File: test_request.py

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from mpi4py import MPI
import mpiunittest as unittest


class TestRequest(unittest.TestCase):

    def setUp(self):
        self.REQUEST = MPI.Request()
        self.STATUS  = MPI.Status()

    def testWait(self):
        self.REQUEST.Wait()
        self.REQUEST.Wait(None)
        self.REQUEST.Wait(self.STATUS)
        self.assertIs(self.REQUEST.Wait(), True)
        self.REQUEST.wait()
        self.REQUEST.wait(None)
        self.REQUEST.wait(self.STATUS)
        self.assertIsNone(self.REQUEST.wait())

    def testTest(self):
        self.REQUEST.Test()
        self.REQUEST.Test(None)
        self.REQUEST.Test(self.STATUS)
        self.assertIs(self.REQUEST.Test(), True)
        self.REQUEST.test()
        self.REQUEST.test(None)
        self.REQUEST.test(self.STATUS)
        self.assertEqual(self.REQUEST.test(), (True, None))

    @unittest.skipMPI('MPICH1')
    @unittest.skipMPI('LAM/MPI')
    def testGetStatus(self):
        try:
            flag = self.REQUEST.Get_status()
        except NotImplementedError:
            self.skipTest('mpi-request-get_status')
        self.assertTrue(flag)
        flag = self.REQUEST.Get_status(self.STATUS)
        self.assertTrue(flag)
        self.assertEqual(self.STATUS.Get_source(), MPI.ANY_SOURCE)
        self.assertEqual(self.STATUS.Get_tag(),    MPI.ANY_TAG)
        self.assertEqual(self.STATUS.Get_error(),  MPI.SUCCESS)
        self.assertEqual(self.STATUS.Get_count(MPI.BYTE),    0)
        self.assertEqual(self.STATUS.Get_elements(MPI.BYTE), 0)
        try:
            self.assertFalse(self.STATUS.Is_cancelled())
        except NotImplementedError:
            self.skipTest('mpi-status-is_cancelled')
        flag = self.REQUEST.get_status()
        self.assertTrue(flag)
        flag = self.REQUEST.get_status(self.STATUS)
        self.assertEqual(self.STATUS.source, MPI.ANY_SOURCE)
        self.assertEqual(self.STATUS.tag,    MPI.ANY_TAG)
        self.assertEqual(self.STATUS.error,  MPI.SUCCESS)


class TestRequestArray(unittest.TestCase):

    def setUp(self):
        self.REQUESTS = [MPI.Request() for i in range(5)]
        self.STATUSES = [MPI.Status()  for i in range(5)]
        self.STATUS = self.STATUSES[0]
        for status in self.STATUSES:
            status.source = 0
            status.tag = 0
            status.error = MPI.ERR_OTHER

    def testWaitany(self):
        MPI.Request.Waitany(self.REQUESTS)
        MPI.Request.Waitany(self.REQUESTS, None)
        MPI.Request.Waitany(self.REQUESTS, self.STATUSES[0])
        MPI.Request.waitany(self.REQUESTS)
        MPI.Request.waitany(self.REQUESTS, None)
        MPI.Request.waitany(self.REQUESTS, self.STATUSES[0])

    def testTestany(self):
        MPI.Request.Testany(self.REQUESTS)
        MPI.Request.Testany(self.REQUESTS, None)
        MPI.Request.Testany(self.REQUESTS, self.STATUSES[0])
        MPI.Request.testany(self.REQUESTS)
        MPI.Request.testany(self.REQUESTS, None)
        MPI.Request.testany(self.REQUESTS, self.STATUSES[0])

    def testGetStatusAny(self):
        with self.catchNotImplementedError(4, 1):
            status = self.STATUS
            index, flag = MPI.Request.Get_status_any(self.REQUESTS)
            self.assertEqual(index, MPI.UNDEFINED)
            self.assertTrue(flag)
            index, flag = MPI.Request.Get_status_any(self.REQUESTS, None)
            self.assertEqual(index, MPI.UNDEFINED)
            self.assertTrue(flag)
            if unittest.is_mpi('impi(==2021.14.0)'): status.error = MPI.SUCCESS
            if unittest.is_mpi('impi(==2021.14.1)'): status.error = MPI.SUCCESS
            index, flag = MPI.Request.Get_status_any(self.REQUESTS, status)
            self.assertEqual(index, MPI.UNDEFINED)
            self.assertTrue(flag)
            self.assertEqual(status.source, MPI.ANY_SOURCE)
            self.assertEqual(status.tag, MPI.ANY_TAG)
            self.assertEqual(status.error, MPI.SUCCESS)
        with self.catchNotImplementedError(4, 1):
            index, flag = MPI.Request.get_status_any(self.REQUESTS)
            self.assertEqual(index, MPI.UNDEFINED)
            self.assertTrue(flag)

    def testWaitall(self):
        MPI.Request.Waitall(self.REQUESTS)
        MPI.Request.Waitall(self.REQUESTS, None)
        self.assertIs(MPI.Request.Waitall(self.REQUESTS), True)
        for statuses in (tuple(self.STATUSES), (self.STATUSES[0],), ()):
            MPI.Request.Waitall(self.REQUESTS, statuses)
        for statuses in (self.STATUSES, []):
            MPI.Request.Waitall(self.REQUESTS, statuses)
            self.assertEqual(len(statuses), len(self.REQUESTS))
        MPI.Request.waitall(self.REQUESTS)
        MPI.Request.waitall(self.REQUESTS, None)
        for statuses in (self.STATUSES, []):
            MPI.Request.waitall(self.REQUESTS, statuses)
            self.assertEqual(len(statuses), len(self.REQUESTS))

    def testTestall(self):
        MPI.Request.Testall(self.REQUESTS)
        MPI.Request.Testall(self.REQUESTS, None)
        self.assertIs(MPI.Request.Testall(self.REQUESTS), True)
        for statuses in (self.STATUSES, []):
            MPI.Request.Testall(self.REQUESTS, statuses)
            self.assertEqual(len(statuses), len(self.REQUESTS))
        MPI.Request.testall(self.REQUESTS)
        MPI.Request.testall(self.REQUESTS, None)
        for statuses in (self.STATUSES, []):
            MPI.Request.testall(self.REQUESTS, statuses)
            self.assertEqual(len(statuses), len(self.REQUESTS))

    def testGetStatusAll(self):
        with self.catchNotImplementedError(4, 1):
            statuses = self.STATUSES
            flag = MPI.Request.Get_status_all(self.REQUESTS)
            self.assertTrue(flag)
            flag = MPI.Request.Get_status_all(self.REQUESTS, None)
            self.assertTrue(flag)
            flag = MPI.Request.Get_status_all(self.REQUESTS, statuses)
            self.assertTrue(flag)
            for status in statuses:
                self.assertEqual(status.source, MPI.ANY_SOURCE)
                self.assertEqual(status.tag, MPI.ANY_TAG)
                self.assertEqual(status.error, MPI.SUCCESS)
        with self.catchNotImplementedError(4, 1):
            flag = MPI.Request.get_status_all(self.REQUESTS)
            self.assertTrue(flag)

    def testWaitsome(self):
        ret = MPI.Request.Waitsome(self.REQUESTS)
        self.assertIsNone(ret)
        ret = MPI.Request.Waitsome(self.REQUESTS, None)
        self.assertIsNone(ret)
        for statuses in (self.STATUSES, []):
            slen = len(statuses)
            ret = MPI.Request.Waitsome(self.REQUESTS, statuses)
            self.assertIsNone(ret)
            self.assertEqual(len(statuses), slen)

    def testTestsome(self):
        ret = MPI.Request.Testsome(self.REQUESTS)
        self.assertIsNone(ret)
        ret = MPI.Request.Testsome(self.REQUESTS, None)
        self.assertIsNone(ret)
        for statuses in (self.STATUSES, []):
            slen = len(statuses)
            ret = MPI.Request.Testsome(self.REQUESTS, statuses)
            self.assertIsNone(ret)
            self.assertEqual(len(statuses), slen)

    def testGetStatusSome(self):
        with self.catchNotImplementedError(4, 1):
            statuses = self.STATUSES
            indices = MPI.Request.Get_status_some(self.REQUESTS)
            self.assertIsNone(indices)
            indices = MPI.Request.Get_status_some(self.REQUESTS, None)
            self.assertIsNone(indices)
            indices = MPI.Request.Get_status_some(self.REQUESTS, statuses)
            self.assertIsNone(indices)
        with self.catchNotImplementedError(4, 1):
            indices = MPI.Request.get_status_some(self.REQUESTS)
            self.assertIsNone(indices)


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