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cc65/test/val/lib_common_gmtime_localtime.c
2024-01-22 16:38:39 +01:00

111 lines
3.8 KiB
C

#include <stdio.h>
#include <string.h>
#include <time.h>
int fails = 0;
typedef struct _test_data {
time_t t;
char *gmt;
char *local;
} test_data;
/* Test data generated using glibc 2.37 */
test_data data[] = {
/* First year */
{0x00000000, "Thu Jan 1 00:00:00 1970\n", "Thu Jan 1 01:00:00 1970\n"},
{0x004e7970, "Sun Mar 1 12:34:56 1970\n", "Sun Mar 1 13:34:56 1970\n"},
{0x01e1337f, "Thu Dec 31 23:59:59 1970\n", "Fri Jan 1 00:59:59 1971\n"},
/* First leap year */
{0x03c26700, "Sat Jan 1 00:00:00 1972\n", "Sat Jan 1 01:00:00 1972\n"},
{0x03c8fe7f, "Wed Jan 5 23:59:59 1972\n", "Thu Jan 6 00:59:59 1972\n"},
{0x041180ff, "Tue Feb 29 23:59:59 1972\n", "Wed Mar 1 00:59:59 1972\n"},
{0x04118100, "Wed Mar 1 00:00:00 1972\n", "Wed Mar 1 01:00:00 1972\n"},
{0x05a4ebff, "Sun Dec 31 23:59:59 1972\n", "Mon Jan 1 00:59:59 1973\n"},
/* A non-leap year */
{0x63b0cd00, "Sun Jan 1 00:00:00 2023\n", "Sun Jan 1 01:00:00 2023\n"},
{0x63fe957f, "Tue Feb 28 23:59:59 2023\n", "Wed Mar 1 00:59:59 2023\n"},
{0x63fe9580, "Wed Mar 1 00:00:00 2023\n", "Wed Mar 1 01:00:00 2023\n"},
{0x656d4ec0, "Mon Dec 4 04:00:00 2023\n", "Mon Dec 4 05:00:00 2023\n"},
{0x6592007f, "Sun Dec 31 23:59:59 2023\n", "Mon Jan 1 00:59:59 2024\n"},
/* Another leap year */
{0x65920080, "Mon Jan 1 00:00:00 2024\n", "Mon Jan 1 01:00:00 2024\n"},
{0x65e11a7f, "Thu Feb 29 23:59:59 2024\n", "Fri Mar 1 00:59:59 2024\n"},
{0x65e11a80, "Fri Mar 1 00:00:00 2024\n", "Fri Mar 1 01:00:00 2024\n"},
{0x6774857f, "Tue Dec 31 23:59:59 2024\n", "Wed Jan 1 00:59:59 2025\n"},
/* End of century */
{0xf48656ff, "Thu Dec 31 23:59:59 2099\n", "Fri Jan 1 00:59:59 2100\n"},
/* A non-leap year for exceptional reasons */
{0xf4865700, "Fri Jan 1 00:00:00 2100\n", "Fri Jan 1 01:00:00 2100\n"},
{0xf4d41f7f, "Sun Feb 28 23:59:59 2100\n", "Mon Mar 1 00:59:59 2100\n"},
{0xf4d41f80, "Mon Mar 1 00:00:00 2100\n", "Mon Mar 1 01:00:00 2100\n"},
{0xf4fceff0, "Wed Mar 31 23:00:00 2100\n", "Thu Apr 1 00:00:00 2100\n"},
{0xf6678a7f, "Fri Dec 31 23:59:59 2100\n", "Sat Jan 1 00:59:59 2101\n"},
/* First post-2100 leap year */
{0xfc0b2500, "Tue Jan 1 00:00:00 2104\n", "Tue Jan 1 01:00:00 2104\n"},
{0xfc5a3eff, "Fri Feb 29 23:59:59 2104\n", "Sat Mar 1 00:59:59 2104\n"},
{0xfc5a3f00, "Sat Mar 1 00:00:00 2104\n", "Sat Mar 1 01:00:00 2104\n"},
{0xfcaa9c70, "Wed Apr 30 23:00:00 2104\n", "Thu May 1 00:00:00 2104\n"},
/* End of epoch */
{0xfdedaa00, "Thu Jan 1 00:00:00 2105\n", "Thu Jan 1 01:00:00 2105\n"},
{0xffffffff, "Sun Feb 7 06:28:15 2106\n", "Thu Jan 1 00:59:59 1970\n"}
};
int main (void)
{
int i;
struct tm *tm;
char *str;
tm = gmtime(NULL);
if (tm != NULL) {
printf("gmtime should return NULL with a NULL parameter\n");
fails++;
}
tm = localtime(NULL);
if (tm != NULL) {
printf("localtime should return NULL with a NULL parameter\n");
fails++;
}
/* Verify conversion both ways */
for (i = 0; ; i++) {
time_t t = data[i].t;
tm = gmtime(&t);
str = asctime(tm);
if (strcmp(data[i].gmt, str)) {
printf("0x%lx: gmtime: unexpected result: expected %s, got %s\n", t, data[i].gmt, str);
fails++;
}
_tz.timezone = 0;
tm = localtime(&t);
str = asctime(tm);
if (strcmp(data[i].gmt, str)) {
printf("0x%lx: localtime (UTC+0): unexpected result: expected %s, got %s\n", t, data[i].gmt, str);
fails++;
}
_tz.timezone = 3600;
tm = localtime(&t);
str = asctime(tm);
if (strcmp(data[i].local, str)) {
printf("0x%lx: localtime (UTC+1): unexpected result: expected %s, got %s\n", t, data[i].local, str);
fails++;
}
if (t == 0xFFFFFFFF)
break;
}
return fails;
}