[mod] add test to check compat.py module

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

tests/unit/test_toml.py

@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: AGPL-3.0-or-later
+# pylint: disable=missing-module-docstring
+
+from tests import SearxTestCase
+from searx import compat
+from searx.favicons.config import DEFAULT_CFG_TOML_PATH
+
+
+class CompatTest(SearxTestCase):  # pylint: disable=missing-class-docstring
+
+    def test_toml(self):
+        with DEFAULT_CFG_TOML_PATH.open("rb") as f:
+            _ = compat.tomllib.load(f)