def test_linked_list_includes_value():
"""Test a linked list can be checked for the inclusion of a value."""
value = 1
linked_list = LinkedList()
linked_list.insert(value)
assert linked_list.includes(value)
def test_ll_includes_false():
test = LinkedList()
test.insert('Apple')
expected = False
actual = test.includes('Banana')
assert actual == expected
def test_ll_includes_true():
test = LinkedList()
test.insert('Apple')
assert test.includes('Apple')
def test_ll_insert_multiple():
test = LinkedList()
test.insert('Apple')
test.insert('Cherry')
assert test.includes('Apple')
assert test.includes('Cherry')