class_docstr: Test the forward parallax function with various inputs.
docstr: Test surface parallax displacement.
docstr_tok: ["Test","surface","parallax","displacement","."]
code: def test_get_surface_parallax_displacement(self):
      """Test surface parallax displacement."""
      from satpy.modifiers.parallax import (
          get_surface_parallax_displacement,
      )
  
      val = get_surface_parallax_displacement(
          0, 0, 36_000_000, 0, 10, 10_000
      )
      np.testing.assert_allclose(val, 2141.2404451757875)
  
imports: import datetime
  import logging
  import math
  import os
  import unittest.mock
  import dask.array
  import dask.config
  import numpy
  import pyorbital.tlefile
  import pyresample.kd_tree
  import pytest
  import xarray
  from pyproj import Geod
  from pyresample import create_area_def
  import satpy.resample
  from satpy.tests.utils import xfail_skyfield_unstable_numpy2
  from satpy.writers import get_enhanced_image
label_desc: Use image node_id 7 for calling the TestForwardParallax obj's underlying member method code with example usage: obj.test_get_surface_parallax_displacement() without return types