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https://github.com/saymrwulf/cryptography.git
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343ac1344a
* clean mypy with tests dir * remove most no_type_check annotations * le sigh * remove unneeded comments
53 lines
1.3 KiB
Python
53 lines
1.3 KiB
Python
# This file is dual licensed under the terms of the Apache License, Version
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# 2.0, and the BSD License. See the LICENSE file in the root of this repository
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# for complete details.
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import typing
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import pytest
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from cryptography import utils
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class TestCachedProperty(object):
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def test_simple(self):
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class T(object):
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@utils.cached_property
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def t(self):
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accesses.append(None)
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return 14
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accesses: typing.List[typing.Optional[T]] = []
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assert T.t
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t = T()
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assert t.t == 14
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assert len(accesses) == 1
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assert t.t == 14
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assert len(accesses) == 1
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t = T()
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assert t.t == 14
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assert len(accesses) == 2
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assert t.t == 14
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assert len(accesses) == 2
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def test_set(self):
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class T(object):
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@utils.cached_property
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def t(self):
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accesses.append(None)
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return 14
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accesses: typing.List[typing.Optional[T]] = []
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t = T()
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with pytest.raises(AttributeError):
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t.t = None
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assert len(accesses) == 0
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assert t.t == 14
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assert len(accesses) == 1
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with pytest.raises(AttributeError):
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t.t = None
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assert len(accesses) == 1
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assert t.t == 14
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assert len(accesses) == 1
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