Check for determine-reboot-cause service status (#14607)

* Check for determine-reboot-cause service status

* Remove additional step to check dmesg for errors

tests/common/reboot.py

@@ -495,3 +495,23 @@ def check_reboot_cause_history(dut, reboot_type_history_queue):
     logger.error("The number of expected reboot-cause:{} is more than that of actual reboot-cuase:{}".format(
         reboot_type_history_len, len(reboot_type_history_queue)))
     return False
+
+
+def check_determine_reboot_cause_service(dut):
+    """
+    @summary: This function verifies the status of the 'determine-reboot-cause' service on the device under test (DUT).
+    It checks the service's ActiveState and SubState using systemctl.
+    @param dut: The AnsibleHost object of DUT.
+    """
+    # Check the 'determine-reboot-cause' service status
+    logger.info("Checking 'determine-reboot-cause' service status using systemctl")
+    service_state = dut.get_service_props("determine-reboot-cause.service")
+
+    # Validate service is active
+    active_state = service_state.get("ActiveState", "")
+    sub_state = service_state.get("SubState", "")
+    logger.info(f"'determine-reboot-cause' ActiveState: {active_state}, SubState: {sub_state}")
+
+    assert active_state == "active", f"Service 'determine-reboot-cause' is not active. Current state: {active_state}"
+    assert sub_state == "exited", f"Service 'determine-reboot-cause' did not exit cleanly. \
+            Current sub-state: {sub_state}"

tests/platform_tests/test_reboot.py

@@ -13,8 +13,8 @@
 from tests.common.fixtures.conn_graph_facts import conn_graph_facts     # noqa F401
 from tests.common.utilities import wait_until, get_plt_reboot_ctrl
 from tests.common.reboot import sync_reboot_history_queue_with_dut, reboot, check_reboot_cause,\
-    check_reboot_cause_history, reboot_ctrl_dict, wait_for_startup,\
-    REBOOT_TYPE_HISTOYR_QUEUE, REBOOT_TYPE_COLD,\
+    check_reboot_cause_history, check_determine_reboot_cause_service, reboot_ctrl_dict,\
+    wait_for_startup, REBOOT_TYPE_HISTOYR_QUEUE, REBOOT_TYPE_COLD,\
     REBOOT_TYPE_SOFT, REBOOT_TYPE_FAST, REBOOT_TYPE_WARM, REBOOT_TYPE_WATCHDOG
 from tests.common.platform.transceiver_utils import check_transceiver_basic
 from tests.common.platform.interface_utils import check_all_interface_information, get_port_map
@@ -149,6 +149,14 @@ def check_interfaces_and_services(dut, interfaces, xcvr_skip_list,
         check_sysfs(dut)
 
     if reboot_type is not None:
+        logging.info("Check the determine-reboot-cause service")
+        os_version = dut.os_version.split(".")[0]
+        if os_version < "202106":
+            logging.info("DUT has OS version {}, skip the check determine-reboot-cause service \
+                    for release before 202106" .format(os_version))
+        else:
+            check_determine_reboot_cause_service(dut)
+
         logging.info("Check reboot cause")
         assert wait_until(MAX_WAIT_TIME_FOR_REBOOT_CAUSE, 20, 30, check_reboot_cause, dut, reboot_type), \
             "got reboot-cause failed after rebooted by %s" % reboot_type