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import unittest
from unittests import wtc
import wx
#---------------------------------------------------------------------------
# This test will ensure that a virtual C++ method from a base class can
# be overridden in a derived class implemented in Python, and that when
# the C++ method is called from C++ that the Python override is called.
# In addition the Python override will pass the call on to the base class
# implementation and this test will ensure that is successful as well.
#
# The AddChild method is a good cantidate for this test because it is
# easy to induce a call from C++ (just create a child window) and it is
# easy to test if the calling the base class AddChild works (the length
# of the GetChildren list will increase.)
class MyTestPanel(wx.Panel):
def __init__(self, *args, **kw):
wx.Panel.__init__(self, *args, **kw)
self.methodCalled = False
def AddChild(self, child):
self.methodCalled = True
if 1:
super(MyTestPanel, self).AddChild(child)
else:
wx.Panel.AddChild(self, child)
class virtualOverride_Tests(wtc.WidgetTestCase):
def test_virtualOverride(self):
p = MyTestPanel(self.frame)
count = len(p.Children)
b = wx.Button(p, -1, "Hello, I am a button")
self.assertTrue(p.methodCalled)
self.assertTrue(len(p.Children) == count+1)
#---------------------------------------------------------------------------
if __name__ == '__main__':
unittest.main()
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