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test_linked_list.py
117 lines (90 loc) · 3.5 KB
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test_linked_list.py
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import unittest
class TestLinkedList(unittest.TestCase):
def test_insert_to_front(self):
print('Test: insert_to_front on an empty list')
linked_list = LinkedList(None)
linked_list.insert_to_front(10)
self.assertEqual(linked_list.get_all_data(), [10])
print('Test: insert_to_front on a None')
linked_list.insert_to_front(None)
self.assertEqual(linked_list.get_all_data(), [10])
print('Test: insert_to_front general case')
linked_list.insert_to_front('a')
linked_list.insert_to_front('bc')
self.assertEqual(linked_list.get_all_data(), ['bc', 'a', 10])
print('Success: test_insert_to_front\n')
def test_append(self):
print('Test: append on an empty list')
linked_list = LinkedList(None)
linked_list.append(10)
self.assertEqual(linked_list.get_all_data(), [10])
print('Test: append a None')
linked_list.append(None)
self.assertEqual(linked_list.get_all_data(), [10])
print('Test: append general case')
linked_list.append('a')
linked_list.append('bc')
self.assertEqual(linked_list.get_all_data(), [10, 'a', 'bc'])
print('Success: test_append\n')
def test_find(self):
print('Test: find on an empty list')
linked_list = LinkedList(None)
node = linked_list.find('a')
self.assertEqual(node, None)
print('Test: find a None')
head = Node(10)
linked_list = LinkedList(head)
node = linked_list.find(None)
self.assertEqual(node, None)
print('Test: find general case with matches')
head = Node(10)
linked_list = LinkedList(head)
linked_list.insert_to_front('a')
linked_list.insert_to_front('bc')
node = linked_list.find('a')
self.assertEqual(str(node), 'a')
print('Test: find general case with no matches')
node = linked_list.find('aaa')
self.assertEqual(node, None)
print('Success: test_find\n')
def test_delete(self):
print('Test: delete on an empty list')
linked_list = LinkedList(None)
linked_list.delete('a')
self.assertEqual(linked_list.get_all_data(), [])
print('Test: delete a None')
head = Node(10)
linked_list = LinkedList(head)
linked_list.delete(None)
self.assertEqual(linked_list.get_all_data(), [10])
print('Test: delete general case with matches')
head = Node(10)
linked_list = LinkedList(head)
linked_list.insert_to_front('a')
linked_list.insert_to_front('bc')
linked_list.delete('a')
self.assertEqual(linked_list.get_all_data(), ['bc', 10])
print('Test: delete general case with no matches')
linked_list.delete('aa')
self.assertEqual(linked_list.get_all_data(), ['bc', 10])
print('Success: test_delete\n')
def test_len(self):
print('Test: len on an empty list')
linked_list = LinkedList(None)
self.assertEqual(len(linked_list), 0)
print('Test: len general case')
head = Node(10)
linked_list = LinkedList(head)
linked_list.insert_to_front('a')
linked_list.insert_to_front('bc')
self.assertEqual(len(linked_list), 3)
print('Success: test_len\n')
def main():
test = TestLinkedList()
test.test_insert_to_front()
test.test_append()
test.test_find()
test.test_delete()
test.test_len()
if __name__ == '__main__':
main()