pre-commit-hooks/tests/check_docstring_first_test.py

70 lines
1.8 KiB
Python

from __future__ import annotations
import pytest
from pre_commit_hooks.check_docstring_first import check_docstring_first
from pre_commit_hooks.check_docstring_first import main
# Contents, expected, expected_output
TESTS = (
# trivial
(b'', 0, ''),
# Acceptable
(b'"foo"', 0, ''),
# Docstring after code
(
b'from __future__ import unicode_literals\n'
b'"foo"\n',
1,
'{filename}:2: Module docstring appears after code '
'(code seen on line 1).\n',
),
# Test double docstring
(
b'"The real docstring"\n'
b'from __future__ import absolute_import\n'
b'"fake docstring"\n',
1,
'{filename}:3: Multiple module docstrings '
'(first docstring on line 1).\n',
),
# Test multiple lines of code above
(
b'import os\n'
b'import sys\n'
b'"docstring"\n',
1,
'{filename}:3: Module docstring appears after code '
'(code seen on line 1).\n',
),
# String literals in expressions are ok.
(b'x = "foo"\n', 0, ''),
)
all_tests = pytest.mark.parametrize(
('contents', 'expected', 'expected_out'), TESTS,
)
@all_tests
def test_unit(capsys, contents, expected, expected_out):
assert check_docstring_first(contents) == expected
assert capsys.readouterr()[0] == expected_out.format(filename='<unknown>')
@all_tests
def test_integration(tmpdir, capsys, contents, expected, expected_out):
f = tmpdir.join('test.py')
f.write_binary(contents)
assert main([str(f)]) == expected
assert capsys.readouterr()[0] == expected_out.format(filename=str(f))
def test_arbitrary_encoding(tmpdir):
f = tmpdir.join('f.py')
contents = '# -*- coding: cp1252\nx = "£"'.encode('cp1252')
f.write_binary(contents)
assert main([str(f)]) == 0