1 files changed, 110 insertions, 0 deletions
diff --git a/src/boost/libs/python/test/virtual_functions.py b/src/boost/libs/python/test/virtual_functions.py
new file mode 100644
index 000000000..cba21edd6
--- /dev/null
+++ b/src/boost/libs/python/test/virtual_functions.py
@@ -0,0 +1,110 @@
+# 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)