def test_insert_at_0_on_empty_list(self):
"""
Tests insertion of node on empty list
"""
l = LinkedList()
l.insert_at("hi", 0)
self.assertEqual(l.get_first().data, "hi")
def test_insert_at_out_of_bounds(self):
"""
Tests that node is inserted at the end of a list when index is out of bounds
"""
l = LinkedList()
l.insert_last("a")
l.insert_last("b")
l.insert_at("hi", 30)
self.assertEqual(l.get_at(0).data, "a")
self.assertEqual(l.get_at(1).data, "b")
self.assertEqual(l.get_at(2).data, "hi")
def test_insert_at_last_index(self):
"""
Tests for insertion of node at the end of a list
"""
l = LinkedList()
l.insert_last("a")
l.insert_last("b")
l.insert_at("hi", 2)
self.assertEqual(l.get_at(0).data, "a")
self.assertEqual(l.get_at(1).data, "b")
self.assertEqual(l.get_at(2).data, "hi")
def test_insert_at_0_non_empty_list(self):
"""
Tests for insertion of node at index 0 on non-empty list
"""
l = LinkedList()
l.insert_last("a")
l.insert_last("b")
l.insert_last("c")
l.insert_at("hi", 0)
self.assertEqual(l.get_at(0).data, "hi")
self.assertEqual(l.get_at(1).data, "a")
self.assertEqual(l.get_at(2).data, "b")
self.assertEqual(l.get_at(3).data, "c")
def test_insert_at_middle_index(self):
"""
Test for insertion of node at index in the middle of a list
"""
l = LinkedList()
l.insert_last("a")
l.insert_last("b")
l.insert_last("c")
l.insert_last("d")
l.insert_at("hi", 2)
self.assertEqual(l.get_at(0).data, "a")
self.assertEqual(l.get_at(1).data, "b")
self.assertEqual(l.get_at(2).data, "hi")
self.assertEqual(l.get_at(3).data, "c")
self.assertEqual(l.get_at(4).data, "d")
