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//usr/lib/python2.4/test/test_profile.py
"""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()