  from nose.tools import assert_equal, assert_raises
  
  
  class TestIslandPerimeter(object):
  
      def test_island_perimeter(self):
 
</s> remove class TestIslandPerimeter(object):
 </s> add class TestIslandPerimeter(unittest.TestCase): </s> remove from nose.tools import assert_equal, assert_raises
 </s> add import unittest </s> remove from nose.tools import assert_equal, assert_raises
 </s> add import unittest </s> remove from nose.tools import assert_equal, assert_raises
 </s> add import unittest </s> remove from nose.tools import assert_equal, assert_raises
 </s> add import unittest
import unittest
import unittest
  
  
  class TestIslandPerimeter(object):
  
      def test_island_perimeter(self):
replace keep keep keep keep keep
 #273: Remove nose dependency for online_judges/ (#282) 
online_judges/island_perimeter/test_island_perimeter.py