def test_redo(self):
example = SimpleExample(list_value=['foo', 'bar'])
undo_item = ListUndoItem(
object=example,
name='list_value',
index=1,
added=['wombat', 'baz'],
removed=['bar'],
)
with self.assertTraitChanges(example, 'list_value_items', count=1):
undo_item.redo()
self.assertEqual(example.list_value, ['foo', 'wombat', 'baz'])
def test_merge_equal(self):
example = SimpleExample(list_value=['foo', 'wombat', 'baz'])
removed = [['bar']]
undo_item = ListUndoItem(object=example,
name='list_value',
index=1,
added=[['wombat'], 'baz'],
removed=removed.copy())
next_undo_item = ListUndoItem(
object=example,
name='list_value',
index=1,
added=[['wombat'], 'baz'],
removed=removed.copy(),
)
result = undo_item.merge(next_undo_item)
self.assertFalse(result)
def test_merge_different_index(self):
example = SimpleExample()
added = [['wombat'], 'baz']
removed = [['bar']]
undo_item = ListUndoItem(
object=example,
name='list_value',
index=1,
added=added.copy(),
removed=removed.copy(),
)
next_undo_item = ListUndoItem(
object=example,
name='any_value',
index=0,
added=added.copy(),
removed=removed.copy(),
)
result = undo_item.merge(next_undo_item)
self.assertFalse(result)
def test_merge_different_undo_item_type(self):
example_1 = SimpleExample()
example_2 = SimpleExample()
undo_item = UndoItem(
object=example_1,
name='any_value',
)
next_undo_item = ListUndoItem(
object=example_2,
name='any_value',
)
result = undo_item.merge(next_undo_item)
self.assertFalse(result)