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"""Test support of VTK singleton objects
Created on Aug 30, 2017 by David Gobbi
"""
import sys
import vtk
from vtk.test import Testing
class TestSingleton(Testing.vtkTest):
def testOutputWindow(self):
a = vtk.vtkOutputWindow()
b = vtk.vtkOutputWindow()
self.assertNotEqual(a, b)
c = vtk.vtkOutputWindow.GetInstance()
d = vtk.vtkOutputWindow.GetInstance()
self.assertIs(c, d)
def testObject(self):
a = vtk.vtkObject()
b = vtk.vtkObject()
self.assertNotEqual(a, b)
if __name__ == "__main__":
Testing.main([(TestSingleton, 'test')])
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