Github user NicoK commented on a diff in the pull request:
https://github.com/apache/flink/pull/4533#discussion_r153454649
--- Diff:
flink-runtime/src/test/java/org/apache/flink/runtime/io/network/netty/PartitionRequestClientHandlerTest.java
---
@@ -208,8 +244,79 @@ public void testCancelBeforeActive() throws Exception {
client.cancelRequestFor(inputChannel.getInputChannelId());
}
+ /**
+ * Verifies that {@link RemoteInputChannel} is enqueued in the
pipeline, and
+ * {@link AddCredit} message is sent to the producer.
+ */
+ @Test
+ public void testNotifyCreditAvailable() throws Exception {
+ final CreditBasedClientHandler handler = new
CreditBasedClientHandler();
+ final EmbeddedChannel channel = new EmbeddedChannel(handler);
+
+ final RemoteInputChannel inputChannel =
createRemoteInputChannel(mock(SingleInputGate.class));
+
+ // Enqueue the input channel
+ handler.notifyCreditAvailable(inputChannel);
--- End diff --
adapt if only positive credit is allowed (need some credit here)
---
