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100 lines
2.4 KiB
Python
100 lines
2.4 KiB
Python
"""Test suite for the profile module."""
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import profile
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import os
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from test.test_support import TESTFN, vereq
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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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def test_main():
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global ticks
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ticks = 0
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prof = profile.Profile(timer)
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prof.runctx("testfunc()", globals(), globals())
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prof.print_stats()
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def timer():
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return ticks*0.001
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def testfunc():
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# 1 call
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# 1000 ticks total: 400 ticks local, 600 ticks in subfunctions
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global ticks
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ticks += 199
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helper() # 300
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helper() # 300
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ticks += 201
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def helper():
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# 2 calls
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# 300 ticks total: 40 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 += 3
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helper1() # 30
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ticks += 6
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helper2() # 50
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ticks += 5
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helper2() # 50
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ticks += 4
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helper2() # 50
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ticks += 7
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helper2() # 50
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ticks += 14
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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")
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ticks += 19
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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):
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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_2():
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d = globals().copy()
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def testfunc():
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global x
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x = 1
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d['testfunc'] = testfunc
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profile.runctx("testfunc()", d, d, TESTFN)
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vereq (x, 1)
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os.unlink (TESTFN)
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if __name__ == "__main__":
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test_main()
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test_2()
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