message: TF Eager profiler_test added test to validate error case
diff: @@ -33,11 +33,16 @@ class ProfilerTest(test_util.TensorFlowTestCase):
  five = constant_op.constant(5)
  product = three * five
  self.assertAllEqual(15, product)
  + with self.assertRaises(AssertionError):
  + profiler.start()
  +
  profile_result = profiler.stop()
  profile_pb = trace_events_pb2.Trace()
  profile_pb.ParseFromString(profile_result)
  profile_pb_str = '%s' % profile_pb
  self.assertTrue('Mul' in profile_pb_str)
  + with self.assertRaises(AssertionError):
  + profiler.stop()
  if __name__ == '__main__':
  