X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/65ea568e3301951f26e0e3b98f6d5dc80132e917..c7495b9aa098ef7a358fc74556359d21c6a4ba11:/tests/test_black.py

diff --git a/tests/test_black.py b/tests/test_black.py
index 7b3a8b6..015243f 100644
--- a/tests/test_black.py
+++ b/tests/test_black.py
@@ -639,6 +639,14 @@ class BlackTestCase(unittest.TestCase):
         black.assert_equivalent(source, actual)
         black.assert_stable(source, actual, black.FileMode())
 
+    @patch("black.dump_to_file", dump_to_stderr)
+    def test_beginning_backslash(self) -> None:
+        source, expected = read_data("beginning_backslash")
+        actual = fs(source)
+        self.assertFormatEqual(expected, actual)
+        black.assert_equivalent(source, actual)
+        black.assert_stable(source, actual, black.FileMode())
+
     def test_tab_comment_indentation(self) -> None:
         contents_tab = "if 1:\n\tif 2:\n\t\tpass\n\t# comment\n\tpass\n"
         contents_spc = "if 1:\n    if 2:\n        pass\n    # comment\n    pass\n"