import asyncio
import logging
from concurrent.futures import ThreadPoolExecutor
-from contextlib import contextmanager, redirect_stderr
-from functools import partial, wraps
+from contextlib import contextmanager
+from functools import partial
from io import BytesIO, TextIOWrapper
import os
from pathlib import Path
-import re
+import regex as 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
from click.testing import CliRunner
import black
-from black import Feature
+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:
has_blackd_deps = True
+from pathspec import PathSpec
+
ff = partial(black.format_file_in_place, mode=black.FileMode(), fast=True)
fs = partial(black.format_str, mode=black.FileMode())
THIS_FILE = Path(__file__)
THIS_DIR = THIS_FILE.parent
+DETERMINISTIC_HEADER = "[Deterministic header]"
EMPTY_LINE = "# EMPTY LINE WITH WHITESPACE" + " (this comment will be removed)"
PY36_ARGS = [
f"--target-version={version.name.lower()}" for version in black.PY36_VERSIONS
@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):
result = runner.invoke(black.main, args)
self.assertEqual(result.exit_code, exit_code, msg=runner.stderr_bytes.decode())
+ @patch("black.dump_to_file", dump_to_stderr)
+ def checkSourceFile(self, name: str) -> None:
+ path = THIS_DIR.parent / name
+ source, expected = read_data(str(path), data=False)
+ actual = fs(source)
+ self.assertFormatEqual(expected, actual)
+ black.assert_equivalent(source, actual)
+ black.assert_stable(source, actual, black.FileMode())
+ self.assertFalse(ff(path))
+
@patch("black.dump_to_file", dump_to_stderr)
def test_empty(self) -> None:
source = expected = ""
os.unlink(tmp_file)
self.assertFormatEqual(expected, actual)
- @patch("black.dump_to_file", dump_to_stderr)
def test_self(self) -> None:
- source, expected = read_data("test_black", data=False)
- actual = fs(source)
- self.assertFormatEqual(expected, actual)
- black.assert_equivalent(source, actual)
- black.assert_stable(source, actual, black.FileMode())
- self.assertFalse(ff(THIS_FILE))
+ self.checkSourceFile("tests/test_black.py")
- @patch("black.dump_to_file", dump_to_stderr)
def test_black(self) -> None:
- source, expected = read_data("../black", data=False)
- actual = fs(source)
- self.assertFormatEqual(expected, actual)
- black.assert_equivalent(source, actual)
- black.assert_stable(source, actual, black.FileMode())
- self.assertFalse(ff(THIS_DIR / ".." / "black.py"))
+ self.checkSourceFile("black.py")
+
+ def test_pygram(self) -> None:
+ self.checkSourceFile("blib2to3/pygram.py")
+
+ def test_pytree(self) -> None:
+ self.checkSourceFile("blib2to3/pytree.py")
+
+ def test_conv(self) -> None:
+ self.checkSourceFile("blib2to3/pgen2/conv.py")
+
+ def test_driver(self) -> None:
+ self.checkSourceFile("blib2to3/pgen2/driver.py")
+
+ def test_grammar(self) -> None:
+ self.checkSourceFile("blib2to3/pgen2/grammar.py")
+
+ def test_literals(self) -> None:
+ self.checkSourceFile("blib2to3/pgen2/literals.py")
+
+ def test_parse(self) -> None:
+ self.checkSourceFile("blib2to3/pgen2/parse.py")
+
+ def test_pgen(self) -> None:
+ self.checkSourceFile("blib2to3/pgen2/pgen.py")
+
+ def test_tokenize(self) -> None:
+ self.checkSourceFile("blib2to3/pgen2/tokenize.py")
+
+ def test_token(self) -> None:
+ self.checkSourceFile("blib2to3/pgen2/token.py")
+
+ def test_setup(self) -> None:
+ self.checkSourceFile("setup.py")
def test_piping(self) -> None:
source, expected = read_data("../black", data=False)
def test_piping_diff(self) -> None:
diff_header = re.compile(
- rf"(STDIN|STDOUT)\t\d\d\d\d-\d\d-\d\d "
- rf"\d\d:\d\d:\d\d\.\d\d\d\d\d\d \+\d\d\d\d"
+ rf"(STDIN|STDOUT)\t\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d\.\d\d\d\d\d\d "
+ rf"\+\d\d\d\d"
)
source, _ = read_data("expression.py")
expected, _ = read_data("expression.diff")
black.main, args, input=BytesIO(source.encode("utf8"))
)
self.assertEqual(result.exit_code, 0)
- actual = diff_header.sub("[Deterministic header]", result.output)
+ actual = diff_header.sub(DETERMINISTIC_HEADER, result.output)
actual = actual.rstrip() + "\n" # the diff output has a trailing space
self.assertEqual(expected, actual)
@patch("black.dump_to_file", dump_to_stderr)
- def test_setup(self) -> None:
- source, expected = read_data("../setup", data=False)
+ def test_function(self) -> None:
+ source, expected = read_data("function")
actual = fs(source)
self.assertFormatEqual(expected, actual)
black.assert_equivalent(source, actual)
black.assert_stable(source, actual, black.FileMode())
- self.assertFalse(ff(THIS_DIR / ".." / "setup.py"))
@patch("black.dump_to_file", dump_to_stderr)
- def test_function(self) -> None:
- source, expected = read_data("function")
+ def test_function2(self) -> None:
+ source, expected = read_data("function2")
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_function2(self) -> None:
- source, expected = read_data("function2")
+ 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_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))
tmp_file = Path(black.dump_to_file(source))
diff_header = re.compile(
rf"{re.escape(str(tmp_file))}\t\d\d\d\d-\d\d-\d\d "
- rf"\d\d:\d\d:\d\d\.\d\d\d\d\d\d \+\d\d\d\d"
+ r"\d\d:\d\d:\d\d\.\d\d\d\d\d\d \+\d\d\d\d"
)
try:
result = BlackRunner().invoke(black.main, ["--diff", str(tmp_file)])
finally:
os.unlink(tmp_file)
actual = result.output
- actual = diff_header.sub("[Deterministic header]", actual)
+ actual = diff_header.sub(DETERMINISTIC_HEADER, actual)
actual = actual.rstrip() + "\n" # the diff output has a trailing space
if expected != actual:
dump = black.dump_to_file(actual)
msg = (
- f"Expected diff isn't equal to the actual. If you made changes "
- f"to expression.py and this is an anticipated difference, "
- f"overwrite tests/data/expression.diff with {dump}"
+ "Expected diff isn't equal to the actual. If you made changes to"
+ " expression.py and this is an anticipated difference, overwrite"
+ f" tests/data/expression.diff with {dump}"
)
self.assertEqual(expected, actual, msg)
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")
black.assert_stable(source, actual, black.FileMode())
mode = black.FileMode(string_normalization=False)
not_normalized = fs(source, mode=mode)
- self.assertFormatEqual(source, not_normalized)
+ self.assertFormatEqual(source.replace("\\\n", ""), not_normalized)
black.assert_equivalent(source, not_normalized)
black.assert_stable(source, not_normalized, mode=mode)
+ @patch("black.dump_to_file", dump_to_stderr)
+ def test_docstring(self) -> None:
+ source, expected = read_data("docstring")
+ actual = fs(source)
+ self.assertFormatEqual(expected, actual)
+ black.assert_equivalent(source, actual)
+ black.assert_stable(source, actual, black.FileMode())
+
+ def test_long_strings(self) -> None:
+ """Tests for splitting long strings."""
+ source, expected = read_data("long_strings")
+ 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_long_strings__edge_case(self) -> None:
+ """Edge-case tests for splitting long strings."""
+ source, expected = read_data("long_strings__edge_case")
+ 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_long_strings__regression(self) -> None:
+ """Regression tests for splitting long strings."""
+ source, expected = read_data("long_strings__regression")
+ 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_slices(self) -> None:
source, expected = read_data("slices")
black.assert_equivalent(source, actual)
black.assert_stable(source, actual, black.FileMode())
+ @patch("black.dump_to_file", dump_to_stderr)
+ def test_comments7(self) -> None:
+ source, expected = read_data("comments7")
+ 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_comment_after_escaped_newline(self) -> None:
+ source, expected = read_data("comment_after_escaped_newline")
+ 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_cantfit(self) -> None:
source, expected = read_data("cantfit")
black.assert_equivalent(source, actual)
black.assert_stable(source, actual, black.FileMode())
+ @patch("black.dump_to_file", dump_to_stderr)
+ def test_remove_parens(self) -> None:
+ source, expected = read_data("remove_parens")
+ 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_string_prefixes(self) -> None:
source, expected = read_data("string_prefixes")
source, expected = read_data("python2")
actual = fs(source)
self.assertFormatEqual(expected, actual)
- # black.assert_equivalent(source, actual)
+ black.assert_equivalent(source, actual)
black.assert_stable(source, actual, black.FileMode())
@patch("black.dump_to_file", dump_to_stderr)
def test_python2_print_function(self) -> None:
source, expected = read_data("python2_print_function")
- mode = black.FileMode(target_versions={black.TargetVersion.PY27})
+ mode = black.FileMode(target_versions={TargetVersion.PY27})
actual = fs(source, mode=mode)
self.assertFormatEqual(expected, actual)
+ black.assert_equivalent(source, actual)
black.assert_stable(source, actual, mode)
@patch("black.dump_to_file", dump_to_stderr)
source, expected = read_data("python2_unicode_literals")
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)
self.assertFormatEqual(expected, actual)
black.assert_stable(source, actual, mode)
+ @patch("black.dump_to_file", dump_to_stderr)
+ def test_async_as_identifier(self) -> None:
+ source_path = (THIS_DIR / "data" / "async_as_identifier.py").resolve()
+ source, expected = read_data("async_as_identifier")
+ actual = fs(source)
+ self.assertFormatEqual(expected, actual)
+ major, minor = sys.version_info[:2]
+ if major < 3 or (major <= 3 and minor < 7):
+ black.assert_equivalent(source, actual)
+ black.assert_stable(source, actual, black.FileMode())
+ # ensure black can parse this when the target is 3.6
+ self.invokeBlack([str(source_path), "--target-version", "py36"])
+ # but not on 3.7, because async/await is no longer an identifier
+ self.invokeBlack([str(source_path), "--target-version", "py37"], exit_code=123)
+
@patch("black.dump_to_file", dump_to_stderr)
def test_python37(self) -> None:
+ source_path = (THIS_DIR / "data" / "python37.py").resolve()
source, expected = read_data("python37")
actual = fs(source)
self.assertFormatEqual(expected, actual)
if major > 3 or (major == 3 and minor >= 7):
black.assert_equivalent(source, actual)
black.assert_stable(source, actual, black.FileMode())
+ # ensure black can parse this when the target is 3.7
+ self.invokeBlack([str(source_path), "--target-version", "py37"])
+ # but not on 3.6, because we use async as a reserved keyword
+ self.invokeBlack([str(source_path), "--target-version", "py36"], exit_code=123)
+
+ @patch("black.dump_to_file", dump_to_stderr)
+ def test_python38(self) -> None:
+ source, expected = read_data("python38")
+ actual = fs(source)
+ self.assertFormatEqual(expected, actual)
+ major, minor = sys.version_info[:2]
+ if major > 3 or (major == 3 and minor >= 8):
+ black.assert_equivalent(source, actual)
+ black.assert_stable(source, actual, black.FileMode())
@patch("black.dump_to_file", dump_to_stderr)
def test_fmtonoff(self) -> None:
black.assert_equivalent(source, actual)
black.assert_stable(source, actual, black.FileMode())
+ @patch("black.dump_to_file", dump_to_stderr)
+ def test_fmtonoff3(self) -> None:
+ source, expected = read_data("fmtonoff3")
+ 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_fmtonoff4(self) -> None:
+ source, expected = read_data("fmtonoff4")
+ 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_remove_empty_parentheses_after_class(self) -> None:
source, expected = read_data("class_blank_parentheses")
black.assert_equivalent(source, actual)
black.assert_stable(source, actual, black.FileMode())
+ @patch("black.dump_to_file", dump_to_stderr)
+ def test_tuple_assign(self) -> None:
+ source, expected = read_data("tupleassign")
+ 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_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"
self.assertEqual(err_lines[-1], "error: cannot format e1: boom")
self.assertEqual(
unstyle(str(report)),
- "1 file reformatted, 2 files left unchanged, "
- "1 file failed to reformat.",
+ "1 file reformatted, 2 files left unchanged, 1 file failed to"
+ " reformat.",
)
self.assertEqual(report.return_code, 123)
report.done(Path("f3"), black.Changed.YES)
self.assertEqual(out_lines[-1], "reformatted f3")
self.assertEqual(
unstyle(str(report)),
- "2 files reformatted, 2 files left unchanged, "
- "1 file failed to reformat.",
+ "2 files reformatted, 2 files left unchanged, 1 file failed to"
+ " reformat.",
)
self.assertEqual(report.return_code, 123)
report.failed(Path("e2"), "boom")
self.assertEqual(err_lines[-1], "error: cannot format e2: boom")
self.assertEqual(
unstyle(str(report)),
- "2 files reformatted, 2 files left unchanged, "
- "2 files failed to reformat.",
+ "2 files reformatted, 2 files left unchanged, 2 files failed to"
+ " reformat.",
)
self.assertEqual(report.return_code, 123)
report.path_ignored(Path("wat"), "no match")
self.assertEqual(out_lines[-1], "wat ignored: no match")
self.assertEqual(
unstyle(str(report)),
- "2 files reformatted, 2 files left unchanged, "
- "2 files failed to reformat.",
+ "2 files reformatted, 2 files left unchanged, 2 files failed to"
+ " reformat.",
)
self.assertEqual(report.return_code, 123)
report.done(Path("f4"), black.Changed.NO)
self.assertEqual(out_lines[-1], "f4 already well formatted, good job.")
self.assertEqual(
unstyle(str(report)),
- "2 files reformatted, 3 files left unchanged, "
- "2 files failed to reformat.",
+ "2 files reformatted, 3 files left unchanged, 2 files failed to"
+ " reformat.",
)
self.assertEqual(report.return_code, 123)
report.check = True
self.assertEqual(
unstyle(str(report)),
- "2 files would be reformatted, 3 files would be left unchanged, "
- "2 files would fail to reformat.",
+ "2 files would be reformatted, 3 files would be left unchanged, 2 files"
+ " would fail to reformat.",
+ )
+ report.check = False
+ report.diff = True
+ self.assertEqual(
+ unstyle(str(report)),
+ "2 files would be reformatted, 3 files would be left unchanged, 2 files"
+ " would fail to reformat.",
)
def test_report_quiet(self) -> None:
self.assertEqual(err_lines[-1], "error: cannot format e1: boom")
self.assertEqual(
unstyle(str(report)),
- "1 file reformatted, 2 files left unchanged, "
- "1 file failed to reformat.",
+ "1 file reformatted, 2 files left unchanged, 1 file failed to"
+ " reformat.",
)
self.assertEqual(report.return_code, 123)
report.done(Path("f3"), black.Changed.YES)
self.assertEqual(len(err_lines), 1)
self.assertEqual(
unstyle(str(report)),
- "2 files reformatted, 2 files left unchanged, "
- "1 file failed to reformat.",
+ "2 files reformatted, 2 files left unchanged, 1 file failed to"
+ " reformat.",
)
self.assertEqual(report.return_code, 123)
report.failed(Path("e2"), "boom")
self.assertEqual(err_lines[-1], "error: cannot format e2: boom")
self.assertEqual(
unstyle(str(report)),
- "2 files reformatted, 2 files left unchanged, "
- "2 files failed to reformat.",
+ "2 files reformatted, 2 files left unchanged, 2 files failed to"
+ " reformat.",
)
self.assertEqual(report.return_code, 123)
report.path_ignored(Path("wat"), "no match")
self.assertEqual(len(err_lines), 2)
self.assertEqual(
unstyle(str(report)),
- "2 files reformatted, 2 files left unchanged, "
- "2 files failed to reformat.",
+ "2 files reformatted, 2 files left unchanged, 2 files failed to"
+ " reformat.",
)
self.assertEqual(report.return_code, 123)
report.done(Path("f4"), black.Changed.NO)
self.assertEqual(len(err_lines), 2)
self.assertEqual(
unstyle(str(report)),
- "2 files reformatted, 3 files left unchanged, "
- "2 files failed to reformat.",
+ "2 files reformatted, 3 files left unchanged, 2 files failed to"
+ " reformat.",
)
self.assertEqual(report.return_code, 123)
report.check = True
self.assertEqual(
unstyle(str(report)),
- "2 files would be reformatted, 3 files would be left unchanged, "
- "2 files would fail to reformat.",
+ "2 files would be reformatted, 3 files would be left unchanged, 2 files"
+ " would fail to reformat.",
+ )
+ report.check = False
+ report.diff = True
+ self.assertEqual(
+ unstyle(str(report)),
+ "2 files would be reformatted, 3 files would be left unchanged, 2 files"
+ " would fail to reformat.",
)
def test_report_normal(self) -> None:
self.assertEqual(err_lines[-1], "error: cannot format e1: boom")
self.assertEqual(
unstyle(str(report)),
- "1 file reformatted, 2 files left unchanged, "
- "1 file failed to reformat.",
+ "1 file reformatted, 2 files left unchanged, 1 file failed to"
+ " reformat.",
)
self.assertEqual(report.return_code, 123)
report.done(Path("f3"), black.Changed.YES)
self.assertEqual(out_lines[-1], "reformatted f3")
self.assertEqual(
unstyle(str(report)),
- "2 files reformatted, 2 files left unchanged, "
- "1 file failed to reformat.",
+ "2 files reformatted, 2 files left unchanged, 1 file failed to"
+ " reformat.",
)
self.assertEqual(report.return_code, 123)
report.failed(Path("e2"), "boom")
self.assertEqual(err_lines[-1], "error: cannot format e2: boom")
self.assertEqual(
unstyle(str(report)),
- "2 files reformatted, 2 files left unchanged, "
- "2 files failed to reformat.",
+ "2 files reformatted, 2 files left unchanged, 2 files failed to"
+ " reformat.",
)
self.assertEqual(report.return_code, 123)
report.path_ignored(Path("wat"), "no match")
self.assertEqual(len(err_lines), 2)
self.assertEqual(
unstyle(str(report)),
- "2 files reformatted, 2 files left unchanged, "
- "2 files failed to reformat.",
+ "2 files reformatted, 2 files left unchanged, 2 files failed to"
+ " reformat.",
)
self.assertEqual(report.return_code, 123)
report.done(Path("f4"), black.Changed.NO)
self.assertEqual(len(err_lines), 2)
self.assertEqual(
unstyle(str(report)),
- "2 files reformatted, 3 files left unchanged, "
- "2 files failed to reformat.",
+ "2 files reformatted, 3 files left unchanged, 2 files failed to"
+ " reformat.",
)
self.assertEqual(report.return_code, 123)
report.check = True
self.assertEqual(
unstyle(str(report)),
- "2 files would be reformatted, 3 files would be left unchanged, "
- "2 files would fail to reformat.",
+ "2 files would be reformatted, 3 files would be left unchanged, 2 files"
+ " would fail to reformat.",
)
+ report.check = False
+ report.diff = True
+ self.assertEqual(
+ unstyle(str(report)),
+ "2 files would be reformatted, 3 files would be left unchanged, 2 files"
+ " would fail to reformat.",
+ )
+
+ def test_lib2to3_parse(self) -> None:
+ with self.assertRaises(black.InvalidInput):
+ black.lib2to3_parse("invalid syntax")
+
+ straddling = "x + y"
+ black.lib2to3_parse(straddling)
+ black.lib2to3_parse(straddling, {TargetVersion.PY27})
+ black.lib2to3_parse(straddling, {TargetVersion.PY36})
+ black.lib2to3_parse(straddling, {TargetVersion.PY27, TargetVersion.PY36})
+
+ py2_only = "print x"
+ black.lib2to3_parse(py2_only)
+ black.lib2to3_parse(py2_only, {TargetVersion.PY27})
+ with self.assertRaises(black.InvalidInput):
+ black.lib2to3_parse(py2_only, {TargetVersion.PY36})
+ with self.assertRaises(black.InvalidInput):
+ black.lib2to3_parse(py2_only, {TargetVersion.PY27, TargetVersion.PY36})
+
+ py3_only = "exec(x, end=y)"
+ black.lib2to3_parse(py3_only)
+ with self.assertRaises(black.InvalidInput):
+ black.lib2to3_parse(py3_only, {TargetVersion.PY27})
+ black.lib2to3_parse(py3_only, {TargetVersion.PY36})
+ black.lib2to3_parse(py3_only, {TargetVersion.PY27, TargetVersion.PY36})
def test_get_features_used(self) -> None:
node = black.lib2to3_parse("def f(*, arg): ...\n")
self.assertEqual(black.get_features_used(node), set())
node = black.lib2to3_parse("def f(*, arg,): ...\n")
- self.assertEqual(black.get_features_used(node), {Feature.TRAILING_COMMA})
+ self.assertEqual(black.get_features_used(node), {Feature.TRAILING_COMMA_IN_DEF})
+ node = black.lib2to3_parse("f(*arg,)\n")
+ self.assertEqual(
+ black.get_features_used(node), {Feature.TRAILING_COMMA_IN_CALL}
+ )
node = black.lib2to3_parse("def f(*, arg): f'string'\n")
self.assertEqual(black.get_features_used(node), {Feature.F_STRINGS})
node = black.lib2to3_parse("123_456\n")
self.assertEqual(black.get_features_used(node), set())
source, expected = read_data("function")
node = black.lib2to3_parse(source)
- self.assertEqual(
- black.get_features_used(node), {Feature.TRAILING_COMMA, Feature.F_STRINGS}
- )
+ expected_features = {
+ Feature.TRAILING_COMMA_IN_CALL,
+ Feature.TRAILING_COMMA_IN_DEF,
+ Feature.F_STRINGS,
+ }
+ self.assertEqual(black.get_features_used(node), expected_features)
node = black.lib2to3_parse(expected)
- self.assertEqual(
- black.get_features_used(node), {Feature.TRAILING_COMMA, Feature.F_STRINGS}
- )
+ self.assertEqual(black.get_features_used(node), expected_features)
source, expected = read_data("expression")
node = black.lib2to3_parse(source)
self.assertEqual(black.get_features_used(node), set())
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)
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)
two = black.read_cache(short_mode)
self.assertNotIn(path, two)
+ def test_tricky_unicode_symbols(self) -> None:
+ source, expected = read_data("tricky_unicode_symbols")
+ actual = fs(source)
+ self.assertFormatEqual(expected, actual)
+ black.assert_equivalent(source, actual)
+ black.assert_stable(source, actual, black.FileMode())
+
def test_single_file_force_pyi(self) -> None:
reg_mode = black.FileMode()
pyi_mode = black.FileMode(is_pyi=True)
self.assertIn(path, pyi_cache)
self.assertNotIn(path, normal_cache)
+ def test_collections(self) -> None:
+ source, expected = read_data("collections")
+ actual = fs(source)
+ self.assertFormatEqual(expected, actual)
+ black.assert_equivalent(source, actual)
+ black.assert_stable(source, actual, black.FileMode())
+
def test_pipe_force_py36(self) -> None:
source, expected = read_data("force_py36")
result = CliRunner().invoke(
include = re.compile(r"\.pyi?$")
exclude = re.compile(r"/exclude/|/\.definitely_exclude/")
report = black.Report()
+ gitignore = PathSpec.from_lines("gitwildmatch", [])
+ sources: List[Path] = []
+ expected = [
+ Path(path / "b/dont_exclude/a.py"),
+ Path(path / "b/dont_exclude/a.pyi"),
+ ]
+ this_abs = THIS_DIR.resolve()
+ sources.extend(
+ black.gen_python_files_in_dir(
+ path, this_abs, include, exclude, report, gitignore
+ )
+ )
+ self.assertEqual(sorted(expected), sorted(sources))
+
+ def test_gitignore_exclude(self) -> None:
+ path = THIS_DIR / "data" / "include_exclude_tests"
+ include = re.compile(r"\.pyi?$")
+ exclude = re.compile(r"")
+ report = black.Report()
+ gitignore = PathSpec.from_lines(
+ "gitwildmatch", ["exclude/", ".definitely_exclude"]
+ )
sources: List[Path] = []
expected = [
Path(path / "b/dont_exclude/a.py"),
]
this_abs = THIS_DIR.resolve()
sources.extend(
- black.gen_python_files_in_dir(path, this_abs, include, exclude, report)
+ black.gen_python_files_in_dir(
+ path, this_abs, include, exclude, report, gitignore
+ )
)
self.assertEqual(sorted(expected), sorted(sources))
def test_empty_include(self) -> None:
path = THIS_DIR / "data" / "include_exclude_tests"
report = black.Report()
+ gitignore = PathSpec.from_lines("gitwildmatch", [])
empty = re.compile(r"")
sources: List[Path] = []
expected = [
this_abs = THIS_DIR.resolve()
sources.extend(
black.gen_python_files_in_dir(
- path, this_abs, empty, re.compile(black.DEFAULT_EXCLUDES), report
+ path,
+ this_abs,
+ empty,
+ re.compile(black.DEFAULT_EXCLUDES),
+ report,
+ gitignore,
)
)
self.assertEqual(sorted(expected), sorted(sources))
def test_empty_exclude(self) -> None:
path = THIS_DIR / "data" / "include_exclude_tests"
report = black.Report()
+ gitignore = PathSpec.from_lines("gitwildmatch", [])
empty = re.compile(r"")
sources: List[Path] = []
expected = [
this_abs = THIS_DIR.resolve()
sources.extend(
black.gen_python_files_in_dir(
- path, this_abs, re.compile(black.DEFAULT_INCLUDES), empty, report
+ path,
+ this_abs,
+ re.compile(black.DEFAULT_INCLUDES),
+ empty,
+ report,
+ gitignore,
)
)
self.assertEqual(sorted(expected), sorted(sources))
include = re.compile(black.DEFAULT_INCLUDES)
exclude = re.compile(black.DEFAULT_EXCLUDES)
report = black.Report()
+ gitignore = PathSpec.from_lines("gitwildmatch", [])
# `child` should behave like a symlink which resolved path is clearly
# outside of the `root` directory.
path.iterdir.return_value = [child]
child.resolve.return_value = Path("/a/b/c")
+ child.as_posix.return_value = "/a/b/c"
child.is_symlink.return_value = True
try:
- list(black.gen_python_files_in_dir(path, root, include, exclude, report))
+ list(
+ black.gen_python_files_in_dir(
+ path, root, include, exclude, report, gitignore
+ )
+ )
except ValueError as ve:
self.fail(f"`get_python_files_in_dir()` failed: {ve}")
path.iterdir.assert_called_once()
# outside of the `root` directory.
child.is_symlink.return_value = False
with self.assertRaises(ValueError):
- list(black.gen_python_files_in_dir(path, root, include, exclude, report))
+ list(
+ black.gen_python_files_in_dir(
+ path, root, include, exclude, report, gitignore
+ )
+ )
path.iterdir.assert_called()
self.assertEqual(path.iterdir.call_count, 2)
child.resolve.assert_called()
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)
+
+ def test_invalid_config_return_code(self) -> None:
+ tmp_file = Path(black.dump_to_file())
+ try:
+ tmp_config = Path(black.dump_to_file())
+ tmp_config.unlink()
+ args = ["--config", str(tmp_config), str(tmp_file)]
+ self.invokeBlack(args, exit_code=2, ignore_config=False)
+ finally:
+ tmp_file.unlink()
+
+
+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.PROTOCOL_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.PROTOCOL_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_diff(self) -> None:
+ diff_header = re.compile(
+ rf"(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")
+
+ 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)
+
+ @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:
- app = blackd.make_app()
code = (
"def f(\n"
" and_has_a_bunch_of,\n"
"):\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("3.5,3.7", 200)
- await check("3.5,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)
- @unittest.skipUnless(has_blackd_deps, "blackd's dependencies are not installed")
- @async_test
- async def test_blackd_fast(self) -> None:
- with open(os.devnull, "w") as dn, redirect_stderr(dn):
- app = blackd.make_app()
- async with TestClient(TestServer(app)) as client:
- response = await client.post("/", data=b"ur'hello'")
- self.assertEqual(response.status, 500)
- self.assertIn("failed to parse source file", await response.text())
- response = await client.post(
- "/", data=b"ur'hello'", headers={blackd.FAST_OR_SAFE_HEADER: "fast"}
- )
- self.assertEqual(response.status, 200)
+ 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)
+ response = await self.client.post(
+ "/", data=b'print("hello")\n', headers={blackd.LINE_LENGTH_HEADER: "NaN"}
+ )
+ self.assertEqual(response.status, 400)
+ @skip_if_exception("ClientOSError")
@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)
+ @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))
if __name__ == "__main__":
projects / etc / vim.git / blobdiff