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import _testcapi
import threading
from test.support import threading_helper
from unittest import TestCase
def run_in_threads(targets):
"""Run `targets` in separate threads"""
threads = [
threading.Thread(target=target)
for target in targets
]
for thread in threads:
thread.start()
for thread in threads:
thread.join()
@threading_helper.requires_working_threading()
class TestSlots(TestCase):
def test_object(self):
class Spam:
__slots__ = [
"eggs",
]
def __init__(self, initial_value):
self.eggs = initial_value
spam = Spam(0)
iters = 20_000
def writer():
for _ in range(iters):
spam.eggs += 1
def reader():
for _ in range(iters):
eggs = spam.eggs
assert type(eggs) is int
assert 0 <= eggs <= iters
run_in_threads([writer, reader, reader, reader])
def test_T_BOOL(self):
spam_old = _testcapi._test_structmembersType_OldAPI()
spam_new = _testcapi._test_structmembersType_NewAPI()
def writer():
for _ in range(1_000):
# different code paths for True and False
spam_old.T_BOOL = True
spam_new.T_BOOL = True
spam_old.T_BOOL = False
spam_new.T_BOOL = False
def reader():
for _ in range(1_000):
spam_old.T_BOOL
spam_new.T_BOOL
run_in_threads([writer, reader])
def test_T_BYTE(self):
spam_old = _testcapi._test_structmembersType_OldAPI()
spam_new = _testcapi._test_structmembersType_NewAPI()
def writer():
for _ in range(1_000):
spam_old.T_BYTE = 0
spam_new.T_BYTE = 0
def reader():
for _ in range(1_000):
spam_old.T_BYTE
spam_new.T_BYTE
run_in_threads([writer, reader])
def test_T_UBYTE(self):
spam_old = _testcapi._test_structmembersType_OldAPI()
spam_new = _testcapi._test_structmembersType_NewAPI()
def writer():
for _ in range(1_000):
spam_old.T_UBYTE = 0
spam_new.T_UBYTE = 0
def reader():
for _ in range(1_000):
spam_old.T_UBYTE
spam_new.T_UBYTE
run_in_threads([writer, reader])
def test_T_SHORT(self):
spam_old = _testcapi._test_structmembersType_OldAPI()
spam_new = _testcapi._test_structmembersType_NewAPI()
def writer():
for _ in range(1_000):
spam_old.T_SHORT = 0
spam_new.T_SHORT = 0
def reader():
for _ in range(1_000):
spam_old.T_SHORT
spam_new.T_SHORT
run_in_threads([writer, reader])
def test_T_USHORT(self):
spam_old = _testcapi._test_structmembersType_OldAPI()
spam_new = _testcapi._test_structmembersType_NewAPI()
def writer():
for _ in range(1_000):
spam_old.T_USHORT = 0
spam_new.T_USHORT = 0
def reader():
for _ in range(1_000):
spam_old.T_USHORT
spam_new.T_USHORT
run_in_threads([writer, reader])
def test_T_INT(self):
spam_old = _testcapi._test_structmembersType_OldAPI()
spam_new = _testcapi._test_structmembersType_NewAPI()
def writer():
for _ in range(1_000):
spam_old.T_INT = 0
spam_new.T_INT = 0
def reader():
for _ in range(1_000):
spam_old.T_INT
spam_new.T_INT
run_in_threads([writer, reader])
def test_T_UINT(self):
spam_old = _testcapi._test_structmembersType_OldAPI()
spam_new = _testcapi._test_structmembersType_NewAPI()
def writer():
for _ in range(1_000):
spam_old.T_UINT = 0
spam_new.T_UINT = 0
def reader():
for _ in range(1_000):
spam_old.T_UINT
spam_new.T_UINT
run_in_threads([writer, reader])
def test_T_LONG(self):
spam_old = _testcapi._test_structmembersType_OldAPI()
spam_new = _testcapi._test_structmembersType_NewAPI()
def writer():
for _ in range(1_000):
spam_old.T_LONG = 0
spam_new.T_LONG = 0
def reader():
for _ in range(1_000):
spam_old.T_LONG
spam_new.T_LONG
run_in_threads([writer, reader])
def test_T_ULONG(self):
spam_old = _testcapi._test_structmembersType_OldAPI()
spam_new = _testcapi._test_structmembersType_NewAPI()
def writer():
for _ in range(1_000):
spam_old.T_ULONG = 0
spam_new.T_ULONG = 0
def reader():
for _ in range(1_000):
spam_old.T_ULONG
spam_new.T_ULONG
run_in_threads([writer, reader])
def test_T_PYSSIZET(self):
spam_old = _testcapi._test_structmembersType_OldAPI()
spam_new = _testcapi._test_structmembersType_NewAPI()
def writer():
for _ in range(1_000):
spam_old.T_PYSSIZET = 0
spam_new.T_PYSSIZET = 0
def reader():
for _ in range(1_000):
spam_old.T_PYSSIZET
spam_new.T_PYSSIZET
run_in_threads([writer, reader])
def test_T_FLOAT(self):
spam_old = _testcapi._test_structmembersType_OldAPI()
spam_new = _testcapi._test_structmembersType_NewAPI()
def writer():
for _ in range(1_000):
spam_old.T_FLOAT = 0.0
spam_new.T_FLOAT = 0.0
def reader():
for _ in range(1_000):
spam_old.T_FLOAT
spam_new.T_FLOAT
run_in_threads([writer, reader])
def test_T_DOUBLE(self):
spam_old = _testcapi._test_structmembersType_OldAPI()
spam_new = _testcapi._test_structmembersType_NewAPI()
def writer():
for _ in range(1_000):
spam_old.T_DOUBLE = 0.0
spam_new.T_DOUBLE = 0.0
def reader():
for _ in range(1_000):
spam_old.T_DOUBLE
spam_new.T_DOUBLE
run_in_threads([writer, reader])
def test_T_LONGLONG(self):
spam_old = _testcapi._test_structmembersType_OldAPI()
spam_new = _testcapi._test_structmembersType_NewAPI()
def writer():
for _ in range(1_000):
spam_old.T_LONGLONG = 0
spam_new.T_LONGLONG = 0
def reader():
for _ in range(1_000):
spam_old.T_LONGLONG
spam_new.T_LONGLONG
run_in_threads([writer, reader])
def test_T_ULONGLONG(self):
spam_old = _testcapi._test_structmembersType_OldAPI()
spam_new = _testcapi._test_structmembersType_NewAPI()
def writer():
for _ in range(1_000):
spam_old.T_ULONGLONG = 0
spam_new.T_ULONGLONG = 0
def reader():
for _ in range(1_000):
spam_old.T_ULONGLONG
spam_new.T_ULONGLONG
run_in_threads([writer, reader])
def test_T_CHAR(self):
spam_old = _testcapi._test_structmembersType_OldAPI()
spam_new = _testcapi._test_structmembersType_NewAPI()
def writer():
for _ in range(1_000):
spam_old.T_CHAR = "c"
spam_new.T_CHAR = "c"
def reader():
for _ in range(1_000):
spam_old.T_CHAR
spam_new.T_CHAR
run_in_threads([writer, reader])
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