X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/d0e06b53b09248be34c1d5c0fa8f050bff1d201c..db2715441a391f218863493aa20027f802ab0c7b:/tests/test_blackd.py

diff --git a/tests/test_blackd.py b/tests/test_blackd.py
index 9ca19d4..cc750b4 100644
--- a/tests/test_blackd.py
+++ b/tests/test_blackd.py
@@ -164,3 +164,24 @@ class BlackDTestCase(AioHTTPTestCase):
     async def test_blackd_response_black_version_header(self) -> None:
         response = await self.client.post("/")
         self.assertIsNotNone(response.headers.get(blackd.BLACK_VERSION_HEADER))
+
+    @unittest_run_loop
+    async def test_cors_preflight(self) -> None:
+        response = await self.client.options(
+            "/",
+            headers={
+                "Access-Control-Request-Method": "POST",
+                "Origin": "*",
+                "Access-Control-Request-Headers": "Content-Type",
+            },
+        )
+        self.assertEqual(response.status, 200)
+        self.assertIsNotNone(response.headers.get("Access-Control-Allow-Origin"))
+        self.assertIsNotNone(response.headers.get("Access-Control-Allow-Headers"))
+        self.assertIsNotNone(response.headers.get("Access-Control-Allow-Methods"))
+
+    @unittest_run_loop
+    async def test_cors_headers_present(self) -> None:
+        response = await self.client.post("/", headers={"Origin": "*"})
+        self.assertIsNotNone(response.headers.get("Access-Control-Allow-Origin"))
+        self.assertIsNotNone(response.headers.get("Access-Control-Expose-Headers"))