old_contents: from nose.tools import assert_is_instance, assert_list_equal, assert_raises
  import os
  import tempfile
  import shutil
  import numpy as np
  from scipy import io
  import nyudv2_to_lmdb as n2l
      
  class TestHandlingSplitsFile:
      
      @classmethod
      def setup_class(self):
          
          self.path_temp_dir = tempfile.mkdtemp()
          self.path_splits = os.path.join(self.path_temp_dir, 'foo.mat')
          
          data = {'testNdxs': np.array([[2], [4], [10]])}
          io.savemat(self.path_splits, data, oned_as='column')
          
          self.path_other = os.path.join(self.path_temp_dir, 'bar.mat')
          data = {'foo': np.array([[2], [4]])}
          io.savemat(self.path_other, data, oned_as='column')
          
      @classmethod
      def teardown_class(self):
          
          shutil.rmtree(self.path_temp_dir)
          
      def test_invalid_path_dir(self):
          
          assert_raises(IOError, n2l.split_matfile_to_val_list, os.curdir)
          
      def test_invalid_path(self):
          
          assert_raises(IOError, n2l.split_matfile_to_val_list, '/foo/bar.mat')
          
      def test_val_list(self):
          
          val_list = n2l.split_matfile_to_val_list(self.path_splits)
          assert_is_instance(val_list, list)
          assert_list_equal(val_list, [2, 4, 10])
          
      def test_val_list_other(self):
          
          assert_raises(KeyError, n2l.split_matfile_to_val_list, self.path_other)
          
new_contents: from nose.tools import assert_is_instance, assert_list_equal, assert_raises, \
      assert_true
  import os
  import tempfile
  import shutil
  import numpy as np
  from scipy import io
  import nyudv2_to_lmdb as n2l
      
  class TestHandlingSplitsFile:
      
      @classmethod
      def setup_class(self):
          
          self.path_temp_dir = tempfile.mkdtemp()
          self.path_splits = os.path.join(self.path_temp_dir, 'foo.mat')
          
          data = {'testNdxs': np.array([[2], [4], [10]])}
          io.savemat(self.path_splits, data, oned_as='column')
          
          self.path_other = os.path.join(self.path_temp_dir, 'bar.mat')
          data = {'foo': np.array([[2], [4]])}
          io.savemat(self.path_other, data, oned_as='column')
          
      @classmethod
      def teardown_class(self):
          
          shutil.rmtree(self.path_temp_dir)
          
      def test_invalid_path_dir(self):
          
          assert_raises(IOError, n2l.split_matfile_to_val_list, os.curdir)
          
      def test_invalid_path(self):
          
          assert_raises(IOError, n2l.split_matfile_to_val_list, '/foo/bar.mat')
          
      def test_invalid_ext(self):
          
          fpath = os.path.join(self.path_temp_dir, 'foo.txt')
          with open(fpath, 'w') as f:
              f.write('hello')
          
          assert_true(os.path.isfile(fpath))
          assert_raises(IOError, n2l.split_matfile_to_val_list, fpath)
          
      def test_val_list(self):
          
          val_list = n2l.split_matfile_to_val_list(self.path_splits)
          assert_is_instance(val_list, list)
          assert_list_equal(val_list, [1, 3, 9])
          
      def test_val_list_other(self):
          
          assert_raises(KeyError, n2l.split_matfile_to_val_list, self.path_other)
          
subject: fix assertion to zero-based indexing and add test around extension validation