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Diffstat (limited to 'gnulib-tests/test-nstrftime.c')
| -rw-r--r-- | gnulib-tests/test-nstrftime.c | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/gnulib-tests/test-nstrftime.c b/gnulib-tests/test-nstrftime.c new file mode 100644 index 0000000..22dab6c --- /dev/null +++ b/gnulib-tests/test-nstrftime.c @@ -0,0 +1,343 @@ +/* Test that nstrftime works as required. + Copyright (C) 2011-2023 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. */ + +/* Written by Jim Meyering. */ + +#include <config.h> + +#include "strftime.h" + +#include "intprops.h" + +#include <errno.h> +#include <limits.h> +#include <stdio.h> +#include <string.h> +#include <time.h> +#include <unistd.h> + +#include "macros.h" +#define STREQ(a, b) (strcmp (a, b) == 0) + +/* Support for settings like TZ='<+00>0' was added in IEEE Std 1003.1-2001. */ +#define TZ_ANGLE_BRACKETS_SHOULD_WORK (200112 <= _POSIX_VERSION) + +struct posixtm_test +{ + time_t in; + int in_ns; + char const *fmt; + char const *exp; +}; + +static struct posixtm_test const T[] = + { + { 1300000000, 0, "%F", "2011-03-13" }, + { 0, 10, "%T.%N", "00:00:00.000000010" }, + { 56, 123456789, "%T.%12N", "00:00:56.123456789000" }, + { 0, 0, NULL, NULL } + }; + +static int +posixtm_test (void) +{ + int fail = 0; + unsigned int i; + + for (i = 0; T[i].fmt; i++) + { + char buf[1000]; + time_t t = T[i].in; + struct tm *tm = gmtime (&t); + size_t n; + + ASSERT (tm); + + n = nstrftime (buf, sizeof buf, T[i].fmt, tm, 0, T[i].in_ns); + if (n == 0) + { + fail = 1; + printf ("nstrftime failed with format %s\n", T[i].fmt); + } + + if (! STREQ (buf, T[i].exp)) + { + fail = 1; + printf ("%s: result mismatch: got %s, expected %s\n", + T[i].fmt, buf, T[i].exp); + } + } + + return fail; +} + +struct tzalloc_test +{ + timezone_t tz; + char const *setting; +}; + +static struct tzalloc_test TZ[] = + { +#define Pacific 0 + { 0, "PST8PDT,M3.2.0,M11.1.0" }, +#define Arizona 1 + { 0, "MST7" }, +#define UTC 2 + { 0, 0 }, +#define CentEur 3 + { 0, "CET-1CEST,M3.5.0,M10.5.0/3" }, +#define Japan 4 + { 0, "JST-9" }, +#define NZ 5 + { 0, "NZST-12NZDT,M9.5.0,M4.1.0/3" }, +#define Unknown 6 + { 0, "<-00>0" }, + { 0 } + }; + +struct localtime_rz_test +{ + /* Input parameters. */ + struct tzalloc_test *tza; + time_t t; + + /* Expected result. */ + char const *exp; + + /* Determines if an incorrectly unset tm_isdst + results in failure or just a warning. */ + int ahistorical; +}; + +static struct localtime_rz_test LT[] = + { + { TZ+Pacific, 0, "1969-12-31 16:00:00 -0800 (PST)", 0 }, + { TZ+Arizona, 0, "1969-12-31 17:00:00 -0700 (MST)", 0 }, + { TZ+UTC , 0, "1970-01-01 00:00:00 +0000 (UTC)", 0 }, + { TZ+CentEur, 0, "1970-01-01 01:00:00 +0100 (CET)", 0 }, + { TZ+Japan , 0, "1970-01-01 09:00:00 +0900 (JST)", 0 }, + { TZ+NZ , 0, "1970-01-01 13:00:00 +1300 (NZDT)", 1 }, + { TZ+Pacific, 500000001, "1985-11-04 16:53:21 -0800 (PST)", 0 }, + { TZ+Arizona, 500000001, "1985-11-04 17:53:21 -0700 (MST)", 0 }, + { TZ+UTC , 500000001, "1985-11-05 00:53:21 +0000 (UTC)", 0 }, + { TZ+CentEur, 500000001, "1985-11-05 01:53:21 +0100 (CET)", 1 }, + { TZ+Japan , 500000001, "1985-11-05 09:53:21 +0900 (JST)", 0 }, + { TZ+NZ , 500000001, "1985-11-05 13:53:21 +1300 (NZDT)", 0 }, + { TZ+Pacific, 1000000002, "2001-09-08 18:46:42 -0700 (PDT)", 0 }, + { TZ+Arizona, 1000000002, "2001-09-08 18:46:42 -0700 (MST)", 0 }, + { TZ+UTC , 1000000002, "2001-09-09 01:46:42 +0000 (UTC)", 0 }, + { TZ+CentEur, 1000000002, "2001-09-09 03:46:42 +0200 (CEST)", 0 }, + { TZ+Japan , 1000000002, "2001-09-09 10:46:42 +0900 (JST)", 0 }, + { TZ+NZ , 1000000002, "2001-09-09 13:46:42 +1200 (NZST)", 0 }, +#if TZ_ANGLE_BRACKETS_SHOULD_WORK + { TZ+Unknown, 0, "1970-01-01 00:00:00 -0000 (-00)", 0 }, + { TZ+Unknown, 500000001, "1985-11-05 00:53:21 -0000 (-00)", 0 }, + { TZ+Unknown, 1000000002, "2001-09-09 01:46:42 -0000 (-00)", 0 }, +#endif + { 0 } + }; + +static int +tzalloc_test (void) +{ + int fail = 0; + int i; + + for (i = 0; LT[i].tza; i++) + { + struct tzalloc_test *tza = LT[i].tza; + long lt = LT[i].t; + timezone_t tz = tza->tz; + char const *setting; + static char const format[] = "%Y-%m-%d %H:%M:%S %z (%Z)"; + char buf[1000]; + struct tm tm; + size_t n; + + if (!tz && tza->setting) + { + tz = tzalloc (tza->setting); + if (!tz) + { + fail = 1; + printf ("%s: tzalloc: %s\n", TZ[i].setting, strerror (errno)); + continue; + } + tza->tz = tz; + } + + setting = tza->setting ? tza->setting : "UTC0"; + + if (!localtime_rz (tz, <[i].t, &tm)) + { + fail = 1; + printf ("%s: %ld: localtime_rz: %s\n", setting, lt, + strerror (errno)); + continue; + } + + n = nstrftime (buf, sizeof buf, format, &tm, tz, 0); + if (n == 0) + { + fail = 1; + printf ("%s: %ld: nstrftime failed\n", setting, lt); + continue; + } + + if (! (STREQ (buf, LT[i].exp) + || (!tz && n == strlen (LT[i].exp) + && memcmp (buf, LT[i].exp, n - sizeof "(GMT)" + 1) == 0 + && STREQ (buf + n - sizeof "(GMT)" + 1, "(GMT)")))) + { + /* Don't fail for unhandled dst in ahistorical entries, + as gnulib doesn't currently fix that issue, seen on Darwin 14. */ + if (!LT[i].ahistorical || tm.tm_isdst) + fail = 1; + printf ("%s: expected \"%s\", got \"%s\"\n", + setting, LT[i].exp, buf); + } + } + + return fail; +} + + +static int +quarter_test (void) +{ + int result = 0; + size_t mon; + + /* Check %q. */ + for (mon = 1; mon <= 12; mon++) + { + char out[2]; + char exp[2] = {0,}; + struct tm qtm = { .tm_mon = mon - 1 }; + char fmt[3] = {'%','q','\0'}; + + size_t r = nstrftime (out, sizeof (out), fmt, &qtm, 0, 0); + if (r == 0) + { + puts ("nstrftime(\"%q\") failed"); + result = 1; + break; + } + + exp[0] = mon < 4 ? '1' : mon < 7 ? '2' : mon < 10 ? '3' : '4'; + if (strcmp (out, exp) != 0) + { + printf ("nstrftime %%q: expected \"%s\", got \"%s\"\n", exp, out); + result = 1; + break; + } + } + + return result; +} + +static int +errno_test (void) +{ + int fail = 0; + struct tm tm = { .tm_year = 2020 - 1900, .tm_mday = 1 }; + char buf[INT_BUFSIZE_BOUND (time_t)]; + size_t n; + int bigyear = LLONG_MAX - 1900 < INT_MAX ? LLONG_MAX - 1900 : INT_MAX; + + errno = 0; + n = nstrftime (buf, 0, "%m", &tm, 0, 0); + if (! (n == 0 && errno == ERANGE)) + { + fail = 1; + printf ("nstrftime failed to set errno = ERANGE\n"); + } + + errno = 0; + n = nstrftime (buf, sizeof buf, "", &tm, 0, 0); + if (! (n == 0 && errno == 0)) + { + fail = 1; + printf ("nstrftime failed to leave errno alone\n"); + } + + + tm.tm_year = bigyear; + errno = 0; + n = nstrftime (buf, sizeof buf, "%s", &tm, 0, 0); + if (n == 0) + { + if (errno != EOVERFLOW) + { + fail = 1; + printf ("nstrftime failed to set errno = EOVERFLOW\n"); + } + + if (mktime_z (0, &tm) != (time_t) -1) + { + fail = 1; + printf ("nstrftime %%s failed but mktime_z worked for tm_year=%d\n", + bigyear); + } + } + else + { + long long int text_seconds = atoll (buf); + if (text_seconds <= (LLONG_MAX - 1 < TYPE_MAXIMUM (time_t) + ? LLONG_MAX - 1 : TYPE_MAXIMUM (time_t))) + { + time_t bigtime = text_seconds; + struct tm *tmp = gmtime (&bigtime); + if (!tmp) + { + fail = 1; + printf ("gmtime failed on nstrftime result\n"); + } + else + { + char buf1[sizeof buf]; + size_t n1 = nstrftime (buf1, sizeof buf1, "%s", tmp, 0, 0); + buf1[n1] = '\0'; + if (! STREQ (buf, buf1)) + { + fail = 1; + printf ("nstrftime %%s first returned '%s', then '%s'\n", + buf, buf1); + } + } + } + } + + return fail; +} + +int +main (void) +{ + int fail = 0; + fail |= posixtm_test (); + fail |= tzalloc_test (); + fail |= quarter_test (); + fail |= errno_test (); + return fail; +} + +/* +Local Variables: +indent-tabs-mode: nil +End: +*/ |