def test_not_shareable(self):
class Cheese:
def __init__(self, name):
self.name = name
def __str__(self):
return self.name
class SubBytes(bytes):
"""A subclass of a shareable type."""
not_shareables = [
# singletons
True,
False,
NotImplemented,
...,
# builtin types and objects
type,
object,
object(),
Exception(),
100.0,
# user-defined types and objects
Cheese,
Cheese('Wensleydale'),
SubBytes(b'spam'),
]
for obj in not_shareables:
with self.subTest(repr(obj)):
self.assertFalse(
interpreters.is_shareable(obj))
def test_default_shareables(self):
shareables = [
# singletons
None,
# builtin objects
b'spam',
'spam',
10,
-10,
]
for obj in shareables:
with self.subTest(obj):
self.assertTrue(interpreters.is_shareable(obj))