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- """Test suite for the profile module."""
-
- import profile
- import os
- from test.test_support import TESTFN, vereq
-
- # In order to have reproducible time, we simulate a timer in the global
- # variable 'ticks', which represents simulated time in milliseconds.
- # (We can't use a helper function increment the timer since it would be
- # included in the profile and would appear to consume all the time.)
- ticks = 0
-
- def test_1():
- global ticks
- ticks = 0
- prof = profile.Profile(timer)
- prof.runctx("testfunc()", globals(), globals())
- prof.print_stats()
-
- def timer():
- return ticks*0.001
-
- def testfunc():
- # 1 call
- # 1000 ticks total: 400 ticks local, 600 ticks in subfunctions
- global ticks
- ticks += 199
- helper() # 300
- helper() # 300
- ticks += 201
-
- def helper():
- # 2 calls
- # 300 ticks total: 40 ticks local, 260 ticks in subfunctions
- global ticks
- ticks += 1
- helper1() # 30
- ticks += 3
- helper1() # 30
- ticks += 6
- helper2() # 50
- ticks += 5
- helper2() # 50
- ticks += 4
- helper2() # 50
- ticks += 7
- helper2() # 50
- ticks += 14
-
- def helper1():
- # 4 calls
- # 30 ticks total: 29 ticks local, 1 tick in subfunctions
- global ticks
- ticks += 10
- hasattr(C(), "foo")
- ticks += 19
-
- def helper2():
- # 8 calls
- # 50 ticks local: 39 ticks local, 11 ticks in subfunctions
- global ticks
- ticks += 11
- hasattr(C(), "bar") # 1
- ticks += 13
- subhelper() # 10
- ticks += 15
-
- def subhelper():
- # 8 calls
- # 10 ticks total: 8 ticks local, 2 ticks in subfunctions
- global ticks
- ticks += 2
- for i in range(2):
- try:
- C().foo # 1 x 2
- except AttributeError:
- ticks += 3 # 3 x 2
-
- class C:
- def __getattr__(self, name):
- # 28 calls
- # 1 tick, local
- global ticks
- ticks += 1
- raise AttributeError
-
-
- def test_2():
- d = globals().copy()
- def testfunc():
- global x
- x = 1
- d['testfunc'] = testfunc
- profile.runctx("testfunc()", d, d, TESTFN)
- vereq (x, 1)
- os.unlink (TESTFN)
-
- def test_3():
- result = []
- def testfunc1():
- try: len(None)
- except: pass
- try: len(None)
- except: pass
- result.append(True)
- def testfunc2():
- testfunc1()
- testfunc1()
- profile.runctx("testfunc2()", locals(), locals(), TESTFN)
- vereq(result, [True, True])
- os.unlink(TESTFN)
-
- def test_main():
- test_1()
- test_2()
- test_3()
-
- if __name__ == "__main__":
- test_main()
-