def test_action(self):
h = TextHistory()
action = InsertAction(pos=0, text='abc', from_version=0, to_version=10)
self.assertEqual(10, h.action(action))
self.assertEqual('abc', h.text)
self.assertEqual(10, h.version)
def test_action__bad(self):
h = TextHistory()
action = InsertAction(pos=0,
text='abc',
from_version=10,
to_version=10)
with self.assertRaises(ValueError):
h.action(action)
def test_insert_opt(self):
h = TextHistory()
h.insert('a' * 10)
h.insert('x', pos=3)
h.insert('yz', pos=4)
self.assertEqual('aaaxyzaaaaaaa', h.text)
actions = h.get_actions(1)
self.assertEqual(1, len(actions))
action = actions[0]
self.assertIsInstance(action, InsertAction)
opt_value = InsertAction(3, 'xyz', 1, 3)
self.assertEqual(action.__dict__, opt_value.__dict__)
