def test_black_options_skip_string_normalization(git_repo, config, options, expect):
"""Black string normalization config and cmdline option are combined correctly"""
added_files = git_repo.add(
{"main.py": "foo", "pyproject.toml": joinlines(["[tool.black]"] + config)},
commit="Initial commit",
)
added_files["main.py"].write_bytes(b"bar")
mode_class_mock = Mock(wraps=black_diff.Mode)
# Speed up tests by mocking `format_str` to skip running Black
format_str = Mock(return_value="bar")
with patch.multiple(black_diff, Mode=mode_class_mock, format_str=format_str):
main(options + [str(path) for path in added_files.values()])
assert mode_class_mock.call_args_list == [expect]
def test_revision(git_repo, monkeypatch, capsys, revision, worktree_content,
expect):
monkeypatch.chdir(git_repo.root)
# 2: HEAD~2:
paths = git_repo.add(
{
"+2.py": "ORIGINAL=1\n",
"+2M1.py": "ORIGINAL=1\n",
"+2-1.py": "ORIGINAL=1\n",
"+2M1-0.py": "ORIGINAL=1\n",
},
commit="First commit",
)
# 1: HEAD~1 i.e. HEAD^
paths.update(
git_repo.add(
{
"+2M1.py": "MODIFIED=1\n",
"+1.py": "ORIGINAL=1\n",
"+1M0.py": "ORIGINAL=1\n",
"+2-1.py": None,
"+2M1-0.py": "MODIFIED=1\n",
},
commit="Second commit",
))
# 0: HEAD~0 i.e. HEAD:
git_repo.add(
{
"+1M0.py": "MODIFIED=1\n",
"+2M1-0.py": None
},
commit="Third commit",
)
# Working tree:
for path in paths.values():
path.write_bytes(worktree_content)
arguments = ["--diff", "--revision", revision, "."]
with raises_if_exception(expect):
main(arguments)
modified_files = [
line[4:-3] for line in capsys.readouterr().out.splitlines()
if line.startswith("+++ ")
]
assert modified_files == expect
def test_black_options(monkeypatch, tmpdir, git_repo, options, expect):
monkeypatch.chdir(tmpdir)
(tmpdir / 'pyproject.toml').write("[tool.black]\n")
(tmpdir / 'black.cfg').write(
dedent("""
[tool.black]
line-length = 81
skip-string-normalization = false
"""))
added_files = git_repo.add({"main.py": 'print("Hello World!")\n'},
commit="Initial commit")
added_files["main.py"].write_bytes(b'print ("Hello World!")\n')
with patch.object(black_diff, 'Mode', wraps=black_diff.Mode) as Mode:
main(options + [str(path) for path in added_files.values()])
_, expect_args, expect_kwargs = expect
Mode.assert_called_once_with(*expect_args, **expect_kwargs)
def test_main_retval(check, changes, expect_retval):
"""main() return value is correct based on --check and the need to reformat files"""
format_edited_parts = Mock()
format_edited_parts.return_value = ([(Path('/dummy.py'), 'old\n', 'new\n',
['new'])] if changes else [])
check_arg_maybe = ['--check'] if check else []
with patch.multiple('darker.__main__',
format_edited_parts=format_edited_parts,
modify_file=DEFAULT):
retval = main(check_arg_maybe + ['a.py'])
assert retval == expect_retval
def test_options(tmpdir, monkeypatch, options, expect):
"""The main engine is called with correct parameters based on the command line
Executed in a clean directory so Darker's own ``pyproject.toml`` doesn't interfere.
"""
monkeypatch.chdir(tmpdir)
(tmpdir / "my.cfg").write("")
with patch('darker.__main__.format_edited_parts') as format_edited_parts:
retval = main(options)
format_edited_parts.assert_called_once_with(*expect)
assert retval == 0
def test_main_retval(check, changes, expect_retval):
"""main() return value is correct based on --check and the need to reformat files"""
format_edited_parts = Mock()
format_edited_parts.return_value = ([(
Path("/dummy.py"),
TextDocument.from_lines(["old"]),
TextDocument.from_lines(["new"]),
)] if changes else [])
check_arg_maybe = ['--check'] if check else []
with patch.multiple('darker.__main__',
format_edited_parts=format_edited_parts,
modify_file=DEFAULT):
retval = main(check_arg_maybe + ['a.py'])
assert retval == expect_retval
def test_options(git_repo, options, expect):
"""The main engine is called with correct parameters based on the command line
Executed in a clean directory so Darker's own ``pyproject.toml`` doesn't interfere.
"""
paths = git_repo.add(
{"a.py": "1\n", "b.py": "2\n", "my.cfg": ""}, commit="Initial commit"
)
paths["a.py"].write_bytes(b"one\n")
with patch('darker.__main__.format_edited_parts') as format_edited_parts:
retval = main(options)
expect = (Path(git_repo.root), expect[1]) + expect[2:]
format_edited_parts.assert_called_once_with(*expect)
assert retval == 0
def test_options(options, expect):
with patch('darker.__main__.format_edited_parts') as format_edited_parts:
main(options)
format_edited_parts.assert_called_once_with(*expect)