Github user tzulitai commented on a diff in the pull request:
https://github.com/apache/flink/pull/3278#discussion_r100035474
--- Diff:
flink-connectors/flink-connector-kafka-base/src/test/java/org/apache/flink/streaming/connectors/kafka/FlinkKafkaProducerBaseTest.java
---
@@ -293,6 +293,61 @@ public void run() {
testHarness.close();
}
+ /**
+ * This test is meant to assure that testAtLeastOnceProducer is valid
by testing that if flushing is disabled,
+ * the snapshot method does indeed finishes without waiting for pending
records;
+ * we set a timeout because the test will not finish if the logic is
broken
+ */
+ @Test(timeout=5000)
+ public void testDoesNotWaitForPendingRecordsIfFlushingDisabled() throws
Throwable {
+ final OneShotLatch inputLatch = new OneShotLatch();
+
+ final DummyFlinkKafkaProducer<String> producer = new
DummyFlinkKafkaProducer<>(
+ FakeStandardProducerConfig.get(), null, inputLatch,
100, new AtomicBoolean(false));
+ producer.setFlushOnCheckpoint(false);
+
+ final OneInputStreamOperatorTestHarness<String, Object>
testHarness =
+ new OneInputStreamOperatorTestHarness<>(new
StreamSink(producer));
+
+ testHarness.open();
+
+ List<Callback> pending =
producer.getProducerInstance().getPending();
+
+ for (int i = 0; i < 100; i++) {
+ testHarness.processElement(new StreamRecord<>("msg-" +
i));
+ }
--- End diff --
1 is enough, will change this.
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