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# Copyright (c) 2013 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import re
import subprocess
import sys
import tempfile
import pkg_resources
import testscenarios
from testtools import content
import hacking.tests
SELFTEST_REGEX = re.compile(r'\b(Okay|[HEW]\d{3}):\s(.*)')
# Each scenario is (name, {lines=.., raw=..., code=...})
file_cases = []
class HackingTestCase(hacking.tests.TestCase):
scenarios = file_cases
def test_flake8(self):
with tempfile.NamedTemporaryFile(mode='w', delete=False) as f:
f.write(''.join(self.lines))
cmd = [sys.executable, '-mflake8', '--isolated',
'--select=%s' % self.code, '--ignore=F',
'--format=%(code)s\t%(path)s\t%(row)d', f.name]
out, _ = subprocess.Popen(cmd, stdout=subprocess.PIPE).communicate()
out = out.decode('utf-8')
if self.code == 'Okay':
self.assertEqual('', out)
else:
self.addDetail('reason',
content.text_content("Failed to trigger rule %s" %
self.code))
self.assertNotEqual('', out)
self.assertEqual(self.code, out.split('\t')[0].rstrip(':'), out)
os.remove(f.name)
def _get_lines(check):
for line in check.__doc__.splitlines():
line = line.lstrip()
match = SELFTEST_REGEX.match(line)
if match is None:
continue
yield line, match.groups()
def load_tests(loader, tests, pattern):
for entry in pkg_resources.iter_entry_points('flake8.extension'):
if not entry.module_name.startswith('hacking.'):
continue
check = entry.load()
if check.skip_on_py3:
continue
name = entry.attrs[0]
for lineno, (raw, (code, source)) in enumerate(_get_lines(check)):
lines = [part.replace(r'\t', '\t') + '\n'
for part in source.split(r'\n')]
file_cases.append((
'%s-%s-line-%s' % (entry.name, name, lineno),
{'lines': lines, 'raw': raw, 'code': code},
))
return testscenarios.load_tests_apply_scenarios(loader, tests, pattern)
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