fix decoders' unittest

infer.py

@@ -63,7 +63,7 @@ parser.add_argument(
     help="Manifest path for decoding. (default: %(default)s)")
 parser.add_argument(
     "--model_filepath",
-    default='checkpoints/params.tar.gz.41',
+    default='checkpoints/params.latest.tar.gz',
     type=str,
     help="Model filepath. (default: %(default)s)")
 parser.add_argument(

tests/test_decoders.py

@@ -81,7 +81,8 @@ class TestDecoders(unittest.TestCase):
             probs_split=[self.probs_seq1, self.probs_seq2],
             beam_size=self.beam_size,
             vocabulary=self.vocab_list,
-            blank_id=len(self.vocab_list))
+            blank_id=len(self.vocab_list),
+            num_processes=24)
         self.assertEqual(beam_results[0][0][1], self.beam_search_result[0])
         self.assertEqual(beam_results[1][0][1], self.beam_search_result[1])