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#!/usr/bin/env python3
# Copyright 2015-2021 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
# This file is part of qutebrowser.
#
# qutebrowser is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# qutebrowser is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with qutebrowser. If not, see <https://www.gnu.org/licenses/>.
import sys
import textwrap
import pytest
from tests.helpers import testutils
try:
from scripts.dev import run_vulture
except ImportError:
if hasattr(sys, 'frozen'):
# Tests aren't going to run anyways because of the mark
pass
else:
raise
pytestmark = [pytest.mark.not_frozen]
class VultureDir:
"""Fixture similar to pytest's testdir fixture for vulture.
Attributes:
_tmp_path: The pytest tmp_path fixture.
"""
def __init__(self, tmp_path):
self._tmp_path = tmp_path
def run(self):
"""Run vulture over all generated files and return the output."""
names = [p.name for p in self._tmp_path.glob('*')]
assert names
with testutils.change_cwd(self._tmp_path):
return run_vulture.run(names)
def makepyfile(self, **kwargs):
"""Create a python file, similar to TestDir.makepyfile."""
for filename, data in kwargs.items():
text = textwrap.dedent(data)
(self._tmp_path / (filename + '.py')).write_text(text, 'utf-8')
@pytest.fixture
def vultdir(tmp_path):
return VultureDir(tmp_path)
def test_used(vultdir):
vultdir.makepyfile(foo="""
def foo():
pass
foo()
""")
assert not vultdir.run()
def test_unused_func(vultdir):
vultdir.makepyfile(foo="""
def foo():
pass
""")
msg = "*foo.py:2: unused function 'foo' (60% confidence)"
msgs = vultdir.run()
assert len(msgs) == 1
assert testutils.pattern_match(pattern=msg, value=msgs[0])
def test_unused_method_camelcase(vultdir):
"""Should be ignored because those are Qt methods."""
vultdir.makepyfile(foo="""
class Foo():
def fooBar(self):
pass
Foo()
""")
assert not vultdir.run()
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