X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/2d9eaafa97e967c8974a6321dcc442a90192140f..987543001ab6aded0ff4f87a9eafe641e33e2206:/tests/test_black.py

diff --git a/tests/test_black.py b/tests/test_black.py
index 5e17faf..951b298 100644
--- a/tests/test_black.py
+++ b/tests/test_black.py
@@ -325,6 +325,14 @@ class BlackTestCase(unittest.TestCase):
         black.assert_equivalent(source, actual)
         black.assert_stable(source, actual, line_length=ll)
 
+    @patch("black.dump_to_file", dump_to_stderr)
+    def test_remove_empty_parentheses_after_class(self) -> None:
+        source, expected = read_data("class_blank_parentheses")
+        actual = fs(source)
+        self.assertFormatEqual(expected, actual)
+        black.assert_equivalent(source, actual)
+        black.assert_stable(source, actual, line_length=ll)
+
     def test_report(self) -> None:
         report = black.Report()
         out_lines = []