def test_it_should_search_the_right_side(self):
   binary_search = BinarySearch(self._ordered_list)
   assert binary_search.find(17) == True
 def test_it_should_return_false_if_val_not_in_list_low_val(self):
   binary_search = BinarySearch(self._ordered_list)
   assert binary_search.find(0) == False
 def test_it_should_return_true_if_root_node_is_val(self):
   binary_search = BinarySearch(self._ordered_list)
   assert binary_search.find(7) == True