(hello, hello_len);
ASSERT_TRUE(encs >= 0);
return 0;
}
static int test_lengths_and_conversions_c(void) {
char latin_out[8] = {0};
size_t latin_to_utf8 = simdutf_convert_latin1_to_utf8("abc", 3, latin_out);
ASSERT_EQUAL_SIZE_T(latin_to_utf8, 3);
/* prepare a UTF-16 sample */
char16_t u16[5] = {(char16_t)'h', (char16_t)'e', (char16_t)'l', (char16_t)'l',
(char16_t)'o'};
size_t u16len = simdutf_utf8_length_from_utf16(u16, 5);
/* convert utf16->utf8 safe */
char out8[8] = {0};
size_t safelen =
simdutf_convert_utf16_to_utf8_safe(u16, 5, out8, sizeof(out8));
ASSERT_EQUAL_SIZE_T(safelen, u16len);
/* convert with errors */
simdutf_result cr = simdutf_convert_utf16_to_utf8_with_errors(u16, 5, out8);
ASSERT_EQUAL_INT(cr.error, SIMDUTF_ERROR_SUCCESS);
return 0;
}
static int test_counts_and_find_utf16_c(void) {
char16_t u16[5] = {(char16_t)'h', (char16_t)'e', (char16_t)'l', (char16_t)'l',
(char16_t)'o'};
size_t c16 = simdutf_count_utf16(u16, 5);
ASSERT_EQUAL_SIZE_T(c16, 5);
const char16_t *f16 = simdutf_find_utf16(u16, u16 + 5, (char16_t)'e');
ASSERT_TRUE(f16 != NULL);
ASSERT_TRUE(f16 == u16 + 1);
return 0;
}
static int test_base64_length_helpers_c(void) {
size_t maxbin = simdutf_maximal_binary_length_from_base64("aGVsbG8=", 8);
ASSERT_TRUE(maxbin >= 5);
size_t b64len = simdutf_base64_length_from_binary(5, SIMDUTF_BASE64_DEFAULT);
ASSERT_TRUE(b64len >= 8);
size_t with_lines = simdutf_base64_length_from_binary_with_lines(
5, SIMDUTF_BASE64_DEFAULT, 4);
ASSERT_TRUE(with_lines >= b64len);
char out[64] = {0};
size_t bl = simdutf_binary_to_base64_with_lines("hello", 5, out, 4,
SIMDUTF_BASE64_DEFAULT);
ASSERT_TRUE(bl > 0);
return 0;
}
int main(void) {
struct {
const char *name;
int (*fn)(void);
} tests[] = {{"validate_utf8_c", test_validate_utf8_c},
{"convert_utf8_to_utf16_c", test_convert_utf8_to_utf16_c},
{"convert_utf8_to_utf32_c", test_convert_utf8_to_utf32_c},
{"count_utf8_c", test_count_utf8_c},
{"find_c", test_find_c},
{"base64_c", test_base64_c},
{"ascii_and_detect_c", test_ascii_and_detect_c},
{"lengths_and_conversions_c", test_lengths_and_conversions_c},
{"counts_and_find_utf16_c", test_counts_and_find_utf16_c},
{"base64_length_helpers_c", test_base64_length_helpers_c},
{NULL, NULL}};
for (int i = 0; tests[i].name != NULL; i++) {
printf("%s... ", tests[i].name);
fflush(stdout);
int r = tests[i].fn();
if (r != 0) {
printf("FAILED\n");
return EXIT_FAILURE;
}
printf("OK\n");
}
printf("All tests passed.\n");
return EXIT_SUCCESS;
}
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