def testRevokedListener(self):
self.listener.Revoke()
with UsdQt.UndoBlock():
self.stage.DefinePrim('/World')
with UsdQt.UndoBlock():
self.stage.DefinePrim('/World/Child')
self.assertEqual(self.localUndoStack, [])
def testEmptyUndoBlock(self):
with UsdQt.UndoBlock():
pass
self.assertEqual(self.localUndoStack, [])
with UsdQt.UndoBlock():
with UsdQt.UndoBlock():
with UsdQt.UndoBlock():
pass
self.assertEqual(self.localUndoStack, [])
def testMidEditBlockInversion(self):
self.stage.DefinePrim('/World')
with UsdQt.UndoBlock():
with self.assertRaisesRegexp(
Tf.ErrorException, 'Inversion during \
open edit block may result in corrupted undo stack.'):
self.localUndoStack[-1].Invert()
def testExpiredStage(self):
with UsdQt.UndoBlock():
self.stage.DefinePrim('/World')
self.stage = None
with self.assertRaises(Tf.ErrorException):
self.localUndoStack[-1].Invert()
def testNestedUndoBlock(self):
with UsdQt.UndoBlock():
prim = self.stage.DefinePrim('/World')
self.assertTrue(bool(prim))
with UsdQt.UndoBlock():
prim.SetActive(False)
with UsdQt.UndoBlock():
prim.SetActive(True)
with UsdQt.UndoBlock():
prim.SetActive(False)
self.assertFalse(prim.IsActive())
self.assertEqual(len(self.localUndoStack), 2)
with UsdQt.UndoBlock():
prim.SetActive(False)
with UsdQt.UndoBlock():
prim.SetActive(True)
self.assertTrue(prim.IsActive())
self.assertEqual(len(self.localUndoStack), 3)
self.localUndoStack[-1].Invert() # undo
self.assertFalse(prim.IsActive())
self.localUndoStack[-1].Invert() # redo
self.assertTrue(prim.IsActive())
self.localUndoStack[-1].Invert() # undo
self.assertFalse(prim.IsActive())
self.localUndoStack[-2].Invert() # undo
self.assertTrue(prim.IsActive())
self.localUndoStack[-3].Invert() # undo
self.assertFalse(bool(prim))
self.localUndoStack[-3].Invert() # redo
prim = self.stage.GetPrimAtPath('/World')
self.assertTrue(bool(prim))
self.assertTrue(prim.IsActive())
self.assertEqual(len(self.localUndoStack), 3)