diff --git a/watcher/tests/common/test_utils.py b/watcher/tests/common/test_utils.py
index 155506bcd..aae20a38d 100644
--- a/watcher/tests/common/test_utils.py
+++ b/watcher/tests/common/test_utils.py
@@ -1,52 +1,52 @@
-# Copyright 2023 Cloudbase Solutions
-# All Rights Reserved.
-#
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-
-import asyncio
-import time
-from unittest import mock
-
-from watcher.common import utils
-from watcher.tests import base
-
-
-class TestCommonUtils(base.TestCase):
-    async def test_coro(self, sleep=0, raise_exc=None):
-        time.sleep(sleep)
-        if raise_exc:
-            raise raise_exc
-        return mock.sentinel.ret_val
-
-    def test_async_compat(self):
-        ret_val = utils.async_compat_call(self.test_coro)
-        self.assertEqual(mock.sentinel.ret_val, ret_val)
-
-    def test_async_compat_exc(self):
-        self.assertRaises(
-            IOError,
-            utils.async_compat_call,
-            self.test_coro,
-            raise_exc=IOError('fake error'))
-
-    def test_async_compat_timeout(self):
-        # Timeout not reached.
-        ret_val = utils.async_compat_call(self.test_coro, timeout=10)
-        self.assertEqual(mock.sentinel.ret_val, ret_val)
-
-        # Timeout reached.
-        self.assertRaises(
-            asyncio.TimeoutError,
-            utils.async_compat_call,
-            self.test_coro,
-            sleep=0.5, timeout=0.1)
+# Copyright 2023 Cloudbase Solutions
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import asyncio
+import time
+from unittest import mock
+
+from watcher.common import utils
+from watcher.tests import base
+
+
+class TestCommonUtils(base.TestCase):
+    async def test_coro(self, sleep=0, raise_exc=None):
+        time.sleep(sleep)
+        if raise_exc:
+            raise raise_exc
+        return mock.sentinel.ret_val
+
+    def test_async_compat(self):
+        ret_val = utils.async_compat_call(self.test_coro)
+        self.assertEqual(mock.sentinel.ret_val, ret_val)
+
+    def test_async_compat_exc(self):
+        self.assertRaises(
+            IOError,
+            utils.async_compat_call,
+            self.test_coro,
+            raise_exc=IOError('fake error'))
+
+    def test_async_compat_timeout(self):
+        # Timeout not reached.
+        ret_val = utils.async_compat_call(self.test_coro, timeout=10)
+        self.assertEqual(mock.sentinel.ret_val, ret_val)
+
+        # Timeout reached.
+        self.assertRaises(
+            asyncio.TimeoutError,
+            utils.async_compat_call,
+            self.test_coro,
+            sleep=0.5, timeout=0.1)