Move imports of `ThreadPoolExecutor` into `reformat_many()`, allowing Black-in-the...

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

diff --git a/tests/test_blackd.py b/tests/test_blackd.py
index 9ca19d49dc6b79a86314100a0e37e3df23f16e58..6174c4538b94d7438d513383f9e6977885855ac6 100644 (file)
--- a/tests/test_blackd.py
+++ b/tests/test_blackd.py
@@ -1,4 +1,5 @@
 import re
+from typing import Any
 from unittest.mock import patch
 
 from click.testing import CliRunner
@@ -8,12 +9,18 @@ from tests.util import read_data, DETERMINISTIC_HEADER
 
 try:
     import blackd
-    from aiohttp.test_utils import AioHTTPTestCase, unittest_run_loop
+    from aiohttp.test_utils import AioHTTPTestCase
     from aiohttp import web
+except ImportError as e:
+    raise RuntimeError("Please install Black with the 'd' extra") from e
+
+try:
+    from aiohttp.test_utils import unittest_run_loop
 except ImportError:
-    has_blackd_deps = False
-else:
-    has_blackd_deps = True
+    # unittest_run_loop is unnecessary and a no-op since aiohttp 3.8, and aiohttp 4
+    # removed it. To maintain compatibility we can make our own no-op decorator.
+    def unittest_run_loop(func: Any, *args: Any, **kwargs: Any) -> Any:
+        return func
 
 
 @pytest.mark.blackd
@@ -77,6 +84,9 @@ class BlackDTestCase(AioHTTPTestCase):
         await check("ruby3.5")
         await check("pyi3.6")
         await check("py1.5")
+        await check("2")
+        await check("2.7")
+        await check("py2.7")
         await check("2.8")
         await check("py2.8")
         await check("3.0")
@@ -137,10 +147,6 @@ class BlackDTestCase(AioHTTPTestCase):
         await check("py36,py37", 200)
         await check("36", 200)
         await check("3.6.4", 200)
-
-        await check("2", 204)
-        await check("2.7", 204)
-        await check("py2.7", 204)
         await check("3.4", 204)
         await check("py3.4", 204)
         await check("py34,py36", 204)
@@ -164,3 +170,24 @@ 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"))