text: import helpers
  import pytest
  
  import meshio
  
  test_set = [helpers.tet_mesh]
  
  
  @pytest.mark.parametrize("mesh", test_set)
  def test(mesh):
      helpers.write_read(
          meshio.tetgen.write, meshio.tetgen.read, mesh, 1.0e-15, extension=".node"
      )
  