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Port & upstream mypyc wheel build workflow (#3197)
[etc/vim.git] / tests / test_blackd.py
index 9127297c54fc08c86ef93dc4120401229767f312..1d12113a3f383edac32a38b5c4e9dc89e79f15e6 100644 (file)
@@ -1,23 +1,31 @@
 import re
-import unittest
+from typing import Any
 from unittest.mock import patch
 
+import pytest
 from click.testing import CliRunner
 
-from tests.util import read_data, DETERMINISTIC_HEADER, skip_if_exception
+from tests.util import DETERMINISTIC_HEADER, read_data
 
 try:
-    import blackd
-    from aiohttp.test_utils import AioHTTPTestCase, unittest_run_loop
     from aiohttp import web
+    from aiohttp.test_utils import AioHTTPTestCase
+
+    import blackd
+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
 class BlackDTestCase(AioHTTPTestCase):
-    @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed")
     def test_blackd_main(self) -> None:
         with patch("blackd.web.run_app"):
             result = CliRunner().invoke(blackd.main, [])
@@ -28,10 +36,6 @@ class BlackDTestCase(AioHTTPTestCase):
     async def get_application(self) -> web.Application:
         return blackd.make_app()
 
-    # TODO: remove these decorators once the below is released
-    # https://github.com/aio-libs/aiohttp/pull/3727
-    @skip_if_exception("ClientOSError")
-    @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed")
     @unittest_run_loop
     async def test_blackd_request_needs_formatting(self) -> None:
         response = await self.client.post("/", data=b"print('hello world')")
@@ -39,16 +43,12 @@ class BlackDTestCase(AioHTTPTestCase):
         self.assertEqual(response.charset, "utf8")
         self.assertEqual(await response.read(), b'print("hello world")\n')
 
-    @skip_if_exception("ClientOSError")
-    @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed")
     @unittest_run_loop
     async def test_blackd_request_no_change(self) -> None:
         response = await self.client.post("/", data=b'print("hello world")\n')
         self.assertEqual(response.status, 204)
         self.assertEqual(await response.read(), b"")
 
-    @skip_if_exception("ClientOSError")
-    @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed")
     @unittest_run_loop
     async def test_blackd_request_syntax_error(self) -> None:
         response = await self.client.post("/", data=b"what even ( is")
@@ -59,8 +59,6 @@ class BlackDTestCase(AioHTTPTestCase):
             msg=f"Expected error to start with 'Cannot parse', got {repr(content)}",
         )
 
-    @skip_if_exception("ClientOSError")
-    @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed")
     @unittest_run_loop
     async def test_blackd_unsupported_version(self) -> None:
         response = await self.client.post(
@@ -68,8 +66,6 @@ class BlackDTestCase(AioHTTPTestCase):
         )
         self.assertEqual(response.status, 501)
 
-    @skip_if_exception("ClientOSError")
-    @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed")
     @unittest_run_loop
     async def test_blackd_supported_version(self) -> None:
         response = await self.client.post(
@@ -77,8 +73,6 @@ class BlackDTestCase(AioHTTPTestCase):
         )
         self.assertEqual(response.status, 200)
 
-    @skip_if_exception("ClientOSError")
-    @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed")
     @unittest_run_loop
     async def test_blackd_invalid_python_variant(self) -> None:
         async def check(header_value: str, expected_status: int = 400) -> None:
@@ -91,33 +85,32 @@ 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")
         await check("pypy3.0")
         await check("jython3.4")
 
-    @skip_if_exception("ClientOSError")
-    @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed")
     @unittest_run_loop
     async def test_blackd_pyi(self) -> None:
-        source, expected = read_data("stub.pyi")
+        source, expected = read_data("miscellaneous", "stub.pyi")
         response = await self.client.post(
             "/", data=source, headers={blackd.PYTHON_VARIANT_HEADER: "pyi"}
         )
         self.assertEqual(response.status, 200)
         self.assertEqual(await response.text(), expected)
 
-    @skip_if_exception("ClientOSError")
-    @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed")
     @unittest_run_loop
     async def test_blackd_diff(self) -> None:
         diff_header = re.compile(
             r"(In|Out)\t\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d\.\d\d\d\d\d\d \+\d\d\d\d"
         )
 
-        source, _ = read_data("blackd_diff.py")
-        expected, _ = read_data("blackd_diff.diff")
+        source, _ = read_data("miscellaneous", "blackd_diff")
+        expected, _ = read_data("miscellaneous", "blackd_diff.diff")
 
         response = await self.client.post(
             "/", data=source, headers={blackd.DIFF_HEADER: "true"}
@@ -128,8 +121,6 @@ class BlackDTestCase(AioHTTPTestCase):
         actual = diff_header.sub(DETERMINISTIC_HEADER, actual)
         self.assertEqual(actual, expected)
 
-    @skip_if_exception("ClientOSError")
-    @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed")
     @unittest_run_loop
     async def test_blackd_python_variant(self) -> None:
         code = (
@@ -157,17 +148,11 @@ 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)
         await check("34", 204)
 
-    @skip_if_exception("ClientOSError")
-    @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed")
     @unittest_run_loop
     async def test_blackd_line_length(self) -> None:
         response = await self.client.post(
@@ -175,8 +160,6 @@ class BlackDTestCase(AioHTTPTestCase):
         )
         self.assertEqual(response.status, 200)
 
-    @skip_if_exception("ClientOSError")
-    @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed")
     @unittest_run_loop
     async def test_blackd_invalid_line_length(self) -> None:
         response = await self.client.post(
@@ -184,9 +167,35 @@ class BlackDTestCase(AioHTTPTestCase):
         )
         self.assertEqual(response.status, 400)
 
-    @skip_if_exception("ClientOSError")
-    @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed")
+    @unittest_run_loop
+    async def test_blackd_preview(self) -> None:
+        response = await self.client.post(
+            "/", data=b'print("hello")\n', headers={blackd.PREVIEW: "true"}
+        )
+        self.assertEqual(response.status, 204)
+
     @unittest_run_loop
     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"))