From 560e5de575720c13d9085fe1014cb0377c9ccd12 Mon Sep 17 00:00:00 2001
From: Arthur de Jong <arthur@arthurdejong.org>
Date: Mon, 2 Sep 2013 23:34:56 +0200
Subject: Add a test for tio timeout calculations

This test checks whether the proposed remaining time to sleep is
reasonable.
---
 tests/Makefile.am        |  6 ++++--
 tests/test_tio_timeout.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 54 insertions(+), 2 deletions(-)
 create mode 100644 tests/test_tio_timeout.c

(limited to 'tests')

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 45f73fc..e8a5680 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -20,7 +20,7 @@
 
 TESTS = test_dict test_set test_tio test_expr test_getpeercred test_cfg \
         test_myldap.sh test_common test_nsscmds.sh test_pamcmds.sh \
-        test_manpages.sh test_clock
+        test_manpages.sh test_clock test_tio_timeout
 if HAVE_PYTHON
   TESTS += test_pycompile.sh test_pylint.sh
 endif
@@ -31,7 +31,7 @@ endif
 AM_TESTS_ENVIRONMENT = PYTHON='@PYTHON@'; export PYTHON;
 
 check_PROGRAMS = test_dict test_set test_tio test_expr test_getpeercred \
-                 test_cfg test_myldap test_common test_clock \
+                 test_cfg test_myldap test_common test_clock test_tio_timeout \
                  lookup_netgroup lookup_shadow
 
 EXTRA_DIST = nslcd-test.conf usernames.txt in_testenv.sh test_myldap.sh \
@@ -87,6 +87,8 @@ test_common_LDADD = ../nslcd/cfg.o $(common_nslcd_LDADD)
 
 test_clock_SOURCES = test_clock.c
 
+test_tio_timeout_SOURCES = test_tio_timeout.c ../common/tio.h
+
 lookup_netgroup_SOURCES = lookup_netgroup.c
 
 lookup_shadow_SOURCES = lookup_shadow.c
diff --git a/tests/test_tio_timeout.c b/tests/test_tio_timeout.c
new file mode 100644
index 0000000..18d8d4f
--- /dev/null
+++ b/tests/test_tio_timeout.c
@@ -0,0 +1,50 @@
+/*
+   test_tio_timeout.c - tests for tio deadline calculations
+   This file is part of the nss-pam-ldapd library.
+
+   Copyright (C) 2013 Arthur de Jong
+
+   This 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.
+
+   This 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 this library; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301 USA
+*/
+
+/* we include the source because we want to test static methods */
+#include "../common/tio.c"
+
+#include <assert.h>
+
+int main(int UNUSED(argc), char UNUSED(*argv[]))
+{
+  struct timespec deadline = {0, 0};
+  int timeout = 100 * 1000;
+  int sleeptime = 1000;
+  int low = -100;
+  int high = 200;
+  int res;
+  int ok;
+  /* initialise deadline */
+  assert(tio_time_remaining(&deadline, timeout) == timeout);
+  /* wait one second */
+  sleep(sleeptime / 1000);
+  /* re-calculate the deadline */
+  res = tio_time_remaining(&deadline, timeout);
+  /* it should be timeout - sleeptime */
+  res = timeout - sleeptime - res;
+  ok = (res > low) && (res < high);
+  printf("%s: %d msec difference (%swithin %d...%d msec)\n",
+         ok ? "OK" : "FAIL", res, ok ? "" : "NOT ",
+         low, high);
+  return !ok;
+}
-- 
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