old_contents: import unittest
  import os
  
  from cmt.printers.nc.read import field_fromfile
  
  
  class DataTestFileMixIn(object):
      def data_file(self, name):
          return os.path.join(self.data_dir(), name)
  
      def data_dir(self):
          return os.path.join(os.path.dirname(__file__), 'data')
  
  
  class TestNetcdfRead(unittest.TestCase, DataTestFileMixIn):
      def test_unstructured_2d(self):
          field = field_fromfile(self.data_file('unstructured.2d.nc'),
                                 format='NETCDF4')
  
      def test_rectilinear_1d(self):
          field = field_fromfile(self.data_file('rectilinear.1d.nc'),
                                 format='NETCDF4')
  
      def test_rectilinear_2d(self):
          field = field_fromfile(self.data_file('rectilinear.2d.nc'),
                                 format='NETCDF4')
  
      def test_rectilinear_3d(self):
          field = field_fromfile(self.data_file('rectilinear.3d.nc'),
                                 format='NETCDF4')
  
new_contents: import unittest
  import os
  import urllib2
  
  from cmt.printers.nc.read import field_fromfile
  
  
  def fetch_data_file(filename):
      url = ('http://csdms.colorado.edu/thredds/fileServer/benchmark/ugrid/' +
             filename)
      remote_file = urllib2.urlopen(url)
      with open(filename, 'w') as netcdf_file:
          netcdf_file.write(remote_file.read())
  
      return os.path.abspath(filename)
  
  
  class DataTestFileMixIn(object):
      def data_file(self, name):
          return os.path.join(self.data_dir(), name)
  
      def data_dir(self):
          return os.path.join(os.path.dirname(__file__), 'data')
  
  
  class TestNetcdfRead(unittest.TestCase, DataTestFileMixIn):
      def test_unstructured_2d(self):
          field = field_fromfile(fetch_data_file('unstructured.2d.nc'),
                                 format='NETCDF4')
  
      def test_rectilinear_1d(self):
          field = field_fromfile(fetch_data_file('rectilinear.1d.nc'),
                                 format='NETCDF4')
  
      def test_rectilinear_2d(self):
          field = field_fromfile(fetch_data_file('rectilinear.2d.nc'),
                                 format='NETCDF4')
  
      def test_rectilinear_3d(self):
          field = field_fromfile(fetch_data_file('rectilinear.3d.nc'),
                                 format='NETCDF4')
  
subject: Read test data files from a remote URL.