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_optimise_replace(self):
h = TextHistory()
h.insert('abcdefgh')
h.replace('abc', 0)
h.replace('woa', 0)
actions = h.get_actions()
self.assertEqual(2, len(actions))
th = TextHistory()
for act in actions:
th.action(act)
self.assertEqual(h.text, th.text)
def test_optimise_del(self):
h = TextHistory()
h.insert('abcdefgh')
h.delete(2, 2)
h.delete(2, 3)
actions = h.get_actions()
self.assertEqual(2, len(actions))
th = TextHistory()
for act in actions:
th.action(act)
self.assertEqual(h.text, th.text)
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)