def test_get_actions(self):
h = TextHistory()
h.insert('a')
h.insert('bc')
h.replace('B', pos=1)
h.delete(pos=0, length=1)
self.assertEqual('Bc', h.text)
actions = h.get_actions(1)
self.assertEqual(3, len(actions))
insert, replace, delete = actions
self.assertIsInstance(insert, InsertAction)
self.assertIsInstance(replace, ReplaceAction)
self.assertIsInstance(delete, DeleteAction)
# insert
self.assertEqual(1, insert.from_version)
self.assertEqual(2, insert.to_version)
self.assertEqual('bc', insert.text)
self.assertEqual(1, insert.pos)
# replace
self.assertEqual(2, replace.from_version)
self.assertEqual(3, replace.to_version)
self.assertEqual('B', replace.text)
self.assertEqual(1, replace.pos)
# delete
self.assertEqual(3, delete.from_version)
self.assertEqual(4, delete.to_version)
self.assertEqual(0, delete.pos)
self.assertEqual(1, delete.length)
def test_replace__bad(self):
h = TextHistory()
self.assertEqual(1, h.insert('abc'))
with self.assertRaises(ValueError):
h.replace('abc', pos=10)
with self.assertRaises(ValueError):
h.replace('abc', pos=-1)
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_add_long_replace(self):
h = TextHistory()
h.insert('abcdef')
h.replace('xyz', pos=2)
h.replace('QRP', pos=4)
actions = h.get_actions()
self.assertEqual(2, len(actions))
v2 = actions[1]
self.assertEqual('xyQRP', v2.text)
self.assertEqual(2, v2.pos)
self.assertEqual(3, v2.to_version)
def test_trivial_replace(self):
h = TextHistory()
h.insert('abcdef')
h.replace('A', pos=0)
h.replace('B', pos=1)
actions = h.get_actions()
self.assertEqual(2, len(actions))
v2 = actions[1]
self.assertEqual('AB', v2.text)
self.assertEqual(0, v2.pos)
self.assertEqual(3, v2.to_version)
def test_insert_example(self):
h = TextHistory()
h.insert('abc qwe')
h.replace('A', pos=0)
h.insert('xy', pos=2)
h.insert('z', pos=4)
actions = h.get_actions()
self.assertEqual(3, len(actions))
v3 = actions[2]
self.assertEqual('xyz', v3.text)
self.assertEqual(2, v3.pos)
self.assertEqual(4, v3.to_version)
def test_get_actions__optimyze_2(self):
h = TextHistory()
h.insert('a')
h.insert('b', 0)
h.replace("abc")
actions = h.get_actions()
self.assertEqual(2, len(actions))
insert, replace = actions
self.assertIsInstance(insert, InsertAction)
self.assertIsInstance(replace, ReplaceAction)
self.assertEqual(0, insert.from_version)
self.assertEqual(2, insert.to_version)
self.assertEqual("b", insert.text)
def test_replace(self):
h = TextHistory()
self.assertEqual(1, h.replace('abc'))
self.assertEqual('abc', h.text)
self.assertEqual(1, h.version)
self.assertEqual(2, h.replace('xyz', pos=2))
self.assertEqual('abxyz', h.text)
self.assertEqual(2, h.version)
self.assertEqual(3, h.replace('X', pos=2))
self.assertEqual('abXyz', h.text)
self.assertEqual(3, h.version)
self.assertEqual(4, h.replace('END'))
self.assertEqual('abXyzEND', h.text)
self.assertEqual(4, h.version)
def test_insert_trivial(self):
h = TextHistory()
h.insert('abcd qwe')
h.replace('A', pos=0)
h.insert('gg', pos=2)
h.insert('pop', pos=7)
#pdb.set_trace()
actions = h.get_actions(1)
self.assertEqual(3, len(actions))
v1, v2, v3 = actions
self.assertEqual('A', v1.text)
self.assertEqual(0, v1.pos)
self.assertEqual(2, v1.to_version)
self.assertEqual('gg', v2.text)
self.assertEqual(2, v2.pos)
self.assertEqual(3, v2.to_version)
self.assertEqual('pop', v3.text)
self.assertEqual(7, v3.pos)
self.assertEqual(4, v3.to_version)
def test_get_actions__optimyze_1(self):
h = TextHistory()
h.insert('a')
h.insert('b')
h.delete(0, 1)
h.delete(0, 1)
h.replace("abc")
actions = h.get_actions()
self.assertEqual(3, len(actions))
insert, delete, replace = actions
self.assertIsInstance(insert, InsertAction)
self.assertIsInstance(delete, DeleteAction)
self.assertIsInstance(replace, ReplaceAction)
# insert
self.assertEqual(0, insert.from_version)
self.assertEqual(2, insert.to_version)
self.assertEqual("ab", insert.text)
#delete
self.assertEqual(2, delete.from_version)
self.assertEqual(4, delete.to_version)
self.assertEqual(2, delete.length)
def test_get_optimized_actions__merge_replace(self):
h = TextHistory()
h.insert('01234567891011')
h.replace('aaa', 6)
h.replace('LEFT', 2)
h.replace('RIGHT', 9)
self.assertEqual('01LEFTaaaRIGHT', h.text)
actions = h.get_actions(optimize=True)
self.assertEqual(2, len(actions))
insert, replace = actions
self.assertIsInstance(insert, InsertAction)
self.assertIsInstance(replace, ReplaceAction)
self.assertEqual(1, replace.from_version)
self.assertEqual(4, replace.to_version)
self.assertEqual(2, replace.pos)