def test_setstack(self):
'Test that a new stack can be set'
old = undo.stack()
new = undo.Stack()
undo.setstack(new)
stack = undo.stack()
assert stack is new
assert stack is not old
def test_stack(self):
'Test that ``with group()`` diverts undo.stack()'
undo.stack().clear()
_Group = undo._Group('')
stack = []
_Group._stack = stack
assert undo.stack()._receiver == undo.stack()._undos
assert undo.stack().undocount() == 0
with _Group:
assert undo.stack()._receiver == stack
assert undo.stack()._receiver == undo.stack()._undos
assert undo.stack().undocount() == 1
assert stack == []
assert undo.stack()._undos == deque([_Group])
def test_savepoint(self):
'Test that savepoint behaves correctly.'
undo.stack()._undos = deque([1, 2])
assert undo.stack().haschanged()
undo.stack().savepoint()
assert not undo.stack().haschanged()
undo.stack()._undos.pop()
assert undo.stack().haschanged()
def test_undo_resets_redos(self):
'Calling undo clears any available redos.'
undo.stack()._undos = deque([1, 2, 3])
undo.stack()._redos = deque([4, 5, 6])
undo.stack()._receiver = undo.stack()._undos
undo.stack().append(7)
assert undo.stack()._undos == deque([1, 2, 3, 7])
assert undo.stack()._redos == deque([])
def test_group_multiple_undo(self):
'Test that calling undo after a group undoes all actions.'
@undo.undoable
def add(seq, v):
seq.append(v)
yield 'add'
seq.pop()
l = []
with undo.group('desc'):
for i in range(3):
add(l, i)
assert l == [0, 1, 2], l
assert undo.stack().undocount() == 1
undo.stack().undo()
assert undo.stack().undocount() == 0
assert l == [], l
def test_undo_changes_stacks(self):
'Calling undo updates both the undos and redos stacks.'
undo.stack()._undos = deque([1, 2, self.action])
undo.stack()._redos = deque([4, 5, 6])
undo.stack().undo()
assert undo.stack()._undos == deque([1, 2])
assert undo.stack()._redos == deque([4, 5, 6, self.action])
import sys
from PyQt4 import QtCore, QtGui, uic
import PyQt4
import charOps as co
import dataFiles
import random
import numpy as np
import pyqtgraph as pg
import bbc
import json
import bbcode
import actionNodes as nodes
from datetime import datetime
import undo
stack = undo.stack()
#define color vars
colorStat = dataFiles.PrintColors['stats']
colorName = dataFiles.PrintColors['names']
colorWarn = dataFiles.PrintColors['warn']
colorGood = dataFiles.PrintColors['good']
def showOutput(text):
window.outbox.setText(text)
window.fancyOutbox.setText(bbcode.render_html(text))
dataFiles.reloadFiles()
def test_init_stack(self):
'Test that a new stack is created'
undo._stack = None
stack = undo.stack()
assert stack is undo._stack
assert isinstance(stack, undo.Stack)
def test_savepoint_clear(self):
'Check that clearing the stack resets the savepoint.'
undo.stack()._undos = deque()
assert undo.stack().haschanged()
undo.stack().savepoint()
assert not undo.stack().haschanged()
undo.stack().clear()
assert undo.stack().haschanged()
undo.stack().savepoint()
assert not undo.stack().haschanged()
undo.stack().clear()
assert undo.stack().haschanged()
def test_receiver(self):
'Test that setreceiver and resetreceiver behave correctly.'
stack = []
undo.stack()._undos = []
undo.stack().setreceiver(stack)
undo.stack().append('item')
assert stack == ['item']
assert undo.stack()._undos == []
undo.stack().resetreceiver()
undo.stack().append('next item')
assert stack == ['item']
assert undo.stack()._undos == ['next item']
def test_redotext(self):
'undo.stack().redotext() returns a description of the redo available.'
undo.stack()._redos = [self.action]
assert undo.stack().redotext() == 'Redo blah'
def test_append(self):
'undo.stack().append adds actions to the undo queue.'
undo.stack().append('one')
assert undo.stack()._undos == deque(['one'])
def test_singleton(self):
'undo.stack() always returns the same object'
assert undo.stack() is undo.stack()