Github user NicoK commented on a diff in the pull request:
https://github.com/apache/flink/pull/4552#discussion_r161568012
--- Diff:
flink-runtime/src/test/java/org/apache/flink/runtime/io/network/partition/PipelinedSubpartitionTest.java
---
@@ -119,6 +119,7 @@ public void testBasicPipelinedProduceConsumeLogic()
throws Exception {
verify(listener, times(1)).notifyBuffersAvailable(eq(1L));
// ...and one available result
+ assertFalse(view.nextBufferIsEvent());
--- End diff --
we should test this everywhere we access `getNextBuffer()` or add buffers
via `add()` - also if `getNextBuffer()` is `null` or before even requesting
anything
---
