utils_unittest.py revision c7faa09f456ca5c651ac373ad897aa4be6ad2717 
1#!/usr/bin/python2
2
3# Copyright 2016 The Chromium OS Authors. All rights reserved.
4# Use of this source code is governed by a BSD-style license that can be
5# found in the LICENSE file.
6"""Unit tests for the utility module."""
7
8import collections
9import csv
10import unittest
11
12import utils
13
14
15class UtilsTest(unittest.TestCase):
16  """Test class for utility module."""
17
18  def __init__(self, *args, **kwargs):
19    super(UtilsTest, self).__init__(*args, **kwargs)
20    self._pprof_top_csv_file = 'testdata/input/pprof_top_csv/file1.csv'
21    self._pprof_top_file = 'testdata/input/pprof_top/file1.pprof'
22    self._pprof_tree_csv_file = 'testdata/input/pprof_tree_csv/file1.csv'
23    self._pprof_tree_file = 'testdata/input/pprof_tree/file1.pprof'
24    self._pairwise_inclusive_count_test_file = \
25        'testdata/input/pairwise_inclusive_count_test.csv'
26    self._pairwise_inclusive_count_reference_file = \
27        'testdata/input/pairwise_inclusive_count_reference.csv'
28    self._inclusive_count_test_file = \
29       'testdata/input/inclusive_count_test.csv'
30    self._inclusive_count_reference_file = \
31        'testdata/input/inclusive_count_reference.csv'
32
33  def testParseFunctionGroups(self):
34    cwp_function_groups_lines = \
35        ['group1 /a\n', 'group2 /b\n', 'group3 /c\n', 'group4 /d\n']
36    expected_output = [('group1', '/a'), ('group2', '/b'), ('group3', '/c'),
37                       ('group4', '/d')]
38    result = utils.ParseFunctionGroups(cwp_function_groups_lines)
39
40    self.assertListEqual(expected_output, result)
41
42  def testParsePProfTopOutput(self):
43    result_pprof_top_output = utils.ParsePprofTopOutput(self._pprof_top_file)
44    expected_pprof_top_output = {}
45
46    with open(self._pprof_top_csv_file) as input_file:
47      statistics_reader = csv.DictReader(input_file, delimiter=',')
48
49      for statistic in statistics_reader:
50        if statistic['file']:
51          function_key = ','.join([statistic['function'], statistic['file']])
52        else:
53          function_key = statistic['function']
54        expected_pprof_top_output[function_key] = \
55            (statistic['flat'], statistic['flat_p'], statistic['sum_p'],
56             statistic['cum'], statistic['cum_p'])
57
58    self.assertDictEqual(result_pprof_top_output, expected_pprof_top_output)
59
60  def testParsePProfTreeOutput(self):
61    result_pprof_tree_output = utils.ParsePprofTreeOutput(self._pprof_tree_file)
62    expected_pprof_tree_output = collections.defaultdict(dict)
63
64    with open(self._pprof_tree_csv_file) as input_file:
65      statistics_reader = csv.DictReader(input_file, delimiter=',')
66
67      for statistic in statistics_reader:
68        parent_function_key = \
69            ','.join([statistic['parent_function'],
70                      statistic['parent_function_file']])
71        child_function_key = \
72            ','.join([statistic['child_function'],
73                      statistic['child_function_file']])
74
75        expected_pprof_tree_output[parent_function_key][child_function_key] = \
76            float(statistic['inclusive_count_fraction'])
77
78    self.assertDictEqual(result_pprof_tree_output, expected_pprof_tree_output)
79
80  def testParseCWPInclusiveCountFile(self):
81    expected_inclusive_statistics_test = \
82        {'func_i,/c/d/file_i': ('i', 5, 4.4, utils.EXTRA_FUNCTION),
83         'func_j,/e/file_j': ('j', 6, 5.5, utils.EXTRA_FUNCTION),
84         'func_f,/a/b/file_f': ('f', 4, 2.3, utils.EXTRA_FUNCTION),
85         'func_h,/c/d/file_h': ('h', 1, 3.3, utils.EXTRA_FUNCTION),
86         'func_k,/e/file_k': ('k', 7, 6.6, utils.EXTRA_FUNCTION),
87         'func_g,/a/b/file_g': ('g', 2, 2.2, utils.EXTRA_FUNCTION)}
88    expected_inclusive_statistics_reference = \
89        {'func_i,/c/d/file_i': ('i', 5, 4.0, utils.EXTRA_FUNCTION),
90         'func_j,/e/file_j': ('j', 6, 5.0, utils.EXTRA_FUNCTION),
91         'func_f,/a/b/file_f': ('f', 1, 1.0, utils.EXTRA_FUNCTION),
92         'func_l,/e/file_l': ('l', 7, 6.0, utils.EXTRA_FUNCTION),
93         'func_h,/c/d/file_h': ('h', 4, 3.0, utils.EXTRA_FUNCTION),
94         'func_g,/a/b/file_g': ('g', 5, 4.4, utils.EXTRA_FUNCTION)}
95    result_inclusive_statistics_test = \
96        utils.ParseCWPInclusiveCountFile(self._inclusive_count_test_file)
97    result_inclusive_statistics_reference = \
98        utils.ParseCWPInclusiveCountFile(self._inclusive_count_reference_file)
99
100    self.assertDictEqual(result_inclusive_statistics_test,
101                         expected_inclusive_statistics_test)
102    self.assertDictEqual(result_inclusive_statistics_reference,
103                         expected_inclusive_statistics_reference)
104
105  def testParseCWPPairwiseInclusiveCountFile(self):
106    expected_pairwise_inclusive_statistics_test = {
107        'func_f': {'func_g,/a/b/file_g2': 0.01,
108                   'func_h,/c/d/file_h': 0.02,
109                   'func_i,/c/d/file_i': 0.03},
110        'func_g': {'func_j,/e/file_j': 0.4,
111                   'func_m,/e/file_m': 0.6}
112    }
113    expected_pairwise_inclusive_statistics_reference = {
114        'func_f': {'func_g,/a/b/file_g': 0.1,
115                   'func_h,/c/d/file_h': 0.2,
116                   'func_i,/c/d/file_i': 0.3},
117        'func_g': {'func_j,/e/file_j': 0.4}
118    }
119    result_pairwise_inclusive_statistics_test = \
120        utils.ParseCWPPairwiseInclusiveCountFile(
121            self._pairwise_inclusive_count_test_file)
122    result_pairwise_inclusive_statistics_reference = \
123        utils.ParseCWPPairwiseInclusiveCountFile(
124            self._pairwise_inclusive_count_reference_file)
125
126    self.assertDictEqual(result_pairwise_inclusive_statistics_test,
127                         expected_pairwise_inclusive_statistics_test)
128    self.assertDictEqual(result_pairwise_inclusive_statistics_reference,
129                         expected_pairwise_inclusive_statistics_reference)
130
131
132if __name__ == '__main__':
133  unittest.main()
134