class HttpSignalsCase(unittest.TestCase):
'''Test case for bug #124 - readDatagram signature
QUdpSocket.readDatagram must return a tuple with the datagram, host and
port, while receiving only the max payload size.'''
def setUp(self):
#Acquire resources
self.called = False
self.app = QCoreApplication([])
self.socket = QUdpSocket()
self.server = QUdpSocket()
self.server.bind(QHostAddress(QHostAddress.LocalHost), 45454)
def tearDown(self):
#Release resources
del self.socket
del self.server
del self.app
def sendPackage(self):
addr = QHostAddress(QHostAddress.LocalHost)
self.socket.writeDatagram('datagram', addr, 45454)
def callback(self):
while self.server.hasPendingDatagrams():
datagram, host, port = self.server.readDatagram(
self.server.pendingDatagramSize())
self.called = True
self.app.quit()
def testDefaultArgs(self):
#QUdpSocket.readDatagram pythonic return
# @bug 124
QObject.connect(self.server, SIGNAL('readyRead()'), self.callback)
self.sendPackage()
self.app.exec_()
self.assertTrue(self.called)
class HttpSignalsCase(unittest.TestCase):
'''Test case for bug #124 - readDatagram signature
QUdpSocket.readDatagram must return a tuple with the datagram, host and
port, while receiving only the max payload size.'''
def setUp(self):
#Acquire resources
self.called = False
self.app = QCoreApplication([])
self.socket = QUdpSocket()
self.server = QUdpSocket()
self.server.bind(QHostAddress(QHostAddress.LocalHost), 45454)
def tearDown(self):
#Release resources
del self.socket
del self.server
del self.app
def sendPackage(self):
addr = QHostAddress(QHostAddress.LocalHost)
self.socket.writeDatagram('datagram', addr, 45454)
def callback(self):
while self.server.hasPendingDatagrams():
datagram, host, port = self.server.readDatagram(self.server.pendingDatagramSize())
self.called = True
self.app.quit()
def testDefaultArgs(self):
#QUdpSocket.readDatagram pythonic return
# @bug 124
QObject.connect(self.server, SIGNAL('readyRead()'), self.callback)
self.sendPackage()
self.app.exec_()
self.assert_(self.called)
class Example(QWidget):
def get_field(self, data, offset, size):
index = 0
field = ''
while (index < size):
field += data[offset + index]
index += 1
return field
def __init__(self):
super().__init__()
self.layout = QVBoxLayout()
self.initUI()
self.udpSocket = QUdpSocket()
self.udpSocket.bind(QHostAddress('127.0.0.1'), 7111)
self.udpSocket.readyRead.connect(self.readPendingDatagrams)
def initUI(self):
''' Initialize the User Interface '''
self.setGeometry(300, 300, 300, 220)
self.setWindowTitle('Test App')
self.addButtons()
self.setLayout(self.layout)
self.show()
def addButtons(self):
self.layout.addWidget(
QLabel('<H1><font color="red">Hello PyQt5</font></H1>'))
buttonList = []
numbers = ('one', 'two', 'three', 'four')
for i in range(4):
button = QPushButton(numbers[i])
self.layout.addWidget(button)
buttonList.insert(i, button)
buttonList[i].clicked.connect(self.buttonClick)
#self.layout.addWidget(QPushButton('Button ' + str(i)))
self.line = QLineEdit()
self.layout.addWidget(self.line)
self.label = QLabel()
self.layout.addWidget(self.label)
self.line.textChanged.connect(self.label.setText)
def buttonClick(self):
button = self.sender()
if isinstance(button, QPushButton):
text = f'Button {button.text()}'
print('button click event from ' + button.text())
self.line.setText('')
#datagram = QNetworkDatagram(bytes(text, 'utf-8'), QHostAddress.LocalHost, 45454)
#self.udpSocket.writeDatagram(datagram)
datagram = QByteArray(bytes(text, 'utf-8'))
self.udpSocket.writeDatagram(datagram, QHostAddress('127.0.0.1'),
6010)
def readPendingDatagrams(self):
while self.udpSocket.hasPendingDatagrams():
# datagram = QByteArray()
# datagram.resize(self.udpSocket.pendingDatagramSize())
(datagram, sender, senderPort) = self.udpSocket.readDatagram(1024)
print(f'{sender.toString()}:{senderPort}')
self.processDatagram(datagram)
def processDatagram(self, datagram):
pkt = list(datagram)
# print(pkt)
for i in range(0, len(pkt)):
hex_val = hex(int.from_bytes(pkt[i], byteorder='big'))[2:]
hex_val = hex_val.rjust(2, '0')
# pkt[i] = str(hex_val)
pkt[i] = chr(int(hex_val, 16))
print(pkt)
# msg_id = int(self.get_field(pkt, 14, 4), 16)
# print(f'Message: {msg_id}')
def closeEvent(self, event):
pass