X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/788268bc39a87d37a24d203fa5ee7b3953af3446..292bceb9fd2d7a642351d06c02d2e751933baa5c:/tests/test_black.py

diff --git a/tests/test_black.py b/tests/test_black.py
index 7793b0e..bb1929e 100644
--- a/tests/test_black.py
+++ b/tests/test_black.py
@@ -630,6 +630,14 @@ class BlackTestCase(unittest.TestCase):
         black.assert_equivalent(source, actual)
         black.assert_stable(source, actual, DEFAULT_MODE)
 
+    @patch("black.dump_to_file", dump_to_stderr)
+    def test_composition_no_trailing_comma(self) -> None:
+        source, expected = read_data("composition_no_trailing_comma")
+        actual = fs(source)
+        self.assertFormatEqual(expected, actual)
+        black.assert_equivalent(source, actual)
+        black.assert_stable(source, actual, DEFAULT_MODE)
+
     @patch("black.dump_to_file", dump_to_stderr)
     def test_empty_lines(self) -> None:
         source, expected = read_data("empty_lines")
@@ -2062,7 +2070,7 @@ class BlackDTestCase(AioHTTPTestCase):
         self.assertIsNotNone(response.headers.get(blackd.BLACK_VERSION_HEADER))
 
 
-with open(black.__file__, "r") as _bf:
+with open(black.__file__, "r", encoding="utf-8") as _bf:
     black_source_lines = _bf.readlines()