blob: cba21edd621c68da184fb0827ae8142f82f69dc7 (
plain)
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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
# Copyright David Abrahams 2004. Distributed under the Boost
# Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
'''
>>> from virtual_functions_ext import *
>>> class C1(concrete):
... def f(self, y):
... return concrete.f(self, Y(-y.value()))
>>> class C2(concrete):
... pass
>>> class A1(abstract):
... def f(self, y):
... return y.value() * 2
... def g(self, y):
... return self
>>> class A2(abstract):
... pass
>>> y1 = Y(16)
>>> y2 = Y(17)
#
# Test abstract with f,g overridden
#
>>> a1 = A1(42)
>>> a1.value()
42
# Call f,g indirectly from C++
>>> a1.call_f(y1)
32
>>> assert type(a1.call_g(y1)) is abstract
# Call f directly from Python
>>> a1.f(y2)
34
#
# Test abstract with f not overridden
#
>>> a2 = A2(42)
>>> a2.value()
42
# Call f indirectly from C++
>>> try: a2.call_f(y1)
... except AttributeError: pass
... else: print('no exception')
# Call f directly from Python
>>> try: a2.call_f(y2)
... except AttributeError: pass
... else: print('no exception')
############# Concrete Tests ############
#
# Test concrete with f overridden
#
>>> c1 = C1(42)
>>> c1.value()
42
# Call f indirectly from C++
>>> c1.call_f(y1)
-16
# Call f directly from Python
>>> c1.f(y2)
-17
#
# Test concrete with f not overridden
#
>>> c2 = C2(42)
>>> c2.value()
42
# Call f indirectly from C++
>>> c2.call_f(y1)
16
# Call f directly from Python
>>> c2.f(y2)
17
'''
def run(args = None):
import sys
import doctest
if args is not None:
sys.argv = args
return doctest.testmod(sys.modules.get(__name__))
if __name__ == '__main__':
print("running...")
import sys
status = run()[0]
if (status == 0): print("Done.")
sys.exit(status)
|