Lib/test/test_cprofile.py

   1 """Test suite for the cProfile module."""
   2
   3 import sys
   4 from test.test_support import run_unittest, TESTFN, unlink
   5
   6 # rip off all interesting stuff from test_profile
   7 import cProfile
   8 from test.test_profile import ProfileTest, regenerate_expected_output
   9
  10 class CProfileTest(ProfileTest):
  11     profilerclass = cProfile.Profile
  12
  13     # Issue 3895.
  14     def test_bad_counter_during_dealloc(self):
  15         import _lsprof
  16         # Must use a file as StringIO doesn't trigger the bug.
  17         sys.stderr = open(TESTFN, 'w')
  18         try:
  19             obj = _lsprof.Profiler(lambda: int)
  20             obj.enable()
  21             obj = _lsprof.Profiler(1)
  22             obj.disable()
  23         finally:
  24             sys.stderr = sys.__stderr__
  25             unlink(TESTFN)
  26
  27
  28 def test_main():
  29     run_unittest(CProfileTest)
  30
  31 def main():
  32     if '-r' not in sys.argv:
  33         test_main()
  34     else:
  35         regenerate_expected_output(__file__, CProfileTest)
  36
  37
  38 # Don't remove this comment. Everything below it is auto-generated.
  39 #--cut--------------------------------------------------------------------------
  40 CProfileTest.expected_output['print_stats'] = """\
  41          126 function calls (106 primitive calls) in 1.000 CPU seconds
  42
  43    Ordered by: standard name
  44
  45    ncalls  tottime  percall  cumtime  percall filename:lineno(function)
  46         1    0.000    0.000    1.000    1.000 <string>:1(<module>)
  47        28    0.028    0.001    0.028    0.001 profilee.py:110(__getattr__)
  48         1    0.270    0.270    1.000    1.000 profilee.py:25(testfunc)
  49      23/3    0.150    0.007    0.170    0.057 profilee.py:35(factorial)
  50        20    0.020    0.001    0.020    0.001 profilee.py:48(mul)
  51         2    0.040    0.020    0.600    0.300 profilee.py:55(helper)
  52         4    0.116    0.029    0.120    0.030 profilee.py:73(helper1)
  53         2    0.000    0.000    0.140    0.070 profilee.py:84(helper2_indirect)
  54         8    0.312    0.039    0.400    0.050 profilee.py:88(helper2)
  55         8    0.064    0.008    0.080    0.010 profilee.py:98(subhelper)
  56        12    0.000    0.000    0.012    0.001 {hasattr}
  57         4    0.000    0.000    0.000    0.000 {method 'append' of 'list' objects}
  58         1    0.000    0.000    0.000    0.000 {method 'disable' of '_lsprof.Profiler' objects}
  59         8    0.000    0.000    0.000    0.000 {range}
  60         4    0.000    0.000    0.000    0.000 {sys.exc_info}
  61
  62
  63 """
  64 CProfileTest.expected_output['print_callers'] = """\
  65    Ordered by: standard name
  66
  67 Function                                          was called by...
  68                                                       ncalls  tottime  cumtime
  69 <string>:1(<module>)                              <-
  70 profilee.py:110(__getattr__)                      <-      16    0.016    0.016  profilee.py:98(subhelper)
  71                                                           12    0.012    0.012  {hasattr}
  72 profilee.py:25(testfunc)                          <-       1    0.270    1.000  <string>:1(<module>)
  73 profilee.py:35(factorial)                         <-       1    0.014    0.130  profilee.py:25(testfunc)
  74                                                         20/3    0.130    0.147  profilee.py:35(factorial)
  75                                                            2    0.006    0.040  profilee.py:84(helper2_indirect)
  76 profilee.py:48(mul)                               <-      20    0.020    0.020  profilee.py:35(factorial)
  77 profilee.py:55(helper)                            <-       2    0.040    0.600  profilee.py:25(testfunc)
  78 profilee.py:73(helper1)                           <-       4    0.116    0.120  profilee.py:55(helper)
  79 profilee.py:84(helper2_indirect)                  <-       2    0.000    0.140  profilee.py:55(helper)
  80 profilee.py:88(helper2)                           <-       6    0.234    0.300  profilee.py:55(helper)
  81                                                            2    0.078    0.100  profilee.py:84(helper2_indirect)
  82 profilee.py:98(subhelper)                         <-       8    0.064    0.080  profilee.py:88(helper2)
  83 {hasattr}                                         <-       4    0.000    0.004  profilee.py:73(helper1)
  84                                                            8    0.000    0.008  profilee.py:88(helper2)
  85 {method 'append' of 'list' objects}               <-       4    0.000    0.000  profilee.py:73(helper1)
  86 {method 'disable' of '_lsprof.Profiler' objects}  <-
  87 {range}                                           <-       8    0.000    0.000  profilee.py:98(subhelper)
  88 {sys.exc_info}                                    <-       4    0.000    0.000  profilee.py:73(helper1)
  89
  90
  91 """
  92 CProfileTest.expected_output['print_callees'] = """\
  93    Ordered by: standard name
  94
  95 Function                                          called...
  96                                                       ncalls  tottime  cumtime
  97 <string>:1(<module>)                              ->       1    0.270    1.000  profilee.py:25(testfunc)
  98 profilee.py:110(__getattr__)                      ->
  99 profilee.py:25(testfunc)                          ->       1    0.014    0.130  profilee.py:35(factorial)
 100                                                            2    0.040    0.600  profilee.py:55(helper)
 101 profilee.py:35(factorial)                         ->    20/3    0.130    0.147  profilee.py:35(factorial)
 102                                                           20    0.020    0.020  profilee.py:48(mul)
 103 profilee.py:48(mul)                               ->
 104 profilee.py:55(helper)                            ->       4    0.116    0.120  profilee.py:73(helper1)
 105                                                            2    0.000    0.140  profilee.py:84(helper2_indirect)
 106                                                            6    0.234    0.300  profilee.py:88(helper2)
 107 profilee.py:73(helper1)                           ->       4    0.000    0.004  {hasattr}
 108                                                            4    0.000    0.000  {method 'append' of 'list' objects}
 109                                                            4    0.000    0.000  {sys.exc_info}
 110 profilee.py:84(helper2_indirect)                  ->       2    0.006    0.040  profilee.py:35(factorial)
 111                                                            2    0.078    0.100  profilee.py:88(helper2)
 112 profilee.py:88(helper2)                           ->       8    0.064    0.080  profilee.py:98(subhelper)
 113                                                            8    0.000    0.008  {hasattr}
 114 profilee.py:98(subhelper)                         ->      16    0.016    0.016  profilee.py:110(__getattr__)
 115                                                            8    0.000    0.000  {range}
 116 {hasattr}                                         ->      12    0.012    0.012  profilee.py:110(__getattr__)
 117 {method 'append' of 'list' objects}               ->
 118 {method 'disable' of '_lsprof.Profiler' objects}  ->
 119 {range}                                           ->
 120 {sys.exc_info}                                    ->
 121
 122
 123 """
 124
 125 if __name__ == "__main__":
 126     main()