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from unittest.mock import patch
import pytest
from celery.utils import deprecated
class test_deprecated_property:
@patch('celery.utils.deprecated.warn')
def test_deprecated(self, warn):
class X:
_foo = None
@deprecated.Property(deprecation='1.2')
def foo(self):
return self._foo
@foo.setter
def foo(self, value):
self._foo = value
@foo.deleter
def foo(self):
self._foo = None
assert X.foo
assert X.foo.__set__(None, 1)
assert X.foo.__delete__(None)
x = X()
x.foo = 10
warn.assert_called_with(
stacklevel=3, deprecation='1.2', alternative=None,
description='foo', removal=None,
)
warn.reset_mock()
assert x.foo == 10
warn.assert_called_with(
stacklevel=3, deprecation='1.2', alternative=None,
description='foo', removal=None,
)
warn.reset_mock()
del (x.foo)
warn.assert_called_with(
stacklevel=3, deprecation='1.2', alternative=None,
description='foo', removal=None,
)
assert x._foo is None
def test_deprecated_no_setter_or_deleter(self):
class X:
@deprecated.Property(deprecation='1.2')
def foo(self):
pass
assert X.foo
x = X()
with pytest.raises(AttributeError):
x.foo = 10
with pytest.raises(AttributeError):
del (x.foo)
class test_warn:
@patch('warnings.warn')
def test_warn_deprecated(self, warn):
deprecated.warn('Foo')
warn.assert_called()
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