Github user NicoK commented on a diff in the pull request: https://github.com/apache/flink/pull/4533#discussion_r153448085 --- Diff: flink-runtime/src/test/java/org/apache/flink/runtime/io/network/netty/NettyMessageSerializationTest.java --- @@ -158,6 +158,15 @@ public void testEncodeDecode() { assertEquals(expected.getClass(), actual.getClass()); } + + { + NettyMessage.AddCredit expected = new NettyMessage.AddCredit(new ResultPartitionID(new IntermediateResultPartitionID(), new ExecutionAttemptID()), random.nextInt(), new InputChannelID()); --- End diff -- adapt if we only allow positive credits (see comment above)
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