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Fix misdetection of project root with `--stdin-filename` (#3216)
[etc/vim.git] / tests / test_blackd.py
diff --git a/tests/test_blackd.py b/tests/test_blackd.py
index 1d12113a3f383edac32a38b5c4e9dc89e79f15e6..8e739063f6e50c908105cfab832df1b7c2dc4445 100644 (file)
--- a/tests/test_blackd.py
+++ b/tests/test_blackd.py
@@ -1,4 +1,5 @@
 import re
 import re
+import sys
 from typing import Any
 from unittest.mock import patch
 
 from typing import Any
 from unittest.mock import patch
 
@@ -7,195 +8,201 @@ from click.testing import CliRunner
 
 from tests.util import DETERMINISTIC_HEADER, read_data
 
 
 from tests.util import DETERMINISTIC_HEADER, read_data
 
-try:
-    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:
-    # 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):
-    def test_blackd_main(self) -> None:
-        with patch("blackd.web.run_app"):
-            result = CliRunner().invoke(blackd.main, [])
-            if result.exception is not None:
-                raise result.exception
-            self.assertEqual(result.exit_code, 0)
-
-    async def get_application(self) -> web.Application:
-        return blackd.make_app()
-
-    @unittest_run_loop
-    async def test_blackd_request_needs_formatting(self) -> None:
-        response = await self.client.post("/", data=b"print('hello world')")
-        self.assertEqual(response.status, 200)
-        self.assertEqual(response.charset, "utf8")
-        self.assertEqual(await response.read(), b'print("hello world")\n')
-
-    @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"")
-
-    @unittest_run_loop
-    async def test_blackd_request_syntax_error(self) -> None:
-        response = await self.client.post("/", data=b"what even ( is")
-        self.assertEqual(response.status, 400)
-        content = await response.text()
-        self.assertTrue(
-            content.startswith("Cannot parse"),
-            msg=f"Expected error to start with 'Cannot parse', got {repr(content)}",
-        )
-
-    @unittest_run_loop
-    async def test_blackd_unsupported_version(self) -> None:
-        response = await self.client.post(
-            "/", data=b"what", headers={blackd.PROTOCOL_VERSION_HEADER: "2"}
-        )
-        self.assertEqual(response.status, 501)
-
-    @unittest_run_loop
-    async def test_blackd_supported_version(self) -> None:
-        response = await self.client.post(
-            "/", data=b"what", headers={blackd.PROTOCOL_VERSION_HEADER: "1"}
-        )
-        self.assertEqual(response.status, 200)
-
-    @unittest_run_loop
-    async def test_blackd_invalid_python_variant(self) -> None:
-        async def check(header_value: str, expected_status: int = 400) -> None:
+LESS_THAN_311 = sys.version_info < (3, 11)
+
+if LESS_THAN_311:  # noqa: C901
+    try:
+        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:
+        # 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):
+        def test_blackd_main(self) -> None:
+            with patch("blackd.web.run_app"):
+                result = CliRunner().invoke(blackd.main, [])
+                if result.exception is not None:
+                    raise result.exception
+                self.assertEqual(result.exit_code, 0)
+
+        async def get_application(self) -> web.Application:
+            return blackd.make_app()
+
+        @unittest_run_loop
+        async def test_blackd_request_needs_formatting(self) -> None:
+            response = await self.client.post("/", data=b"print('hello world')")
+            self.assertEqual(response.status, 200)
+            self.assertEqual(response.charset, "utf8")
+            self.assertEqual(await response.read(), b'print("hello world")\n')
+
+        @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"")
+
+        @unittest_run_loop
+        async def test_blackd_request_syntax_error(self) -> None:
+            response = await self.client.post("/", data=b"what even ( is")
+            self.assertEqual(response.status, 400)
+            content = await response.text()
+            self.assertTrue(
+                content.startswith("Cannot parse"),
+                msg=f"Expected error to start with 'Cannot parse', got {repr(content)}",
+            )
+
+        @unittest_run_loop
+        async def test_blackd_unsupported_version(self) -> None:
+            response = await self.client.post(
+                "/", data=b"what", headers={blackd.PROTOCOL_VERSION_HEADER: "2"}
+            )
+            self.assertEqual(response.status, 501)
+
+        @unittest_run_loop
+        async def test_blackd_supported_version(self) -> None:
+            response = await self.client.post(
+                "/", data=b"what", headers={blackd.PROTOCOL_VERSION_HEADER: "1"}
+            )
+            self.assertEqual(response.status, 200)
+
+        @unittest_run_loop
+        async def test_blackd_invalid_python_variant(self) -> None:
+            async def check(header_value: str, expected_status: int = 400) -> None:
+                response = await self.client.post(
+                    "/",
+                    data=b"what",
+                    headers={blackd.PYTHON_VARIANT_HEADER: header_value},
+                )
+                self.assertEqual(response.status, expected_status)
+
+            await check("lol")
+            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")
+
+        @unittest_run_loop
+        async def test_blackd_pyi(self) -> None:
+            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)
+
+        @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("miscellaneous", "blackd_diff")
+            expected, _ = read_data("miscellaneous", "blackd_diff.diff")
+
             response = await self.client.post(
             response = await self.client.post(
-                "/", data=b"what", headers={blackd.PYTHON_VARIANT_HEADER: header_value}
+                "/", data=source, headers={blackd.DIFF_HEADER: "true"}
             )
             )
-            self.assertEqual(response.status, expected_status)
-
-        await check("lol")
-        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")
-
-    @unittest_run_loop
-    async def test_blackd_pyi(self) -> None:
-        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)
-
-    @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("miscellaneous", "blackd_diff")
-        expected, _ = read_data("miscellaneous", "blackd_diff.diff")
-
-        response = await self.client.post(
-            "/", data=source, headers={blackd.DIFF_HEADER: "true"}
-        )
-        self.assertEqual(response.status, 200)
-
-        actual = await response.text()
-        actual = diff_header.sub(DETERMINISTIC_HEADER, actual)
-        self.assertEqual(actual, expected)
-
-    @unittest_run_loop
-    async def test_blackd_python_variant(self) -> None:
-        code = (
-            "def f(\n"
-            "    and_has_a_bunch_of,\n"
-            "    very_long_arguments_too,\n"
-            "    and_lots_of_them_as_well_lol,\n"
-            "    **and_very_long_keyword_arguments\n"
-            "):\n"
-            "    pass\n"
-        )
-
-        async def check(header_value: str, expected_status: int) -> None:
+            self.assertEqual(response.status, 200)
+
+            actual = await response.text()
+            actual = diff_header.sub(DETERMINISTIC_HEADER, actual)
+            self.assertEqual(actual, expected)
+
+        @unittest_run_loop
+        async def test_blackd_python_variant(self) -> None:
+            code = (
+                "def f(\n"
+                "    and_has_a_bunch_of,\n"
+                "    very_long_arguments_too,\n"
+                "    and_lots_of_them_as_well_lol,\n"
+                "    **and_very_long_keyword_arguments\n"
+                "):\n"
+                "    pass\n"
+            )
+
+            async def check(header_value: str, expected_status: int) -> None:
+                response = await self.client.post(
+                    "/", data=code, headers={blackd.PYTHON_VARIANT_HEADER: header_value}
+                )
+                self.assertEqual(
+                    response.status, expected_status, msg=await response.text()
+                )
+
+            await check("3.6", 200)
+            await check("py3.6", 200)
+            await check("3.6,3.7", 200)
+            await check("3.6,py3.7", 200)
+            await check("py36,py37", 200)
+            await check("36", 200)
+            await check("3.6.4", 200)
+            await check("3.4", 204)
+            await check("py3.4", 204)
+            await check("py34,py36", 204)
+            await check("34", 204)
+
+        @unittest_run_loop
+        async def test_blackd_line_length(self) -> None:
             response = await self.client.post(
             response = await self.client.post(
-                "/", data=code, headers={blackd.PYTHON_VARIANT_HEADER: header_value}
+                "/", data=b'print("hello")\n', headers={blackd.LINE_LENGTH_HEADER: "7"}
             )
             )
-            self.assertEqual(
-                response.status, expected_status, msg=await response.text()
+            self.assertEqual(response.status, 200)
+
+        @unittest_run_loop
+        async def test_blackd_invalid_line_length(self) -> None:
+            response = await self.client.post(
+                "/",
+                data=b'print("hello")\n',
+                headers={blackd.LINE_LENGTH_HEADER: "NaN"},
             )
             )
+            self.assertEqual(response.status, 400)
 
 
-        await check("3.6", 200)
-        await check("py3.6", 200)
-        await check("3.6,3.7", 200)
-        await check("3.6,py3.7", 200)
-        await check("py36,py37", 200)
-        await check("36", 200)
-        await check("3.6.4", 200)
-        await check("3.4", 204)
-        await check("py3.4", 204)
-        await check("py34,py36", 204)
-        await check("34", 204)
-
-    @unittest_run_loop
-    async def test_blackd_line_length(self) -> None:
-        response = await self.client.post(
-            "/", data=b'print("hello")\n', headers={blackd.LINE_LENGTH_HEADER: "7"}
-        )
-        self.assertEqual(response.status, 200)
-
-    @unittest_run_loop
-    async def test_blackd_invalid_line_length(self) -> None:
-        response = await self.client.post(
-            "/", data=b'print("hello")\n', headers={blackd.LINE_LENGTH_HEADER: "NaN"}
-        )
-        self.assertEqual(response.status, 400)
-
-    @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"))
+        @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"))
vim configuration

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