from typing import Any, List, Tuple, Iterator
import unittest
from unittest.mock import patch
+import re
from click import unstyle
from click.testing import CliRunner
self.assertFormatEqual(expected, actual)
black.assert_equivalent(source, actual)
black.assert_stable(source, actual, line_length=ll)
+ mode = black.FileMode.NO_STRING_NORMALIZATION
+ not_normalized = fs(source, mode=mode)
+ self.assertFormatEqual(source, not_normalized)
+ black.assert_equivalent(source, not_normalized)
+ black.assert_stable(source, not_normalized, line_length=ll, mode=mode)
@patch("black.dump_to_file", dump_to_stderr)
def test_slices(self) -> None:
black.assert_equivalent(source, actual)
black.assert_stable(source, actual, line_length=ll)
- def test_report(self) -> None:
- report = black.Report()
+ def test_report_verbose(self) -> None:
+ report = black.Report(verbose=True)
out_lines = []
err_lines = []
"2 files failed to reformat.",
)
self.assertEqual(report.return_code, 123)
- report.done(Path("f4"), black.Changed.NO)
+ report.path_ignored(Path("wat"), "no match")
self.assertEqual(len(out_lines), 5)
self.assertEqual(len(err_lines), 2)
+ 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.",
+ )
+ self.assertEqual(report.return_code, 123)
+ report.done(Path("f4"), black.Changed.NO)
+ self.assertEqual(len(out_lines), 6)
+ self.assertEqual(len(err_lines), 2)
self.assertEqual(out_lines[-1], "f4 already well formatted, good job.")
self.assertEqual(
unstyle(str(report)),
"2 files would fail to reformat.",
)
+ def test_report_quiet(self) -> None:
+ report = black.Report(quiet=True)
+ out_lines = []
+ err_lines = []
+
+ def out(msg: str, **kwargs: Any) -> None:
+ out_lines.append(msg)
+
+ def err(msg: str, **kwargs: Any) -> None:
+ err_lines.append(msg)
+
+ with patch("black.out", out), patch("black.err", err):
+ report.done(Path("f1"), black.Changed.NO)
+ self.assertEqual(len(out_lines), 0)
+ self.assertEqual(len(err_lines), 0)
+ self.assertEqual(unstyle(str(report)), "1 file left unchanged.")
+ self.assertEqual(report.return_code, 0)
+ report.done(Path("f2"), black.Changed.YES)
+ self.assertEqual(len(out_lines), 0)
+ self.assertEqual(len(err_lines), 0)
+ self.assertEqual(
+ unstyle(str(report)), "1 file reformatted, 1 file left unchanged."
+ )
+ report.done(Path("f3"), black.Changed.CACHED)
+ self.assertEqual(len(out_lines), 0)
+ self.assertEqual(len(err_lines), 0)
+ self.assertEqual(
+ unstyle(str(report)), "1 file reformatted, 2 files left unchanged."
+ )
+ self.assertEqual(report.return_code, 0)
+ report.check = True
+ self.assertEqual(report.return_code, 1)
+ report.check = False
+ report.failed(Path("e1"), "boom")
+ self.assertEqual(len(out_lines), 0)
+ self.assertEqual(len(err_lines), 1)
+ 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.",
+ )
+ self.assertEqual(report.return_code, 123)
+ report.done(Path("f3"), black.Changed.YES)
+ self.assertEqual(len(out_lines), 0)
+ self.assertEqual(len(err_lines), 1)
+ self.assertEqual(
+ unstyle(str(report)),
+ "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(len(out_lines), 0)
+ self.assertEqual(len(err_lines), 2)
+ 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.",
+ )
+ self.assertEqual(report.return_code, 123)
+ report.path_ignored(Path("wat"), "no match")
+ self.assertEqual(len(out_lines), 0)
+ self.assertEqual(len(err_lines), 2)
+ self.assertEqual(
+ unstyle(str(report)),
+ "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(out_lines), 0)
+ self.assertEqual(len(err_lines), 2)
+ self.assertEqual(
+ unstyle(str(report)),
+ "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.",
+ )
+
+ def test_report_normal(self) -> None:
+ report = black.Report()
+ out_lines = []
+ err_lines = []
+
+ def out(msg: str, **kwargs: Any) -> None:
+ out_lines.append(msg)
+
+ def err(msg: str, **kwargs: Any) -> None:
+ err_lines.append(msg)
+
+ with patch("black.out", out), patch("black.err", err):
+ report.done(Path("f1"), black.Changed.NO)
+ self.assertEqual(len(out_lines), 0)
+ self.assertEqual(len(err_lines), 0)
+ self.assertEqual(unstyle(str(report)), "1 file left unchanged.")
+ self.assertEqual(report.return_code, 0)
+ report.done(Path("f2"), black.Changed.YES)
+ self.assertEqual(len(out_lines), 1)
+ self.assertEqual(len(err_lines), 0)
+ self.assertEqual(out_lines[-1], "reformatted f2")
+ self.assertEqual(
+ unstyle(str(report)), "1 file reformatted, 1 file left unchanged."
+ )
+ report.done(Path("f3"), black.Changed.CACHED)
+ self.assertEqual(len(out_lines), 1)
+ self.assertEqual(len(err_lines), 0)
+ self.assertEqual(out_lines[-1], "reformatted f2")
+ self.assertEqual(
+ unstyle(str(report)), "1 file reformatted, 2 files left unchanged."
+ )
+ self.assertEqual(report.return_code, 0)
+ report.check = True
+ self.assertEqual(report.return_code, 1)
+ report.check = False
+ report.failed(Path("e1"), "boom")
+ self.assertEqual(len(out_lines), 1)
+ self.assertEqual(len(err_lines), 1)
+ 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.",
+ )
+ self.assertEqual(report.return_code, 123)
+ report.done(Path("f3"), black.Changed.YES)
+ self.assertEqual(len(out_lines), 2)
+ self.assertEqual(len(err_lines), 1)
+ self.assertEqual(out_lines[-1], "reformatted f3")
+ self.assertEqual(
+ unstyle(str(report)),
+ "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(len(out_lines), 2)
+ self.assertEqual(len(err_lines), 2)
+ 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.",
+ )
+ self.assertEqual(report.return_code, 123)
+ report.path_ignored(Path("wat"), "no match")
+ self.assertEqual(len(out_lines), 2)
+ self.assertEqual(len(err_lines), 2)
+ self.assertEqual(
+ unstyle(str(report)),
+ "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(out_lines), 2)
+ self.assertEqual(len(err_lines), 2)
+ self.assertEqual(
+ unstyle(str(report)),
+ "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.",
+ )
+
def test_is_python36(self) -> None:
node = black.lib2to3_parse("def f(*, arg): ...\n")
self.assertFalse(black.is_python36(node))
def test_broken_symlink(self) -> None:
with cache_dir() as workspace:
symlink = workspace / "broken_link.py"
- symlink.symlink_to("nonexistent.py")
+ try:
+ symlink.symlink_to("nonexistent.py")
+ except OSError as e:
+ self.skipTest(f"Can't create symlinks: {e}")
result = CliRunner().invoke(black.main, [str(workspace.resolve())])
self.assertEqual(result.exit_code, 0)
actual = result.output
self.assertFormatEqual(actual, expected)
+ def test_include_exclude(self) -> None:
+ path = THIS_DIR / "include_exclude_tests"
+ include = re.compile(r"\.pyi?$")
+ exclude = re.compile(r"/exclude/|/\.definitely_exclude/")
+ report = black.Report()
+ sources: List[Path] = []
+ expected = [
+ Path(THIS_DIR / "include_exclude_tests/b/dont_exclude/a.py"),
+ Path(THIS_DIR / "include_exclude_tests/b/dont_exclude/a.pyi"),
+ ]
+ this_abs = THIS_DIR.resolve()
+ sources.extend(
+ black.gen_python_files_in_dir(path, this_abs, include, exclude, report)
+ )
+ self.assertEqual(sorted(expected), sorted(sources))
+
+ def test_empty_include(self) -> None:
+ path = THIS_DIR / "include_exclude_tests"
+ report = black.Report()
+ empty = re.compile(r"")
+ sources: List[Path] = []
+ expected = [
+ Path(path / "b/exclude/a.pie"),
+ Path(path / "b/exclude/a.py"),
+ Path(path / "b/exclude/a.pyi"),
+ Path(path / "b/dont_exclude/a.pie"),
+ Path(path / "b/dont_exclude/a.py"),
+ Path(path / "b/dont_exclude/a.pyi"),
+ Path(path / "b/.definitely_exclude/a.pie"),
+ Path(path / "b/.definitely_exclude/a.py"),
+ Path(path / "b/.definitely_exclude/a.pyi"),
+ ]
+ this_abs = THIS_DIR.resolve()
+ sources.extend(
+ black.gen_python_files_in_dir(
+ path, this_abs, empty, re.compile(black.DEFAULT_EXCLUDES), report
+ )
+ )
+ self.assertEqual(sorted(expected), sorted(sources))
+
+ def test_empty_exclude(self) -> None:
+ path = THIS_DIR / "include_exclude_tests"
+ report = black.Report()
+ empty = re.compile(r"")
+ sources: List[Path] = []
+ expected = [
+ Path(path / "b/dont_exclude/a.py"),
+ Path(path / "b/dont_exclude/a.pyi"),
+ Path(path / "b/exclude/a.py"),
+ Path(path / "b/exclude/a.pyi"),
+ Path(path / "b/.definitely_exclude/a.py"),
+ Path(path / "b/.definitely_exclude/a.pyi"),
+ ]
+ this_abs = THIS_DIR.resolve()
+ sources.extend(
+ black.gen_python_files_in_dir(
+ path, this_abs, re.compile(black.DEFAULT_INCLUDES), empty, report
+ )
+ )
+ self.assertEqual(sorted(expected), sorted(sources))
+
+ def test_invalid_include_exclude(self) -> None:
+ for option in ["--include", "--exclude"]:
+ result = CliRunner().invoke(black.main, ["-", option, "**()(!!*)"])
+ self.assertEqual(result.exit_code, 2)
+
if __name__ == "__main__":
unittest.main()