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https://issues.apache.org/jira/browse/KAFKA-3956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15373134#comment-15373134
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Gavin Manning commented on KAFKA-3956:
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{{monospaced}}
{noformat}
@Test
public void testErrorNextAfterSend() {
final MockProducer<String, byte[]> mockProducer = new
MockProducer<>(false, new StringSerializer(), new ByteArraySerializer());
byte[] bytes = new byte[10];
final ProducerRecord<String, byte[]> record = new
ProducerRecord<>("topic", "key", bytes);
Assert.assertTrue(mockProducer.history().isEmpty());
mockProducer.send(record);
// History should be empty ... but isn't
Assert.assertTrue(mockProducer.history().isEmpty());
// Cause the next operation to fail
Assert.assertTrue(mockProducer.errorNext(new RuntimeException("Force an
error")));
System.out.println("Mock producer contains " +
mockProducer.history().size() + " message(s)");
// We're too late ... the message has already been "sent"
Assert.assertTrue(mockProducer.history().isEmpty());
}
{noformat}
{{monospaced}}
> MockProducer.send() sends a message before completeNext() or errorNext() are
> called
> -----------------------------------------------------------------------------------
>
> Key: KAFKA-3956
> URL: https://issues.apache.org/jira/browse/KAFKA-3956
> Project: Kafka
> Issue Type: Bug
> Components: producer
> Affects Versions: 0.10.0.0
> Environment: JUnit test
> Reporter: Gavin Manning
>
> I pass false for autoComplete to MockProducer's constructor.
> I then call MockProducer.send().
> MockProducer.history() now contains that message.
> I would expect completeNext() to cause the message to be added to history and
> errorNext() to *not* add the message to history.
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