diff --git a/tests/mocks.py b/tests/mocks.py
index 9d9c534..afb6112 100644
--- a/tests/mocks.py
+++ b/tests/mocks.py
@@ -1,3 +1,5 @@
+#    Author: Alex Savatieiev (osavatieiev@mirantis.com; a.savex@gmail.com)
+#    Copyright 2019-2022 Mirantis, Inc.
 import json
 import os
 
diff --git a/tests/test_base.py b/tests/test_base.py
index 8673a73..6e6e3e2 100644
--- a/tests/test_base.py
+++ b/tests/test_base.py
@@ -1,3 +1,5 @@
+#    Author: Alex Savatieiev (osavatieiev@mirantis.com; a.savex@gmail.com)
+#    Copyright 2019-2022 Mirantis, Inc.
 import contextlib
 import io
 import os
diff --git a/tests/test_cli.py b/tests/test_cli.py
index bad05c9..1f81376 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -1,3 +1,5 @@
+#    Author: Alex Savatieiev (osavatieiev@mirantis.com; a.savex@gmail.com)
+#    Copyright 2019-2022 Mirantis, Inc.
 import os
 
 from unittest import mock
diff --git a/tests/test_common.py b/tests/test_common.py
index 42f2988..6a36a23 100644
--- a/tests/test_common.py
+++ b/tests/test_common.py
@@ -1,3 +1,5 @@
+#    Author: Alex Savatieiev (osavatieiev@mirantis.com; a.savex@gmail.com)
+#    Copyright 2019-2022 Mirantis, Inc.
 import inspect
 import os
 import sys
diff --git a/tests/test_entrypoints.py b/tests/test_entrypoints.py
index 7c420d5..b09bab6 100644
--- a/tests/test_entrypoints.py
+++ b/tests/test_entrypoints.py
@@ -1,3 +1,5 @@
+#    Author: Alex Savatieiev (osavatieiev@mirantis.com; a.savex@gmail.com)
+#    Copyright 2019-2022 Mirantis, Inc.
 import os
 
 from tests.test_base import CfgCheckerTestBase
diff --git a/tests/test_network.py b/tests/test_network.py
index 3a1867b..0ac43df 100644
--- a/tests/test_network.py
+++ b/tests/test_network.py
@@ -1,3 +1,5 @@
+#    Author: Alex Savatieiev (osavatieiev@mirantis.com; a.savex@gmail.com)
+#    Copyright 2019-2022 Mirantis, Inc.
 import os
 import shutil
 
diff --git a/tests/test_packages.py b/tests/test_packages.py
index 6d8990d..feb20d2 100644
--- a/tests/test_packages.py
+++ b/tests/test_packages.py
@@ -1,3 +1,5 @@
+#    Author: Alex Savatieiev (osavatieiev@mirantis.com; a.savex@gmail.com)
+#    Copyright 2019-2022 Mirantis, Inc.
 import os
 
 from unittest.mock import patch
diff --git a/tests/test_reclass_comparer.py b/tests/test_reclass_comparer.py
index a1a94b3..56be5ef 100644
--- a/tests/test_reclass_comparer.py
+++ b/tests/test_reclass_comparer.py
@@ -1,3 +1,5 @@
+#    Author: Alex Savatieiev (osavatieiev@mirantis.com; a.savex@gmail.com)
+#    Copyright 2019-2022 Mirantis, Inc.
 import os
 
 from tests.mocks import _res_dir