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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright 2020 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Tests for bisect_clang_crashes."""
# pylint: disable=cros-logging-import
import glob
import logging
import os.path
import subprocess
import unittest
import unittest.mock as mock
import bisect_clang_crashes
class Test(unittest.TestCase):
"""Tests for bisect_clang_crashes."""
class _SilencingFilter(object):
"""Silences all log messages.
Also collects info about log messages that would've been emitted.
"""
def __init__(self):
self.messages = []
def filter(self, record):
self.messages.append(record.getMessage())
return 0
@mock.patch.object(subprocess, 'check_output')
def test_get_artifacts(self, mock_gsutil_ls):
pattern = 'gs://chromeos-toolchain-artifacts/clang-crash-diagnoses/' \
'**/*clang_crash_diagnoses.tar.xz'
mock_gsutil_ls.return_value = 'artifact1\nartifact2\nartifact3'
results = bisect_clang_crashes.get_artifacts(pattern)
self.assertEqual(results, ['artifact1', 'artifact2', 'artifact3'])
mock_gsutil_ls.assert_called_once_with(['gsutil.py', 'ls', pattern],
stderr=subprocess.STDOUT,
encoding='utf-8')
@mock.patch.object(os.path, 'exists')
@mock.patch.object(glob, 'glob')
def test_get_crash_reproducers_succeed(self, mock_file_search,
mock_file_check):
working_dir = 'SomeDirectory'
mock_file_search.return_value = ['a.c', 'b.cpp', 'c.cc']
mock_file_check.side_effect = [True, True, True]
results = bisect_clang_crashes.get_crash_reproducers(working_dir)
mock_file_search.assert_called_once_with('%s/*.c*' % working_dir)
self.assertEqual(mock_file_check.call_count, 3)
self.assertEqual(mock_file_check.call_args_list[0], mock.call('a.sh'))
self.assertEqual(mock_file_check.call_args_list[1], mock.call('b.sh'))
self.assertEqual(mock_file_check.call_args_list[2], mock.call('c.sh'))
self.assertEqual(results, [('a.c', 'a.sh'), ('b.cpp', 'b.sh'),
('c.cc', 'c.sh')])
@mock.patch.object(os.path, 'exists')
@mock.patch.object(glob, 'glob')
def test_get_crash_reproducers_no_matching_script(self, mock_file_search,
mock_file_check):
def silence_logging():
root = logging.getLogger()
filt = self._SilencingFilter()
root.addFilter(filt)
self.addCleanup(root.removeFilter, filt)
return filt
log_filter = silence_logging()
working_dir = 'SomeDirectory'
mock_file_search.return_value = ['a.c', 'b.cpp', 'c.cc']
mock_file_check.side_effect = [True, False, True]
results = bisect_clang_crashes.get_crash_reproducers(working_dir)
mock_file_search.assert_called_once_with('%s/*.c*' % working_dir)
self.assertEqual(mock_file_check.call_count, 3)
self.assertEqual(mock_file_check.call_args_list[0], mock.call('a.sh'))
self.assertEqual(mock_file_check.call_args_list[1], mock.call('b.sh'))
self.assertEqual(mock_file_check.call_args_list[2], mock.call('c.sh'))
self.assertEqual(results, [('a.c', 'a.sh'), ('c.cc', 'c.sh')])
self.assertTrue(
any('could not find the matching script of b.cpp' in x
for x in log_filter.messages), log_filter.messages)
if __name__ == '__main__':
unittest.main()
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