0001 """Test suite for the profile module.""" 0002 0003 import profile 0004 import os 0005 from test.test_support import TESTFN, vereq 0006 0007 # In order to have reproducible time, we simulate a timer in the global 0008 # variable 'ticks', which represents simulated time in milliseconds. 0009 # (We can't use a helper function increment the timer since it would be 0010 # included in the profile and would appear to consume all the time.) 0011 ticks = 0 0012 0013 def test_main(): 0014 global ticks 0015 ticks = 0 0016 prof = profile.Profile(timer) 0017 prof.runctx("testfunc()", globals(), globals()) 0018 prof.print_stats() 0019 0020 def timer(): 0021 return ticks*0.001 0022 0023 def testfunc(): 0024 # 1 call 0025 # 1000 ticks total: 400 ticks local, 600 ticks in subfunctions 0026 global ticks 0027 ticks += 199 0028 helper() # 300 0029 helper() # 300 0030 ticks += 201 0031 0032 def helper(): 0033 # 2 calls 0034 # 300 ticks total: 40 ticks local, 260 ticks in subfunctions 0035 global ticks 0036 ticks += 1 0037 helper1() # 30 0038 ticks += 3 0039 helper1() # 30 0040 ticks += 6 0041 helper2() # 50 0042 ticks += 5 0043 helper2() # 50 0044 ticks += 4 0045 helper2() # 50 0046 ticks += 7 0047 helper2() # 50 0048 ticks += 14 0049 0050 def helper1(): 0051 # 4 calls 0052 # 30 ticks total: 29 ticks local, 1 tick in subfunctions 0053 global ticks 0054 ticks += 10 0055 hasattr(C(), "foo") 0056 ticks += 19 0057 0058 def helper2(): 0059 # 8 calls 0060 # 50 ticks local: 39 ticks local, 11 ticks in subfunctions 0061 global ticks 0062 ticks += 11 0063 hasattr(C(), "bar") # 1 0064 ticks += 13 0065 subhelper() # 10 0066 ticks += 15 0067 0068 def subhelper(): 0069 # 8 calls 0070 # 10 ticks total: 8 ticks local, 2 ticks in subfunctions 0071 global ticks 0072 ticks += 2 0073 for i in range(2): 0074 try: 0075 C().foo # 1 x 2 0076 except AttributeError: 0077 ticks += 3 # 3 x 2 0078 0079 class C: 0080 def __getattr__(self, name): 0081 # 28 calls 0082 # 1 tick, local 0083 global ticks 0084 ticks += 1 0085 raise AttributeError 0086 0087 0088 def test_2(): 0089 d = globals().copy() 0090 def testfunc(): 0091 global x 0092 x = 1 0093 d['testfunc'] = testfunc 0094 profile.runctx("testfunc()", d, d, TESTFN) 0095 vereq (x, 1) 0096 os.unlink (TESTFN) 0097 0098 if __name__ == "__main__": 0099 test_main() 0100 test_2() 0101
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