old_contents: from __future__ import absolute_import
  from sfepy.base.testing import TestCommon
  
  class Test(TestCommon):
  
      @staticmethod
      def from_conf(conf, options):
          test = Test(conf=conf, options=options)
          return test
  
      def test_mesh_expand(self):
          import numpy as nm
          from sfepy.mesh.mesh_tools import expand2d
          from sfepy.discrete.fem.mesh import Mesh
          from sfepy import data_dir
  
          mesh2d = Mesh.from_file(data_dir + '/meshes/2d/square_quad.mesh')
          mesh3d_ref = Mesh.from_file(data_dir +\
                                      '/meshes/3d/cube_medium_hexa.mesh')
          mesh3d_gen = expand2d(mesh2d, 0.1, 10)
          mesh3d_gen.coors[:,2] += -0.5
  
          d0 = nm.sort(nm.linalg.norm(mesh3d_ref.coors, axis=1))
          d1 = nm.sort(nm.linalg.norm(mesh3d_gen.coors, axis=1))
          if nm.linalg.norm(d0 - d1) < 1e-6:
              return True
  
          else:
              return False
  
          return True
  
new_contents: def test_mesh_expand():
      import numpy as nm
      from sfepy.mesh.mesh_tools import expand2d
      from sfepy.discrete.fem.mesh import Mesh
      from sfepy import data_dir
  
      mesh2d = Mesh.from_file(data_dir + '/meshes/2d/square_quad.mesh')
      mesh3d_ref = Mesh.from_file(data_dir +\
                                  '/meshes/3d/cube_medium_hexa.mesh')
      mesh3d_gen = expand2d(mesh2d, 0.1, 10)
      mesh3d_gen.coors[:,2] += -0.5
  
      d0 = nm.sort(nm.linalg.norm(mesh3d_ref.coors, axis=1))
      d1 = nm.sort(nm.linalg.norm(mesh3d_gen.coors, axis=1))
      ok =  nm.linalg.norm(d0 - d1) < 1e-6
      assert ok
  
subject: update test_mesh_expand.py for pytest