message: Fix test
  Reviewers: davidn, jakeh
diff: @@ -275,8 +275,10 @@ class IpuIpuModelTest(test_util.TensorFlowTestCase):
  evts = tu.extract_all_events(rep)
  self.assertEqual(len(evts), 3) # begin, end, execute
  - self.assertEqual(evts[1].compile_end.compilation_report[0], 217)
  - self.assertEqual(evts[2].execute.execution_report[0], 217)
  + self.assertEqual(evts[1].compile_end.compilation_report[0],
  + bytes(bytearray([217])))
  + self.assertEqual(evts[2].execute.execution_report[0],
  + bytes(bytearray([217])))
  def testIpuEventsWithoutPoplarReporting(self):
  with ops.device("/device:IPU:0"):
  