diff --git a/robot/resources/lib/python/neofs.py b/robot/resources/lib/python/neofs.py
index 68871bb5..bdf66cdd 100644
--- a/robot/resources/lib/python/neofs.py
+++ b/robot/resources/lib/python/neofs.py
@@ -2,7 +2,6 @@
 
 import base64
 from datetime import datetime
-import hashlib
 import json
 import os
 import re
@@ -12,13 +11,13 @@ import docker
 import base58
 
 from neo3 import wallet
-from common import *
+from common import (NEOFS_NETMAP, WALLET_PASS, NEOFS_ENDPOINT,
+NEOFS_NETMAP_DICT, ASSETS_DIR)
+from cli_helpers import _cmd_run
+import json_transformers
 from robot.api.deco import keyword
 from robot.api import logger
 
-from cli_helpers import _run_with_passwd, _cmd_run
-import json_transformers
-
 ROBOT_AUTO_KEYWORDS = False
 
 # path to neofs-cli executable
@@ -36,9 +35,9 @@ def get_scripthash(wif: str):
 def stop_nodes(down_num: int, *nodes_list):
 
     # select nodes to stop from list
-    stop_nodes = random.sample(nodes_list, down_num)
+    nodes = random.sample(nodes_list, down_num)
 
-    for node in stop_nodes:
+    for node in nodes:
         m = re.search(r'(s\d+).', node)
         node = m.group(1)
 
@@ -60,14 +59,13 @@ def start_nodes(*nodes_list):
 
 @keyword('Get nodes with object')
 def get_nodes_with_object(wallet: str, cid: str, oid: str):
-    copies = 0
 
     nodes_list = []
 
     for node in NEOFS_NETMAP:
-        search_res = _search_object(node, wallet, cid, oid)
-        if search_res:
-            if oid in search_res:
+        res = _search_object(node, wallet, cid, oid)
+        if res:
+            if oid in res:
                 nodes_list.append(node)
 
     logger.info(f"Nodes with object: {nodes_list}")
@@ -76,7 +74,6 @@ def get_nodes_with_object(wallet: str, cid: str, oid: str):
 
 @keyword('Get nodes without object')
 def get_nodes_without_object(wallet: str, cid: str, oid: str):
-    copies = 0
 
     nodes_list = []
 
@@ -101,14 +98,14 @@ def validate_storage_policy_for_object(wallet: str, expected_copies: int, cid, o
     oid = oid.strip()
 
     for node in storage_nodes:
-        search_res = _search_object(node, wallet, cid, oid)
-        if search_res:
-            if oid in search_res:
+        res = _search_object(node, wallet, cid, oid)
+        if res:
+            if oid in res:
                 copies += 1
                 found_nodes.append(node)
 
     if copies != expected_copies:
-        raise Exception(f"Object copies is not match storage policy.",
+        raise Exception("Object copies is not match storage policy."
                         f"Found: {copies}, expected: {expected_copies}.")
     else:
         logger.info(f"Found copies: {copies}, expected: {expected_copies}")
@@ -117,9 +114,11 @@ def validate_storage_policy_for_object(wallet: str, expected_copies: int, cid, o
 
     if expected_node_list:
         if sorted(found_nodes) == sorted(expected_node_list):
-            logger.info(f"Found node list '{found_nodes}' is equal for expected list '{expected_node_list}'")
+            logger.info(f"Found node list '{found_nodes}' "
+            f"is equal for expected list '{expected_node_list}'")
         else:
-            raise Exception(f"Found node list '{found_nodes}' is not equal to expected list '{expected_node_list}'")
+            raise Exception(f"Found node list '{found_nodes}' "
+            f"is not equal to expected list '{expected_node_list}'")
 
 
 @keyword('Verify Head Tombstone')
@@ -135,48 +134,42 @@ def verify_head_tombstone(wallet: str, cid: str, oid_ts: str, oid: str, addr: st
 
     # Header verification
     header_cid = full_headers["header"]["containerID"]["value"]
-    if (json_transformers.json_reencode(header_cid) == cid):
+    if json_transformers.json_reencode(header_cid) == cid:
         logger.info(f"Header CID is expected: {cid} ({header_cid} in the output)")
     else:
         raise Exception("Header CID is not expected.")
 
     header_owner = full_headers["header"]["ownerID"]["value"]
-    if (json_transformers.json_reencode(header_owner) == addr):
+    if json_transformers.json_reencode(header_owner) == addr:
         logger.info(f"Header ownerID is expected: {addr} ({header_owner} in the output)")
     else:
         raise Exception("Header ownerID is not expected.")
 
     header_type = full_headers["header"]["objectType"]
-    if (header_type == "TOMBSTONE"):
+    if header_type == "TOMBSTONE":
         logger.info(f"Header Type is expected: {header_type}")
     else:
         raise Exception("Header Type is not expected.")
 
     header_session_type = full_headers["header"]["sessionToken"]["body"]["object"]["verb"]
-    if (header_session_type == "DELETE"):
+    if header_session_type == "DELETE":
         logger.info(f"Header Session Type is expected: {header_session_type}")
     else:
         raise Exception("Header Session Type is not expected.")
 
     header_session_cid = full_headers["header"]["sessionToken"]["body"]["object"]["address"]["containerID"]["value"]
-    if (json_transformers.json_reencode(header_session_cid) == cid):
+    if json_transformers.json_reencode(header_session_cid) == cid:
         logger.info(f"Header ownerID is expected: {addr} ({header_session_cid} in the output)")
     else:
         raise Exception("Header Session CID is not expected.")
 
     header_session_oid = full_headers["header"]["sessionToken"]["body"]["object"]["address"]["objectID"]["value"]
-    if (json_transformers.json_reencode(header_session_oid) == oid):
+    if json_transformers.json_reencode(header_session_oid) == oid:
         logger.info(f"Header Session OID (deleted object) is expected: {oid} ({header_session_oid} in the output)")
     else:
         raise Exception("Header Session OID (deleted object) is not expected.")
 
 
-@keyword('Get file hash')
-def get_file_hash(filename : str):
-    file_hash = _get_file_hash(filename)
-    return file_hash
-
-
 @keyword('Get control endpoint with wif')
 def get_control_endpoint_with_wif(endpoint_number: str = ''):
     if endpoint_number == '':
@@ -232,7 +225,7 @@ def get_logs_latest_timestamp():
 
 
 @keyword('Find in Nodes Log')
-def find_in_nodes_Log(line: str, nodes_logs_time: dict):
+def find_in_nodes_log(line: str, nodes_logs_time: dict):
 
     client_api = docker.APIClient()
     container_names = list()
@@ -314,16 +307,6 @@ def sign_session_token(session_token: str, wallet: str, to_file: str=''):
     _cmd_run(cmd)
 
 
-def _get_file_hash(filename):
-    blocksize = 65536
-    hash = hashlib.md5()
-    with open(filename, "rb") as f:
-        for block in iter(lambda: f.read(blocksize), b""):
-            hash.update(block)
-    logger.info(f"Hash: {hash.hexdigest()}")
-    return hash.hexdigest()
-
-
 def _parse_oid(input_str: str):
     """
     This function parses OID from given CLI output. The input string we
@@ -348,9 +331,9 @@ def _parse_oid(input_str: str):
 
 
 def _search_object(node:str, wallet: str, cid:str, oid: str):
-    Cmd = (
+    cmd = (
         f'{NEOFS_CLI_EXEC} --rpc-endpoint {node} --wallet {wallet} --ttl 1 '
         f'object search --root --cid {cid} --oid {oid} --config {WALLET_PASS}'
     )
-    output = _cmd_run(Cmd)
+    output = _cmd_run(cmd)
     return output
diff --git a/robot/resources/lib/python/utility_keywords.py b/robot/resources/lib/python/utility_keywords.py
index da9fbd23..1602e1a7 100644
--- a/robot/resources/lib/python/utility_keywords.py
+++ b/robot/resources/lib/python/utility_keywords.py
@@ -15,19 +15,6 @@ from robot.libraries.BuiltIn import BuiltIn
 
 ROBOT_AUTO_KEYWORDS = False
 
-@keyword('Generate file of bytes')
-def generate_file_of_bytes(size: str) -> str:
-    """
-    Function generates big binary file with the specified size in bytes.
-    :param size:        the size in bytes, can be declared as 6e+6 for example
-    """
-    size = int(float(size))
-    filename = f"{os.getcwd()}/{ASSETS_DIR}/{uuid.uuid4()}"
-    with open(filename, 'wb') as fout:
-        fout.write(os.urandom(size))
-    logger.info(f"file with size {size} bytes has been generated: {filename}")
-    return filename
-
 @keyword('Generate file')
 def generate_file_and_file_hash(size: str) -> str:
     """
@@ -44,10 +31,29 @@ def generate_file_and_file_hash(size: str) -> str:
         fout.write(os.urandom(size))
     logger.info(f"file with size {size} bytes has been generated: {filename}")
 
-    file_hash = _get_file_hash(filename)
+    file_hash = get_file_hash(filename)
 
     return filename, file_hash
 
+
+@keyword('Get File Hash')
+def get_file_hash(filename: str):
+    """
+    This function generates hash for the specified file.
+    Args:
+        filename (str): the path to the file to generate hash for
+    Returns:
+        (str): the hash of the file
+    """
+    blocksize = 65536
+    file_hash = hashlib.md5()
+    with open(filename, "rb") as out:
+        for block in iter(lambda: out.read(blocksize), b""):
+            file_hash.update(block)
+    logger.info(f"Hash: {file_hash.hexdigest()}")
+    return file_hash.hexdigest()
+    
+
 @keyword('Get Docker Logs')
 def get_container_logs(testcase_name: str) -> None:
     client = docker.APIClient(base_url='unix://var/run/docker.sock')
@@ -102,12 +108,3 @@ def make_down(services: list=[]):
         _cmd_run(cmd, timeout=60)
 
     os.chdir(test_path)
-
-def _get_file_hash(filename: str):
-    blocksize = 65536
-    file_hash = hashlib.md5()
-    with open(filename, "rb") as out:
-        for block in iter(lambda: out.read(blocksize), b""):
-            file_hash.update(block)
-    logger.info(f"Hash: {file_hash.hexdigest()}")
-    return file_hash.hexdigest()
diff --git a/robot/testsuites/integration/acl/object_attributes/creation_epoch_filter.robot b/robot/testsuites/integration/acl/object_attributes/creation_epoch_filter.robot
index be540bd0..00bfa720 100644
--- a/robot/testsuites/integration/acl/object_attributes/creation_epoch_filter.robot
+++ b/robot/testsuites/integration/acl/object_attributes/creation_epoch_filter.robot
@@ -4,12 +4,9 @@ Variables       eacl_object_filters.py
 
 Library         acl.py
 Library         container.py
-Library         neofs.py
-Library         Collections
-Library         contract_keywords.py
+Library         utility_keywords.py
 
 Resource        common_steps_acl_extended.robot
-Resource        common_steps_acl_basic.robot
 Resource        payment_operations.robot
 Resource        setup_teardown.robot
 
diff --git a/robot/testsuites/integration/acl/object_attributes/object_id_filter.robot b/robot/testsuites/integration/acl/object_attributes/object_id_filter.robot
index eb449b9f..8ca16ebf 100644
--- a/robot/testsuites/integration/acl/object_attributes/object_id_filter.robot
+++ b/robot/testsuites/integration/acl/object_attributes/object_id_filter.robot
@@ -4,11 +4,9 @@ Variables       eacl_object_filters.py
 
 Library         acl.py
 Library         container.py
-Library         neofs.py
-Library         Collections
+Library         utility_keywords.py
 
 Resource        common_steps_acl_extended.robot
-Resource        common_steps_acl_basic.robot
 Resource        payment_operations.robot
 Resource        setup_teardown.robot
 
diff --git a/robot/testsuites/integration/acl/object_attributes/payload_length_filter.robot b/robot/testsuites/integration/acl/object_attributes/payload_length_filter.robot
index 6d43f559..bbcc1adc 100644
--- a/robot/testsuites/integration/acl/object_attributes/payload_length_filter.robot
+++ b/robot/testsuites/integration/acl/object_attributes/payload_length_filter.robot
@@ -4,11 +4,9 @@ Variables    eacl_object_filters.py
 
 Library     acl.py
 Library     container.py
-Library     neofs.py
-Library     Collections
+Library     utility_keywords.py
 
 Resource    common_steps_acl_extended.robot
-Resource    common_steps_acl_basic.robot
 Resource    payment_operations.robot
 Resource    setup_teardown.robot
 
diff --git a/robot/testsuites/integration/acl/storage_group/bearer_allow_sg.robot b/robot/testsuites/integration/acl/storage_group/bearer_allow_sg.robot
index 82dba2c4..e1ae7bfb 100644
--- a/robot/testsuites/integration/acl/storage_group/bearer_allow_sg.robot
+++ b/robot/testsuites/integration/acl/storage_group/bearer_allow_sg.robot
@@ -6,6 +6,7 @@ Library     acl.py
 Library     container.py
 Library     neofs.py
 Library     neofs_verbs.py
+Library     utility_keywords.py
 
 Resource    common_steps_acl_bearer.robot
 Resource    eacl_tables.robot
diff --git a/robot/testsuites/integration/network/netmap_control_drop.robot b/robot/testsuites/integration/network/netmap_control_drop.robot
index aa3a7e61..fe99a99d 100644
--- a/robot/testsuites/integration/network/netmap_control_drop.robot
+++ b/robot/testsuites/integration/network/netmap_control_drop.robot
@@ -3,13 +3,9 @@ Variables    common.py
 Variables    wellknown_acl.py
 
 Library     container.py
-Library     contract_keywords.py
 Library     neofs.py
 Library     neofs_verbs.py
-Library     payment_neogo.py
-
-Library     String
-Library     Process
+Library     utility_keywords.py
 
 Resource    setup_teardown.robot
 Resource    payment_operations.robot
@@ -27,12 +23,12 @@ Drop command in control group
     ${WALLET_STORAGE}    ${_} =          Prepare Wallet with WIF And Deposit    ${WIF_STORAGE}
     ${LOCODE} =         Get Locode
 
-    ${FILE_SIMPLE} =    Generate file of bytes    ${SIMPLE_OBJ_SIZE}
-    ${FILE_COMPLEX} =   Generate file of bytes    ${COMPLEX_OBJ_SIZE}
+    ${FILE_SIMPLE}    ${_} =    Generate file    ${SIMPLE_OBJ_SIZE}
+    ${FILE_COMPLEX}    ${_} =   Generate file    ${COMPLEX_OBJ_SIZE}
 
     ${WALLET}    ${_}    ${_} =    Prepare Wallet And Deposit
 
-    ${PRIV_CID} =       Create container             ${WALLET}    basic_acl=${PRIVATE_ACL_F}
+    ${PRIV_CID} =       Create Container    ${WALLET}
                         ...     rule=REP 1 CBF 1 SELECT 1 FROM * FILTER 'UN-LOCODE' EQ '${LOCODE}' AS LOC
 
     #########################
diff --git a/robot/testsuites/integration/network/netmap_simple.robot b/robot/testsuites/integration/network/netmap_simple.robot
index ceb72239..02828f78 100644
--- a/robot/testsuites/integration/network/netmap_simple.robot
+++ b/robot/testsuites/integration/network/netmap_simple.robot
@@ -4,9 +4,7 @@ Variables   common.py
 Library     container.py
 Library     neofs.py
 Library     neofs_verbs.py
-Library     payment_neogo.py
-Library     wallet_keywords.py
-Library     rpc_call_keywords.py
+Library     utility_keywords.py
 
 Resource    payment_operations.robot
 Resource    setup_teardown.robot
@@ -23,7 +21,7 @@ NeoFS Simple Netmap
     [Setup]             Setup
 
     ${WALLET}   ${_}    ${_} =    Prepare Wallet And Deposit
-    ${FILE} =          Generate file of bytes    ${SIMPLE_OBJ_SIZE}
+    ${FILE}    ${_} =          Generate file    ${SIMPLE_OBJ_SIZE}
 
     Validate Policy    ${WALLET}    ${FILE}    REP 2 IN X CBF 2 SELECT 2 FROM * AS X    2    @{EMPTY}
 
diff --git a/robot/testsuites/integration/network/replication.robot b/robot/testsuites/integration/network/replication.robot
index 154f0aa5..9a2616e0 100644
--- a/robot/testsuites/integration/network/replication.robot
+++ b/robot/testsuites/integration/network/replication.robot
@@ -3,12 +3,10 @@ Variables   common.py
 Variables   wellknown_acl.py
 
 Library     container.py
-Library     payment_neogo.py
 Library     neofs.py
 Library     neofs_verbs.py
-Library     wallet_keywords.py
-Library     rpc_call_keywords.py
 Library     contract_keywords.py
+Library     utility_keywords.py
 
 Library     Collections
 
@@ -41,8 +39,7 @@ Check Replication
     ${WALLET}   ${_}     ${_} =    Prepare Wallet And Deposit
     ${CID} =                Create Container    ${WALLET}    basic_acl=${ACL}
 
-    ${FILE} =               Generate file of bytes    ${SIMPLE_OBJ_SIZE}
-    ${FILE_HASH} =          Get file hash    ${FILE}
+    ${FILE}    ${_} =       Generate file    ${SIMPLE_OBJ_SIZE}
 
     ${S_OID} =              Put Object    ${WALLET}    ${FILE}    ${CID}
                             Validate storage policy for object    ${WALLET}    ${EXPECTED_COPIES}    ${CID}    ${S_OID}
diff --git a/robot/testsuites/integration/object/object_attributes.robot b/robot/testsuites/integration/object/object_attributes.robot
index 2e390bac..e21d0f1f 100644
--- a/robot/testsuites/integration/object/object_attributes.robot
+++ b/robot/testsuites/integration/object/object_attributes.robot
@@ -3,10 +3,8 @@ Variables   common.py
 Variables   wellknown_acl.py
 
 Library     container.py
-Library     neofs.py
 Library     neofs_verbs.py
-Library     payment_neogo.py
-Library     String
+Library     utility_keywords.py
 Library     Collections
 
 Resource    setup_teardown.robot
@@ -30,7 +28,7 @@ Duplicated Object Attributes
     ${WALLET}   ${_}     ${_} =    Prepare Wallet And Deposit
 
     ${PUBLIC_CID} =             Create Container       ${WALLET}    basic_acl=${PUBLIC_ACL_F}
-    ${FILE_S} =                 Generate file of bytes            ${SIMPLE_OBJ_SIZE}
+    ${FILE_S}    ${_} =         Generate File    ${SIMPLE_OBJ_SIZE}
 
 
     ###################################################
diff --git a/robot/testsuites/integration/object/object_complex.robot b/robot/testsuites/integration/object/object_complex.robot
index 4ae2d29c..3b9ea98d 100644
--- a/robot/testsuites/integration/object/object_complex.robot
+++ b/robot/testsuites/integration/object/object_complex.robot
@@ -4,9 +4,9 @@ Variables   common.py
 Library     neofs_verbs.py
 Library     complex_object_actions.py
 Library     neofs.py
-Library     payment_neogo.py
 Library     contract_keywords.py
 Library     Collections
+Library     utility_keywords.py
 
 Resource    common_steps_object.robot
 Resource    setup_teardown.robot
@@ -30,8 +30,7 @@ NeoFS Complex Object Operations
     ${WALLET}   ${ADDR}     ${WIF} =   Prepare Wallet And Deposit
     ${CID} =            Prepare container       ${WIF}    ${WALLET}
 
-    ${FILE} =           Generate file of bytes              ${COMPLEX_OBJ_SIZE}
-    ${FILE_HASH} =      Get file hash                       ${FILE}
+    ${FILE}    ${FILE_HASH} =    Generate file    ${COMPLEX_OBJ_SIZE}
 
     ${S_OID} =          Put object                 ${WALLET}    ${FILE}       ${CID}
     ${H_OID} =          Put object                 ${WALLET}    ${FILE}       ${CID}        user_headers=${FILE_USR_HEADER}
diff --git a/robot/testsuites/integration/object/object_expiration.robot b/robot/testsuites/integration/object/object_expiration.robot
index f6de4c8a..9e2dad86 100644
--- a/robot/testsuites/integration/object/object_expiration.robot
+++ b/robot/testsuites/integration/object/object_expiration.robot
@@ -1,10 +1,9 @@
 *** Settings ***
 Variables   common.py
 
-Library     neofs.py
 Library     neofs_verbs.py
-Library     payment_neogo.py
 Library     contract_keywords.py
+Library     utility_keywords.py
 
 Resource    common_steps_object.robot
 Resource    setup_teardown.robot
@@ -24,9 +23,7 @@ NeoFS Simple Object Operations
     ${WALLET}   ${_}     ${WIF} =   Prepare Wallet And Deposit
     ${CID} =    Prepare container      ${WIF}    ${WALLET}
 
-    ${FILE} =           Generate file of bytes    ${SIMPLE_OBJ_SIZE}
-    ${FILE_HASH} =      Get file hash    ${FILE}
-
+    ${FILE}    ${FILE_HASH} =    Generate File    ${SIMPLE_OBJ_SIZE}
     ${EPOCH} =          Get Epoch
 
     ${EPOCH_PRE} =      Evaluate    ${EPOCH}-1
diff --git a/robot/testsuites/integration/object/object_simple.robot b/robot/testsuites/integration/object/object_simple.robot
index 40b75b49..f20b0313 100644
--- a/robot/testsuites/integration/object/object_simple.robot
+++ b/robot/testsuites/integration/object/object_simple.robot
@@ -3,9 +3,9 @@ Variables   common.py
 
 Library     neofs.py
 Library     neofs_verbs.py
-Library     payment_neogo.py
 Library     contract_keywords.py
 Library     Collections
+Library     utility_keywords.py
 
 Resource    common_steps_object.robot
 Resource    payment_operations.robot
@@ -28,9 +28,7 @@ NeoFS Simple Object Operations
     ${WALLET}   ${ADDR}     ${WIF} =   Prepare Wallet And Deposit
     ${CID} =    Prepare container      ${WIF}    ${WALLET}
 
-    ${FILE} =           Generate file of bytes              ${SIMPLE_OBJ_SIZE}
-    ${FILE_HASH} =      Get file hash                       ${FILE}
-
+    ${FILE}    ${FILE_HASH} =    Generate file    ${SIMPLE_OBJ_SIZE}
 
     ${S_OID} =          Put object          ${WALLET}    ${FILE}       ${CID}
     ${H_OID} =          Put object          ${WALLET}    ${FILE}       ${CID}      user_headers=${FILE_USR_HEADER}
diff --git a/robot/testsuites/integration/object/storage_group/sg_of_complex_objects.robot b/robot/testsuites/integration/object/storage_group/sg_of_complex_objects.robot
index c4a1765d..b719cdb8 100644
--- a/robot/testsuites/integration/object/storage_group/sg_of_complex_objects.robot
+++ b/robot/testsuites/integration/object/storage_group/sg_of_complex_objects.robot
@@ -5,6 +5,7 @@ Library     neofs.py
 Library     neofs_verbs.py
 Library     storage_group.py
 Library     Collections
+Library     utility_keywords.py
 
 Resource    common_steps_object.robot
 Resource    setup_teardown.robot
@@ -25,7 +26,7 @@ NeoFS Complex Storagegroup
     ${WALLET}   ${_}     ${WIF} =   Prepare Wallet And Deposit
     ${CID} =            Prepare container    ${WIF}    ${WALLET}
 
-    ${FILE} =           Generate file of bytes     ${COMPLEX_OBJ_SIZE}
+    ${FILE}    ${_} =    Generate file    ${COMPLEX_OBJ_SIZE}
 
     ${OID_1} =          Put object    ${WALLET}    ${FILE}    ${CID}
     ${OID_2} =          Put object    ${WALLET}    ${FILE}    ${CID}
diff --git a/robot/testsuites/integration/object/storage_group/sg_of_simple_objects.robot b/robot/testsuites/integration/object/storage_group/sg_of_simple_objects.robot
index 8f6c0bea..aed45668 100644
--- a/robot/testsuites/integration/object/storage_group/sg_of_simple_objects.robot
+++ b/robot/testsuites/integration/object/storage_group/sg_of_simple_objects.robot
@@ -1,10 +1,9 @@
 *** Settings ***
 Variables   common.py
 
-Library     neofs.py
 Library     neofs_verbs.py
-Library     payment_neogo.py
 Library     storage_group.py
+Library     utility_keywords.py
 
 Resource    common_steps_object.robot
 Resource    setup_teardown.robot
@@ -25,7 +24,7 @@ NeoFS Simple Storagegroup
     ${WALLET}   ${_}     ${WIF} =   Prepare Wallet And Deposit
     ${CID} =            Prepare container      ${WIF}    ${WALLET}
 
-    ${FILE_S} =         Generate file of bytes            ${SIMPLE_OBJ_SIZE}
+    ${FILE_S}    ${_} =    Generate file            ${SIMPLE_OBJ_SIZE}
 
     ${OID_1} =          Put object    ${WALLET}    ${FILE_S}    ${CID}
     ${OID_2} =          Put object    ${WALLET}    ${FILE_S}    ${CID}
diff --git a/robot/testsuites/integration/services/http_gate.robot b/robot/testsuites/integration/services/http_gate.robot
index f6e70392..54ad29c5 100644
--- a/robot/testsuites/integration/services/http_gate.robot
+++ b/robot/testsuites/integration/services/http_gate.robot
@@ -6,6 +6,7 @@ Library     container.py
 Library     neofs.py
 Library     neofs_verbs.py
 Library     http_gate.py
+Library     utility_keywords.py
 
 Resource    payment_operations.robot
 Resource    setup_teardown.robot
@@ -24,11 +25,9 @@ NeoFS HTTP Gateway
                         Make Up    ${INCLUDE_SVC}
 
     ${WALLET}   ${_}     ${_} =   Prepare Wallet And Deposit
-    ${CID} =            Create container                    ${WALLET}    rule=${PLACEMENT_RULE}  basic_acl=${PUBLIC_ACL}
-    ${FILE} =           Generate file of bytes              ${SIMPLE_OBJ_SIZE}
-    ${FILE_L} =         Generate file of bytes              ${COMPLEX_OBJ_SIZE}
-    ${FILE_HASH} =      Get file hash                       ${FILE}
-    ${FILE_L_HASH} =    Get file hash                       ${FILE_L}
+    ${CID} =    Create container                    ${WALLET}    rule=${PLACEMENT_RULE}  basic_acl=${PUBLIC_ACL}
+    ${FILE}    ${HASH} =    Generate file    ${SIMPLE_OBJ_SIZE}
+    ${FILE_L}    ${L_HASH} =    Generate file    ${COMPLEX_OBJ_SIZE}
 
     ${S_OID} =          Put object                 ${WALLET}    ${FILE}      ${CID}
     ${L_OID} =          Put object                 ${WALLET}    ${FILE_L}    ${CID}
@@ -43,8 +42,8 @@ NeoFS HTTP Gateway
 
     ${PLAIN_FILE_HASH} =    Get file hash       ${GET_OBJ_S}
     ${GATE_FILE_HASH} =     Get file hash       ${FILEPATH}
-                            Should Be Equal     ${FILE_HASH}      ${PLAIN_FILE_HASH}
-                            Should Be Equal     ${FILE_HASH}      ${GATE_FILE_HASH}
+                            Should Be Equal     ${HASH}      ${PLAIN_FILE_HASH}
+                            Should Be Equal     ${HASH}      ${GATE_FILE_HASH}
 
     @{GET_NODE_LIST} =  Get nodes without object            ${WALLET}    ${CID}    ${L_OID}
     ${NODE} =           Evaluate                            random.choice($GET_NODE_LIST)    random
@@ -54,7 +53,7 @@ NeoFS HTTP Gateway
 
     ${PLAIN_FILE_HASH} =    Get file hash       ${GET_OBJ_L}
     ${GATE_FILE_HASH} =     Get file hash       ${FILEPATH}
-                            Should Be Equal     ${FILE_L_HASH}      ${PLAIN_FILE_HASH}
-                            Should Be Equal     ${FILE_L_HASH}      ${GATE_FILE_HASH}
+                            Should Be Equal     ${L_HASH}      ${PLAIN_FILE_HASH}
+                            Should Be Equal     ${L_HASH}      ${GATE_FILE_HASH}
 
     [Teardown]          Teardown    http_gate
diff --git a/robot/testsuites/integration/services/s3_gate_bucket.robot b/robot/testsuites/integration/services/s3_gate_bucket.robot
index 7434a86c..78bb753d 100644
--- a/robot/testsuites/integration/services/s3_gate_bucket.robot
+++ b/robot/testsuites/integration/services/s3_gate_bucket.robot
@@ -7,6 +7,7 @@ Library     OperatingSystem
 Library     neofs.py
 Library     s3_gate.py
 Library     contract_keywords.py
+Library     utility_keywords.py
 
 Resource    setup_teardown.robot
 Resource    payment_operations.robot
@@ -23,7 +24,7 @@ Buckets in NeoFS S3 Gateway
                                 Make Up    ${INCLUDE_SVC}
 
     ${WALLET}   ${_}    ${WIF} =        Prepare Wallet And Deposit
-    ${FILE_S3} =                        Generate file of bytes      ${COMPLEX_OBJ_SIZE}
+    ${FILE_S3}    ${_} =    Generate file    ${COMPLEX_OBJ_SIZE}
     ${_}        ${S3_OBJECT_KEY} =      Split Path                  ${FILE_S3}
 
     ${CID}
diff --git a/robot/testsuites/integration/services/s3_gate_object.robot b/robot/testsuites/integration/services/s3_gate_object.robot
index 62484b3c..d7e8f712 100644
--- a/robot/testsuites/integration/services/s3_gate_object.robot
+++ b/robot/testsuites/integration/services/s3_gate_object.robot
@@ -8,6 +8,7 @@ Library     container.py
 Library     neofs.py
 Library     s3_gate.py
 Library     contract_keywords.py
+Library     utility_keywords.py
 
 Resource    payment_operations.robot
 Resource    setup_teardown.robot
@@ -26,8 +27,7 @@ Objects in NeoFS S3 Gateway
 
     ${WALLET}   ${_}    ${_} =    Prepare Wallet And Deposit
 
-    ${FILE_S3} =                Generate file of bytes    ${COMPLEX_OBJ_SIZE}
-    ${FILE_S3_HASH} =           Get file hash             ${FILE_S3}
+    ${FILE_S3}    ${FILE_S3_HASH} =    Generate file    ${COMPLEX_OBJ_SIZE}
     ${_}    ${S3_OBJECT_KEY} =  Split Path                ${FILE_S3}
 
     ${CID}