8372f48b7a
Change-Id: Ibd4c9811daa6e9e692457ce480a58c964fef7cb9 Signed-off-by: Julien Danjou <julien@danjou.info>
90 lines
3.7 KiB
Python
90 lines
3.7 KiB
Python
# Copyright 2015 Huawei Technologies Co., Ltd.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import textwrap
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import mock
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import pep8
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from testtools import testcase
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from aodh.hacking import checks
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class HackingTestCase(testcase.TestCase):
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"""Test cases for aodh specific hacking rules.
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This class tests the hacking checks in aodh.hacking.checks by
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passing strings to the check methods like the pep8/flake8 parser would.
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The parser loops over each line in the file and then passes the parameters
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to the check method. The parameter names in the check method dictate what
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type of object is passed to the check method. The parameter types are::
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logical_line: A processed line with the following modifications:
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- Multi-line statements converted to a single line.
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- Stripped left and right.
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- Contents of strings replaced with "xxx" of same length.
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- Comments removed.
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physical_line: Raw line of text from the input file.
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lines: a list of the raw lines from the input file
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tokens: the tokens that contribute to this logical line
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line_number: line number in the input file
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total_lines: number of lines in the input file
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blank_lines: blank lines before this one
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indent_char: indentation character in this file (" " or "\t")
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indent_level: indentation (with tabs expanded to multiples of 8)
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previous_indent_level: indentation on previous line
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previous_logical: previous logical line
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filename: Path of the file being run through pep8
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When running a test on a check method the return will be False/None if
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there is no violation in the sample input. If there is an error a tuple is
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returned with a position in the line, and a message. So to check the result
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just assertTrue if the check is expected to fail and assertFalse if it
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should pass.
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"""
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# We are patching pep8 so that only the check under test is actually
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# installed.
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@mock.patch('pep8._checks',
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{'physical_line': {}, 'logical_line': {}, 'tree': {}})
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def _run_check(self, code, checker, filename=None):
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pep8.register_check(checker)
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lines = textwrap.dedent(code).strip().splitlines(True)
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checker = pep8.Checker(filename=filename, lines=lines)
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checker.check_all()
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checker.report._deferred_print.sort()
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return checker.report._deferred_print
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def _assert_has_errors(self, code, checker, expected_errors=None,
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filename=None):
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actual_errors = [e[:3] for e in
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self._run_check(code, checker, filename)]
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self.assertEqual(expected_errors or [], actual_errors)
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def test_oslo_namespace_imports_check(self):
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codes = [
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"from oslo.config import cfg",
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"import oslo.i18n",
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"from oslo.utils import timeutils",
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"from oslo.serialization import jsonutils",
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]
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for code in codes:
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self._assert_has_errors(code, checks.check_oslo_namespace_imports,
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expected_errors=[(1, 0, "C300")])
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self._assert_has_errors(
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code, checks.check_oslo_namespace_imports,
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filename="aodh/openstack/common/xyz.py")
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