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'''Test cases for QDnsLookup'''

import unittest

from PySide2.QtCore import QCoreApplication
from PySide2.QtNetwork import QDnsLookup

class DnsLookupTestCase(unittest.TestCase):
    '''Test case for QDnsLookup'''

    def setUp(self):
        self._app = QCoreApplication([])
        self._lookup = QDnsLookup(QDnsLookup.ANY, 'www.qt.io')
        self._lookup.finished.connect(self._finished)

    def tearDown(self):
        del self._lookup

    def _finished(self):
        if self._lookup.error() == QDnsLookup.NoError:
            nameRecords = self._lookup.canonicalNameRecords()
            if nameRecords:
                print(nameRecords[0].name())
        self._app.quit()

    def testLookup(self):
        self._lookup.lookup()
        self._app.exec_()

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