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#!/usr/bin/python2
# Copyright 2016 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.
"""Unit tests for the process_hot_functions module."""
from process_hot_functions import HotFunctionsProcessor, ParseArguments
import mock
import os
import shutil
import tempfile
import unittest
class ParseArgumentsTest(unittest.TestCase):
"""Test class for command line argument parsing."""
def __init__(self, *args, **kwargs):
super(ParseArgumentsTest, self).__init__(*args, **kwargs)
def testParseArguments(self):
arguments = \
['-p', 'dummy_pprof', '-c', 'dummy_common', '-e', 'dummy_extra', '-w',
'dummy_cwp']
options = ParseArguments(arguments)
self.assertEqual(options.pprof_path, 'dummy_pprof')
self.assertEqual(options.cwp_hot_functions_file, 'dummy_cwp')
self.assertEqual(options.common_functions_path, 'dummy_common')
self.assertEqual(options.extra_cwp_functions_file, 'dummy_extra')
@mock.patch('sys.exit')
def testDeathParseArguments(self, sys_exit_method):
self.assertFalse(sys_exit_method.called)
ParseArguments([])
self.assertTrue(sys_exit_method.called)
self.assertNotEqual(sys_exit_method.return_value, 0)
class HotFunctionsProcessorTest(unittest.TestCase):
"""Test class for HotFunctionsProcessor class."""
def __init__(self, *args, **kwargs):
super(HotFunctionsProcessorTest, self).__init__(*args, **kwargs)
self._pprof_path = 'testdata/input/pprof'
self._cwp_functions_file = 'testdata/input/cwp_functions_file.csv'
self._cwp_functions_file_parsing = \
'testdata/input/parse_cwp_statistics.csv'
self._common_functions_path = ''
self._expected_common_functions_path = 'testdata/expected/pprof_common'
self._extra_cwp_functions_file = ''
def _CreateHotFunctionsProcessor(self, extra_cwp_functions_file):
return HotFunctionsProcessor(self._pprof_path, self._cwp_functions_file,
self._common_functions_path,
extra_cwp_functions_file)
@mock.patch.object(HotFunctionsProcessor, 'ExtractCommonFunctions')
@mock.patch.object(HotFunctionsProcessor, 'ExtractExtraFunctions')
def testProcessHotFunctions(self, common_functions_method,
extra_functions_method):
hot_functions_processor = self._CreateHotFunctionsProcessor(
self._extra_cwp_functions_file)
hot_functions_processor.ProcessHotFunctions()
self.assertTrue(common_functions_method.called)
self.assertTrue(extra_functions_method.called)
self.assertEqual(common_functions_method.call_count, 1)
self.assertEqual(extra_functions_method.call_count, 1)
def testParseCWPStatistics(self):
cwp_statistics = {'dummy_method1,dummy_file1': ('dummy_object1,1', 0),
'dummy_method2,dummy_file2': ('dummy_object2,2', 0),
'dummy_method3,dummy_file3': ('dummy_object3,3', 0),
'dummy_method4,dummy_file4': ('dummy_object4,4', 0)}
hot_functions_processor = self._CreateHotFunctionsProcessor(
self._extra_cwp_functions_file)
result = hot_functions_processor.ParseCWPStatistics(
self._cwp_functions_file_parsing)
self.assertDictEqual(result, cwp_statistics)
def testExtractCommonFunctions(self):
hot_functions_processor = self._CreateHotFunctionsProcessor(
self._extra_cwp_functions_file)
common_functions_path = tempfile.mkdtemp()
hot_functions_processor.ExtractCommonFunctions(self._pprof_path,
common_functions_path,
self._cwp_functions_file)
expected_files = \
[os.path.join(self._expected_common_functions_path, expected_file)
for expected_file in os.listdir(self._expected_common_functions_path)]
result_files = \
[os.path.join(common_functions_path, result_file)
for result_file in os.listdir(common_functions_path)]
expected_files.sort()
result_files.sort()
for expected_file_name, result_file_name in \
zip(expected_files, result_files):
with open(expected_file_name) as expected_file, \
open(result_file_name) as result_file:
expected_output_lines = expected_file.readlines()
result_output_lines = result_file.readlines()
self.assertListEqual(expected_output_lines, result_output_lines)
shutil.rmtree(common_functions_path)
def testExtractExtraFunctions(self):
cwp_statistics = {'dummy_method1,dummy_file1': ('dummy_object1,1', 0),
'dummy_method2,dummy_file2': ('dummy_object2,2', 1),
'dummy_method3,dummy_file3': ('dummy_object3,3', 1),
'dummy_method4,dummy_file4': ('dummy_object4,4', 0)}
expected_output_lines = ['function,file,dso,inclusive_count\n',
'dummy_method1,dummy_file1,dummy_object1,1\n',
'dummy_method4,dummy_file4,dummy_object4,4']
temp_file, temp_filename = tempfile.mkstemp()
hot_functions_processor = self._CreateHotFunctionsProcessor(temp_filename)
os.close(temp_file)
hot_functions_processor.ExtractExtraFunctions(cwp_statistics, temp_filename)
with open(temp_filename) as result_file:
result_output_lines = result_file.readlines()
self.assertListEqual(result_output_lines, expected_output_lines)
os.remove(temp_filename)
if __name__ == '__main__':
unittest.main()
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