ceph/src/boost/libs/python/test/boost_shared_ptr.py

   1 # Copyright David Abrahams 2004. Distributed under the Boost
   2 # Software License, Version 1.0. (See accompanying
   3 # file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   4 '''
   5 >>> from boost_shared_ptr_ext import *
   6
   7    Test that shared_ptr<Derived> can be converted to shared_ptr<Base>
   8
   9 >>> Y.store(YYY(42))
  10
  11 >>> x = X(17)
  12 >>> null_x = null(x)
  13 >>> null_x # should be None
  14 >>> identity(null_x) # should also be None
  15
  16 >>> a = New(1)
  17 >>> A.call_f(a)
  18 1
  19 >>> New(0)
  20
  21 >>> type(factory(3))
  22 <class 'boost_shared_ptr_ext.Y'>
  23 >>> type(factory(42))
  24 <class 'boost_shared_ptr_ext.YY'>
  25
  26 >>> class P(Z):
  27 ...     def v(self):
  28 ...         return -Z.v(self);
  29 ...     def __del__(self):
  30 ...         print('bye')
  31 ...
  32 >>> p = P(12)
  33 >>> p.value()
  34 12
  35 >>> p.v()
  36 -12
  37 >>> look(p)
  38 12
  39 >>> try: modify(p)
  40 ... except TypeError: pass
  41 ... else: 'print(expected a TypeError)'
  42 >>> look(None)
  43 -1
  44 >>> store(p)
  45 >>> del p
  46 >>> Z.get().v()
  47 -12
  48 >>> Z.count()
  49 1
  50 >>> Z.look_store()
  51 12
  52 >>> Z.release()
  53 bye
  54 >>> Z.count()
  55 0
  56
  57 >>> z = Z(13)
  58 >>> z.value()
  59 13
  60 >>> z.v()
  61 13
  62 >>> try: modify(z)
  63 ... except TypeError: pass
  64 ... else: 'print(expected a TypeError)'
  65
  66 >>> Z.get() # should be None
  67 >>> store(z)
  68 >>> assert Z.get() is z  # show that deleter introspection works
  69 >>> del z
  70 >>> Z.get().value()
  71 13
  72 >>> Z.count()
  73 1
  74 >>> Z.look_store()
  75 13
  76 >>> Z.release()
  77 >>> Z.count()
  78 0
  79
  80 >>> x = X(17)
  81 >>> x.value()
  82 17
  83 >>> look(x)
  84 17
  85 >>> try: modify(x)
  86 ... except TypeError: pass
  87 ... else: 'print(expected a TypeError)'
  88 >>> look(None)
  89 -1
  90 >>> store(x)
  91 >>> del x
  92 >>> X.count()
  93 1
  94 >>> X.look_store()
  95 17
  96 >>> X.release()
  97 >>> X.count()
  98 0
  99
 100
 101 >>> y = Y(19)
 102 >>> y.value()
 103 19
 104 >>> modify(y)
 105 >>> look(y)
 106 -1
 107 >>> store(Y(23))
 108 >>> Y.count()
 109 1
 110 >>> Y.look_store()
 111 23
 112 >>> Y.release()
 113 >>> Y.count()
 114 0
 115 '''
 116
 117 def run(args = None):
 118     import sys
 119     import doctest
 120
 121     if args is not None:
 122         sys.argv = args
 123     return doctest.testmod(sys.modules.get(__name__))
 124
 125 if __name__ == '__main__':
 126     print("running...")
 127     import sys
 128     status = run()[0]
 129     if (status == 0): print("Done.")
 130     sys.exit(status)