def test_prepend_multiple_elements(self):
l = LinkedList([2, 3, 4])
l.prepend(1)
l.prepend(0)
self.assertTrue(l.getElementAtIndex(0) == 0)
self.assertTrue(l.getElementAtIndex(1) == 1)
def test_get_first_element_empty_list(self):
l = LinkedList()
with self.assertRaises(RuntimeError):
l.getElementAtIndex(0)
def test_prepend_one_elemen(self):
l = LinkedList([4, 5, 6])
l.prepend(1)
self.assertTrue(l.getElementAtIndex(0) == 1)
