diff --git a/pytests/test_can_merge_build.py b/pytests/test_can_merge_build.py
index b89c53e..3f728e2 100644
--- a/pytests/test_can_merge_build.py
+++ b/pytests/test_can_merge_build.py
@@ -9,44 +9,9 @@ import yaml
 from parameterized import parameterized
 
 from podman_compose import PodmanCompose
-from podman_compose import normalize_service
 
 
 class TestCanMergeBuild(unittest.TestCase):
-    @parameterized.expand([
-        ({"test": "test"}, {"test": "test"}),
-        ({"build": "."}, {"build": {"context": "."}}),
-        ({"build": "./dir-1"}, {"build": {"context": "./dir-1"}}),
-        ({"build": {"context": "./dir-1"}}, {"build": {"context": "./dir-1"}}),
-        (
-            {"build": {"dockerfile": "dockerfile-1"}},
-            {"build": {"dockerfile": "dockerfile-1"}},
-        ),
-        (
-            {"build": {"context": "./dir-1", "dockerfile": "dockerfile-1"}},
-            {"build": {"context": "./dir-1", "dockerfile": "dockerfile-1"}},
-        ),
-    ])
-    def test_simple(self, input, expected):
-        self.assertEqual(normalize_service(input), expected)
-
-    @parameterized.expand([
-        ({"test": "test"}, {"test": "test"}),
-        ({"build": "."}, {"build": {"context": "./sub_dir/."}}),
-        ({"build": "./dir-1"}, {"build": {"context": "./sub_dir/dir-1"}}),
-        ({"build": {"context": "./dir-1"}}, {"build": {"context": "./sub_dir/dir-1"}}),
-        (
-            {"build": {"dockerfile": "dockerfile-1"}},
-            {"build": {"context": "./sub_dir", "dockerfile": "dockerfile-1"}},
-        ),
-        (
-            {"build": {"context": "./dir-1", "dockerfile": "dockerfile-1"}},
-            {"build": {"context": "./sub_dir/dir-1", "dockerfile": "dockerfile-1"}},
-        ),
-    ])
-    def test_normalize_service_with_sub_dir(self, input, expected):
-        self.assertEqual(normalize_service(input, sub_dir="./sub_dir"), expected)
-
     @parameterized.expand([
         ({}, {}, {}),
         ({}, {"test": "test"}, {"test": "test"}),
diff --git a/pytests/test_can_merge_cmd_ent.py b/pytests/test_can_merge_cmd_ent.py
index 9f49a96..866f41e 100644
--- a/pytests/test_can_merge_cmd_ent.py
+++ b/pytests/test_can_merge_cmd_ent.py
@@ -10,32 +10,11 @@ import yaml
 from parameterized import parameterized
 
 from podman_compose import PodmanCompose
-from podman_compose import normalize_service
 
 test_keys = ["command", "entrypoint"]
 
 
 class TestCanMergeCmdEnt(unittest.TestCase):
-    @parameterized.expand([
-        ([], []),
-        (["sh"], ["sh"]),
-        (["sh", "-c", "date"], ["sh", "-c", "date"]),
-        ("sh", ["sh"]),
-        ("sleep infinity", ["sleep", "infinity"]),
-        (
-            "bash -c 'sleep infinity'",
-            ["bash", "-c", "sleep infinity"],
-        ),
-    ])
-    def test_command_like(self, input, expected):
-        for key in ['command', 'entrypoint']:
-            input_service = {}
-            input_service[key] = input
-
-            expected_service = {}
-            expected_service[key] = expected
-            self.assertEqual(normalize_service(input_service), expected_service)
-
     @parameterized.expand([
         ({}, {"$$$": []}, {"$$$": []}),
         ({"$$$": []}, {}, {"$$$": []}),
diff --git a/pytests/test_normalize_service.py b/pytests/test_normalize_service.py
new file mode 100644
index 0000000..c9b0e94
--- /dev/null
+++ b/pytests/test_normalize_service.py
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: GPL-2.0
+import unittest
+
+from parameterized import parameterized
+
+from podman_compose import normalize_service
+
+
+class TestNormalizeService(unittest.TestCase):
+    @parameterized.expand([
+        ({"test": "test"}, {"test": "test"}),
+        ({"build": "."}, {"build": {"context": "."}}),
+        ({"build": "./dir-1"}, {"build": {"context": "./dir-1"}}),
+        ({"build": {"context": "./dir-1"}}, {"build": {"context": "./dir-1"}}),
+        (
+            {"build": {"dockerfile": "dockerfile-1"}},
+            {"build": {"dockerfile": "dockerfile-1"}},
+        ),
+        (
+            {"build": {"context": "./dir-1", "dockerfile": "dockerfile-1"}},
+            {"build": {"context": "./dir-1", "dockerfile": "dockerfile-1"}},
+        ),
+    ])
+    def test_simple(self, input, expected):
+        self.assertEqual(normalize_service(input), expected)
+
+    @parameterized.expand([
+        ({"test": "test"}, {"test": "test"}),
+        ({"build": "."}, {"build": {"context": "./sub_dir/."}}),
+        ({"build": "./dir-1"}, {"build": {"context": "./sub_dir/dir-1"}}),
+        ({"build": {"context": "./dir-1"}}, {"build": {"context": "./sub_dir/dir-1"}}),
+        (
+            {"build": {"dockerfile": "dockerfile-1"}},
+            {"build": {"context": "./sub_dir", "dockerfile": "dockerfile-1"}},
+        ),
+        (
+            {"build": {"context": "./dir-1", "dockerfile": "dockerfile-1"}},
+            {"build": {"context": "./sub_dir/dir-1", "dockerfile": "dockerfile-1"}},
+        ),
+    ])
+    def test_normalize_service_with_sub_dir(self, input, expected):
+        self.assertEqual(normalize_service(input, sub_dir="./sub_dir"), expected)
+
+    @parameterized.expand([
+        ([], []),
+        (["sh"], ["sh"]),
+        (["sh", "-c", "date"], ["sh", "-c", "date"]),
+        ("sh", ["sh"]),
+        ("sleep infinity", ["sleep", "infinity"]),
+        (
+            "bash -c 'sleep infinity'",
+            ["bash", "-c", "sleep infinity"],
+        ),
+    ])
+    def test_command_like(self, input, expected):
+        for key in ['command', 'entrypoint']:
+            input_service = {}
+            input_service[key] = input
+
+            expected_service = {}
+            expected_service[key] = expected
+            self.assertEqual(normalize_service(input_service), expected_service)