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#!/usr/bin/env python
"""Tests covering signal emission and receiving to python slots"""
import unittest
from PySide.QtCore import QObject, SIGNAL, SLOT
try:
from PySide.QtGui import QSpinBox, QPushButton
hasQtGui = True
except ImportError:
hasQtGui = False
from helper import BasicPySlotCase, UsesQApplication
if hasQtGui:
class ButtonPySlot(UsesQApplication, BasicPySlotCase):
"""Tests the connection of python slots to QPushButton signals"""
def testButtonClicked(self):
"""Connection of a python slot to QPushButton.clicked()"""
button = QPushButton('Mylabel')
QObject.connect(button, SIGNAL('clicked()'), self.cb)
self.args = tuple()
button.emit(SIGNAL('clicked(bool)'), False)
self.assert_(self.called)
def testButtonClick(self):
"""Indirect qt signal emission using the QPushButton.click() method """
button = QPushButton('label')
QObject.connect(button, SIGNAL('clicked()'), self.cb)
self.args = tuple()
button.click()
self.assert_(self.called)
if hasQtGui:
class SpinBoxPySlot(UsesQApplication, BasicPySlotCase):
"""Tests the connection of python slots to QSpinBox signals"""
def setUp(self):
super(SpinBoxPySlot, self).setUp()
self.spin = QSpinBox()
def tearDown(self):
del self.spin
super(SpinBoxPySlot, self).tearDown()
def testSpinBoxValueChanged(self):
"""Connection of a python slot to QSpinBox.valueChanged(int)"""
QObject.connect(self.spin, SIGNAL('valueChanged(int)'), self.cb)
self.args = [3]
self.spin.emit(SIGNAL('valueChanged(int)'), *self.args)
self.assert_(self.called)
def testSpinBoxValueChangedImplicit(self):
"""Indirect qt signal emission using QSpinBox.setValue(int)"""
QObject.connect(self.spin, SIGNAL('valueChanged(int)'), self.cb)
self.args = [42]
self.spin.setValue(self.args[0])
self.assert_(self.called)
def atestSpinBoxValueChangedFewArgs(self):
"""Emission of signals with fewer arguments than needed"""
# XXX: PyQt4 crashes on the assertRaises
QObject.connect(self.spin, SIGNAL('valueChanged(int)'), self.cb)
self.args = (554,)
self.assertRaises(TypeError, self.spin.emit, SIGNAL('valueChanged(int)'))
if hasQtGui:
class QSpinBoxQtSlots(UsesQApplication):
"""Tests the connection to QSpinBox qt slots"""
qapplication = True
def testSetValueIndirect(self):
"""Indirect signal emission: QSpinBox using valueChanged(int)/setValue(int)"""
spinSend = QSpinBox()
spinRec = QSpinBox()
spinRec.setValue(5)
QObject.connect(spinSend, SIGNAL('valueChanged(int)'), spinRec, SLOT('setValue(int)'))
self.assertEqual(spinRec.value(), 5)
spinSend.setValue(3)
self.assertEqual(spinRec.value(), 3)
self.assertEqual(spinSend.value(), 3)
def testSetValue(self):
"""Direct signal emission: QSpinBox using valueChanged(int)/setValue(int)"""
spinSend = QSpinBox()
spinRec = QSpinBox()
spinRec.setValue(5)
spinSend.setValue(42)
QObject.connect(spinSend, SIGNAL('valueChanged(int)'), spinRec, SLOT('setValue(int)'))
self.assertEqual(spinRec.value(), 5)
self.assertEqual(spinSend.value(), 42)
spinSend.emit(SIGNAL('valueChanged(int)'), 3)
self.assertEqual(spinRec.value(), 3)
#Direct emission shouldn't change the value of the emitter
self.assertEqual(spinSend.value(), 42)
spinSend.emit(SIGNAL('valueChanged(int)'), 66)
self.assertEqual(spinRec.value(), 66)
self.assertEqual(spinSend.value(), 42)
if __name__ == '__main__':
unittest.main()
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