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''' unit test for BUG #1313 '''

import os
import sys
import unittest

sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
from init_paths import init_test_paths
init_test_paths(False)

from PySide2 import QtCore
import py3kcompat as py3k


class MyQObject(QtCore.QObject):
    sig = QtCore.Signal()


demo_coroutine_definition_code = """
async def demo_coroutine():
    my_qobject = MyQObject()
    my_qobject.sig.connect(lambda: None)
"""


if py3k.IS_PY3K:
    exec(demo_coroutine_definition_code)


@unittest.skipIf(not py3k.IS_PY3K, "Requires Python 3 due to use of async def")
class CoroutineRaisesStopIterationTestCase(unittest.TestCase):
    def setUp(self):
        self.coroutine = demo_coroutine()

    def testCoroutine(self):
        with self.assertRaises(StopIteration):
            self.coroutine.send(None)


def demo_generator():
    my_qobject = MyQObject()
    my_qobject.sig.connect(lambda: None)
    return
    yield # to make it a generator


class GeneratorRaisesStopIterationTestCase(unittest.TestCase):
    def setUp(self):
        self.generator = demo_generator()

    def testGenerator(self):
        with self.assertRaises(StopIteration):
            self.generator.send(None)


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