tools/cygprofile/patch_orderfile_unittest.py

   1 #!/usr/bin/python
   2 # Copyright 2015 The Chromium Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5
   6 import unittest
   7
   8 import patch_orderfile
   9 import symbol_extractor
  10
  11
  12 class TestPatchOrderFile(unittest.TestCase):
  13   def testRemoveClone(self):
  14     no_clone = "this.does.not.contain.clone"
  15     self.assertEquals(no_clone, patch_orderfile._RemoveClone(no_clone))
  16     with_clone = "this.does.contain.clone."
  17     self.assertEquals(
  18         "this.does.contain", patch_orderfile._RemoveClone(with_clone))
  19
  20   def testAliasClonedSymbols(self):
  21     symbol_infos = [
  22         symbol_extractor.SymbolInfo(name='aSymbol', offset=0x42, size=0x12,
  23                                     section='.text'),
  24         symbol_extractor.SymbolInfo(name='aSymbol.clone.', offset=8, size=1,
  25                                     section='.text')]
  26     (offset_to_symbol_infos, name_to_symbol_infos) = \
  27         patch_orderfile._GroupSymbolInfos(symbol_infos)
  28     self.assertEquals(len(offset_to_symbol_infos), 2)
  29     for i in range(2):
  30       s = symbol_infos[i]
  31       matching = offset_to_symbol_infos[s.offset][0]
  32       self.assertEquals(matching.offset, s.offset)
  33       self.assertEquals(matching.size, s.size)
  34     self.assertEquals(len(name_to_symbol_infos), 1)
  35     self.assertEquals(len(name_to_symbol_infos['aSymbol']), 2)
  36
  37   def testGroupSymbolsByOffset(self):
  38     symbol_infos = (
  39         symbol_extractor.SymbolInfo(name='aSymbol', offset=0x42, size=0x12,
  40                                     section='.text'),
  41         symbol_extractor.SymbolInfo(name='anotherSymbol', offset=0x42, size=1,
  42                                     section='.text'))
  43     (offset_to_symbol_infos, _) = \
  44         patch_orderfile._GroupSymbolInfos(symbol_infos)
  45     self.assertEquals(len(offset_to_symbol_infos), 1)
  46     self.assertEquals(tuple(offset_to_symbol_infos[0x42]), symbol_infos)
  47
  48   def testExpandSymbols(self):
  49     symbol_name = "dummySymbol"
  50     symbol_name2 = "other"
  51     profiled_symbol_names = [symbol_name, "symbolThatShouldntMatch"]
  52     name_to_symbol_infos = {symbol_name: [
  53         symbol_extractor.SymbolInfo(symbol_name, 0x42, 0x12,
  54                                     section='.text')]}
  55     offset_to_symbol_infos = {
  56         0x42: [symbol_extractor.SymbolInfo(symbol_name, 0x42, 0x12,
  57                                            section='.text'),
  58                symbol_extractor.SymbolInfo(symbol_name2, 0x42, 0x12,
  59                                            section='.text')]}
  60     symbol_names = patch_orderfile._ExpandSymbols(
  61         profiled_symbol_names, name_to_symbol_infos, offset_to_symbol_infos)
  62     self.assertEquals(len(symbol_names), 3)
  63     self.assertEquals(symbol_names[0], symbol_name)
  64     self.assertEquals(symbol_names[1], symbol_name2)
  65     self.assertEquals(symbol_names[2], "symbolThatShouldntMatch")
  66
  67   def testPrintSymbolWithPrefixes(self):
  68     class FakeOutputFile(object):
  69       def __init__(self):
  70         self.output = ''
  71       def write(self, s):
  72         self.output = self.output + s
  73     test_symbol = "dummySymbol"
  74     symbol_names = [test_symbol]
  75     fake_output = FakeOutputFile()
  76     patch_orderfile._PrintSymbolsWithPrefixes(symbol_names, fake_output)
  77     expected_output = """.text.startup.dummySymbol
  78 .text.hot.dummySymbol
  79 .text.unlikely.dummySymbol
  80 .text.dummySymbol
  81 """
  82     self.assertEquals(fake_output.output, expected_output)
  83
  84
  85 if __name__ == "__main__":
  86   unittest.main()