#!/usr/bin/python

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##
## Copyright (C) 2016 The Qt Company Ltd.
## Contact: https://www.qt.io/licensing/
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## This file is part of the test suite of Qt for Python.
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'''Test cases for QThread'''

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 QThread, QCoreApplication, QObject, SIGNAL, QMutex, QTimer
from PySide6.QtCore import QEventLoop

from helper.usesqcoreapplication import UsesQCoreApplication

mutex = QMutex()


class Dummy(QThread):
    '''Dummy thread'''
    def __init__(self, *args):
        super().__init__(*args)
        self.called = False

    def run(self):
        # Start-quit sequence
        self.qobj = QObject()
        mutex.lock()
        self.called = True
        mutex.unlock()


class QThreadSimpleCase(UsesQCoreApplication):

    def setUp(self):
        UsesQCoreApplication.setUp(self)
        self.called = False

    def tearDown(self):
        UsesQCoreApplication.tearDown(self)

    def testThread(self):
        # Basic QThread test
        obj = Dummy()
        obj.start()
        self.assertTrue(obj.wait(100))

        self.assertTrue(obj.called)

    def cb(self, *args):
        self.called = True
        # self.exit_app_cb()

    def abort_application(self):
        if self._thread.isRunning():
            self._thread.terminate()
        self.app.quit()

    def testSignalFinished(self):
        # QThread.finished() (signal)
        obj = Dummy()
        obj.finished.connect(self.cb)
        mutex.lock()
        obj.start()
        mutex.unlock()

        self._thread = obj
        QTimer.singleShot(1000, self.abort_application)
        self.app.exec()

        self.assertTrue(self.called)

    def testSignalStarted(self):
        # QThread.started() (signal)
        obj = Dummy()
        obj.started.connect(self.cb)
        obj.start()

        self._thread = obj
        QTimer.singleShot(1000, self.abort_application)
        self.app.exec()

        self.assertEqual(obj.qobj.thread(), obj)  # test QObject.thread() method
        self.assertTrue(self.called)


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