text: import basevcstest
  
  
  class TestVCSIsofill(basevcstest.VCSBaseTest):
      def testIsofillNorthToSouth(self):
  
          clt = self.clt("clt", latitude=(80.0, 38.0), squeeze=1,
                         longitude=(-180.0, 180.0), time=slice(0, 1))
          gm = self.x.createisofill()
          gm.projection = "polar"
          self.x.plot(clt, gm, bg=self.bg)
          self.checkImage("test_vcs_isofill_data_read_north_to_south.png")
  