grab some time tests from glibc

1 files changed, 170 insertions, 0 deletions

diff --git a/test/time/tst-timezone.c b/test/time/tst-timezone.c
new file mode 100644
index 000000000..4c879163c
--- /dev/null
+++ b/test/time/tst-timezone.c
@@ -0,0 +1,170 @@
+/* Copyright (C) 1998, 1999, 2000, 2005 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Jaeger <aj@suse.de>, 1998.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+int failed = 0;
+
+struct test_times
+{
+  const char *name;
+  int daylight;
+  int timezone;
+  const char *tzname[2];
+};
+
+static const struct test_times tests[] =
+{
+  { "Europe/Amsterdam", 1, -3600, { "CET", "CEST" }},
+  { "Europe/Berlin", 1, -3600, { "CET", "CEST" }},
+  { "Europe/London", 1, 0, { "GMT", "BST" }},
+  { "Universal", 0, 0, {"UTC", "UTC" }},
+  { "Australia/Melbourne", 1, -36000, { "EST", "EST" }},
+  { "America/Sao_Paulo", 1, 10800, {"BRT", "BRST" }},
+  { "America/Chicago", 1, 21600, {"CST", "CDT" }},
+  { "America/Indiana/Indianapolis", 1, 18000, {"EST", "EDT" }},
+  { "America/Los_Angeles", 1, 28800, {"PST", "PDT" }},
+  { "Asia/Tokyo", 1, -32400, {"JST", "JDT" }},
+  { "Pacific/Auckland", 1, -43200, { "NZST", "NZDT" }},
+  { NULL, 0, 0 }
+};
+
+/* This string will be used for `putenv' calls.  */
+char envstring[100];
+
+static void
+print_tzvars (void)
+{
+  printf ("tzname[0]: %s\n", tzname[0]);
+  printf ("tzname[1]: %s\n", tzname[1]);
+  printf ("daylight: %d\n", daylight);
+  printf ("timezone: %ld\n", timezone);
+}
+
+
+static void
+check_tzvars (const char *name, int dayl, int timez, const char *const tznam[])
+{
+  int i;
+
+  if (daylight != dayl)
+    {
+      printf ("*** Timezone: %s, daylight is: %d but should be: %d\n",
+	      name, daylight, dayl);
+      ++failed;
+    }
+  if (timezone != timez)
+    {
+      printf ("*** Timezone: %s, timezone is: %ld but should be: %d\n",
+	      name, timezone, timez);
+      ++failed;
+    }
+  for (i = 0; i <= 1; ++i)
+    if (strcmp (tzname[i], tznam[i]) != 0)
+      {
+	printf ("*** Timezone: %s, tzname[%d] is: %s but should be: %s\n",
+		name, i, tzname[i], tznam[i]);
+	++failed;
+      }
+}
+
+
+int
+main (int argc, char ** argv)
+{
+  time_t t;
+  const struct test_times *pt;
+  char buf[BUFSIZ];
+
+  /* This should be: Fri May 15 01:02:16 1998 (UTC).  */
+  t = 895194136;
+  printf ("We use this date: %s\n", asctime (gmtime (&t)));
+
+  for (pt = tests; pt->name != NULL; ++pt)
+    {
+      /* Start with a known state */
+      printf ("Checking timezone %s\n", pt->name);
+      sprintf (buf, "TZ=%s", pt->name);
+      if (putenv (buf))
+	{
+	  puts ("putenv failed.");
+	  failed = 1;
+	}
+      tzset ();
+      print_tzvars ();
+      check_tzvars (pt->name, pt->daylight, pt->timezone, pt->tzname);
+
+      /* calling localtime shouldn't make a difference */
+      localtime (&t);
+      print_tzvars ();
+      check_tzvars (pt->name, pt->daylight, pt->timezone, pt->tzname);
+    }
+
+  /* From a post of Scott Harrington <seh4@ix.netcom.com> to the timezone
+     mailing list.  */
+  {
+    struct tm tmBuf = {0, 0, 0, 10, 3, 98, 0, 0, -1};
+    char buf[200];
+    strcpy (envstring, "TZ=Europe/London");
+    putenv (envstring);
+    t = mktime (&tmBuf);
+    snprintf (buf, sizeof (buf), "TZ=%s %ld %d %d %d %d %d %d %d %d %d",
+	      getenv ("TZ"), t,
+	      tmBuf.tm_sec, tmBuf.tm_min, tmBuf.tm_hour,
+	      tmBuf.tm_mday, tmBuf.tm_mon, tmBuf.tm_year,
+	      tmBuf.tm_wday, tmBuf.tm_yday, tmBuf.tm_isdst);
+    fputs (buf, stdout);
+    puts (" should be");
+    puts ("TZ=Europe/London 892162800 0 0 0 10 3 98 5 99 1");
+    if (strcmp (buf, "TZ=Europe/London 892162800 0 0 0 10 3 98 5 99 1") != 0)
+      {
+	failed = 1;
+	fputs (" FAILED ***", stdout);
+      }
+  }
+
+  printf("\n");
+
+  {
+    struct tm tmBuf = {0, 0, 0, 10, 3, 98, 0, 0, -1};
+    char buf[200];
+    strcpy (envstring, "TZ=GMT");
+    /* No putenv call needed!  */
+    t = mktime (&tmBuf);
+    snprintf (buf, sizeof (buf), "TZ=%s %ld %d %d %d %d %d %d %d %d %d",
+	      getenv ("TZ"), t,
+	      tmBuf.tm_sec, tmBuf.tm_min, tmBuf.tm_hour,
+	      tmBuf.tm_mday, tmBuf.tm_mon, tmBuf.tm_year,
+	      tmBuf.tm_wday, tmBuf.tm_yday, tmBuf.tm_isdst);
+    fputs (buf, stdout);
+    puts (" should be");
+    puts ("TZ=GMT 892166400 0 0 0 10 3 98 5 99 0");
+    if (strcmp (buf, "TZ=GMT 892166400 0 0 0 10 3 98 5 99 0") != 0)
+      {
+	failed = 1;
+	fputs (" FAILED ***", stdout);
+      }
+  }
+
+  return failed ? EXIT_FAILURE : EXIT_SUCCESS;
+}