norm_test.c

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/*-------------------------------------------------------------------------
 * norm_test.c
 *      Program to test Unicode normalization functions.
 *
 * Portions Copyright (c) 2017-2025, PostgreSQL Global Development Group
 *
 * IDENTIFICATION
 *    src/common/unicode/norm_test.c
 *
 *-------------------------------------------------------------------------
 */
#include "postgres_fe.h"
 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
#include "common/unicode_norm.h"
 
#include "norm_test_table.h"
 
static char *
print_wchar_str(const char32_t *s)
{
#define BUF_DIGITS 50
    static char buf[BUF_DIGITS * 11 + 1];
    int         i;
    char       *p;
 
    i = 0;
    p = buf;
    while (*s && i < BUF_DIGITS)
    {
        p += sprintf(p, "U+%04X ", *s);
        i++;
        s++;
    }
    *p = '\0';
 
    return buf;
}
 
static int
pg_wcscmp(const char32_t *s1, const char32_t *s2)
{
    for (;;)
    {
        if (*s1 < *s2)
            return -1;
        if (*s1 > *s2)
            return 1;
        if (*s1 == 0)
            return 0;
        s1++;
        s2++;
    }
}
 
int
main(int argc, char **argv)
{
    const       pg_unicode_test *test;
 
    for (test = UnicodeNormalizationTests; test->input[0] != 0; test++)
    {
        for (int form = 0; form < 4; form++)
        {
            char32_t   *result;
 
            result = unicode_normalize(form, test->input);
 
            if (pg_wcscmp(test->output[form], result) != 0)
            {
                printf("FAILURE (NormalizationTest.txt line %d form %d):\n", test->linenum, form);
                printf("input:    %s\n", print_wchar_str(test->input));
                printf("expected: %s\n", print_wchar_str(test->output[form]));
                printf("got:      %s\n", print_wchar_str(result));
                printf("\n");
                exit(1);
            }
        }
    }
 
    printf("norm_test: All tests successful!\n");
    exit(0);
}