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from mpi4py import MPI
import mpiunittest as unittest
class GReqCtx(object):
source = 1
tag = 7
completed = False
free_called = False
def query(self, status):
status.Set_source(self.source)
status.Set_tag(self.tag)
def free(self):
self.free_called = True
def cancel(self, completed):
if completed is not self.completed:
raise MPI.Exception(MPI.ERR_PENDING)
class TestGrequest(unittest.TestCase):
def testAll(self):
ctx = GReqCtx()
greq = MPI.Grequest.Start(ctx.query, ctx.free, ctx.cancel)
self.assertFalse(greq.Test())
self.assertFalse(ctx.free_called)
greq.Cancel()
greq.Complete()
ctx.completed = True
greq.Cancel()
status = MPI.Status()
self.assertTrue(greq.Test(status))
self.assertEqual(status.Get_source(), ctx.source)
self.assertEqual(status.Get_tag(), ctx.tag)
greq.Wait()
self.assertTrue(ctx.free_called)
if MPI.Get_version() < (2, 0):
del GReqCtx
del TestGrequest
if __name__ == '__main__':
unittest.main()
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