111 lines
1.8 KiB
Python
111 lines
1.8 KiB
Python
# Copyright David Abrahams 2004. Distributed under the Boost
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# Software License, Version 1.0. (See accompanying
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# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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'''
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>>> from virtual_functions_ext import *
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>>> class C1(concrete):
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... def f(self, y):
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... return concrete.f(self, Y(-y.value()))
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>>> class C2(concrete):
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... pass
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>>> class A1(abstract):
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... def f(self, y):
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... return y.value() * 2
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... def g(self, y):
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... return self
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>>> class A2(abstract):
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... pass
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>>> y1 = Y(16)
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>>> y2 = Y(17)
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#
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# Test abstract with f,g overridden
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#
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>>> a1 = A1(42)
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>>> a1.value()
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42
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# Call f,g indirectly from C++
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>>> a1.call_f(y1)
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32
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>>> assert type(a1.call_g(y1)) is abstract
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# Call f directly from Python
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>>> a1.f(y2)
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34
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#
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# Test abstract with f not overridden
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#
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>>> a2 = A2(42)
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>>> a2.value()
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42
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# Call f indirectly from C++
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>>> try: a2.call_f(y1)
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... except AttributeError: pass
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... else: print('no exception')
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# Call f directly from Python
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>>> try: a2.call_f(y2)
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... except AttributeError: pass
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... else: print('no exception')
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############# Concrete Tests ############
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#
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# Test concrete with f overridden
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#
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>>> c1 = C1(42)
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>>> c1.value()
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42
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# Call f indirectly from C++
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>>> c1.call_f(y1)
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-16
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# Call f directly from Python
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>>> c1.f(y2)
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-17
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#
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# Test concrete with f not overridden
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#
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>>> c2 = C2(42)
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>>> c2.value()
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42
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# Call f indirectly from C++
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>>> c2.call_f(y1)
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16
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# Call f directly from Python
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>>> c2.f(y2)
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17
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'''
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def run(args = None):
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import sys
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import doctest
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if args is not None:
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sys.argv = args
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return doctest.testmod(sys.modules.get(__name__))
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if __name__ == '__main__':
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print("running...")
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import sys
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status = run()[0]
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if (status == 0): print("Done.")
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sys.exit(status)
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