diff --git a/tests/unit/test_container_to_build_args.py b/tests/unit/test_container_to_build_args.py
new file mode 100644
index 0000000..61ddf6e
--- /dev/null
+++ b/tests/unit/test_container_to_build_args.py
@@ -0,0 +1,128 @@
+# SPDX-License-Identifier: GPL-2.0
+
+import unittest
+from unittest import mock
+
+from podman_compose import container_to_build_args
+
+
+def create_compose_mock(project_name='test_project_name'):
+    compose = mock.Mock()
+    compose.project_name = project_name
+    compose.dirname = 'test_dirname'
+    compose.container_names_by_service.get = mock.Mock(return_value=None)
+    compose.prefer_volume_over_mount = False
+    compose.default_net = None
+    compose.networks = {}
+    compose.x_podman = {}
+    return compose
+
+
+def get_minimal_container():
+    return {
+        'name': 'project_name_service_name1',
+        'service_name': 'service_name',
+        'image': 'new-image',
+        'build': {},
+    }
+
+
+def get_minimal_args():
+    args = mock.Mock()
+    args.build_arg = []
+    return args
+
+
+class TestContainerToBuildArgs(unittest.TestCase):
+    def test_minimal(self):
+        c = create_compose_mock()
+
+        cnt = get_minimal_container()
+        args = get_minimal_args()
+
+        args = container_to_build_args(c, cnt, args, lambda path: True)
+        self.assertEqual(
+            args,
+            [
+                '-f',
+                './Containerfile',
+                '-t',
+                'new-image',
+                '--no-cache',
+                '--pull-always',
+                '.',
+            ],
+        )
+
+    def test_platform(self):
+        c = create_compose_mock()
+
+        cnt = get_minimal_container()
+        cnt['platform'] = 'linux/amd64'
+        args = get_minimal_args()
+
+        args = container_to_build_args(c, cnt, args, lambda path: True)
+        self.assertEqual(
+            args,
+            [
+                '-f',
+                './Containerfile',
+                '-t',
+                'new-image',
+                '--platform',
+                'linux/amd64',
+                '--no-cache',
+                '--pull-always',
+                '.',
+            ],
+        )
+
+    def test_tags(self):
+        c = create_compose_mock()
+
+        cnt = get_minimal_container()
+        cnt['build']['tags'] = ['some-tag1', 'some-tag2:2']
+        args = get_minimal_args()
+
+        args = container_to_build_args(c, cnt, args, lambda path: True)
+        self.assertEqual(
+            args,
+            [
+                '-f',
+                './Containerfile',
+                '-t',
+                'new-image',
+                '-t',
+                'some-tag1',
+                '-t',
+                'some-tag2:2',
+                '--no-cache',
+                '--pull-always',
+                '.',
+            ],
+        )
+
+    def test_labels(self):
+        c = create_compose_mock()
+
+        cnt = get_minimal_container()
+        cnt['build']['labels'] = ['some-label1', 'some-label2.2']
+        args = get_minimal_args()
+
+        args = container_to_build_args(c, cnt, args, lambda path: True)
+        self.assertEqual(
+            args,
+            [
+                '-f',
+                './Containerfile',
+                '-t',
+                'new-image',
+                '--label',
+                'some-label1',
+                '--label',
+                'some-label2.2',
+                '--no-cache',
+                '--pull-always',
+                '.',
+            ],
+        )