cpython/Lib/test/test_pstats.py
Ethan Furman dbac8f40e8
bpo-38659: [Enum] add _simple_enum decorator (GH-25285)
add:

_simple_enum decorator to transform a normal class into an enum
_test_simple_enum function to compare
_old_convert_ to enable checking _convert_ generated enums
_simple_enum takes a normal class and converts it into an enum:

@simple_enum(Enum)
class Color:
    RED = 1
    GREEN = 2
    BLUE = 3

_old_convert_ works much like _convert_ does, using the original logic:

# in a test file
import socket, enum
CheckedAddressFamily = enum._old_convert_(
        enum.IntEnum, 'AddressFamily', 'socket',
        lambda C: C.isupper() and C.startswith('AF_'),
        source=_socket,
        )

test_simple_enum takes a traditional enum and a simple enum and
compares the two:

# in the REPL or the same module as Color
class CheckedColor(Enum):
    RED = 1
    GREEN = 2
    BLUE = 3

_test_simple_enum(CheckedColor, Color)

_test_simple_enum(CheckedAddressFamily, socket.AddressFamily)

Any important differences will raise a TypeError
2021-04-19 18:04:53 -07:00

123 lines
4.3 KiB
Python

import unittest
from test import support
from io import StringIO
from pstats import SortKey
from enum import StrEnum, _test_simple_enum
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])
class CheckedSortKey(StrEnum):
CALLS = 'calls', 'ncalls'
CUMULATIVE = 'cumulative', 'cumtime'
FILENAME = 'filename', 'module'
LINE = 'line'
NAME = 'name'
NFL = 'nfl'
PCALLS = 'pcalls'
STDNAME = 'stdname'
TIME = 'time', 'tottime'
def __new__(cls, *values):
value = values[0]
obj = str.__new__(cls, value)
obj._value_ = value
for other_value in values[1:]:
cls._value2member_map_[other_value] = obj
obj._all_values = values
return obj
_test_simple_enum(CheckedSortKey, SortKey)
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()