fix: flaky smoke test

Author: vgorkavenko

src/modules/oracles/common/consensus.py

@@ -80,9 +80,7 @@ def __init__(self, w3: W3, **kwargs):
                 raise NotImplementedError(f'{var} attribute should be set.')
 
     def check_contract_configs(self):
-        root = self.w3.cc.get_block_root('head').root
-        block_details = self.w3.cc.get_block_details(root)
-        bs = build_blockstamp(block_details)
+        bs = self._get_latest_blockstamp()
 
         config = self.get_chain_config(bs)
         cc_config = self.w3.cc.get_config_spec()

tests/main/test_main_cycle_smoke.py

@@ -2,11 +2,14 @@
 import logging.handlers
 import multiprocessing
 from concurrent.futures import ProcessPoolExecutor
+from typing import cast
 
 import pytest
 
 from src import variables
 from src.main import main
+from src.modules.common.daemon_module import DaemonModule
+from src.modules.oracles.common.consensus import ConsensusModule
 from src.types import OracleModuleName
 
 
@@ -22,6 +25,9 @@ def run_main_with_logging(self, module_name, log_queue):
         variables.DAEMON = False
         variables.CYCLE_SLEEP_IN_SECONDS = 0
 
+        # Use last finalized instead of head slot for avoiding calls with non-existent block at the moment of cycle
+        ConsensusModule._get_latest_blockstamp = lambda self: cast(DaemonModule, self)._receive_last_finalized_slot()
+
         if module_name is OracleModuleName.CSM:
             variables.PERFORMANCE_COLLECTOR_URI = ["http://localhost:9020"]