code: from pkg_resources import resource_filename
  from compliance_checker.suite import CheckSuite
  from compliance_checker.base import Result, BaseCheck
  import numpy as np
  import unittest
  import os
  
  static_files = {
      '2dim'                       : resource_filename('compliance_checker', 'tests/data/2dim-grid.nc'),
      'bad_region'                 : resource_filename('compliance_checker', 'tests/data/bad_region.nc'),
      'bad_data_type'              : resource_filename('compliance_checker', 'tests/data/bad_data_type.nc'),
      'test_cdl'                   : resource_filename('compliance_checker', 'tests/data/test_cdl.cdl'),
      'test_cdl_nc'                : resource_filename('compliance_checker', 'tests/data/test_cdl_nc_file.nc'),
  }
  
  
  class TestSuite(unittest.TestCase):
      # @see
      # http://www.saltycrane.com/blog/2012/07/how-prevent-nose-unittest-using-docstring-when-verbosity-2/
  
      def shortDescription(self):
          return None
  
      # override __str__ and __repr__ behavior to show a copy-pastable nosetest name for ion tests
      #  ion.module:TestClassName.test_function_name
      def __repr__(self):
          name = self.id()
          name = name.split('.')
          if name[0] not in ["ion", "pyon"]:
              return "%s (%s)" % (name[-1], '.'.join(name[:-1]))
          else:
              return "%s ( %s )" % (name[-1], '.'.join(name[:-2]) + ":" + '.'.join(name[-2:]))
      __str__ = __repr__
  
      def test_suite(self):
          # BWA: what's the purpose of this test?  Just to see if the suite
          # runs without errors?
          cs = CheckSuite()
          cs.load_all_available_checkers()
          ds = cs.load_dataset(static_files['2dim'])
          cs.run(ds, 'acdd')
  
      def test_unicode_formatting(self):
          cs = CheckSuite()
          cs.load_all_available_checkers()
          ds = cs.load_dataset(static_files['bad_region'])
          score_groups = cs.run(ds, 'cf')
  
          limit = 2
          for checker, rpair in score_groups.items():
              groups, errors = rpair
              score_list, points, out_of = cs.standard_output(limit, checker, groups)
              # This asserts that print is able to generate all of the unicode output
              cs.non_verbose_output_generation(score_list, groups, limit, points, out_of)
  
      def test_skip_checks(self):
          """Tests that checks are properly skipped when specified"""
          cs = CheckSuite()
          cs.load_all_available_checkers()
          ds = cs.load_dataset(static_files['2dim'])
          # exclude title from the check attributes
          score_groups = cs.run(ds, ['check_high'], 'acdd')
          assert all(sg.name not in {'Conventions', 'title', 'keywords',
                                     'summary'} for sg in score_groups['acdd'][0])
  
      def test_group_func(self):
          # This is checking for issue #183, where group_func results in
          # IndexError: list index out of range
          cs = CheckSuite()
          cs.load_all_available_checkers()
          ds = cs.load_dataset(static_files['bad_data_type'])
          score_groups = cs.run(ds, 'cf')
  
          limit = 2
          for checker, rpair in score_groups.items():
              groups, errors = rpair
              score_list, points, out_of = cs.standard_output(limit, checker, groups)
              # This asserts that print is able to generate all of the unicode output
              cs.non_verbose_output_generation(score_list, groups, limit, points, out_of)
  
      def test_score_grouping(self):
          # Testing the grouping of results for output, which can fail
          # if some assumptions are not met, e.g. if a Result object has
          # a value attribute of unexpected type
          cs = CheckSuite()
          res = [
              Result(BaseCheck.MEDIUM, True, 'one'),
              Result(BaseCheck.MEDIUM, (1, 3), 'one'),
              Result(BaseCheck.MEDIUM, None, 'one'),
              Result(BaseCheck.MEDIUM, True, 'two'),
              Result(BaseCheck.MEDIUM, np.isnan(1), 'two')  # value is type numpy.bool_
          ]
          score = cs.scores(res)
          self.assertEqual(score[0].name, 'one')
          self.assertEqual(score[0].value, (2, 4))
          self.assertEqual(score[1].name, 'two')
          self.assertEqual(score[1].value, (1, 2))
  
      def test_cdl_file(self):
          # Testing whether you can run compliance checker on a .cdl file
          cs = CheckSuite()
          cs.load_all_available_checkers()
  
          # Load the cdl file
          ds = cs.load_dataset(static_files['test_cdl'])
          vals = cs.run(ds, 'cf')
  
          limit = 2
          for checker, rpair in vals.items():
              groups, errors = rpair
              score_list, cdl_points, cdl_out_of = cs.standard_output(limit, checker, groups)
              # This asserts that print is able to generate all of the unicode output
              cs.non_verbose_output_generation(score_list, groups, limit, cdl_points, cdl_out_of)
          ds.close()
  
          # Ok now load the nc file that it came from
          ds = cs.load_dataset(static_files['test_cdl_nc'])
          vals = cs.run(ds, 'cf')
  
          limit = 2
          for checker, rpair in vals.items():
              groups, errors = rpair
              score_list, nc_points, nc_out_of = cs.standard_output(limit, checker, groups)
              # This asserts that print is able to generate all of the unicode output
              cs.non_verbose_output_generation(score_list, groups, limit, nc_points, nc_out_of)
          ds.close()
  
          nc_file_path = static_files['test_cdl'].replace('.cdl', '.nc')
          self.addCleanup(os.remove, nc_file_path)
  
          # Ok the scores should be equal!
          self.assertEqual(nc_points, cdl_points)
          self.assertEqual(nc_out_of, cdl_out_of)
  
apis: numpy.isnan