tests: move lib/timespec_util to unit/timeutil

Since native_sim and unit_testing platforms can now be compiled with
time_t as 64-bits, that means that all platforms in Zephyr are
consistent.

Move the (now platform-independent) lib/timespec_util tests to
unit/timeutil.

Signed-off-by: Chris Friedt <cfriedt@tenstorrent.com>

Author: cfriedt

tests/lib/timespec_util/CMakeLists.txt

@@ -14,4 +14,5 @@ target_sources(testbinary
     test_s32.c
     test_s64.c
     test_sync.c
+    timespec.c
 )

tests/lib/timespec_util/prj.conf

@@ -8,6 +8,8 @@
 #include "timeutil_test.h"
 #include "../../../lib/utils/timeutil.c"
 
+extern void *setup(void);
+
 void timeutil_check(const struct timeutil_test_data *tp,
 		    size_t count)
 {
@@ -52,4 +54,4 @@ void timeutil_check(const struct timeutil_test_data *tp,
 	}
 }
 
-ZTEST_SUITE(timeutil_api, NULL, NULL, NULL, NULL, NULL);
+ZTEST_SUITE(timeutil_api, NULL, setup, NULL, NULL, NULL);

tests/lib/timespec_util/testcase.yaml

@@ -365,7 +365,7 @@ ZTEST(timeutil_api, test_timespec_to_timeout)
 	}
 }
 
-static void *setup(void)
+void *setup(void)
 {
 	printk("CONFIG_64BIT=%c\n", IS_ENABLED(CONFIG_64BIT) ? 'y' : 'n');
 	printk("CONFIG_TIMEOUT_64BIT=%c\n", CONFIG_TIMEOUT_64BIT ? 'y' : 'n');
@@ -377,5 +377,3 @@ static void *setup(void)
 
 	return NULL;
 }
-
-ZTEST_SUITE(timeutil_api, NULL, setup, NULL, NULL, NULL);