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#!/usr/bin/env python
"""Tests covering signal emission and receiving to python slots"""
import sys
import unittest
from PySide.QtCore import QObject, QTimer, QCoreApplication, SIGNAL, SLOT
from PySide.QtGui import QSpinBox, QPushButton, QApplication
from helper import BasicPySlotCase, UsesQApplication
class ButtonPySlot(UsesQApplication, BasicPySlotCase):
"""Tests the connection of python slots to QPushButton signals"""
qapplication = True
def setUp(self):
super(ButtonPySlot, self).setUp()
def tearDown(self):
super(ButtonPySlot, self).setUp()
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()'))
self.assert_(self.called)
def testButtonClickedWrongArgs(self):
"""Python slot connected to QPushButton.clicked() and more args"""
button = QPushButton('Mylabel')
QObject.connect(button, SIGNAL('clicked()'), self.cb)
self.args = tuple()
button.emit(SIGNAL('clicked()'), 44)
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)
class SpinBoxPySlot(UsesQApplication, BasicPySlotCase):
"""Tests the connection of python slots to QSpinBox signals"""
qapplication = True
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)'))
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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