  from nose.tools import assert_equal
  from nose.tools import raises
  
  
  class TestBstValidate(object):
  
      @raises(Exception)
 
</s> remove class TestBstValidate(object):
 </s> add class TestBstValidate(unittest.TestCase): </s> remove from nose.tools import assert_equal
from nose.tools import raises
 </s> add import unittest </s> remove class TestBstSuccessor(object):
 </s> add class TestBstSuccessor(unittest.TestCase): </s> remove from nose.tools import assert_equal
from nose.tools import raises
 </s> add import unittest </s> remove class TestCheckBalance(object):
 </s> add class TestCheckBalance(unittest.TestCase):
import unittest
import unittest
import unittest
  
  
  class TestBstValidate(object):
  
      @raises(Exception)
replace replace keep keep keep keep keep
 #273: Remove nose dependency for graphs_trees/ (#277) 
graphs_trees/bst_validate/test_bst_validate.py