def METHOD_NAME(self):
    heightmap = Heightmap()
    self.assertEqual('', heightmap.file_path())
    self.assertEqual('', heightmap.uri())
    self.assertEqual(Vector3d(1, 1, 1), heightmap.size())
    self.assertEqual(Vector3d.ZERO, heightmap.position())
    self.assertFalse(heightmap.use_terrain_paging())
    self.assertEqual(1, heightmap.sampling())
    self.assertEqual(0, heightmap.texture_count())
    self.assertEqual(0, heightmap.blend_count())
    self.assertEqual(None, heightmap.texture_by_index(0))
    self.assertEqual(None, heightmap.blend_by_index(0))
    heightmapTexture = HeightmapTexture()
    self.assertAlmostEqual(10.0, heightmapTexture.size())
    self.assertFalse(heightmapTexture.diffuse())
    self.assertFalse(heightmapTexture.normal())
    heightmapBlend = HeightmapBlend()
    self.assertAlmostEqual(0.0, heightmapBlend.min_height())
    self.assertAlmostEqual(0.0, heightmapBlend.fade_distance())