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## Copyright (C) 2016 The Qt Company Ltd.
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## This file is part of the test suite of PySide2.
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from __future__ import print_function

import unittest

from PySide2.QtCore import QCoreApplication, QEventLoop, QObject, Qt, QThread, QTimer, SIGNAL

class Emitter(QThread):
    def __init__(self):
        QThread.__init__(self)

    def run(self):
        print("Before emit.")
        self.emit(SIGNAL("signal(int)"), 0)
        print("After emit.")

class Receiver(QObject):
    def __init__(self, eventloop):
        QObject.__init__(self)
        self.eventloop = eventloop

    def receive(self, number):
        print("Received number: %d" % number)
        self.eventloop.exit(0)


class TestBugPYSIDE164(unittest.TestCase):

    def testBlockingSignal(self):
        app = QCoreApplication.instance() or QCoreApplication([])
        eventloop = QEventLoop()
        emitter = Emitter()
        receiver = Receiver(eventloop)
        emitter.connect(emitter, SIGNAL("signal(int)"),
                        receiver.receive, Qt.BlockingQueuedConnection)
        emitter.start()
        retval = eventloop.exec_()
        emitter.wait(2000)
        self.assertEqual(retval, 0)

if __name__ == '__main__':
    unittest.main()