def test_coord_transform(self):
cyl_coords_1 = (1.0,1.0,1.0)
dummy_coords_1 = Coords('cylindrical',cyl_coords_1)
dummy_coords_1.load_transform(DummyCoordTransform)
# The DummyCoordinateTransform should map (a,b,c) -> (2a,3b,4c)
self.assertEqual(dummy_coords_1.dummy(), (2*cyl_coords_1[0],
3*cyl_coords_1[1],
4*cyl_coords_1[2]))
# Check again with different ccoordinated.
cyl_coords_2 = (2.0,1.0,4.0)
dummy_coords_2 = Coords('cylindrical',cyl_coords_2)
dummy_coords_2.load_transform(DummyCoordTransform)
self.assertEqual(dummy_coords_2.dummy(), (2*cyl_coords_2[0],
3*cyl_coords_2[1],
4*cyl_coords_2[2]))
