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import unittest
from test import support
from io import StringIO
from pstats import SortKey
import pstats
import cProfile
class AddCallersTestCase(unittest.TestCase):
"""Tests for pstats.add_callers helper."""
def test_combine_results(self):
# pstats.add_callers should combine the call results of both target
# and source by adding the call time. See issue1269.
# new format: used by the cProfile module
target = {"a": (1, 2, 3, 4)}
source = {"a": (1, 2, 3, 4), "b": (5, 6, 7, 8)}
new_callers = pstats.add_callers(target, source)
self.assertEqual(new_callers, {'a': (2, 4, 6, 8), 'b': (5, 6, 7, 8)})
# old format: used by the profile module
target = {"a": 1}
source = {"a": 1, "b": 5}
new_callers = pstats.add_callers(target, source)
self.assertEqual(new_callers, {'a': 2, 'b': 5})
class StatsTestCase(unittest.TestCase):
def setUp(self):
stats_file = support.findfile('pstats.pck')
self.stats = pstats.Stats(stats_file)
def test_add(self):
stream = StringIO()
stats = pstats.Stats(stream=stream)
stats.add(self.stats, self.stats)
def test_sort_stats_int(self):
valid_args = {-1: 'stdname',
0: 'calls',
1: 'time',
2: 'cumulative'}
for arg_int, arg_str in valid_args.items():
self.stats.sort_stats(arg_int)
self.assertEqual(self.stats.sort_type,
self.stats.sort_arg_dict_default[arg_str][-1])
def test_sort_stats_string(self):
for sort_name in ['calls', 'ncalls', 'cumtime', 'cumulative',
'filename', 'line', 'module', 'name', 'nfl', 'pcalls',
'stdname', 'time', 'tottime']:
self.stats.sort_stats(sort_name)
self.assertEqual(self.stats.sort_type,
self.stats.sort_arg_dict_default[sort_name][-1])
def test_sort_stats_partial(self):
sortkey = 'filename'
for sort_name in ['f', 'fi', 'fil', 'file', 'filen', 'filena',
'filenam', 'filename']:
self.stats.sort_stats(sort_name)
self.assertEqual(self.stats.sort_type,
self.stats.sort_arg_dict_default[sortkey][-1])
def test_sort_stats_enum(self):
for member in SortKey:
self.stats.sort_stats(member)
self.assertEqual(
self.stats.sort_type,
self.stats.sort_arg_dict_default[member.value][-1])
def test_sort_starts_mix(self):
self.assertRaises(TypeError, self.stats.sort_stats,
'calls',
SortKey.TIME)
self.assertRaises(TypeError, self.stats.sort_stats,
SortKey.TIME,
'calls')
def test_get_stats_profile(self):
def pass1(): pass
def pass2(): pass
def pass3(): pass
pr = cProfile.Profile()
pr.enable()
pass1()
pass2()
pass3()
pr.create_stats()
ps = pstats.Stats(pr)
stats_profile = ps.get_stats_profile()
funcs_called = set(stats_profile.func_profiles.keys())
self.assertIn('pass1', funcs_called)
self.assertIn('pass2', funcs_called)
self.assertIn('pass3', funcs_called)
def test_SortKey_enum(self):
self.assertEqual(SortKey.FILENAME, 'filename')
self.assertNotEqual(SortKey.FILENAME, SortKey.CALLS)
if __name__ == "__main__":
unittest.main()
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