tests: lib: c_lib: add a test for clock()

Add a test for the ISO C `clock()` function, which has been present since C89. Signed-off-by: Chris Friedt <[email protected]>
zephyrproject-rtos · May 11, 2023 · dfa3101 · dfa3101
1 parent 6644b4c
commit dfa3101
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/tests/lib/c_lib/src/main.c b/tests/lib/c_lib/src/main.c
@@ -1229,3 +1229,14 @@ ZTEST(test_c_lib, test_exit)
 	k_thread_abort(tid);
 	zassert_equal(a, 0, "exit failed");
 }
+
+ZTEST(test_c_lib, test_clock)
+{
+	clock_t then;
+	clock_t now;
+
+	then = clock();
+	k_usleep(USEC_PER_SEC);
+	now = clock();
+	zassert_true(now > then);
+}