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#!/usr/bin/python
# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
import os
import sys
import unittest
from pathlib import Path
sys.path.append(os.fspath(Path(__file__).resolve().parents[1]))
from init_paths import init_test_paths
init_test_paths(False)
from PySide6.QtCore import (QCoreApplication, QObject, QParallelAnimationGroup,
QTimer, SIGNAL)
from PySide6.QtStateMachine import (QEventTransition, QFinalState, QState,
QStateMachine, QSignalTransition)
def addStates(transition):
sx = QState()
sy = QState()
transition.setTargetStates([sx, sy])
def addAnimation(transition):
animation = QParallelAnimationGroup()
transition.addAnimation(animation)
class QAbstractTransitionTest(unittest.TestCase):
def testBasic(self):
app = QCoreApplication([])
o = QObject()
o.setProperty("text", "INdT")
machine = QStateMachine()
s1 = QState()
s1.assignProperty(o, "text", "Rocks")
s2 = QFinalState()
t = s1.addTransition(o, SIGNAL("change()"), s2)
self.assertEqual(t.targetStates(), [s2])
addStates(t)
self.assertEqual(len(t.targetStates()), 2)
animation = QParallelAnimationGroup()
t.addAnimation(animation)
self.assertEqual(t.animations(), [animation])
addAnimation(t)
self.assertEqual(t.animations()[0].parent(), None)
machine.addState(s1)
machine.addState(s2)
machine.setInitialState(s1)
machine.start()
QTimer.singleShot(100, app.quit)
app.exec()
@unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
def testRefCountOfTargetState(self):
transition = QEventTransition()
state1 = QState()
refcount1 = sys.getrefcount(state1)
transition.setTargetState(state1)
self.assertEqual(transition.targetState(), state1)
self.assertEqual(sys.getrefcount(transition.targetState()), refcount1 + 1)
state2 = QState()
refcount2 = sys.getrefcount(state2)
transition.setTargetState(state2)
self.assertEqual(transition.targetState(), state2)
self.assertEqual(sys.getrefcount(transition.targetState()), refcount2 + 1)
self.assertEqual(sys.getrefcount(state1), refcount1)
del transition
self.assertEqual(sys.getrefcount(state2), refcount2)
@unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
def testRefCountOfTargetStates(self):
transition = QEventTransition()
state1 = QState()
state2 = QState()
states = [state1, state2]
refcount1 = sys.getrefcount(state1)
refcount2 = sys.getrefcount(state2)
transition.setTargetStates(states)
self.assertEqual(transition.targetStates(), states)
self.assertEqual(transition.targetState(), state1)
self.assertEqual(sys.getrefcount(transition.targetStates()[0]), refcount1 + 1)
self.assertEqual(sys.getrefcount(transition.targetStates()[1]), refcount2 + 1)
del states
del transition
self.assertEqual(sys.getrefcount(state1), refcount1 - 1)
self.assertEqual(sys.getrefcount(state2), refcount2 - 1)
@unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
def testRefCountOfTargetStatesAfterSingleTargetState(self):
transition = QEventTransition()
state0 = QState()
refcount0 = sys.getrefcount(state0)
transition.setTargetState(state0)
self.assertEqual(transition.targetState(), state0)
self.assertEqual(sys.getrefcount(transition.targetState()), refcount0 + 1)
state1 = QState()
state2 = QState()
states = [state1, state2]
refcount1 = sys.getrefcount(state1)
refcount2 = sys.getrefcount(state2)
transition.setTargetStates(states)
self.assertEqual(sys.getrefcount(state0), refcount0)
self.assertEqual(transition.targetStates(), states)
self.assertEqual(transition.targetState(), state1)
self.assertEqual(sys.getrefcount(transition.targetStates()[0]), refcount1 + 1)
self.assertEqual(sys.getrefcount(transition.targetStates()[1]), refcount2 + 1)
del states
del transition
self.assertEqual(sys.getrefcount(state1), refcount1 - 1)
self.assertEqual(sys.getrefcount(state2), refcount2 - 1)
@unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
def testRefCountOfTargetStatesBeforeSingleTargetState(self):
transition = QEventTransition()
state1 = QState()
state2 = QState()
states = [state1, state2]
refcount1 = sys.getrefcount(state1)
refcount2 = sys.getrefcount(state2)
transition.setTargetStates(states)
self.assertEqual(transition.targetStates(), states)
self.assertEqual(transition.targetState(), state1)
self.assertEqual(sys.getrefcount(transition.targetStates()[0]), refcount1 + 1)
self.assertEqual(sys.getrefcount(transition.targetStates()[1]), refcount2 + 1)
state3 = QState()
refcount3 = sys.getrefcount(state3)
transition.setTargetState(state3)
self.assertEqual(transition.targetState(), state3)
self.assertEqual(sys.getrefcount(transition.targetState()), refcount3 + 1)
del states
self.assertEqual(sys.getrefcount(state1), refcount1 - 1)
self.assertEqual(sys.getrefcount(state2), refcount2 - 1)
if __name__ == '__main__':
unittest.main()
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