do not catch error in HEAD as we need it fails on empty response

Signed-off-by: anastasia prasolova <anastasia@nspcc.ru>

robot/resources/lib/python_keywords/neofs_verbs.py

@@ -247,13 +247,7 @@ def head_object(wallet: str, cid: str, oid: str, bearer_token: str="",
         f'{"--raw" if is_raw else ""} '
         f'{"--ttl 1" if is_direct else ""}'
     )
-    output = None
-    try:
     output = _cmd_run(cmd)
-    except Exception as exc:
-        logger.info(f"Head request failed with output: {output}")
-        return None
-
     if not json_output:
         return output
 

robot/resources/lib/python_keywords/storage_policy.py

@@ -10,6 +10,7 @@ import complex_object_actions
 import neofs_verbs
 
 from robot.api.deco import keyword
+from robot.api import logger
 
 ROBOT_AUTO_KEYWORDS = False
 
@@ -51,11 +52,15 @@ def get_simple_object_copies(wallet: str, cid: str, oid: str):
     """
     copies = 0
     for node in NEOFS_NETMAP:
+        try:
             response = neofs_verbs.head_object(wallet, cid, oid,
                                     endpoint=node,
                                     is_direct=True)
             if response:
                 copies += 1
+        except Exception as exc:
+            logger.info(f"No {oid} object copy found on {node}, continue")
+            continue
     return copies
 
 
@@ -94,11 +99,15 @@ def get_nodes_with_object(wallet: str, cid: str, oid: str):
     """
     nodes_list = []
     for node in NEOFS_NETMAP:
+        try:
             res = neofs_verbs.head_object(wallet, cid, oid,
                             endpoint=node,
                             is_direct=True)
             if res is not None:
                 nodes_list.append(node)
+        except Exception as exc:
+            logger.info(f"No {oid} object copy found on {node}, continue")
+            continue
     return nodes_list