import unittest

from node import Node

class TestNode(unittest.TestCase):

def setUp(self):

self.next_node = Node('item 2')

self.node = Node('item 1',self.next_node)

def test_str(self):

self.assertEqual(str(self.node),'[item 1] -> [item 2]')

def test_get_item(self):

self.assertEqual(self.node.get_item(),'item 1')

def test_get_next(self):

self.assertIs(self.node.get_next(),self.next_node)

def test_set_item(self):

self.node.set_item('another item')

self.assertEqual(self.node.get_item(),'another item')

def test_set_next(self):

another_node = Node('another item')

self.node.set_next(another_node)

self.assertIs(self.node.get_next(),another_node)

if __name__ == '__main__':

unittest.main()