>From 8e356e3d3dd556b2716216fdc7a1bbafe29c8ccb Mon Sep 17 00:00:00 2001 From: Bruno Haible Date: Wed, 8 Mar 2023 17:02:38 +0100 Subject: [PATCH 2/3] time: Add tests. * tests/test-time.c: New file. * modules/time-tests: New file. --- ChangeLog | 4 ++++ modules/time-tests | 13 ++++++++++++ tests/test-time.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 66 insertions(+) create mode 100644 modules/time-tests create mode 100644 tests/test-time.c diff --git a/ChangeLog b/ChangeLog index d65b3393c4..580b78c331 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2023-03-08 Bruno Haible + time: Add tests. + * tests/test-time.c: New file. + * modules/time-tests: New file. + time: New module. * lib/time.in.h (time): New declaration. * lib/time.c: New file. diff --git a/modules/time-tests b/modules/time-tests new file mode 100644 index 0000000000..e817f332cb --- /dev/null +++ b/modules/time-tests @@ -0,0 +1,13 @@ +Files: +tests/test-time.c +tests/signature.h +tests/macros.h + +Depends-on: +gettimeofday + +configure.ac: + +Makefile.am: +TESTS += test-time +check_PROGRAMS += test-time diff --git a/tests/test-time.c b/tests/test-time.c new file mode 100644 index 0000000000..3986ee2f3d --- /dev/null +++ b/tests/test-time.c @@ -0,0 +1,49 @@ +/* Test of time() function. + Copyright (C) 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 . */ + +/* Written by Bruno Haible. */ + +#include + +#include + +#include "signature.h" +SIGNATURE_CHECK (time, time_t, (time_t *)); + +#include + +#include "macros.h" + +int +main (void) +{ + /* Check consistency of time() with gettimeofday().tv_sec. */ + struct timeval tv1; + struct timeval tv2; + time_t tt3; + + /* Wait until gettimeofday() reports an increase in tv_sec. */ + ASSERT (gettimeofday (&tv1, NULL) == 0); + do + ASSERT (gettimeofday (&tv2, NULL) == 0); + while (tv2.tv_sec == tv1.tv_sec); + /* We are now at the beginning of a second. Test whether time() reports + the new second or the previous one. */ + tt3 = time (NULL); + ASSERT (tt3 >= tv2.tv_sec); + + return 0; +} -- 2.34.1