1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
import abc
import pytest
import six
from cryptography.utils import (
InterfaceNotImplemented, register_interface_if, verify_interface
)
def test_register_interface_if_true():
@six.add_metaclass(abc.ABCMeta)
class SimpleInterface(object):
pass
@register_interface_if(1 == 1, SimpleInterface)
class SimpleClass(object):
pass
assert issubclass(SimpleClass, SimpleInterface) is True
def test_register_interface_if_false():
@six.add_metaclass(abc.ABCMeta)
class SimpleInterface(object):
pass
@register_interface_if(1 == 2, SimpleInterface)
class SimpleClass(object):
pass
assert issubclass(SimpleClass, SimpleInterface) is False
class TestVerifyInterface(object):
def test_verify_missing_method(self):
@six.add_metaclass(abc.ABCMeta)
class SimpleInterface(object):
@abc.abstractmethod
def method(self):
"""A simple method"""
class NonImplementer(object):
pass
with pytest.raises(InterfaceNotImplemented):
verify_interface(SimpleInterface, NonImplementer)
def test_different_arguments(self):
@six.add_metaclass(abc.ABCMeta)
class SimpleInterface(object):
@abc.abstractmethod
def method(self, a):
"""Method with one argument"""
class NonImplementer(object):
def method(self):
"""Method with no arguments"""
# Invoke this to ensure the line is covered
NonImplementer().method()
with pytest.raises(InterfaceNotImplemented):
verify_interface(SimpleInterface, NonImplementer)
def test_handles_abstract_property(self):
@six.add_metaclass(abc.ABCMeta)
class SimpleInterface(object):
@abc.abstractproperty
def property(self):
"""An abstract property"""
class NonImplementer(object):
@property
def property(self):
"""A concrete property"""
# Invoke this to ensure the line is covered
NonImplementer().property
verify_interface(SimpleInterface, NonImplementer)
|
