Compare PEL, Redfish event log and verify PEL log

Changes:
   - Added code
     "verify_no_pel_exists_on_bmc"
     "compare_pel_and_redfish_log"

Tested: - Ran successfully
     "verify_no_pel_exists_on_bmc"
     "compare_pel_and_redfish_log"

Change-Id: I39ed987814b83018164c2ec3e3b8228367a02517
Signed-off-by: Sushil Singh <susilsi7@in.ibm.com>
diff --git a/lib/pel_utils.py b/lib/pel_utils.py
index 5f42070..bbc1688 100644
--- a/lib/pel_utils.py
+++ b/lib/pel_utils.py
@@ -4,13 +4,13 @@
 PEL functions.
 """
 
+from robot.libraries.BuiltIn import BuiltIn
+from datetime import datetime
 import json
 import os
 import sys
-
 import bmc_ssh_utils as bsu
 import func_args as fa
-from robot.libraries.BuiltIn import BuiltIn
 
 base_path = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 sys.path.append(base_path + "/data/")
@@ -94,6 +94,84 @@
     return pel_data
 
 
+def verify_no_pel_exists_on_bmc():
+    r"""
+    Verify that no PEL exists in BMC. Raise an exception if it does.
+    """
+
+    try:
+        pel_data = get_pel_data_from_bmc()
+
+        if len(pel_data) == 0:
+            return True
+        else:
+            print("PEL data present. \n", pel_data)
+            raise peltool_exception("PEL data present in BMC")
+    except Exception as e:
+        raise peltool_exception("Failed to get PEL data from BMC : " + str(e))
+
+
+def compare_pel_and_redfish_event_log(pel_record, event_record):
+    r"""
+    Compare PEL log attributes like "SRC", "Created at" with Redfish
+    event log attributes like "EventId", "Created".
+    Return False if they do not match.
+
+    Description of arguments:
+    pel_record     PEL record.
+    event_record   Redfish event which is equivalent of PEL record.
+    """
+
+    try:
+        # Below is format of PEL record / event record and following
+        # i.e. "SRC", "Created at" from
+        # PEL record is compared with "EventId", "Created" from event record.
+
+        # PEL Log attributes
+        # SRC        : XXXXXXXX
+        # Created at : 11/14/2022 12:38:04
+
+        # Event log attributes
+        # EventId : XXXXXXXX XXXXXXXX XXXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
+
+        # Created : 2022-11-14T12:38:04+00:00
+
+        print("\nPEL records : {0}".format(pel_record))
+        print("\nEvent records : {0}".format(event_record))
+
+        pel_src = pel_record['pel_data']['SRC']
+        pel_created_time = \
+            pel_record['pel_detail_data']['Private Header']['Created at']
+
+        event_ids = (event_record['EventId']).split(' ')
+
+        event_time_format = (event_record['Created']).split('T')
+        event_date = (event_time_format[0]).split('-')
+        event_date = \
+            datetime(int(event_date[0]), int(event_date[1]), int(event_date[2]))
+        event_date = event_date.strftime("%m/%d/%Y")
+        event_sub_time_format = (event_time_format[1]).split('+')
+        event_date_time = event_date + " " + event_sub_time_format[0]
+
+        event_created_time = event_date_time.replace('-', '/')
+
+        print("\nPEL SRC : {0} | PEL Created Time : {1}".
+              format(pel_src, pel_created_time))
+        print("\nError event ID : {0} | Error Log Created Time : {1}".
+              format(event_ids[0], event_created_time))
+
+        if pel_src == event_ids[0] and pel_created_time == event_created_time:
+            print("\nPEL SRC and created date time match with "
+                  "event ID, created time")
+        else:
+            raise peltool_exception("\nPEL SRC and created date time did not "
+                                    "match with event ID, created time")
+    except Exception as e:
+        raise peltool_exception("Exception occured during PEL and Event log "
+                                "comparison for SRC or event ID and created "
+                                "time : " + str(e))
+
+
 def fetch_all_pel_ids_for_src(src_id, severity, include_hidden_pels=False):
     r"""
     Fetch all PEL IDs for the input SRC ID based on the severity type