      "class TestSolution(object):\n",
      "\n",
      "    def test_find_busiest_period(self):\n",
      "        solution = Solution()\n",
      "        assert_raises(TypeError, solution.find_busiest_period, None)\n",
      "        assert_equal(solution.find_busiest_period([]), None)\n",
      "        data = [\n",
      "            Data(3, 2, EventType.EXIT),\n",
      "            Data(1, 2, EventType.ENTER),\n",
      "            Data(3, 1, EventType.ENTER),\n",
      "            Data(7, 3, EventType.ENTER),\n",
 
</s> remove     "        assert_raises(TypeError, solution.find_busiest_period, None)\n",
    "        assert_equal(solution.find_busiest_period([]), None)\n",
 </s> add     "        self.assertRaises(TypeError, solution.find_busiest_period, None)\n",
    "        self.assertEqual(solution.find_busiest_period([]), None)\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_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     "class TestSolution(object):\n",
 </s> add     "class TestSolution(unittest.TestCase):\n",
    "        self.assertRaises(TypeError, solution.find_busiest_period, None)\n",
    "        self.assertEqual(solution.find_busiest_period([]), None)\n",
      "class TestSolution(object):\n",
      "\n",
      "    def test_find_busiest_period(self):\n",
      "        solution = Solution()\n",
    "        self.assertRaises(TypeError, solution.find_busiest_period, None)\n",
    "        self.assertEqual(solution.find_busiest_period([]), None)\n",
    "        self.assertRaises(TypeError, solution.find_busiest_period, None)\n",
    "        self.assertEqual(solution.find_busiest_period([]), None)\n",
      "        data = [\n",
      "            Data(3, 2, EventType.EXIT),\n",
      "            Data(1, 2, EventType.ENTER),\n",
      "            Data(3, 1, EventType.ENTER),\n",
      "            Data(7, 3, EventType.ENTER),\n",
keep keep keep keep replace replace keep keep keep keep keep
 #273: Remove nose dependency for online_judges/ (#282) 
online_judges/busiest_period/busiest_period_challenge.ipynb