diff --git a/tests/unit/auth/test_k8s.py b/tests/unit/auth/test_k8s.py
index 4b121fa6..e7e6b477 100644
--- a/tests/unit/auth/test_k8s.py
+++ b/tests/unit/auth/test_k8s.py
@@ -1,5 +1,7 @@
 """Unit tests for auth/k8s module."""
 
+# pylint: disable=too-many-arguments,too-many-positional-arguments,too-few-public-methods,protected-access
+
 import os
 
 import pytest
diff --git a/tests/unit/utils/test_checks.py b/tests/unit/utils/test_checks.py
index e01b46fc..e78e5b9f 100644
--- a/tests/unit/utils/test_checks.py
+++ b/tests/unit/utils/test_checks.py
@@ -1,16 +1,18 @@
-import os
-import pytest
+"""Unit tests for functions defined in utils/checks module."""
 
+import os
 from unittest.mock import patch
 
+import pytest
+
 from utils import checks
 
 
-@pytest.fixture
-def input_file(tmp_path):
+@pytest.fixture(name="input_file")
+def input_file_fixture(tmp_path):
     """Create file manually using the tmp_path fixture."""
     filename = os.path.join(tmp_path, "mydoc.csv")
-    with open(filename, "wt") as fout:
+    with open(filename, "wt", encoding="utf-8") as fout:
         fout.write("some content!")
     return filename
 
diff --git a/tests/unit/utils/test_common.py b/tests/unit/utils/test_common.py
index 0ca387f2..0b34e0de 100644
--- a/tests/unit/utils/test_common.py
+++ b/tests/unit/utils/test_common.py
@@ -1,9 +1,10 @@
 """Test module for utils/common.py."""
 
-import pytest
 from unittest.mock import Mock, AsyncMock
 from logging import Logger
 
+import pytest
+
 from utils.common import (
     retrieve_user_id,
     register_mcp_servers_async,
diff --git a/tests/unit/utils/test_suid.py b/tests/unit/utils/test_suid.py
index b0e33e8c..b9c44088 100644
--- a/tests/unit/utils/test_suid.py
+++ b/tests/unit/utils/test_suid.py
@@ -1,7 +1,11 @@
+"""Unit tests for functions defined in utils.suid module."""
+
 from utils import suid
 
 
 class TestSUID:
+    """Unit tests for functions defined in utils.suid module."""
+
     def test_get_suid(self):
         """Test that get_suid generates a valid UUID."""
         suid_value = suid.get_suid()
diff --git a/tests/unit/utils/test_types.py b/tests/unit/utils/test_types.py
index 70f284de..441651d0 100644
--- a/tests/unit/utils/test_types.py
+++ b/tests/unit/utils/test_types.py
@@ -1,4 +1,4 @@
-"""Test module for utils/types.py."""
+"""Unit tests for functionns defined in utils/types.py."""
 
 from unittest.mock import Mock
 
@@ -6,6 +6,8 @@
 
 
 class TestGraniteToolParser:
+    """Unit tests for functionns defined in utils/types.py."""
+
     def test_get_tool_parser_when_model_is_is_not_granite(self):
         """Test that the tool_parser is None when model_id is not a granite model."""
         assert (
@@ -29,12 +31,12 @@ def test_get_tool_calls_from_completion_message_when_none(self):
         assert tool_parser.get_tool_calls(None) == [], "get_tool_calls should return []"
 
     def test_get_tool_calls_from_completion_message_when_not_none(self):
-        """Test that get_tool_calls returns an empty array when CompletionMessage has no tool_calls."""
+        """Test that get_tool_calls returns an empty array when CompletionMessage has no tool_calls."""  # pylint: disable=line-too-long
         tool_parser = GraniteToolParser.get_parser("granite-3.3-8b-instruct")
         completion_message = Mock()
         completion_message.tool_calls = []
-        assert (
-            tool_parser.get_tool_calls(completion_message) == []
+        assert not tool_parser.get_tool_calls(
+            completion_message
         ), "get_tool_calls should return []"
 
     def test_get_tool_calls_from_completion_message_when_message_has_tool_calls(self):