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"""Test swig-style wrapped pointers
Created on Oct 2, 2014 by David Gobbi
"""
import sys
import vtk
from vtk.test import Testing
class TestSwigPointer(Testing.vtkTest):
def testVoidPointer(self):
a = vtk.vtkIntArray()
a.SetNumberOfTuples(1)
a.SetValue(0, 1)
b = vtk.vtkIntArray()
b.SetNumberOfTuples(1)
b.SetValue(0, 2)
ptr = a.GetVoidPointer(0)
# check the format _0123456789abcdef_p_void
self.assertEqual(ptr[0:1], "_")
self.assertEqual(ptr[-7:], "_p_void")
address = int(ptr[1:-7], 16)
# check that we can use the pointer
b.SetVoidArray(ptr, 1, 1)
self.assertEqual(b.GetValue(0), 1)
a.SetValue(0, 10)
self.assertEqual(b.GetValue(0), 10)
def testObjectPointer(self):
a = vtk.vtkInformation()
ptr = a.__this__
# check the format _0123456789abcdef_p_vtkInformation
self.assertEqual(ptr[0:1], "_")
self.assertEqual(ptr[-17:], "_p_vtkInformation")
address = int(ptr[1:-17], 16)
# create a VTK object from the swig pointer
b = vtk.vtkObject(ptr)
self.assertEqual(b.GetClassName(), a.GetClassName())
self.assertEqual(a.__this__, b.__this__)
self.assertEqual(a, b)
if __name__ == "__main__":
Testing.main([(TestSwigPointer, 'test')])
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