code: def test_no_transform(self):
      # Transform and regrid vector (with no projection transform).
      expected_x_grid = np.array(
          [
              [-10.0, -5.0, 0.0, 5.0, 10.0],
              [-10.0, -5.0, 0.0, 5.0, 10.0],
              [-10.0, -5.0, 0.0, 5.0, 10.0],
          ]
      )
      expected_y_grid = np.array(
          [
              [5.0, 5.0, 5.0, 5.0, 5.0],
              [7.5, 7.5, 7.5, 7.5, 7.5],
              [10.0, 10.0, 10.0, 10.0, 10],
          ]
      )
      expected_u_grid = np.array(
          [
              [np.nan, 2.0, 3.0, 2.0, np.nan],
              [np.nan, 2.5, 3.5, 2.5, np.nan],
              [2.0, 3.0, 4.0, 3.0, 2.0],
          ]
      )
      expected_v_grid = np.array(
          [
              [np.nan, 0.8, 0.3, 0.8, np.nan],
              [np.nan, 2.675, 2.15, 2.675, np.nan],
              [5.5, 4.75, 4.0, 4.75, 5.5],
          ]
      )
  
      src_crs = target_crs = ccrs.PlateCarree()
      x_grid, y_grid, u_grid, v_grid = vec_trans.vector_scalar_to_grid(
          src_crs, target_crs, (5, 3), self.x, self.y, self.u, self.v
      )
  
      assert_array_equal(x_grid, expected_x_grid)
      assert_array_equal(y_grid, expected_y_grid)
      assert_array_almost_equal(u_grid, expected_u_grid)
      assert_array_almost_equal(v_grid, expected_v_grid)
  
file_path: cartopy/lib/cartopy/tests/test_vector_transform.py
imports: import numpy
  from numpy.testing import assert_array_almost_equal, assert_array_equal
  import pytest
  import cartopy.crs
  import cartopy.vector_transform
label_desc: Use image node_id 2 for calling the Test_vector_scalar_to_grid obj's underlying member method code with example usage: obj.test_no_transform() without return types