def test_equal_2(self):
     self.assertEqual(sum_list([1, 1]), 2)
 def test_equal_5(self):
     self.assertEqual(sum_list([1, 2, 3]), 6)
 def test_equal_1(self):
     self.assertEqual(sum_list([]), 0)
 def test_equal_4(self):
     self.assertEqual(sum_list([2, 2, 2]), 6)