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43 lines
1020 B
43 lines
1020 B
2 years ago
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"""Test if VTK-Python objects support weak referencing.
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Run this test like so:
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$ vtkpython TestWeakref.py
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or
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$ python TestWeakref.py
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Created on July, 8 2005
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Prabhu Ramachandran <prabhu_r at users dot sf dot net>
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"""
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import sys
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import vtk
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from vtk.test import Testing
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try:
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import weakref
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except ImportError:
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print "No weakref in this version of Python. Time to upgrade?"
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print "Python version:", sys.version
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sys.exit(0)
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class TestWeakref(Testing.vtkTest):
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def testWeakref(self):
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o = vtk.vtkObject()
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ref = weakref.ref(o)
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self.assertEqual(ref().GetClassName(), 'vtkObject')
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del o
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self.assertEqual(ref(), None)
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def testProxy(self):
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o = vtk.vtkObject()
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proxy = weakref.proxy(o)
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self.assertEqual(proxy.GetClassName(), 'vtkObject')
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del o
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self.assertRaises(weakref.ReferenceError, getattr,
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proxy, 'GetClassName')
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if __name__ == "__main__":
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Testing.main([(TestWeakref, 'test')])
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