Kernel: poll: code coverage improvement

Add some testcases to test some unnormal branches,
for covering branches that not covered.Meanwhile,
Using the public fatal handler function to handle
fatal errors.

Signed-off-by: Ningx Zhao <[email protected]>

Author: Zhaoningx

tests/kernel/poll/prj.conf

@@ -3,3 +3,6 @@ CONFIG_POLL=y
 CONFIG_DYNAMIC_OBJECTS=y
 CONFIG_TEST_USERSPACE=y
 CONFIG_MP_NUM_CPUS=1
+CONFIG_ZTEST_FATAL_HOOK=y
+CONFIG_ZTEST_ASSERT_HOOK=y
+CONFIG_SYS_CLOCK_EXISTS=y

tests/kernel/poll/src/main.c

@@ -13,6 +13,40 @@ extern void test_poll_cancel_main_high_prio(void);
 extern void test_poll_multi(void);
 extern void test_poll_threadstate(void);
 extern void test_poll_grant_access(void);
+extern void test_poll_fail_grant_access(void);
+extern void test_poll_lower_prio(void);
+extern void test_condition_met_type_err(void);
+#ifdef CONFIG_USERSPACE
+extern void test_k_poll_user_num_err(void);
+extern void test_k_poll_user_mem_err(void);
+extern void test_k_poll_user_type_sem_err(void);
+extern void test_k_poll_user_type_signal_err(void);
+extern void test_k_poll_user_type_fifo_err(void);
+extern void test_poll_signal_init_null(void);
+extern void test_poll_signal_check_obj(void);
+extern void test_poll_signal_check_signal(void);
+extern void test_poll_signal_check_result(void);
+extern void test_poll_signal_raise_null(void);
+extern void test_poll_signal_reset_null(void);
+#else
+#define dummy_test(_name)	   \
+	static void _name(void)	   \
+	{			   \
+		ztest_test_skip(); \
+	}
+
+dummy_test(test_k_poll_user_num_err);
+dummy_test(test_k_poll_user_mem_err);
+dummy_test(test_k_poll_user_type_sem_err);
+dummy_test(test_k_poll_user_type_signal_err);
+dummy_test(test_k_poll_user_type_fifo_err);
+dummy_test(test_poll_signal_init_null);
+dummy_test(test_poll_signal_check_obj);
+dummy_test(test_poll_signal_check_signal);
+dummy_test(test_poll_signal_check_result);
+dummy_test(test_poll_signal_raise_null);
+dummy_test(test_poll_signal_reset_null);
+#endif /* CONFIG_USERSPACE */
 
 #ifdef CONFIG_64BIT
 #define MAX_SZ	256
@@ -26,6 +60,7 @@ K_HEAP_DEFINE(test_heap, MAX_SZ * 4);
 void test_main(void)
 {
 	test_poll_grant_access();
+	test_poll_fail_grant_access();
 
 	k_thread_heap_assign(k_current_get(), &test_heap);
 
@@ -36,6 +71,20 @@ void test_main(void)
 			 ztest_1cpu_unit_test(test_poll_cancel_main_low_prio),
 			 ztest_1cpu_unit_test(test_poll_cancel_main_high_prio),
 			 ztest_unit_test(test_poll_multi),
-			 ztest_1cpu_unit_test(test_poll_threadstate));
+			 ztest_1cpu_unit_test(test_poll_lower_prio),
+			 ztest_1cpu_unit_test(test_poll_threadstate),
+			 ztest_1cpu_unit_test(test_condition_met_type_err),
+			 ztest_user_unit_test(test_k_poll_user_num_err),
+			 ztest_user_unit_test(test_k_poll_user_mem_err),
+			 ztest_user_unit_test(test_k_poll_user_type_sem_err),
+			 ztest_user_unit_test(test_k_poll_user_type_signal_err),
+			 ztest_user_unit_test(test_k_poll_user_type_fifo_err),
+			 ztest_user_unit_test(test_poll_signal_init_null),
+			 ztest_user_unit_test(test_poll_signal_check_obj),
+			 ztest_user_unit_test(test_poll_signal_check_signal),
+			 ztest_user_unit_test(test_poll_signal_check_result),
+			 ztest_user_unit_test(test_poll_signal_raise_null),
+			 ztest_user_unit_test(test_poll_signal_reset_null)
+			 );
 	ztest_run_test_suite(poll_api);
 }