Add more test cases

1 files changed, 20 insertions, 20 deletions

diff --git a/tests/unit/test_utils_misc.py b/tests/unit/test_utils_misc.py
index a00d5461f..b1f199bfc 100644
--- a/tests/unit/test_utils_misc.py
+++ b/tests/unit/test_utils_misc.py
@@ -1,25 +1,25 @@
-from typing import Dict, List, Union
+from typing import Dict, List, Optional, Union
+
+import pytest
 
 from pip._internal.utils.misc import merge_config_settings
 
 
-def test_merge_config_settings() -> None:
-    reqs: Dict[str, Union[str, List[str]]] = {
-        "foo": "bar",
-        "bar": "foo",
-        "foobar": ["bar"],
-        "baz": ["foo"],
-    }
-    cli: Dict[str, Union[str, List[str]]] = {
-        "foo": ["baz"],
-        "bar": "bar",
-        "foobar": ["baz"],
-        "baz": "bar",
-    }
-    expected = {
-        "foo": ["bar", "baz"],
-        "bar": ["foo", "bar"],
-        "foobar": ["bar", "baz"],
-        "baz": ["foo", "bar"],
-    }
+@pytest.mark.parametrize(
+    "reqs, cli, expected",
+    [
+        ({"foo": "bar"}, {"foo": ["baz"]}, {"foo": ["bar", "baz"]}),
+        ({"foo": "bar"}, {"foo": "baz"}, {"foo": ["bar", "baz"]}),
+        ({"foo": ["bar"]}, {"foo": ["baz"]}, {"foo": ["bar", "baz"]}),
+        ({"foo": ["bar"]}, {"foo": "baz"}, {"foo": ["bar", "baz"]}),
+        ({"foo": "bar"}, {"foo": ["baz"]}, {"foo": ["bar", "baz"]}),
+        ({"foo": "bar"}, None, {"foo": "bar"}),
+        (None, {"foo": ["bar"]}, {"foo": ["bar"]}),
+    ],
+)
+def test_merge_config_settings(
+    reqs: Optional[Dict[str, Union[str, List[str]]]],
+    cli: Optional[Dict[str, Union[str, List[str]]]],
+    expected: Dict[str, Union[str, List[str]]],
+) -> None:
     assert merge_config_settings(reqs, cli) == expected