              Data(7, 3, EventType.ENTER),
              Data(9, 2, EventType.EXIT),
              Data(8, 2, EventType.EXIT),
          ]
          assert_equal(solution.find_busiest_period(data), Period(7, 8))
          print('Success: test_find_busiest_period')
  
  
  def main():
      test = TestSolution()
 
</s> remove     "        assert_equal(solution.find_busiest_period(data), Period(7, 8))\n",
 </s> add     "        self.assertEqual(solution.find_busiest_period(data), Period(7, 8))\n", </s> remove     "        assert_equal(solution.find_busiest_period(data), Period(7, 8))\n",
 </s> add     "        self.assertEqual(solution.find_busiest_period(data), Period(7, 8))\n", </s> remove         assert_raises(TypeError, solution.find_busiest_period, None)
        assert_equal(solution.find_busiest_period([]), None)
 </s> add         self.assertRaises(TypeError, solution.find_busiest_period, None)
        self.assertEqual(solution.find_busiest_period([]), None) </s> remove         assert_raises(TypeError, solution.find_max_profit, None)
        assert_raises(ValueError, solution.find_max_profit, [])
        assert_equal(solution.find_max_profit([8, 5, 3, 2, 1]), -1)
        assert_equal(solution.find_max_profit([5, 3, 7, 4, 2, 6, 9]), 7)
 </s> add         self.assertRaises(TypeError, solution.find_max_profit, None)
        self.assertRaises(ValueError, solution.find_max_profit, [])
        self.assertEqual(solution.find_max_profit([8, 5, 3, 2, 1]), -1)
        self.assertEqual(solution.find_max_profit([5, 3, 7, 4, 2, 6, 9]), 7) </s> remove         assert_equal(solution.length_longest_path(file_system), expected)
 </s> add         self.assertEqual(solution.length_longest_path(file_system), expected)
        self.assertEqual(solution.find_busiest_period(data), Period(7, 8))
              Data(7, 3, EventType.ENTER),
              Data(9, 2, EventType.EXIT),
              Data(8, 2, EventType.EXIT),
          ]
        self.assertEqual(solution.find_busiest_period(data), Period(7, 8))
          print('Success: test_find_busiest_period')
  
  
  def main():
      test = TestSolution()
keep keep keep keep replace keep keep keep keep keep
 #273: Remove nose dependency for online_judges/ (#282) 
online_judges/busiest_period/test_find_busiest_period.py