[PATCH 1/2] tests: Add test for comparing clocks.

[Christian Mauderer]

From: Christian Mauderer <Christian.Mauderer at embedded-brains.de>

This test compares the elapsed time on the wall clock with the one on
the mono clock.
---
 testsuites/sptests/Makefile.am                     |  1 +
 testsuites/sptests/configure.ac                    |  1 +
 testsuites/sptests/sptimecounter04/Makefile.am     | 19 +++++
 testsuites/sptests/sptimecounter04/init.c          | 88 ++++++++++++++++++++++
 .../sptests/sptimecounter04/sptimecounter04.doc    | 12 +++
 .../sptests/sptimecounter04/sptimecounter04.scn    |  2 +
 6 files changed, 123 insertions(+)
 create mode 100644 testsuites/sptests/sptimecounter04/Makefile.am
 create mode 100644 testsuites/sptests/sptimecounter04/init.c
 create mode 100644 testsuites/sptests/sptimecounter04/sptimecounter04.doc
 create mode 100644 testsuites/sptests/sptimecounter04/sptimecounter04.scn

diff --git a/testsuites/sptests/Makefile.am b/testsuites/sptests/Makefile.am
index b4bf741e70..cf95c4a9f6 100644
--- a/testsuites/sptests/Makefile.am
+++ b/testsuites/sptests/Makefile.am
@@ -53,6 +53,7 @@ _SUBDIRS += spintrcritical23
 _SUBDIRS += sptimecounter01
 _SUBDIRS += sptimecounter02
 _SUBDIRS += sptimecounter03
+_SUBDIRS += sptimecounter04
 _SUBDIRS += spatomic01
 _SUBDIRS += spintrcritical22
 _SUBDIRS += spsem03
diff --git a/testsuites/sptests/configure.ac b/testsuites/sptests/configure.ac
index 7bdb02c9a7..8ecd9b75f1 100644
--- a/testsuites/sptests/configure.ac
+++ b/testsuites/sptests/configure.ac
@@ -51,6 +51,7 @@ spintrcritical23/Makefile
 sptimecounter01/Makefile
 sptimecounter02/Makefile
 sptimecounter03/Makefile
+sptimecounter04/Makefile
 spatomic01/Makefile
 spglobalcon01/Makefile
 spintrcritical22/Makefile
diff --git a/testsuites/sptests/sptimecounter04/Makefile.am b/testsuites/sptests/sptimecounter04/Makefile.am
new file mode 100644
index 0000000000..ebd6bc17d6
--- /dev/null
+++ b/testsuites/sptests/sptimecounter04/Makefile.am
@@ -0,0 +1,19 @@
+rtems_tests_PROGRAMS = sptimecounter04
+sptimecounter04_SOURCES = init.c
+
+dist_rtems_tests_DATA = sptimecounter04.scn sptimecounter04.doc
+
+include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP at .cfg
+include $(top_srcdir)/../automake/compile.am
+include $(top_srcdir)/../automake/leaf.am
+
+AM_CPPFLAGS += -I$(top_srcdir)/../support/include
+
+LINK_OBJS = $(sptimecounter04_OBJECTS)
+LINK_LIBS = $(sptimecounter04_LDLIBS)
+
+sptimecounter04$(EXEEXT): $(sptimecounter04_OBJECTS) $(sptimecounter04_DEPENDENCIES)
+	@rm -f sptimecounter04$(EXEEXT)
+	$(make-exe)
+
+include $(top_srcdir)/../automake/local.am
diff --git a/testsuites/sptests/sptimecounter04/init.c b/testsuites/sptests/sptimecounter04/init.c
new file mode 100644
index 0000000000..b596163cd3
--- /dev/null
+++ b/testsuites/sptests/sptimecounter04/init.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2017 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems at embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifdef HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include <assert.h>
+#include <time.h>
+#include <rtems.h>
+#include <rtems/test.h>
+#include <rtems/timespec.h>
+#include <unistd.h>
+
+#include "tmacros.h"
+
+const char rtems_test_name[] = "SPTIMECOUNTER 4";
+
+static void Init(rtems_task_argument arg)
+{
+  struct timespec real_start;
+  struct timespec mono_start;
+  struct timespec real_end;
+  struct timespec mono_end;
+  struct timespec real_elapsed;
+  struct timespec mono_elapsed;
+
+  struct timespec min;
+  struct timespec max;
+
+  int rv;
+
+  TEST_BEGIN();
+
+  rtems_timespec_set(&min, 1, 980 * 1000 * 1000);
+  rtems_timespec_set(&max, 2,  20 * 1000 * 1000);
+
+  rv = clock_gettime(CLOCK_REALTIME, &real_start);
+  assert(rv == 0);
+  rv = clock_gettime(CLOCK_MONOTONIC, &mono_start);
+  assert(rv == 0);
+
+  rtems_task_wake_after(2*rtems_clock_get_ticks_per_second());
+
+  rv = clock_gettime(CLOCK_REALTIME, &real_end);
+  assert(rv == 0);
+  rv = clock_gettime(CLOCK_MONOTONIC, &mono_end);
+  assert(rv == 0);
+
+  rtems_timespec_subtract(&real_start, &real_end, &real_elapsed);
+  rtems_timespec_subtract(&mono_start, &mono_end, &mono_elapsed);
+
+  assert(rtems_timespec_greater_than(&real_elapsed, &min));
+  assert(rtems_timespec_greater_than(&max, &real_elapsed));
+  assert(rtems_timespec_greater_than(&mono_elapsed, &min));
+  assert(rtems_timespec_greater_than(&max, &mono_elapsed));
+
+  TEST_END();
+  rtems_test_exit(0);
+}
+
+#define CONFIGURE_MICROSECONDS_PER_TICK 10000
+
+#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
+#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
+
+#define CONFIGURE_MAXIMUM_TASKS 1
+#define CONFIGURE_MAXIMUM_TIMERS 1
+#define CONFIGURE_MAXIMUM_PERIODS 1
+
+#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
+
+#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
+
+#define CONFIGURE_INIT
+
+#include <rtems/confdefs.h>
diff --git a/testsuites/sptests/sptimecounter04/sptimecounter04.doc b/testsuites/sptests/sptimecounter04/sptimecounter04.doc
new file mode 100644
index 0000000000..42bc514cc4
--- /dev/null
+++ b/testsuites/sptests/sptimecounter04/sptimecounter04.doc
@@ -0,0 +1,12 @@
+This file describes the directives and concepts tested by this test set.
+
+test set name: sptimecounter04
+
+directives:
+
+  clock_gettime
+
+concepts:
+
+  This test checks that the wall clock and the montonic clock advance at about
+  the same speed.
diff --git a/testsuites/sptests/sptimecounter04/sptimecounter04.scn b/testsuites/sptests/sptimecounter04/sptimecounter04.scn
new file mode 100644
index 0000000000..243f9cfee1
--- /dev/null
+++ b/testsuites/sptests/sptimecounter04/sptimecounter04.scn
@@ -0,0 +1,2 @@
+*** BEGIN OF TEST SPTIMECOUNTER_4 ***
+*** END OF TEST SPTIMECOUNTER_4 ***
-- 
2.12.3