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unbreak test_cprofile
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Benjamin Peterson
parent
d8506df229
commit
4e299c709b
3 changed files with 72 additions and 130 deletions
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@ -1137,7 +1137,6 @@ class _ExpectedSkips:
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# These are broken tests, for now skipped on every platform.
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# XXX Fix these!
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self.expected.add('test_cProfile')
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self.expected.add('test_nis')
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# expected to be skipped on every platform, even Linux
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@ -1,129 +0,0 @@
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"""Test suite for the cProfile module."""
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import cProfile, pstats, sys
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# In order to have reproducible time, we simulate a timer in the global
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# variable 'ticks', which represents simulated time in milliseconds.
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# (We can't use a helper function increment the timer since it would be
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# included in the profile and would appear to consume all the time.)
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ticks = 0
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# IMPORTANT: this is an output test. *ALL* NUMBERS in the expected
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# output are relevant. If you change the formatting of pstats,
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# please don't just regenerate output/test_cProfile without checking
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# very carefully that not a single number has changed.
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def test_main():
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global ticks
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ticks = 42000
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prof = cProfile.Profile(timer, 0.001)
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prof.runctx("testfunc()", globals(), locals())
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assert ticks == 43000, ticks
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st = pstats.Stats(prof)
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st.strip_dirs().sort_stats('stdname').print_stats()
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st.print_callees()
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st.print_callers()
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def timer():
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return ticks
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def testfunc():
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# 1 call
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# 1000 ticks total: 270 ticks local, 730 ticks in subfunctions
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global ticks
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ticks += 99
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helper() # 300
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helper() # 300
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ticks += 171
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factorial(14) # 130
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def factorial(n):
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# 23 calls total
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# 170 ticks total, 150 ticks local
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# 3 primitive calls, 130, 20 and 20 ticks total
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# including 116, 17, 17 ticks local
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global ticks
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if n > 0:
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ticks += n
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return mul(n, factorial(n-1))
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else:
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ticks += 11
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return 1
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def mul(a, b):
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# 20 calls
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# 1 tick, local
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global ticks
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ticks += 1
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return a * b
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def helper():
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# 2 calls
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# 300 ticks total: 20 ticks local, 260 ticks in subfunctions
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global ticks
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ticks += 1
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helper1() # 30
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ticks += 2
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helper1() # 30
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ticks += 6
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helper2() # 50
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ticks += 3
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helper2() # 50
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ticks += 2
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helper2() # 50
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ticks += 5
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helper2_indirect() # 70
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ticks += 1
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def helper1():
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# 4 calls
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# 30 ticks total: 29 ticks local, 1 tick in subfunctions
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global ticks
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ticks += 10
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hasattr(C(), "foo") # 1
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ticks += 19
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lst = []
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lst.append(42) # 0
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sys.exc_info() # 0
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def helper2_indirect():
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helper2() # 50
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factorial(3) # 20
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def helper2():
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# 8 calls
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# 50 ticks local: 39 ticks local, 11 ticks in subfunctions
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global ticks
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ticks += 11
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hasattr(C(), "bar") # 1
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ticks += 13
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subhelper() # 10
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ticks += 15
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def subhelper():
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# 8 calls
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# 10 ticks total: 8 ticks local, 2 ticks in subfunctions
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global ticks
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ticks += 2
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for i in range(2): # 0
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try:
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C().foo # 1 x 2
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except AttributeError:
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ticks += 3 # 3 x 2
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class C:
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def __getattr__(self, name):
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# 28 calls
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# 1 tick, local
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global ticks
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ticks += 1
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raise AttributeError
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def test_main():
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from test.support import TestSkipped
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raise TestSkipped('test_cProfile test is current broken')
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if __name__ == "__main__":
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test_main()
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72
Lib/test/test_cprofile.py
Normal file
72
Lib/test/test_cprofile.py
Normal file
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@ -0,0 +1,72 @@
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"""Test suite for the cProfile module."""
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import sys
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from test.support import run_unittest
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# rip off all interesting stuff from test_profile
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import cProfile
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from test.test_profile import ProfileTest, regenerate_expected_output
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class CProfileTest(ProfileTest):
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profilerclass = cProfile.Profile
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def test_main():
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run_unittest(CProfileTest)
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def main():
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if '-r' not in sys.argv:
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test_main()
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else:
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regenerate_expected_output(__file__, CProfileTest)
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# Don't remove this comment. Everything below it is auto-generated.
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#--cut--------------------------------------------------------------------------
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CProfileTest.expected_output['print_stats'] = """\
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28 0.028 0.001 0.028 0.001 profilee.py:110(__getattr__)
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1 0.270 0.270 1.000 1.000 profilee.py:25(testfunc)
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23/3 0.150 0.007 0.170 0.057 profilee.py:35(factorial)
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20 0.020 0.001 0.020 0.001 profilee.py:48(mul)
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2 0.040 0.020 0.600 0.300 profilee.py:55(helper)
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4 0.116 0.029 0.120 0.030 profilee.py:73(helper1)
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2 0.000 0.000 0.140 0.070 profilee.py:84(helper2_indirect)
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8 0.312 0.039 0.400 0.050 profilee.py:88(helper2)
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8 0.064 0.008 0.080 0.010 profilee.py:98(subhelper)"""
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CProfileTest.expected_output['print_callers'] = """\
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profilee.py:110(__getattr__) <- 16 0.016 0.016 profilee.py:98(subhelper)
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profilee.py:25(testfunc) <- 1 0.270 1.000 <string>:1(<module>)
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profilee.py:35(factorial) <- 1 0.014 0.130 profilee.py:25(testfunc)
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20/3 0.130 0.147 profilee.py:35(factorial)
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2 0.006 0.040 profilee.py:84(helper2_indirect)
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profilee.py:48(mul) <- 20 0.020 0.020 profilee.py:35(factorial)
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profilee.py:55(helper) <- 2 0.040 0.600 profilee.py:25(testfunc)
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profilee.py:73(helper1) <- 4 0.116 0.120 profilee.py:55(helper)
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profilee.py:84(helper2_indirect) <- 2 0.000 0.140 profilee.py:55(helper)
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profilee.py:88(helper2) <- 6 0.234 0.300 profilee.py:55(helper)
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2 0.078 0.100 profilee.py:84(helper2_indirect)
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profilee.py:98(subhelper) <- 8 0.064 0.080 profilee.py:88(helper2)
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{built-in method exc_info} <- 4 0.000 0.000 profilee.py:73(helper1)
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{built-in method hasattr} <- 4 0.000 0.004 profilee.py:73(helper1)
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8 0.000 0.008 profilee.py:88(helper2)
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{method 'append' of 'list' objects} <- 4 0.000 0.000 profilee.py:73(helper1)"""
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CProfileTest.expected_output['print_callees'] = """\
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<string>:1(<module>) -> 1 0.270 1.000 profilee.py:25(testfunc)
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profilee.py:110(__getattr__) ->
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profilee.py:25(testfunc) -> 1 0.014 0.130 profilee.py:35(factorial)
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2 0.040 0.600 profilee.py:55(helper)
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profilee.py:35(factorial) -> 20/3 0.130 0.147 profilee.py:35(factorial)
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20 0.020 0.020 profilee.py:48(mul)
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profilee.py:48(mul) ->
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profilee.py:55(helper) -> 4 0.116 0.120 profilee.py:73(helper1)
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2 0.000 0.140 profilee.py:84(helper2_indirect)
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6 0.234 0.300 profilee.py:88(helper2)
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profilee.py:73(helper1) -> 4 0.000 0.000 {built-in method exc_info}
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profilee.py:84(helper2_indirect) -> 2 0.006 0.040 profilee.py:35(factorial)
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2 0.078 0.100 profilee.py:88(helper2)
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profilee.py:88(helper2) -> 8 0.064 0.080 profilee.py:98(subhelper)
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profilee.py:98(subhelper) -> 16 0.016 0.016 profilee.py:110(__getattr__)
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{built-in method hasattr} -> 12 0.012 0.012 profilee.py:110(__getattr__)"""
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if __name__ == "__main__":
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main()
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