mirror of
https://github.com/python/cpython.git
synced 2024-11-23 18:04:37 +08:00
207 lines
9.4 KiB
Python
207 lines
9.4 KiB
Python
"""Test suite for the cProfile module."""
|
|
|
|
import sys
|
|
import unittest
|
|
|
|
# rip off all interesting stuff from test_profile
|
|
import cProfile
|
|
from test.test_profile import ProfileTest, regenerate_expected_output
|
|
from test.support.script_helper import assert_python_failure
|
|
from test import support
|
|
|
|
|
|
class CProfileTest(ProfileTest):
|
|
profilerclass = cProfile.Profile
|
|
profilermodule = cProfile
|
|
expected_max_output = "{built-in method builtins.max}"
|
|
|
|
def get_expected_output(self):
|
|
return _ProfileOutput
|
|
|
|
def test_bad_counter_during_dealloc(self):
|
|
# bpo-3895
|
|
import _lsprof
|
|
|
|
with support.catch_unraisable_exception() as cm:
|
|
obj = _lsprof.Profiler(lambda: int)
|
|
obj.enable()
|
|
obj.disable()
|
|
obj.clear()
|
|
|
|
self.assertEqual(cm.unraisable.exc_type, TypeError)
|
|
|
|
def test_crash_with_not_enough_args(self):
|
|
# gh-126220
|
|
import _lsprof
|
|
|
|
for profile in [_lsprof.Profiler(), cProfile.Profile()]:
|
|
for method in [
|
|
"_pystart_callback",
|
|
"_pyreturn_callback",
|
|
"_ccall_callback",
|
|
"_creturn_callback",
|
|
]:
|
|
with self.subTest(profile=profile, method=method):
|
|
method_obj = getattr(profile, method)
|
|
with self.assertRaises(TypeError):
|
|
method_obj() # should not crash
|
|
|
|
def test_evil_external_timer(self):
|
|
# gh-120289
|
|
# Disabling profiler in external timer should not crash
|
|
import _lsprof
|
|
class EvilTimer():
|
|
def __init__(self, disable_count):
|
|
self.count = 0
|
|
self.disable_count = disable_count
|
|
|
|
def __call__(self):
|
|
self.count += 1
|
|
if self.count == self.disable_count:
|
|
profiler_with_evil_timer.disable()
|
|
return self.count
|
|
|
|
# this will trigger external timer to disable profiler at
|
|
# call event - in initContext in _lsprof.c
|
|
with support.catch_unraisable_exception() as cm:
|
|
profiler_with_evil_timer = _lsprof.Profiler(EvilTimer(1))
|
|
profiler_with_evil_timer.enable()
|
|
# Make a call to trigger timer
|
|
(lambda: None)()
|
|
profiler_with_evil_timer.disable()
|
|
profiler_with_evil_timer.clear()
|
|
self.assertEqual(cm.unraisable.exc_type, RuntimeError)
|
|
|
|
# this will trigger external timer to disable profiler at
|
|
# return event - in Stop in _lsprof.c
|
|
with support.catch_unraisable_exception() as cm:
|
|
profiler_with_evil_timer = _lsprof.Profiler(EvilTimer(2))
|
|
profiler_with_evil_timer.enable()
|
|
# Make a call to trigger timer
|
|
(lambda: None)()
|
|
profiler_with_evil_timer.disable()
|
|
profiler_with_evil_timer.clear()
|
|
self.assertEqual(cm.unraisable.exc_type, RuntimeError)
|
|
|
|
def test_profile_enable_disable(self):
|
|
prof = self.profilerclass()
|
|
# Make sure we clean ourselves up if the test fails for some reason.
|
|
self.addCleanup(prof.disable)
|
|
|
|
prof.enable()
|
|
self.assertEqual(
|
|
sys.monitoring.get_tool(sys.monitoring.PROFILER_ID), "cProfile")
|
|
|
|
prof.disable()
|
|
self.assertIs(sys.monitoring.get_tool(sys.monitoring.PROFILER_ID), None)
|
|
|
|
def test_profile_as_context_manager(self):
|
|
prof = self.profilerclass()
|
|
# Make sure we clean ourselves up if the test fails for some reason.
|
|
self.addCleanup(prof.disable)
|
|
|
|
with prof as __enter__return_value:
|
|
# profile.__enter__ should return itself.
|
|
self.assertIs(prof, __enter__return_value)
|
|
|
|
# profile should be set as the global profiler inside the
|
|
# with-block
|
|
self.assertEqual(
|
|
sys.monitoring.get_tool(sys.monitoring.PROFILER_ID), "cProfile")
|
|
|
|
# profile shouldn't be set once we leave the with-block.
|
|
self.assertIs(sys.monitoring.get_tool(sys.monitoring.PROFILER_ID), None)
|
|
|
|
def test_second_profiler(self):
|
|
pr = self.profilerclass()
|
|
pr2 = self.profilerclass()
|
|
pr.enable()
|
|
self.assertRaises(ValueError, pr2.enable)
|
|
pr.disable()
|
|
|
|
def test_throw(self):
|
|
"""
|
|
gh-106152
|
|
generator.throw() should trigger a call in cProfile
|
|
In the any() call below, there should be two entries for the generator:
|
|
* one for the call to __next__ which gets a True and terminates any
|
|
* one when the generator is garbage collected which will effectively
|
|
do a throw.
|
|
"""
|
|
pr = self.profilerclass()
|
|
pr.enable()
|
|
any(a == 1 for a in (1, 2))
|
|
pr.disable()
|
|
pr.create_stats()
|
|
|
|
for func, (cc, nc, _, _, _) in pr.stats.items():
|
|
if func[2] == "<genexpr>":
|
|
self.assertEqual(cc, 1)
|
|
self.assertEqual(nc, 1)
|
|
|
|
|
|
class TestCommandLine(unittest.TestCase):
|
|
def test_sort(self):
|
|
rc, out, err = assert_python_failure('-m', 'cProfile', '-s', 'demo')
|
|
self.assertGreater(rc, 0)
|
|
self.assertIn(b"option -s: invalid choice: 'demo'", err)
|
|
|
|
|
|
def main():
|
|
if '-r' not in sys.argv:
|
|
unittest.main()
|
|
else:
|
|
regenerate_expected_output(__file__, CProfileTest)
|
|
|
|
|
|
# Don't remove this comment. Everything below it is auto-generated.
|
|
#--cut--------------------------------------------------------------------------
|
|
_ProfileOutput = {}
|
|
_ProfileOutput['print_stats'] = """\
|
|
28 0.028 0.001 0.028 0.001 profilee.py:110(__getattr__)
|
|
1 0.270 0.270 1.000 1.000 profilee.py:25(testfunc)
|
|
23/3 0.150 0.007 0.170 0.057 profilee.py:35(factorial)
|
|
20 0.020 0.001 0.020 0.001 profilee.py:48(mul)
|
|
2 0.040 0.020 0.600 0.300 profilee.py:55(helper)
|
|
4 0.116 0.029 0.120 0.030 profilee.py:73(helper1)
|
|
2 0.000 0.000 0.140 0.070 profilee.py:84(helper2_indirect)
|
|
8 0.312 0.039 0.400 0.050 profilee.py:88(helper2)
|
|
8 0.064 0.008 0.080 0.010 profilee.py:98(subhelper)"""
|
|
_ProfileOutput['print_callers'] = """\
|
|
profilee.py:110(__getattr__) <- 16 0.016 0.016 profilee.py:98(subhelper)
|
|
profilee.py:25(testfunc) <- 1 0.270 1.000 <string>:1(<module>)
|
|
profilee.py:35(factorial) <- 1 0.014 0.130 profilee.py:25(testfunc)
|
|
20/3 0.130 0.147 profilee.py:35(factorial)
|
|
2 0.006 0.040 profilee.py:84(helper2_indirect)
|
|
profilee.py:48(mul) <- 20 0.020 0.020 profilee.py:35(factorial)
|
|
profilee.py:55(helper) <- 2 0.040 0.600 profilee.py:25(testfunc)
|
|
profilee.py:73(helper1) <- 4 0.116 0.120 profilee.py:55(helper)
|
|
profilee.py:84(helper2_indirect) <- 2 0.000 0.140 profilee.py:55(helper)
|
|
profilee.py:88(helper2) <- 6 0.234 0.300 profilee.py:55(helper)
|
|
2 0.078 0.100 profilee.py:84(helper2_indirect)
|
|
profilee.py:98(subhelper) <- 8 0.064 0.080 profilee.py:88(helper2)
|
|
{built-in method builtins.hasattr} <- 4 0.000 0.004 profilee.py:73(helper1)
|
|
8 0.000 0.008 profilee.py:88(helper2)
|
|
{built-in method sys.exception} <- 4 0.000 0.000 profilee.py:73(helper1)
|
|
{method 'append' of 'list' objects} <- 4 0.000 0.000 profilee.py:73(helper1)"""
|
|
_ProfileOutput['print_callees'] = """\
|
|
<string>:1(<module>) -> 1 0.270 1.000 profilee.py:25(testfunc)
|
|
profilee.py:110(__getattr__) ->
|
|
profilee.py:25(testfunc) -> 1 0.014 0.130 profilee.py:35(factorial)
|
|
2 0.040 0.600 profilee.py:55(helper)
|
|
profilee.py:35(factorial) -> 20/3 0.130 0.147 profilee.py:35(factorial)
|
|
20 0.020 0.020 profilee.py:48(mul)
|
|
profilee.py:48(mul) ->
|
|
profilee.py:55(helper) -> 4 0.116 0.120 profilee.py:73(helper1)
|
|
2 0.000 0.140 profilee.py:84(helper2_indirect)
|
|
6 0.234 0.300 profilee.py:88(helper2)
|
|
profilee.py:73(helper1) -> 4 0.000 0.004 {built-in method builtins.hasattr}
|
|
profilee.py:84(helper2_indirect) -> 2 0.006 0.040 profilee.py:35(factorial)
|
|
2 0.078 0.100 profilee.py:88(helper2)
|
|
profilee.py:88(helper2) -> 8 0.064 0.080 profilee.py:98(subhelper)
|
|
profilee.py:98(subhelper) -> 16 0.016 0.016 profilee.py:110(__getattr__)
|
|
{built-in method builtins.hasattr} -> 12 0.012 0.012 profilee.py:110(__getattr__)"""
|
|
|
|
if __name__ == "__main__":
|
|
main()
|