time, string, spawn tests from libc-testsuit

[libc-test] / src / time / time.c

diff --git a/src/time/time.c b/src/time/time.c
new file mode 100644 (file)
index 0000000..a06aac7
--- /dev/null
+++ b/src/time/time.c
@@ -0,0 +1,74 @@
+#define _XOPEN_SOURCE 700
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+#include "test.h"
+
+/* We use this instead of memcmp because some broken C libraries
+ * add additional nonstandard fields to struct tm... */
+ 
+int tm_cmp(struct tm tm1, struct tm tm2)
+{
+       return  tm1.tm_sec  != tm2.tm_sec  ||
+               tm1.tm_min  != tm2.tm_min  ||
+               tm1.tm_hour != tm2.tm_hour ||
+               tm1.tm_mday != tm2.tm_mday ||
+               tm1.tm_mon  != tm2.tm_mon  ||
+               tm1.tm_year != tm2.tm_year ||
+               tm1.tm_wday != tm2.tm_wday ||
+               tm1.tm_yday != tm2.tm_yday ||
+               tm1.tm_isdst!= tm2.tm_isdst;
+}
+
+char *tm_str(struct tm tm)
+{
+       static int i;
+       static char b[4][64];
+       i = (i+1)%4;
+       snprintf(b[i], sizeof b[i],
+               "s=%02d m=%02d h=%02d mday=%02d mon=%02d year=%04d wday=%d yday=%d isdst=%d",
+               tm.tm_sec, tm.tm_min, tm.tm_hour,
+               tm.tm_mday, tm.tm_mon, tm.tm_year,
+               tm.tm_wday, tm.tm_yday, tm.tm_isdst);
+       return b[i];
+}
+
+#define TM(ss,mm,hh,md,mo,yr,wd,yd,dst) (struct tm){ \
+       .tm_sec = ss, .tm_min = mm, .tm_hour = hh,    \
+       .tm_mday = md, .tm_mon = mo, .tm_year = yr,    \
+       .tm_wday = wd, .tm_yday = yd, .tm_isdst = dst }
+
+#define TM_EPOCH    TM(0,0,0,1,0,70,4,0,0)
+#define TM_Y2038_1S TM(7,14,3,19,0,138,2,18,0)
+#define TM_Y2038    TM(8,14,3,19,0,138,2,18,0)
+
+#define TEST_TM(r,x,m) (!tm_cmp((r),(x)) || \
+       (error("%s failed:\n\tresult: %s\n\texpect: %s\n", \
+              m, tm_str(r), tm_str(x)), 0) )
+
+#define TEST(r, f, x, m) ( \
+       ((r) = (f)) == (x) || \
+       (error("%s failed (" m ")\n", #f, r, x), 0) )
+
+void test_time(void) {
+       struct tm tm, *tm_p;
+       time_t t;
+
+       putenv("TZ=GMT");
+       tzset();
+
+       t=0; tm_p = gmtime(&t);
+       TEST_TM(*tm_p, TM_EPOCH, "gmtime(0)");
+
+       tm = TM_Y2038_1S;
+       t = mktime(&tm);
+       tm = *(gmtime(&t));
+       TEST_TM(*tm_p, TM_Y2038_1S, "mktime/gmtime(Y2038-1)");
+
+       tm = TM_Y2038;
+       t = mktime(&tm);
+       tm = *(gmtime(&t));
+       TEST_TM(*tm_p, TM_Y2038, "mktime/gmtime(Y2038)");
+
+       /* FIXME: set a TZ var and check DST boundary conditions */
+}