diff --git a/pytest_tests/helpers/file_helper.py b/pytest_tests/helpers/file_helper.py
index 1f83fd6..324c307 100644
--- a/pytest_tests/helpers/file_helper.py
+++ b/pytest_tests/helpers/file_helper.py
@@ -2,7 +2,7 @@ import hashlib
 import logging
 import os
 import uuid
-from typing import Optional
+from typing import Any, Optional
 
 import allure
 from common import ASSETS_DIR, SIMPLE_OBJ_SIZE
@@ -27,6 +27,38 @@ def generate_file(size: int = SIMPLE_OBJ_SIZE) -> str:
     return file_path
 
 
+def generate_file_with_content(
+    file_path: Optional[str] = None,
+    content: Optional[str] = None,
+) -> str:
+    """Creates a new file with specified content.
+
+    Args:
+        file_path: Path to the file that should be created. If not specified, then random file
+            path will be generated.
+        content: Content that should be stored in the file. If not specified, then random binary
+            content will be generated.
+
+    Returns:
+        Path to the generated file.
+    """
+    mode = "w+"
+    if content is None:
+        content = os.urandom(SIMPLE_OBJ_SIZE)
+        mode = "wb"
+
+    if not file_path:
+        file_path = f"{os.getcwd()}/{ASSETS_DIR}/{str(uuid.uuid4())}"
+    else:
+        if not os.path.exists(os.path.dirname(file_path)):
+            os.makedirs(os.path.dirname(file_path))
+
+    with open(file_path, mode) as file:
+        file.write(content)
+
+    return file_path
+
+
 @allure.step("Get File Hash")
 def get_file_hash(file_path: str, len: Optional[int] = None) -> str:
     """Generates hash for the specified file.
@@ -65,3 +97,54 @@ def concat_files(file_paths: list, resulting_file_path: Optional[str] = None) ->
             with open(file, "rb") as part_file:
                 f.write(part_file.read())
     return resulting_file_path
+
+
+def split_file(file_path: str, parts: int) -> list[str]:
+    """Splits specified file into several specified number of parts.
+
+    Each part is saved under name `{original_file}_part_{i}`.
+
+    Args:
+        file_path: Path to the file that should be split.
+        parts: Number of parts the file should be split into.
+
+    Returns:
+        Paths to the part files.
+    """
+    with open(file_path, "rb") as file:
+        content = file.read()
+
+    content_size = len(content)
+    chunk_size = int((content_size + parts) / parts)
+
+    part_id = 1
+    part_file_paths = []
+    for content_offset in range(0, content_size + 1, chunk_size):
+        part_file_name = f"{file_path}_part_{part_id}"
+        part_file_paths.append(part_file_name)
+        with open(part_file_name, "wb") as out_file:
+            out_file.write(content[content_offset : content_offset + chunk_size])
+        part_id += 1
+
+    return part_file_paths
+
+
+def get_file_content(file_path: str, content_len: Optional[int] = None, mode: str = "r") -> Any:
+    """Returns content of specified file.
+
+    Args:
+        file_path: Path to the file.
+        content_len: Limit of content length. If None, then entire file content is returned;
+            otherwise only the first content_len bytes of the content are returned.
+        mode: Mode of opening the file.
+
+    Returns:
+        Content of the specified file.
+    """
+    with open(file_path, mode) as file:
+        if content_len:
+            content = file.read(content_len)
+        else:
+            content = file.read()
+
+    return content
diff --git a/pytest_tests/helpers/utility.py b/pytest_tests/helpers/utility.py
index 41f134b..69bc3ad 100644
--- a/pytest_tests/helpers/utility.py
+++ b/pytest_tests/helpers/utility.py
@@ -1,64 +1,33 @@
-import os
 import time
-import uuid
 
 import allure
-from common import ASSETS_DIR, SIMPLE_OBJ_SIZE, STORAGE_GC_TIME
-
-
-def create_file_with_content(file_path: str = None, content: str = None) -> str:
-    mode = "w+"
-    if not content:
-        content = os.urandom(SIMPLE_OBJ_SIZE)
-        mode = "wb"
-
-    if not file_path:
-        file_path = f"{os.getcwd()}/{ASSETS_DIR}/{str(uuid.uuid4())}"
-    else:
-        if not os.path.exists(os.path.dirname(file_path)):
-            os.makedirs(os.path.dirname(file_path))
-
-    with open(file_path, mode) as out_file:
-        out_file.write(content)
-
-    return file_path
-
-
-def get_file_content(file_path: str, content_len: int = None, mode="r") -> str:
-    with open(file_path, mode) as out_file:
-        if content_len:
-            content = out_file.read(content_len)
-        else:
-            content = out_file.read()
-
-    return content
-
-
-def split_file(file_path: str, parts: int) -> list[str]:
-    files = []
-    with open(file_path, "rb") as in_file:
-        data = in_file.read()
-
-    content_size = len(data)
-
-    chunk_size = int((content_size + parts) / parts)
-    part_id = 1
-    for start_position in range(0, content_size + 1, chunk_size):
-        part_file_name = f"{file_path}_part_{part_id}"
-        files.append(part_file_name)
-        with open(part_file_name, "wb") as out_file:
-            out_file.write(data[start_position : start_position + chunk_size])
-        part_id += 1
-
-    return files
+from common import STORAGE_GC_TIME
 
 
 def parse_time(value: str) -> int:
-    if value.endswith("s"):
-        return int(value[:-1])
+    """Converts time interval in text form into time interval as number of seconds.
 
-    if value.endswith("m"):
-        return int(value[:-1]) * 60
+    Args:
+        value: time interval as text.
+
+    Returns:
+        Number of seconds in the parsed time interval.
+    """
+    value = value.lower()
+
+    for suffix in ["s", "sec"]:
+        if value.endswith(suffix):
+            return int(value[: -len(suffix)])
+
+    for suffix in ["m", "min"]:
+        if value.endswith(suffix):
+            return int(value[: -len(suffix)]) * 60
+
+    for suffix in ["h", "hr", "hour"]:
+        if value.endswith(suffix):
+            return int(value[: -len(suffix)]) * 60 * 60
+
+    raise ValueError(f"Unknown units in time value '{value}'")
 
 
 def placement_policy_from_container(container_info: str) -> str:
@@ -88,7 +57,6 @@ def placement_policy_from_container(container_info: str) -> str:
 
 
 def wait_for_gc_pass_on_storage_nodes() -> None:
-    # We add 15 seconds to allow some time for GC process itself
     wait_time = parse_time(STORAGE_GC_TIME)
     with allure.step(f"Wait {wait_time}s until GC completes on storage nodes"):
         time.sleep(wait_time)
diff --git a/pytest_tests/testsuites/object/test_object_api.py b/pytest_tests/testsuites/object/test_object_api.py
index 6d8b627..ffdfb36 100644
--- a/pytest_tests/testsuites/object/test_object_api.py
+++ b/pytest_tests/testsuites/object/test_object_api.py
@@ -6,7 +6,7 @@ import pytest
 from common import COMPLEX_OBJ_SIZE, SIMPLE_OBJ_SIZE
 from container import create_container
 from epoch import get_epoch, tick_epoch
-from file_helper import generate_file, get_file_hash
+from file_helper import generate_file, get_file_content, get_file_hash
 from grpc_responses import OBJECT_ALREADY_REMOVED, OBJECT_NOT_FOUND, error_matches_status
 from python_keywords.neofs_verbs import (
     delete_object,
@@ -19,7 +19,7 @@ from python_keywords.neofs_verbs import (
 )
 from python_keywords.storage_policy import get_complex_object_copies, get_simple_object_copies
 from tombstone import verify_head_tombstone
-from utility import get_file_content, wait_for_gc_pass_on_storage_nodes
+from utility import wait_for_gc_pass_on_storage_nodes
 
 logger = logging.getLogger("NeoLogger")
 
diff --git a/pytest_tests/testsuites/services/s3_gate/test_s3_gate.py b/pytest_tests/testsuites/services/s3_gate/test_s3_gate.py
index 8fa2870..332fcc3 100644
--- a/pytest_tests/testsuites/services/s3_gate/test_s3_gate.py
+++ b/pytest_tests/testsuites/services/s3_gate/test_s3_gate.py
@@ -6,7 +6,13 @@ import allure
 import pytest
 from common import ASSETS_DIR, COMPLEX_OBJ_SIZE, SIMPLE_OBJ_SIZE
 from epoch import tick_epoch
-from file_helper import generate_file, get_file_hash
+from file_helper import (
+    generate_file,
+    generate_file_with_content,
+    get_file_content,
+    get_file_hash,
+    split_file,
+)
 from s3_helper import (
     check_objects_in_bucket,
     check_tags_by_bucket,
@@ -14,7 +20,6 @@ from s3_helper import (
     set_bucket_versioning,
     try_to_get_objects_and_expect_error,
 )
-from utility import create_file_with_content, get_file_content, split_file
 
 from steps import s3_gate_bucket, s3_gate_object
 from steps.aws_cli_client import AwsCliClient
@@ -171,8 +176,8 @@ class TestS3Gate(TestS3GateBase):
         if not isinstance(self.s3_client, AwsCliClient):
             pytest.skip("This test is not supported with boto3 client")
 
-        create_file_with_content(file_path=file_path_1)
-        create_file_with_content(file_path=file_path_2)
+        generate_file_with_content(file_path=file_path_1)
+        generate_file_with_content(file_path=file_path_2)
 
         self.s3_client.sync(bucket_name=bucket, dir_path=os.path.dirname(file_path_1))
 
@@ -182,7 +187,7 @@ class TestS3Gate(TestS3GateBase):
         with allure.step("Check these are the same objects"):
             assert set(key_to_path.keys()) == set(
                 objects
-            ), f"Expected all abjects saved. Got {objects}"
+            ), f"Expected all objects saved. Got {objects}"
             for obj_key in objects:
                 got_object = s3_gate_object.get_object_s3(self.s3_client, bucket, obj_key)
                 assert get_file_hash(got_object) == get_file_hash(
@@ -196,13 +201,13 @@ class TestS3Gate(TestS3GateBase):
         """
         version_1_content = "Version 1"
         version_2_content = "Version 2"
-        file_name_simple = create_file_with_content(content=version_1_content)
+        file_name_simple = generate_file_with_content(content=version_1_content)
         obj_key = os.path.basename(file_name_simple)
         set_bucket_versioning(self.s3_client, bucket, s3_gate_bucket.VersioningStatus.ENABLED)
 
         with allure.step("Put several versions of object into bucket"):
             version_id_1 = s3_gate_object.put_object_s3(self.s3_client, bucket, file_name_simple)
-            create_file_with_content(file_path=file_name_simple, content=version_2_content)
+            generate_file_with_content(file_path=file_name_simple, content=version_2_content)
             version_id_2 = s3_gate_object.put_object_s3(self.s3_client, bucket, file_name_simple)
 
         with allure.step("Check bucket shows all versions"):
diff --git a/pytest_tests/testsuites/services/s3_gate/test_s3_object.py b/pytest_tests/testsuites/services/s3_gate/test_s3_object.py
index c2259f5..2cc53d0 100644
--- a/pytest_tests/testsuites/services/s3_gate/test_s3_object.py
+++ b/pytest_tests/testsuites/services/s3_gate/test_s3_object.py
@@ -7,10 +7,9 @@ import allure
 import pytest
 from common import ASSETS_DIR, COMPLEX_OBJ_SIZE, FREE_STORAGE, SIMPLE_OBJ_SIZE
 from data_formatters import get_wallet_public_key
-from file_helper import concat_files, generate_file, get_file_hash
+from file_helper import concat_files, generate_file, generate_file_with_content, get_file_hash
 from python_keywords.payment_neogo import neofs_deposit, transfer_mainnet_gas
 from s3_helper import check_objects_in_bucket, set_bucket_versioning
-from utility import create_file_with_content
 from wallet import init_wallet
 
 from steps import s3_gate_bucket, s3_gate_object
@@ -79,7 +78,7 @@ class TestS3GateObject(TestS3GateBase):
     @allure.title("Test S3: Copy version of object")
     def test_s3_copy_version_object(self):
         version_1_content = "Version 1"
-        file_name_simple = create_file_with_content(content=version_1_content)
+        file_name_simple = generate_file_with_content(content=version_1_content)
         obj_key = os.path.basename(file_name_simple)
 
         bucket_1 = s3_gate_bucket.create_bucket_s3(self.s3_client)
@@ -116,7 +115,7 @@ class TestS3GateObject(TestS3GateBase):
     @allure.title("Test S3: Checking copy with acl")
     def test_s3_copy_acl(self):
         version_1_content = "Version 1"
-        file_name_simple = create_file_with_content(content=version_1_content)
+        file_name_simple = generate_file_with_content(content=version_1_content)
         obj_key = os.path.basename(file_name_simple)
 
         bucket_1 = s3_gate_bucket.create_bucket_s3(self.s3_client)
@@ -246,7 +245,7 @@ class TestS3GateObject(TestS3GateBase):
     def test_s3_delete_versioning(self):
         version_1_content = "Version 1"
         version_2_content = "Version 2"
-        file_name_simple = create_file_with_content(content=version_1_content)
+        file_name_simple = generate_file_with_content(content=version_1_content)
 
         obj_key = os.path.basename(file_name_simple)
         bucket = s3_gate_bucket.create_bucket_s3(self.s3_client)
@@ -254,7 +253,7 @@ class TestS3GateObject(TestS3GateBase):
 
         with allure.step("Put several versions of object into bucket"):
             version_id_1 = s3_gate_object.put_object_s3(self.s3_client, bucket, file_name_simple)
-            file_name_1 = create_file_with_content(
+            file_name_1 = generate_file_with_content(
                 file_path=file_name_simple, content=version_2_content
             )
             version_id_2 = s3_gate_object.put_object_s3(self.s3_client, bucket, file_name_1)
@@ -308,7 +307,7 @@ class TestS3GateObject(TestS3GateBase):
         version_2_content = "Version 2"
         version_3_content = "Version 3"
         version_4_content = "Version 4"
-        file_name_1 = create_file_with_content(content=version_1_content)
+        file_name_1 = generate_file_with_content(content=version_1_content)
 
         obj_key = os.path.basename(file_name_1)
         bucket = s3_gate_bucket.create_bucket_s3(self.s3_client)
@@ -316,11 +315,17 @@ class TestS3GateObject(TestS3GateBase):
 
         with allure.step("Put several versions of object into bucket"):
             version_id_1 = s3_gate_object.put_object_s3(self.s3_client, bucket, file_name_1)
-            file_name_2 = create_file_with_content(file_path=file_name_1, content=version_2_content)
+            file_name_2 = generate_file_with_content(
+                file_path=file_name_1, content=version_2_content
+            )
             version_id_2 = s3_gate_object.put_object_s3(self.s3_client, bucket, file_name_2)
-            file_name_3 = create_file_with_content(file_path=file_name_1, content=version_3_content)
+            file_name_3 = generate_file_with_content(
+                file_path=file_name_1, content=version_3_content
+            )
             version_id_3 = s3_gate_object.put_object_s3(self.s3_client, bucket, file_name_3)
-            file_name_4 = create_file_with_content(file_path=file_name_1, content=version_4_content)
+            file_name_4 = generate_file_with_content(
+                file_path=file_name_1, content=version_4_content
+            )
             version_id_4 = s3_gate_object.put_object_s3(self.s3_client, bucket, file_name_4)
             version_ids = {version_id_1, version_id_2, version_id_3, version_id_4}
 
@@ -352,14 +357,14 @@ class TestS3GateObject(TestS3GateBase):
     def test_s3_get_versioning(self):
         version_1_content = "Version 1"
         version_2_content = "Version 2"
-        file_name_simple = create_file_with_content(content=version_1_content)
+        file_name_simple = generate_file_with_content(content=version_1_content)
 
         obj_key = os.path.basename(file_name_simple)
         bucket = s3_gate_bucket.create_bucket_s3(self.s3_client)
         set_bucket_versioning(self.s3_client, bucket, s3_gate_bucket.VersioningStatus.ENABLED)
         with allure.step("Put several versions of object into bucket"):
             version_id_1 = s3_gate_object.put_object_s3(self.s3_client, bucket, file_name_simple)
-            file_name_1 = create_file_with_content(
+            file_name_1 = generate_file_with_content(
                 file_path=file_name_simple, content=version_2_content
             )
             version_id_2 = s3_gate_object.put_object_s3(self.s3_client, bucket, file_name_1)
@@ -397,7 +402,7 @@ class TestS3GateObject(TestS3GateBase):
         set_bucket_versioning(self.s3_client, bucket, s3_gate_bucket.VersioningStatus.ENABLED)
         with allure.step("Put several versions of object into bucket"):
             version_id_1 = s3_gate_object.put_object_s3(self.s3_client, bucket, file_path)
-            file_name_1 = create_file_with_content(file_path=file_path)
+            file_name_1 = generate_file_with_content(file_path=file_path)
             version_id_2 = s3_gate_object.put_object_s3(self.s3_client, bucket, file_name_1)
 
         with allure.step("Get first version of object"):
@@ -479,7 +484,7 @@ class TestS3GateObject(TestS3GateBase):
             version_id_1 = s3_gate_object.put_object_s3(
                 self.s3_client, bucket, file_path, Metadata=object_metadata
             )
-            file_name_1 = create_file_with_content(file_path=file_path)
+            file_name_1 = generate_file_with_content(file_path=file_path)
             version_id_2 = s3_gate_object.put_object_s3(self.s3_client, bucket, file_name_1)
 
         with allure.step("Get head of first version of object"):
@@ -573,7 +578,7 @@ class TestS3GateObject(TestS3GateBase):
             ], "Tags must be the same"
 
         with allure.step("Rewrite file into bucket"):
-            file_path_2 = create_file_with_content(file_path=file_path_1)
+            file_path_2 = generate_file_with_content(file_path=file_path_1)
             s3_gate_object.put_object_s3(
                 self.s3_client, bucket, file_path_2, Metadata=object_2_metadata, Tagging=tag_2
             )
@@ -608,7 +613,7 @@ class TestS3GateObject(TestS3GateBase):
             ], "Tags must be the same"
 
         with allure.step("Put new version of file into bucket"):
-            file_path_4 = create_file_with_content(file_path=file_path_3)
+            file_path_4 = generate_file_with_content(file_path=file_path_3)
             version_id_2 = s3_gate_object.put_object_s3(self.s3_client, bucket, file_path_4)
             versions = s3_gate_object.list_objects_versions_s3(self.s3_client, bucket)
             obj_versions = {
@@ -685,7 +690,7 @@ class TestS3GateObject(TestS3GateBase):
             assert get_file_hash(file_path_1) == get_file_hash(object_1), "Hashes must be the same"
 
         with allure.step("Put object with acl public-read"):
-            file_path_2 = create_file_with_content(file_path=file_path_1)
+            file_path_2 = generate_file_with_content(file_path=file_path_1)
             s3_gate_object.put_object_s3(self.s3_client, bucket, file_path_2, ACL="public-read")
             obj_acl = s3_gate_object.get_object_acl_s3(self.s3_client, bucket, file_name)
             obj_permission = [permission.get("Permission") for permission in obj_acl]
@@ -697,7 +702,7 @@ class TestS3GateObject(TestS3GateBase):
             assert get_file_hash(file_path_2) == get_file_hash(object_2), "Hashes must be the same"
 
         with allure.step("Put object with acl public-read-write"):
-            file_path_3 = create_file_with_content(file_path=file_path_1)
+            file_path_3 = generate_file_with_content(file_path=file_path_1)
             s3_gate_object.put_object_s3(
                 self.s3_client, bucket, file_path_3, ACL="public-read-write"
             )
@@ -711,7 +716,7 @@ class TestS3GateObject(TestS3GateBase):
             assert get_file_hash(file_path_3) == get_file_hash(object_3), "Hashes must be the same"
 
         with allure.step("Put object with acl authenticated-read"):
-            file_path_4 = create_file_with_content(file_path=file_path_1)
+            file_path_4 = generate_file_with_content(file_path=file_path_1)
             s3_gate_object.put_object_s3(
                 self.s3_client, bucket, file_path_4, ACL="authenticated-read"
             )
@@ -729,7 +734,7 @@ class TestS3GateObject(TestS3GateBase):
         file_name_5 = self.object_key_from_file_path(file_path_5)
 
         with allure.step("Put object with --grant-full-control id=mycanonicaluserid"):
-            file_path_6 = create_file_with_content(file_path=file_path_5)
+            file_path_6 = generate_file_with_content(file_path=file_path_5)
             s3_gate_object.put_object_s3(
                 self.s3_client,
                 bucket,
@@ -748,7 +753,7 @@ class TestS3GateObject(TestS3GateBase):
         with allure.step(
             "Put object with --grant-read uri=http://acs.amazonaws.com/groups/global/AllUsers"
         ):
-            file_path_7 = create_file_with_content(file_path=file_path_5)
+            file_path_7 = generate_file_with_content(file_path=file_path_5)
             s3_gate_object.put_object_s3(
                 self.s3_client,
                 bucket,
@@ -801,7 +806,7 @@ class TestS3GateObject(TestS3GateBase):
             "Put new version of object with [--object-lock-mode COMPLIANCE] и [--object-lock-retain-until-date +3days]"
         ):
             date_obj = datetime.utcnow() + timedelta(days=2)
-            file_name_1 = create_file_with_content(file_path=file_path_1)
+            file_name_1 = generate_file_with_content(file_path=file_path_1)
             s3_gate_object.put_object_s3(
                 self.s3_client,
                 bucket,
@@ -826,7 +831,7 @@ class TestS3GateObject(TestS3GateBase):
             "Put new version of object with [--object-lock-mode COMPLIANCE] и [--object-lock-retain-until-date +2days]"
         ):
             date_obj = datetime.utcnow() + timedelta(days=3)
-            file_name_1 = create_file_with_content(file_path=file_path_1)
+            file_name_1 = generate_file_with_content(file_path=file_path_1)
             s3_gate_object.put_object_s3(
                 self.s3_client,
                 bucket,
@@ -884,8 +889,8 @@ class TestS3GateObject(TestS3GateBase):
         if not isinstance(self.s3_client, AwsCliClient):
             pytest.skip("This test is not supported with boto3 client")
 
-        create_file_with_content(file_path=file_path_1)
-        create_file_with_content(file_path=file_path_2)
+        generate_file_with_content(file_path=file_path_1)
+        generate_file_with_content(file_path=file_path_2)
         bucket = s3_gate_bucket.create_bucket_s3(self.s3_client)
         set_bucket_versioning(self.s3_client, bucket, s3_gate_bucket.VersioningStatus.ENABLED)
         if sync_type == "sync":
diff --git a/pytest_tests/testsuites/services/s3_gate/test_s3_versioning.py b/pytest_tests/testsuites/services/s3_gate/test_s3_versioning.py
index 2dba42c..0ba3c55 100644
--- a/pytest_tests/testsuites/services/s3_gate/test_s3_versioning.py
+++ b/pytest_tests/testsuites/services/s3_gate/test_s3_versioning.py
@@ -2,9 +2,8 @@ import os
 
 import allure
 import pytest
-from file_helper import generate_file
+from file_helper import generate_file, generate_file_with_content
 from s3_helper import set_bucket_versioning
-from utility import create_file_with_content
 
 from steps import s3_gate_bucket, s3_gate_object
 from steps.s3_gate_base import TestS3GateBase
@@ -54,7 +53,7 @@ class TestS3GateVersioning(TestS3GateBase):
 
         with allure.step("Put several versions of object into bucket"):
             version_id_1 = s3_gate_object.put_object_s3(self.s3_client, bucket, file_path)
-            file_name_1 = create_file_with_content(file_path=file_path)
+            file_name_1 = generate_file_with_content(file_path=file_path)
             version_id_2 = s3_gate_object.put_object_s3(self.s3_client, bucket, file_name_1)
 
         with allure.step("Check bucket shows all versions"):