  from nose.tools import assert_equal
  
  
  class TestGraph(object):
  
      def create_graph(self):
          graph = Graph()
          for key in range(0, 6):
              graph.add_node(key)
 
</s> remove class TestPathExists(object):
 </s> add class TestPathExists(unittest.TestCase): </s> remove class TestShortestPath(object):
 </s> add class TestShortestPath(unittest.TestCase): </s> remove from nose.tools import assert_equal
 </s> add import unittest </s> remove class TestShortestPath(object):
 </s> add class TestShortestPath(unittest.TestCase): </s> remove     "class TestGraph(object):\n",
 </s> add     "class TestGraph(unittest.TestCase):\n",
class TestGraph(unittest.TestCase):
  from nose.tools import assert_equal
  
  
class TestGraph(unittest.TestCase):
  
      def create_graph(self):
          graph = Graph()
          for key in range(0, 6):
              graph.add_node(key)
keep keep keep replace keep keep keep keep keep
 #273: Remove nose dependency for graphs_trees/ (#277) 
graphs_trees/graph/test_graph.py