Github user zhijiangW commented on a diff in the pull request: https://github.com/apache/flink/pull/4559#discussion_r157694294 --- Diff: flink-runtime/src/test/java/org/apache/flink/runtime/io/network/partition/SubpartitionTestBase.java --- @@ -47,7 +48,14 @@ public void testAddAfterFinish() throws Exception { try { subpartition.finish(); + assertEquals(1, subpartition.getTotalNumberOfBuffers()); + assertEquals(0, subpartition.getBuffersInBacklog()); + assertEquals(4, subpartition.getTotalNumberOfBytes()); + assertFalse(subpartition.add(mock(Buffer.class))); + assertEquals(1, subpartition.getTotalNumberOfBuffers()); + assertEquals(0, subpartition.getBuffersInBacklog()); --- End diff -- sure
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