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"""Test methods that use default parameter values.
Created on Feb 9, 2016 by David Gobbi
"""
import sys
from vtkmodules.vtkCommonCore import (
VTK_UNSIGNED_CHAR,
vtkIntArray,
)
from vtkmodules.vtkCommonDataModel import vtkImageData
from vtkmodules.vtkImagingCore import (
vtkImagePointDataIterator,
vtkImagePointIterator,
)
from vtkmodules.test import Testing
class TestDefaultArgs(Testing.vtkTest):
def testDefaultInt(self):
"""Simple test of an integer arg with default value."""
image = vtkImageData()
image.SetExtent(0,9,0,9,0,9)
image.AllocateScalars(VTK_UNSIGNED_CHAR, 1)
ipi = vtkImagePointIterator()
# call this method with the threadId parameter set to 0
ipi.Initialize(image, (0,9,0,9,0,9), None, None, 0)
# call this method without the threadId parameter
ipi.Initialize(image, (0,9,0,9,0,9), None, None)
def testDefaultObjectPointer(self):
"""Test a vtkObject pointer arg with default value of 0."""
image = vtkImageData()
image.SetExtent(0,9,0,9,0,9)
image.AllocateScalars(VTK_UNSIGNED_CHAR, 1)
ipi = vtkImagePointIterator()
# call this method with the stencil parameter set to None
ipi.Initialize(image, (0,9,0,9,0,9), None)
# call this method without the stencil parameter
ipi.Initialize(image, (0,9,0,9,0,9))
def testDefaultArray(self):
"""Test an array arg with default value of 0."""
image = vtkImageData()
image.SetExtent(0,9,0,9,0,9)
image.AllocateScalars(VTK_UNSIGNED_CHAR, 1)
ipi = vtkImagePointIterator()
# call this method with the parameter set
ipi.Initialize(image, (0,9,0,9,0,9))
# call this method without extent parameter
ipi.Initialize(image)
def testDefaultPointer(self):
"""Test a POD pointer arg with default value of 0."""
a = vtkIntArray()
a.SetNumberOfComponents(3)
# pass an int pointer arg, expect something back
inc = [0]
vtkImagePointDataIterator.GetVoidPointer(a, 0, inc)
self.assertEqual(inc, [3])
# do not pass the pointer arg, default value 0 is passed
vtkImagePointDataIterator.GetVoidPointer(a, 0)
if __name__ == "__main__":
Testing.main([(TestDefaultArgs, 'test')])
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