def test_get_by_index_above_size(self):
'''
When trying to access a node below index 0.
1. Index must be below 0.
2. LookupError expected
'''
ll = LinkedList()
with self.assertRaises(LookupError):
ll.get_at(1)
def test_get_by_index_not_int(self):
'''
When trying to access a node with a non-int index.
1. Index must be non-int.
2. TypeError expected.
'''
ll = LinkedList()
with self.assertRaises(TypeError):
ll.get_at("1")
def test_get_by_index(self):
'''
Returns the data attribute of the node at given index.
1. List size must be > 1.
2. Value must be present at given index.
'''
ll = LinkedList()
some_value = 15
ll.append("12")
ll.append(18)
ll.append(some_value)
self.assertEqual(ll.get_at(2), some_value)
def test_get_index_of(self):
'''
When trying to get the index of a given value.
1. The value must be added to the list beforehand.
2. Pass the value to the method.
3. Must return the index of the element.
'''
ll = LinkedList()
some_value = "Jolis!"
ll.append("A")
ll.append("B")
ll.append(some_value)
ll.append("C")
returnal = ll.get_index_of(some_value)
self.assertEqual(returnal, 2)
self.assertEqual(ll.get_at(returnal), some_value)