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[etc/vim.git] / tests / test_format.py
1 from unittest.mock import patch
2
3 import black
4 import pytest
5 from parameterized import parameterized
6
7 from tests.util import (
8     BlackBaseTestCase,
9     fs,
10     DEFAULT_MODE,
11     dump_to_stderr,
12     read_data,
13     THIS_DIR,
14 )
15
16 SIMPLE_CASES = [
17     "beginning_backslash",
18     "bracketmatch",
19     "class_blank_parentheses",
20     "class_methods_new_line",
21     "collections",
22     "comments",
23     "comments2",
24     "comments3",
25     "comments4",
26     "comments5",
27     "comments6",
28     "comments_non_breaking_space",
29     "comment_after_escaped_newline",
30     "composition",
31     "composition_no_trailing_comma",
32     "docstring",
33     "empty_lines",
34     "expression",
35     "fmtonoff",
36     "fmtonoff2",
37     "fmtonoff3",
38     "fmtonoff4",
39     "fmtskip",
40     "fmtskip2",
41     "fmtskip3",
42     "fmtskip4",
43     "fmtskip5",
44     "fmtskip6",
45     "fstring",
46     "function",
47     "function2",
48     "function_trailing_comma",
49     "import_spacing",
50     "remove_parens",
51     "slices",
52     "string_prefixes",
53     "tricky_unicode_symbols",
54     "tupleassign",
55 ]
56
57 SIMPLE_CASES_PY2 = [
58     "numeric_literals_py2",
59     "python2",
60     "python2_unicode_literals",
61 ]
62
63 EXPERIMENTAL_STRING_PROCESSING_CASES = [
64     "cantfit",
65     "comments7",
66     "long_strings",
67     "long_strings__edge_case",
68     "long_strings__regression",
69     "percent_precedence",
70 ]
71
72
73 SOURCES = [
74     "src/black/__init__.py",
75     "src/black/__main__.py",
76     "src/black/brackets.py",
77     "src/black/cache.py",
78     "src/black/comments.py",
79     "src/black/concurrency.py",
80     "src/black/const.py",
81     "src/black/debug.py",
82     "src/black/files.py",
83     "src/black/linegen.py",
84     "src/black/lines.py",
85     "src/black/mode.py",
86     "src/black/nodes.py",
87     "src/black/numerics.py",
88     "src/black/output.py",
89     "src/black/parsing.py",
90     "src/black/report.py",
91     "src/black/rusty.py",
92     "src/black/strings.py",
93     "src/black/trans.py",
94     "src/blackd/__init__.py",
95     "src/blib2to3/pygram.py",
96     "src/blib2to3/pytree.py",
97     "src/blib2to3/pgen2/conv.py",
98     "src/blib2to3/pgen2/driver.py",
99     "src/blib2to3/pgen2/grammar.py",
100     "src/blib2to3/pgen2/literals.py",
101     "src/blib2to3/pgen2/parse.py",
102     "src/blib2to3/pgen2/pgen.py",
103     "src/blib2to3/pgen2/tokenize.py",
104     "src/blib2to3/pgen2/token.py",
105     "setup.py",
106     "tests/test_black.py",
107     "tests/test_blackd.py",
108     "tests/test_format.py",
109     "tests/test_primer.py",
110     "tests/optional.py",
111     "tests/util.py",
112     "tests/conftest.py",
113 ]
114
115
116 class TestSimpleFormat(BlackBaseTestCase):
117     @parameterized.expand(SIMPLE_CASES_PY2)
118     @pytest.mark.python2
119     @patch("black.dump_to_file", dump_to_stderr)
120     def test_simple_format_py2(self, filename: str) -> None:
121         self.check_file(filename, DEFAULT_MODE)
122
123     @parameterized.expand(SIMPLE_CASES)
124     @patch("black.dump_to_file", dump_to_stderr)
125     def test_simple_format(self, filename: str) -> None:
126         self.check_file(filename, DEFAULT_MODE)
127
128     @parameterized.expand(EXPERIMENTAL_STRING_PROCESSING_CASES)
129     @patch("black.dump_to_file", dump_to_stderr)
130     def test_experimental_format(self, filename: str) -> None:
131         self.check_file(filename, black.Mode(experimental_string_processing=True))
132
133     @parameterized.expand(SOURCES)
134     @patch("black.dump_to_file", dump_to_stderr)
135     def test_source_is_formatted(self, filename: str) -> None:
136         path = THIS_DIR.parent / filename
137         self.check_file(str(path), DEFAULT_MODE, data=False)
138
139     def check_file(self, filename: str, mode: black.Mode, *, data: bool = True) -> None:
140         source, expected = read_data(filename, data=data)
141         actual = fs(source, mode=mode)
142         self.assertFormatEqual(expected, actual)
143         if source != actual:
144             black.assert_equivalent(source, actual)
145             black.assert_stable(source, actual, mode)