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test_violation.py
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/
test_violation.py
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"""Tests for the flake8.style_guide.Violation class."""
import mock
import pytest
from flake8 import style_guide
@pytest.mark.parametrize('error_code,physical_line,expected_result', [
('E111', 'a = 1', False),
('E121', 'a = 1 # noqa: E111', False),
('E121', 'a = 1 # noqa: E111,W123,F821', False),
('E111', 'a = 1 # noqa: E111,W123,F821', True),
('W123', 'a = 1 # noqa: E111,W123,F821', True),
('W123', 'a = 1 # noqa: E111, W123,F821', True),
('E111', 'a = 1 # noqa: E11,W123,F821', True),
('E121', 'a = 1 # noqa:E111,W123,F821', False),
('E111', 'a = 1 # noqa:E111,W123,F821', True),
('W123', 'a = 1 # noqa:E111,W123,F821', True),
('W123', 'a = 1 # noqa:E111, W123,F821', True),
('E111', 'a = 1 # noqa:E11,W123,F821', True),
('E111', 'a = 1 # noqa, analysis:ignore', True),
('E111', 'a = 1 # noqa analysis:ignore', True),
('E111', 'a = 1 # noqa - We do not care', True),
('E111', 'a = 1 # noqa: We do not care', True),
('E111', 'a = 1 # noqa:We do not care', True),
('ABC123', 'a = 1 # noqa: ABC123', True),
('E111', 'a = 1 # noqa: ABC123', False),
('ABC123', 'a = 1 # noqa: ABC124', False),
])
def test_is_inline_ignored(error_code, physical_line, expected_result):
"""Verify that we detect inline usage of ``# noqa``."""
error = style_guide.Violation(
error_code, 'filename.py', 1, 1, 'error text', None)
# We want `None` to be passed as the physical line so we actually use our
# monkey-patched linecache.getline value.
with mock.patch('linecache.getline', return_value=physical_line):
assert error.is_inline_ignored(False) is expected_result
def test_disable_is_inline_ignored():
"""Verify that is_inline_ignored exits immediately if disabling NoQA."""
error = style_guide.Violation(
'E121', 'filename.py', 1, 1, 'error text', 'line')
with mock.patch('linecache.getline') as getline:
assert error.is_inline_ignored(True) is False
assert getline.called is False
@pytest.mark.parametrize('violation_file,violation_line,diff,expected', [
('file.py', 10, {}, True),
('file.py', 1, {'file.py': range(1, 2)}, True),
('file.py', 10, {'file.py': range(1, 2)}, False),
('file.py', 1, {'other.py': range(1, 2)}, False),
('file.py', 10, {'other.py': range(1, 2)}, False),
])
def test_violation_is_in_diff(violation_file, violation_line, diff, expected):
"""Verify that we find violations within a diff."""
violation = style_guide.Violation(
'E001', violation_file, violation_line, 1, 'warning', 'line',
)
assert violation.is_in(diff) is expected