X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/957ba24bb6cdd32e4dd14ff2808dcf4d58851844..faaa2c8d59cd6f6321acec0b3126835b445e3080:/tests/test_black.py?ds=sidebyside diff --git a/tests/test_black.py b/tests/test_black.py index 88c03d0..66a0761 100644 --- a/tests/test_black.py +++ b/tests/test_black.py @@ -3,24 +3,14 @@ import asyncio import logging from concurrent.futures import ThreadPoolExecutor from contextlib import contextmanager -from functools import partial, wraps +from functools import partial from io import BytesIO, TextIOWrapper import os from pathlib import Path import re import sys from tempfile import TemporaryDirectory -from typing import ( - Any, - BinaryIO, - Callable, - Coroutine, - Generator, - List, - Tuple, - Iterator, - TypeVar, -) +from typing import Any, BinaryIO, Generator, List, Tuple, Iterator, TypeVar import unittest from unittest.mock import patch, MagicMock @@ -32,7 +22,8 @@ from black import Feature, TargetVersion try: import blackd - from aiohttp.test_utils import TestClient, TestServer + from aiohttp.test_utils import AioHTTPTestCase, unittest_run_loop + from aiohttp import web except ImportError: has_blackd_deps = False else: @@ -90,25 +81,25 @@ def cache_dir(exists: bool = True) -> Iterator[Path]: @contextmanager def event_loop(close: bool) -> Iterator[None]: policy = asyncio.get_event_loop_policy() - old_loop = policy.get_event_loop() loop = policy.new_event_loop() asyncio.set_event_loop(loop) try: yield finally: - policy.set_event_loop(old_loop) if close: loop.close() -def async_test(f: Callable[..., Coroutine[Any, None, R]]) -> Callable[..., None]: - @event_loop(close=True) - @wraps(f) - def wrapper(*args: Any, **kwargs: Any) -> None: - asyncio.get_event_loop().run_until_complete(f(*args, **kwargs)) - - return wrapper +@contextmanager +def skip_if_exception(e: str) -> Iterator[None]: + try: + yield + except Exception as exc: + if exc.__class__.__name__ == e: + unittest.skip(f"Encountered expected exception {exc}, skipping") + else: + raise class BlackRunner(CliRunner): @@ -264,6 +255,14 @@ class BlackTestCase(unittest.TestCase): black.assert_equivalent(source, actual) black.assert_stable(source, actual, black.FileMode()) + @patch("black.dump_to_file", dump_to_stderr) + def test_function_trailing_comma(self) -> None: + source, expected = read_data("function_trailing_comma") + actual = fs(source) + self.assertFormatEqual(expected, actual) + black.assert_equivalent(source, actual) + black.assert_stable(source, actual, black.FileMode()) + @patch("black.dump_to_file", dump_to_stderr) def test_expression(self) -> None: source, expected = read_data("expression") @@ -272,6 +271,23 @@ class BlackTestCase(unittest.TestCase): black.assert_equivalent(source, actual) black.assert_stable(source, actual, black.FileMode()) + @patch("black.dump_to_file", dump_to_stderr) + def test_pep_572(self) -> None: + source, expected = read_data("pep_572") + actual = fs(source) + self.assertFormatEqual(expected, actual) + black.assert_stable(source, actual, black.FileMode()) + if sys.version_info >= (3, 8): + black.assert_equivalent(source, actual) + + def test_pep_572_version_detection(self) -> None: + source, _ = read_data("pep_572") + root = black.lib2to3_parse(source) + features = black.get_features_used(root) + self.assertIn(black.Feature.ASSIGNMENT_EXPRESSIONS, features) + versions = black.detect_target_versions(root) + self.assertIn(black.TargetVersion.PY38, versions) + def test_expression_ff(self) -> None: source, expected = read_data("expression") tmp_file = Path(black.dump_to_file(source)) @@ -319,6 +335,23 @@ class BlackTestCase(unittest.TestCase): black.assert_equivalent(source, actual) black.assert_stable(source, actual, black.FileMode()) + @patch("black.dump_to_file", dump_to_stderr) + def test_pep_570(self) -> None: + source, expected = read_data("pep_570") + actual = fs(source) + self.assertFormatEqual(expected, actual) + black.assert_stable(source, actual, black.FileMode()) + if sys.version_info >= (3, 8): + black.assert_equivalent(source, actual) + + def test_detect_pos_only_arguments(self) -> None: + source, _ = read_data("pep_570") + root = black.lib2to3_parse(source) + features = black.get_features_used(root) + self.assertIn(black.Feature.POS_ONLY_ARGUMENTS, features) + versions = black.detect_target_versions(root) + self.assertIn(black.TargetVersion.PY38, versions) + @patch("black.dump_to_file", dump_to_stderr) def test_string_quotes(self) -> None: source, expected = read_data("string_quotes") @@ -588,6 +621,14 @@ class BlackTestCase(unittest.TestCase): black.assert_equivalent(source, actual) black.assert_stable(source, actual, black.FileMode()) + @patch("black.dump_to_file", dump_to_stderr) + def test_beginning_backslash(self) -> None: + source, expected = read_data("beginning_backslash") + actual = fs(source) + self.assertFormatEqual(expected, actual) + black.assert_equivalent(source, actual) + black.assert_stable(source, actual, black.FileMode()) + def test_tab_comment_indentation(self) -> None: contents_tab = "if 1:\n\tif 2:\n\t\tpass\n\t# comment\n\tpass\n" contents_spc = "if 1:\n if 2:\n pass\n # comment\n pass\n" @@ -1000,10 +1041,10 @@ class BlackTestCase(unittest.TestCase): just_nl = "\n" with self.assertRaises(black.NothingChanged): black.format_file_contents(just_nl, mode=mode, fast=False) - same = "l = [1, 2, 3]\n" + same = "j = [1, 2, 3]\n" with self.assertRaises(black.NothingChanged): black.format_file_contents(same, mode=mode, fast=False) - different = "l = [1,2,3]" + different = "j = [1,2,3]" expected = same actual = black.format_file_contents(different, mode=mode, fast=False) self.assertEqual(expected, actual) @@ -1031,7 +1072,7 @@ class BlackTestCase(unittest.TestCase): with patch("black.out", out), patch("black.err", err): with self.assertRaises(AssertionError): - self.assertFormatEqual("l = [1, 2, 3]", "l = [1, 2, 3,]") + self.assertFormatEqual("j = [1, 2, 3]", "j = [1, 2, 3,]") out_str = "".join(out_lines) self.assertTrue("Expected tree:" in out_str) @@ -1473,97 +1514,102 @@ class BlackTestCase(unittest.TestCase): ff(THIS_FILE) @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @async_test + 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) + + +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: - app = blackd.make_app() - async with TestClient(TestServer(app)) as client: - response = await 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') + 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') + @skip_if_exception("ClientOSError") @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @async_test + @unittest_run_loop async def test_blackd_request_no_change(self) -> None: - app = blackd.make_app() - async with TestClient(TestServer(app)) as client: - response = await client.post("/", data=b'print("hello world")\n') - self.assertEqual(response.status, 204) - self.assertEqual(await response.read(), b"") + 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") - @async_test + @unittest_run_loop async def test_blackd_request_syntax_error(self) -> None: - app = blackd.make_app() - async with TestClient(TestServer(app)) as client: - response = await 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)}", - ) + 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)}", + ) + @skip_if_exception("ClientOSError") @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @async_test + @unittest_run_loop async def test_blackd_unsupported_version(self) -> None: - app = blackd.make_app() - async with TestClient(TestServer(app)) as client: - response = await client.post( - "/", data=b"what", headers={blackd.VERSION_HEADER: "2"} - ) - self.assertEqual(response.status, 501) + response = await self.client.post( + "/", data=b"what", headers={blackd.VERSION_HEADER: "2"} + ) + self.assertEqual(response.status, 501) + @skip_if_exception("ClientOSError") @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @async_test + @unittest_run_loop async def test_blackd_supported_version(self) -> None: - app = blackd.make_app() - async with TestClient(TestServer(app)) as client: - response = await client.post( - "/", data=b"what", headers={blackd.VERSION_HEADER: "1"} - ) - self.assertEqual(response.status, 200) + response = await self.client.post( + "/", data=b"what", headers={blackd.VERSION_HEADER: "1"} + ) + self.assertEqual(response.status, 200) + @skip_if_exception("ClientOSError") @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @async_test + @unittest_run_loop async def test_blackd_invalid_python_variant(self) -> None: - app = blackd.make_app() - async with TestClient(TestServer(app)) as client: - - async def check(header_value: str, expected_status: int = 400) -> None: - response = await 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("2.8") - await check("py2.8") - await check("3.0") - await check("pypy3.0") - await check("jython3.4") - + 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("2.8") + 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") - @async_test + @unittest_run_loop async def test_blackd_pyi(self) -> None: - app = blackd.make_app() - async with TestClient(TestServer(app)) as client: - source, expected = read_data("stub.pyi") - response = await client.post( - "/", data=source, headers={blackd.PYTHON_VARIANT_HEADER: "pyi"} - ) - self.assertEqual(response.status, 200) - self.assertEqual(await response.text(), expected) + source, expected = read_data("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") - @async_test + @unittest_run_loop async def test_blackd_python_variant(self) -> None: - app = blackd.make_app() code = ( "def f(\n" " and_has_a_bunch_of,\n" @@ -1573,54 +1619,48 @@ class BlackTestCase(unittest.TestCase): "):\n" " pass\n" ) - async with TestClient(TestServer(app)) as client: - async def check(header_value: str, expected_status: int) -> None: - response = await client.post( - "/", data=code, headers={blackd.PYTHON_VARIANT_HEADER: header_value} - ) - self.assertEqual(response.status, expected_status) - - 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("2", 204) - await check("2.7", 204) - await check("py2.7", 204) - await check("3.4", 204) - await check("py3.4", 204) + 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("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") - @async_test + @unittest_run_loop async def test_blackd_line_length(self) -> None: - app = blackd.make_app() - async with TestClient(TestServer(app)) as client: - response = await client.post( - "/", data=b'print("hello")\n', headers={blackd.LINE_LENGTH_HEADER: "7"} - ) - self.assertEqual(response.status, 200) + response = await self.client.post( + "/", data=b'print("hello")\n', headers={blackd.LINE_LENGTH_HEADER: "7"} + ) + self.assertEqual(response.status, 200) + @skip_if_exception("ClientOSError") @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed") - @async_test + @unittest_run_loop async def test_blackd_invalid_line_length(self) -> None: - app = blackd.make_app() - async with TestClient(TestServer(app)) as client: - response = await client.post( - "/", - data=b'print("hello")\n', - headers={blackd.LINE_LENGTH_HEADER: "NaN"}, - ) - self.assertEqual(response.status, 400) - - @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, []) - if result.exception is not None: - raise result.exception - self.assertEqual(result.exit_code, 0) + response = await self.client.post( + "/", data=b'print("hello")\n', headers={blackd.LINE_LENGTH_HEADER: "NaN"} + ) + self.assertEqual(response.status, 400) if __name__ == "__main__":