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# Copyright (c) 2015, Enthought, Inc.
# License: BSD Style.
# Standard library imports.
import unittest
# External library imports
import vtk
# Enthought library imports
from mayavi.sources.vtk_file_reader import VTKFileReader
# Local imports.
from mayavi.tests.common import get_example_data
class TestVTKFileReader(unittest.TestCase):
def setUp(self):
# Read a VTK data file.
self.src = VTKFileReader()
def tearDown(self):
"""For necessary clean up, automatically called by TestCase
after the test methods have been invoked"""
self.src = None
return
def check(self, n_points, n_cells):
"""Do the actual testing."""
output = self.src.get_output_dataset()
self.assertEqual(output.number_of_points, n_points)
self.assertEqual(output.number_of_cells, n_cells)
def test_structured_points_file(self):
self.src.initialize(get_example_data('texThres2.vtk'))
self.check(128, 127)
def test_rectiliner_grid_file(self):
self.src.initialize(get_example_data('RectGrid2.vtk'))
self.check(17061, 14720)
def test_polydata_file(self):
self.src.initialize(get_example_data('polyEx.vtk'))
self.check(8, 6)
def test_structured_grid_file(self):
self.src.initialize(get_example_data('SampleStructGrid.vtk'))
self.check(24000, 21489)
def test_unstructured_grid_file(self):
self.src.initialize(get_example_data('uGridEx.vtk'))
self.check(27, 12)
def test_field_file(self):
self.src.initialize(get_example_data('fieldfile.vtk'))
self.check(18, 3)
if __name__ == '__main__':
unittest.main()
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