blackd: fix mishandling of single character input (#3558)

[etc/vim.git] / tests / test_blackd.py

diff --git a/tests/test_blackd.py b/tests/test_blackd.py
index 325bd7dd5aaf6f5a4483c0b53375a22e78028dad..dd2126e6bc24d97473c89153a3043af2f3f9a024 100644 (file)
--- a/tests/test_blackd.py
+++ b/tests/test_blackd.py
@@ -240,3 +240,9 @@ class BlackDTestCase(AioHTTPTestCase):  # type: ignore[misc]
             response = await self.client.post("/", data=data)
             self.assertEqual(await response.text(), expected)
             self.assertEqual(response.status, 200)
+
+    @unittest_run_loop
+    async def test_single_character(self) -> None:
+        response = await self.client.post("/", data="1")
+        self.assertEqual(await response.text(), "1\n")
+        self.assertEqual(response.status, 200)