AppPkg/Applications/Python/Python-2.7.2/Lib/test/test_profile.py

   1 """Test suite for the profile module."""
   2
   3 import sys
   4 import pstats
   5 import unittest
   6 from StringIO import StringIO
   7 from test.test_support import run_unittest
   8
   9 import profile
  10 from test.profilee import testfunc, timer
  11
  12
  13 class ProfileTest(unittest.TestCase):
  14
  15     profilerclass = profile.Profile
  16     methodnames = ['print_stats', 'print_callers', 'print_callees']
  17     expected_output = {}
  18     expected_list_sort_output = ':0(sort)'
  19
  20     @classmethod
  21     def do_profiling(cls):
  22         results = []
  23         prof = cls.profilerclass(timer, 0.001)
  24         start_timer = timer()
  25         prof.runctx("testfunc()", globals(), locals())
  26         results.append(timer() - start_timer)
  27         for methodname in cls.methodnames:
  28             s = StringIO()
  29             stats = pstats.Stats(prof, stream=s)
  30             stats.strip_dirs().sort_stats("stdname")
  31             getattr(stats, methodname)()
  32             results.append(s.getvalue())
  33         return results
  34
  35     def test_cprofile(self):
  36         results = self.do_profiling()
  37         self.assertEqual(results[0], 1000)
  38         for i, method in enumerate(self.methodnames):
  39             self.assertEqual(results[i+1], self.expected_output[method],
  40                              "Stats.%s output for %s doesn't fit expectation!" %
  41                              (method, self.profilerclass.__name__))
  42
  43     def test_calling_conventions(self):
  44         # Issue #5330: profile and cProfile wouldn't report C functions called
  45         # with keyword arguments. We test all calling conventions.
  46         stmts = [
  47             "[].sort()",
  48             "[].sort(reverse=True)",
  49             "[].sort(*(None, None, True))",
  50             "[].sort(**dict(reverse=True))",
  51         ]
  52         for stmt in stmts:
  53             s = StringIO()
  54             prof = self.profilerclass(timer, 0.001)
  55             prof.runctx(stmt, globals(), locals())
  56             stats = pstats.Stats(prof, stream=s)
  57             stats.print_stats()
  58             res = s.getvalue()
  59             self.assertIn(self.expected_list_sort_output, res,
  60                 "Profiling {0!r} didn't report list.sort:\n{1}".format(stmt, res))
  61
  62
  63 def regenerate_expected_output(filename, cls):
  64     filename = filename.rstrip('co')
  65     print 'Regenerating %s...' % filename
  66     results = cls.do_profiling()
  67
  68     newfile = []
  69     with open(filename, 'r') as f:
  70         for line in f:
  71             newfile.append(line)
  72             if line[:6] == '#--cut':
  73                 break
  74
  75     with open(filename, 'w') as f:
  76         f.writelines(newfile)
  77         for i, method in enumerate(cls.methodnames):
  78             f.write('%s.expected_output[%r] = """\\\n%s"""\n' % (
  79                 cls.__name__, method, results[i+1]))
  80         f.write('\nif __name__ == "__main__":\n    main()\n')
  81
  82
  83 def test_main():
  84     run_unittest(ProfileTest)
  85
  86 def main():
  87     if '-r' not in sys.argv:
  88         test_main()
  89     else:
  90         regenerate_expected_output(__file__, ProfileTest)
  91
  92
  93 # Don't remove this comment. Everything below it is auto-generated.
  94 #--cut--------------------------------------------------------------------------
  95 ProfileTest.expected_output['print_stats'] = """\
  96          127 function calls (107 primitive calls) in 999.749 seconds
  97
  98    Ordered by: standard name
  99
 100    ncalls  tottime  percall  cumtime  percall filename:lineno(function)
 101         4   -0.004   -0.001   -0.004   -0.001 :0(append)
 102         4   -0.004   -0.001   -0.004   -0.001 :0(exc_info)
 103        12   -0.024   -0.002   11.964    0.997 :0(hasattr)
 104         8   -0.008   -0.001   -0.008   -0.001 :0(range)
 105         1    0.000    0.000    0.000    0.000 :0(setprofile)
 106         1   -0.002   -0.002  999.751  999.751 <string>:1(<module>)
 107         0    0.000             0.000          profile:0(profiler)
 108         1   -0.002   -0.002  999.749  999.749 profile:0(testfunc())
 109        28   27.972    0.999   27.972    0.999 profilee.py:110(__getattr__)
 110         1  269.996  269.996  999.753  999.753 profilee.py:25(testfunc)
 111      23/3  149.937    6.519  169.917   56.639 profilee.py:35(factorial)
 112        20   19.980    0.999   19.980    0.999 profilee.py:48(mul)
 113         2   39.986   19.993  599.814  299.907 profilee.py:55(helper)
 114         4  115.984   28.996  119.964   29.991 profilee.py:73(helper1)
 115         2   -0.006   -0.003  139.942   69.971 profilee.py:84(helper2_indirect)
 116         8  311.976   38.997  399.896   49.987 profilee.py:88(helper2)
 117         8   63.968    7.996   79.944    9.993 profilee.py:98(subhelper)
 118
 119
 120 """
 121 ProfileTest.expected_output['print_callers'] = """\
 122    Ordered by: standard name
 123
 124 Function                          was called by...
 125 :0(append)                        <- profilee.py:73(helper1)(4)  119.964
 126 :0(exc_info)                      <- profilee.py:73(helper1)(4)  119.964
 127 :0(hasattr)                       <- profilee.py:73(helper1)(4)  119.964
 128                                      profilee.py:88(helper2)(8)  399.896
 129 :0(range)                         <- profilee.py:98(subhelper)(8)   79.944
 130 :0(setprofile)                    <- profile:0(testfunc())(1)  999.749
 131 <string>:1(<module>)              <- profile:0(testfunc())(1)  999.749
 132 profile:0(profiler)               <-
 133 profile:0(testfunc())             <- profile:0(profiler)(1)    0.000
 134 profilee.py:110(__getattr__)      <- :0(hasattr)(12)   11.964
 135                                      profilee.py:98(subhelper)(16)   79.944
 136 profilee.py:25(testfunc)          <- <string>:1(<module>)(1)  999.751
 137 profilee.py:35(factorial)         <- profilee.py:25(testfunc)(1)  999.753
 138                                      profilee.py:35(factorial)(20)  169.917
 139                                      profilee.py:84(helper2_indirect)(2)  139.942
 140 profilee.py:48(mul)               <- profilee.py:35(factorial)(20)  169.917
 141 profilee.py:55(helper)            <- profilee.py:25(testfunc)(2)  999.753
 142 profilee.py:73(helper1)           <- profilee.py:55(helper)(4)  599.814
 143 profilee.py:84(helper2_indirect)  <- profilee.py:55(helper)(2)  599.814
 144 profilee.py:88(helper2)           <- profilee.py:55(helper)(6)  599.814
 145                                      profilee.py:84(helper2_indirect)(2)  139.942
 146 profilee.py:98(subhelper)         <- profilee.py:88(helper2)(8)  399.896
 147
 148
 149 """
 150 ProfileTest.expected_output['print_callees'] = """\
 151    Ordered by: standard name
 152
 153 Function                          called...
 154 :0(append)                        ->
 155 :0(exc_info)                      ->
 156 :0(hasattr)                       -> profilee.py:110(__getattr__)(12)   27.972
 157 :0(range)                         ->
 158 :0(setprofile)                    ->
 159 <string>:1(<module>)              -> profilee.py:25(testfunc)(1)  999.753
 160 profile:0(profiler)               -> profile:0(testfunc())(1)  999.749
 161 profile:0(testfunc())             -> :0(setprofile)(1)    0.000
 162                                      <string>:1(<module>)(1)  999.751
 163 profilee.py:110(__getattr__)      ->
 164 profilee.py:25(testfunc)          -> profilee.py:35(factorial)(1)  169.917
 165                                      profilee.py:55(helper)(2)  599.814
 166 profilee.py:35(factorial)         -> profilee.py:35(factorial)(20)  169.917
 167                                      profilee.py:48(mul)(20)   19.980
 168 profilee.py:48(mul)               ->
 169 profilee.py:55(helper)            -> profilee.py:73(helper1)(4)  119.964
 170                                      profilee.py:84(helper2_indirect)(2)  139.942
 171                                      profilee.py:88(helper2)(6)  399.896
 172 profilee.py:73(helper1)           -> :0(append)(4)   -0.004
 173                                      :0(exc_info)(4)   -0.004
 174                                      :0(hasattr)(4)   11.964
 175 profilee.py:84(helper2_indirect)  -> profilee.py:35(factorial)(2)  169.917
 176                                      profilee.py:88(helper2)(2)  399.896
 177 profilee.py:88(helper2)           -> :0(hasattr)(8)   11.964
 178                                      profilee.py:98(subhelper)(8)   79.944
 179 profilee.py:98(subhelper)         -> :0(range)(8)   -0.008
 180                                      profilee.py:110(__getattr__)(16)   27.972
 181
 182
 183 """
 184
 185 if __name__ == "__main__":
 186     main()