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"""Test the use of preconditions with VTK_EXPECTS()
"""
import sys
from vtkmodules.vtkCommonCore import (
vtkDoubleArray,
vtkPoints,
)
from vtkmodules.test import Testing
class TestExpects(Testing.vtkTest):
def testPoints(self):
"""Test the index limits for vtkPoints
"""
points = vtkPoints()
p = (1.0, 2.0, 3.0)
points.InsertNextPoint(p)
self.assertEqual(points.GetPoint(0), p)
with self.assertRaises(ValueError):
points.GetPoint(-1)
with self.assertRaises(ValueError):
points.GetPoint(1)
with self.assertRaises(ValueError):
points.SetPoint(-1, p)
with self.assertRaises(ValueError):
points.SetPoint(1, p)
def testArray(self):
"""Test values, tuples, components of arrays
"""
array = vtkDoubleArray()
array.SetNumberOfComponents(2)
t = (2.0, 10.0)
array.InsertNextTuple(t)
array.InsertNextTuple(t)
array.InsertNextTuple(t)
self.assertEqual(array.GetTuple(0), t)
self.assertEqual(array.GetTuple(2), t)
with self.assertRaises(ValueError):
array.GetTuple(-1)
with self.assertRaises(ValueError):
array.GetTuple(3)
with self.assertRaises(ValueError):
array.SetTuple(-1, t)
with self.assertRaises(ValueError):
array.SetTuple(3, t)
self.assertEqual(array.GetValue(0), 2.0)
self.assertEqual(array.GetValue(5), 10.0)
with self.assertRaises(ValueError):
array.GetValue(-1)
with self.assertRaises(ValueError):
array.GetValue(6)
with self.assertRaises(ValueError):
array.SetValue(-1, 2.0)
with self.assertRaises(ValueError):
array.SetValue(6, 10.0)
self.assertEqual(array.GetComponent(0, 1), 10.0)
with self.assertRaises(ValueError):
array.GetComponent(0, -1)
with self.assertRaises(ValueError):
array.GetComponent(0, 2)
with self.assertRaises(ValueError):
array.GetComponent(-1, 0)
with self.assertRaises(ValueError):
array.GetComponent(3, 1)
with self.assertRaises(ValueError):
array.SetComponent(0, -1, 0.0)
with self.assertRaises(ValueError):
array.SetComponent(0, 2, 0.0)
with self.assertRaises(ValueError):
array.SetComponent(-1, 0, 0.0)
with self.assertRaises(ValueError):
array.SetComponent(3, 1, 0.0)
if __name__ == "__main__":
Testing.main([(TestExpects, 'test')])
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